{"id":1121,"date":"2020-05-31T11:31:30","date_gmt":"2020-05-31T03:31:30","guid":{"rendered":"https:\/\/summid.icu\/?p=1121"},"modified":"2023-06-01T17:17:41","modified_gmt":"2023-06-01T09:17:41","slug":"leetcode_3","status":"publish","type":"post","link":"https:\/\/summid.icu\/index.php\/2020\/05\/31\/leetcode_3\/","title":{"rendered":"leetCode_\u5251\u6307offer\u9762\u8bd5\u9898(\u5b8c\uff09"},"content":{"rendered":"

\u9762\u8bd5\u989853 – I. \u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u6570\u5b57 I<\/span><\/h1>\n

\u7edf\u8ba1\u4e00\u4e2a\u6570\u5b57\u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\u3002<\/span><\/p>\n\n\n

\"\"<\/div><\/figure>\n\n\n

\u601d\u8def\uff1a\u5148\u7528\u4e8c\u5206\u6cd5\u67e5\u627etarget\uff0c\u7136\u540e\u67e5\u627etarget\u524d\u9762\u548c\u540e\u9762\u7684\u76f8\u540c\u7684\u503c\u3002<\/span><\/p>\n\n\n

class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0int\u00a0search(vector<int>&\u00a0nums,\u00a0int\u00a0target)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums.empty())\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0i=0,j=nums.size()-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0count=0,index,temp;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(i<=j)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0m\u00a0=\u00a0(i+j)\u00a0\/\u00a02;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums[m]==target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0index\u00a0=\u00a0m;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0temp\u00a0=\u00a0m;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0count++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0break;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0if(nums[m]\u00a0<\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0i\u00a0=\u00a0m\u00a0+\u00a01;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0if(nums[m]\u00a0>\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0j\u00a0=\u00a0m\u00a0-\u00a01;\u00a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(index\u00a0<\u00a0nums.size()-1)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0index++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums[index]==target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0count++;\n\t\t  else\n\t\t\t break;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0index\u00a0=\u00a0temp;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(index\u00a0>\u00a00)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0index--;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums[index]==target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0count++;\n\t\t  else\n\t\t\t break;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0count;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
\n\n\n
\u9762\u8bd5\u989853 – II. 0\uff5en-1\u4e2d\u7f3a\u5931\u7684\u6570\u5b57<\/span><\/h1>\n
\u4e00\u4e2a\u957f\u5ea6\u4e3an-1\u7684\u9012\u589e\u6392\u5e8f\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u6570\u5b57\u90fd\u662f\u552f\u4e00\u7684\uff0c\u5e76\u4e14\u6bcf\u4e2a\u6570\u5b57\u90fd\u5728\u8303\u56f40\uff5en-1\u4e4b\u5185\u3002\u5728\u8303\u56f40\uff5en-1\u5185\u7684n\u4e2a\u6570\u5b57\u4e2d\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\u6570\u5b57\u4e0d\u5728\u8be5\u6570\u7ec4\u4e2d\uff0c\u8bf7\u627e\u51fa\u8fd9\u4e2a\u6570\u5b57\u3002<\/span><\/p>\n\n\n
\"\"<\/div><\/figure>\n\n\n
\u4ee50\u5f00\u5934\u7684\u5347\u5e8f\u6570\u7ec4nums\uff0c\u82e5\u6bcf\u4e2a\u5143\u7d20\u90fd\u9012\u589e1\uff0ci\u4e3a\u6570\u7ec4nums\u7684\u4e0b\u6807\uff0c\u5219i=nums[i]\u3002<\/span>
\u77e5\u9053\u4e86\u8fd9\u4e2a\u7279\u6027\uff0c\u6211\u4eec\u4fbf\u53ef\u4ee5\u4ece\u5934\u904d\u5386\u6570\u7ec4\uff0c\u5224\u65ad\u5f53\u524d\u662f\u5426 i = nums[i]<\/span>
\u82e5 i \u2260 nums[i]\uff0c\u5219\u627e\u5230\u4e86\u7f3a\u5931\u6570\u5b57\uff0c\u8fd4\u56de i \u5373\u53ef\u3002<\/span><\/p>\n
\u4f46\u9012\u589e\u6392\u5e8f\u6570\u7ec4\u7684\u67e5\u627e\u9898\uff0c\u4e00\u822c\u53ef\u4ee5\u7528\u4e8c\u5206\u67e5\u627e\u6765\u964d\u4f4e\u65f6\u95f4\u590d\u6742\u5ea6\u3002<\/span><\/p>\n
\u601d\u8def\uff1a\u4e8c\u5206\u67e5\u627e<\/span>
\u6211\u4eec\u5c06\u6570\u7ec4\u5206\u4e3a\u4e24\u90e8\u5206\uff1a\u5de6\u5b50\u6570\u7ec4\u548c\u53f3\u5b50\u6570\u7ec4<\/span>
\u5de6\u5b50\u6570\u7ec4\uff1ai = nums[i]<\/span>
\u53f3\u5b50\u6570\u7ec4\uff1ai \u2260 nums[i]<\/span>
\u7f3a\u5931\u7684\u6570\u5b57\u7b49\u4e8e\u201c\u53f3\u5b50\u6570\u7ec4\u7684\u9996\u4f4d\u5143\u7d20\u201d\u5bf9\u5e94\u7684\u7d22\u5f15<\/span><\/p>\n\n\n
\"\"<\/div><\/figure>\n\n\n
    \n
  • \u5de6\u8fb9\u754c i = 0\uff0c\u53f3\u8fb9\u754c j = nums.size()\uff1b<\/span><\/li>\n
  • \u5f53 i \u2264 j \u65f6\u5faa\u73af\uff0c\u5373\u5f53\u95ed\u533a\u95f4[i\uff0cj]\u4e3a\u7a7a\u65f6\u8df3\u51fa\uff1b<\/span>\n
      \n
    • \u8ba1\u7b97\u4e2d\u70b9 m = (i+j) \/ 2\uff1b<\/span><\/li>\n
    • \u82e5 i = nums[i] \uff0c\u5219 \u53f3\u5b50\u6570\u7ec4\u7684\u9996\u4f4d\u5143\u7d20 \u4e00\u5b9a\u5728\u95ed\u533a\u95f4 [m+1\uff0cj] \u4e2d\uff0c\u56e0\u6b64\u6267\u884c i=m+1\uff1b<\/span><\/li>\n
    • \u82e5 i \u2260 nums[i] \uff0c\u5219 \u5de6\u5b50\u6570\u7ec4\u7684\u672b\u4f4d\u5143\u7d20 \u4e00\u5b9a\u5728\u95ed\u533a\u95f4 [i\uff0cm-1] \u4e2d\uff0c\u56e0\u6b64\u6267\u884c j=m-1\uff1b<\/span><\/li>\n<\/ul>\n<\/li>\n
    • \u8df3\u51fa\u65f6\uff0ci \u548c j\u5206\u522b\u6307\u5411 \u53f3\u5b50\u6570\u7ec4\u9996\u4f4d\u5143\u7d20\u548c \u5de6\u5b50\u6570\u7ec4\u9996\u4f4d\u5143\u7d20\u3002\u8fd4\u56de i \u3002<\/span><\/li>\n<\/ul>\n\n\n\n\n\n
      class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0int\u00a0missingNumber(vector<int>&\u00a0nums)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0i=0,j=nums.size()-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0m;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(i<=j)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0m\u00a0=\u00a0(i\u00a0+\u00a0j)\u00a0\/\u00a02;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(m\u00a0==\u00a0nums[m])\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0i\u00a0=\u00a0m\u00a0+\u00a01;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0j\u00a0=\u00a0m\u00a0-\u00a01;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0i;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
      \n\n\n
      \u9762\u8bd5\u989854. \u4e8c\u53c9\u641c\u7d22\u6811\u7684\u7b2ck\u5927\u8282\u70b9<\/span><\/h1>\n
      \u7ed9\u5b9a\u4e00\u68f5\u4e8c\u53c9\u641c\u7d22\u6811\uff0c\u8bf7\u627e\u51fa\u5176\u4e2d\u7b2ck\u5927\u7684\u8282\u70b9\u3002<\/span><\/p>\n\n\n
      \"\"<\/div><\/figure>\n\n\n
        \n
      • \u5728 \u9762\u8bd5\u989836. \u4e8c\u53c9\u641c\u7d22\u6811\u4e0e\u53cc\u5411\u94fe\u8868<\/strong> \u4e2d\uff0c\u6211\u4eec\u77e5\u9053\u4e8c\u53c9\u641c\u7d22\u6811\u7684\u4e2d\u5e8f\u904d\u5386\u5e8f\u5217\u662f\u9012\u589e\u7684\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4e2d\u5e8f\u904d\u5386\u4e2d\u627e\u5230\u4e8c\u53c9\u641c\u7d22\u6811\u7684\u7b2c k \u5c0f\u8282\u70b9\u3002<\/span><\/li>\n
      • \u8be5\u9898\u6c42\u4e8c\u53c9\u641c\u7d22\u6811\u7684\u7b2c k \u5927\u8282\u70b9\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u53cd\u7740\u4e2d\u5e8f\u904d\u5386\uff0c\u5373\u904d\u5386\u987a\u5e8f\u4e3a [\u53f3\u5b50\u6811 | \u6839 | \u5de6\u5b50\u6811]<\/span> \uff0c\u5f97\u5230\u7684\u4e3a\u964d\u5e8f\u5e8f\u5217\u3002<\/span><\/li>\n<\/ul>\n
          \n
        1. \u6211\u4eec\u7528 \u5168\u5c40\u53d8\u91cfcount<\/span> \u6765\u8868\u793a\u904d\u5386\u8fc7\u8282\u70b9\u7684\u4e2a\u6570\uff0c\u521d\u59cb\u503c\u4e3a k <\/span>\uff1b\u6bcf\u904d\u5386\u4e00\u4e2a\u8282\u70b9\uff0c count– \uff0c\u5f53 count = 0 \u65f6\u8868\u793a\u6211\u4eec\u627e\u5230\u4e86\u76ee\u6807\u8282\u70b9\u3002<\/span><\/li>\n
        2. \u7528 \u5168\u5c40\u53d8\u91cfres<\/span> \u6765\u5b58\u50a8\u8fd4\u56de\u503c\uff0c\u5f53 count = 0 \u65f6\uff0c\u5c06\u8282\u70b9\u7684 val <\/span> \u5b58\u8fdb res \u3002<\/span><\/li>\n
        3. count = 0 \u540e\uff0c\u540e\u9762\u7684\u9012\u5f52\u904d\u5386\u5c06\u6ca1\u6709\u610f\u4e49\uff0c\u4e8e\u662f\u5728 count = 0 \u540e\uff0c\u76f4\u63a5\u8fd4\u56de\uff0c\u4e0d\u518d\u9012\u5f52\u904d\u5386\u3002<\/span><\/li>\n<\/ol>\n\n\n
          \/**\n\u00a0*\u00a0Definition\u00a0for\u00a0a\u00a0binary\u00a0tree\u00a0node.\n\u00a0*\u00a0struct\u00a0TreeNode\u00a0{\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0val;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode\u00a0*left;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode\u00a0*right;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode(int\u00a0x)\u00a0:\u00a0val(x),\u00a0left(NULL),\u00a0right(NULL)\u00a0{}\n\u00a0*\u00a0};\n\u00a0*\/\nclass\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0int\u00a0count,res;\n\u00a0\u00a0\u00a0\u00a0int\u00a0kthLargest(TreeNode*\u00a0root,\u00a0int\u00a0k)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0count\u00a0=\u00a0k;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dfs(root);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0void\u00a0dfs(TreeNode\u00a0*node)\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(node\u00a0==\u00a0nullptr\u00a0||\u00a0count\u00a0==\u00a00)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dfs(node->right);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0count--;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(count\u00a0==\u00a00)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0=\u00a0node->val;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dfs(node->left);\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
          \n\n\n
          \u9762\u8bd5\u989855 – I. \u4e8c\u53c9\u6811\u7684\u6df1\u5ea6<\/span><\/h1>\n
          \u8f93\u5165\u4e00\u68f5\u4e8c\u53c9\u6811\u7684\u6839\u8282\u70b9\uff0c\u6c42\u8be5\u6811\u7684\u6df1\u5ea6\u3002\u4ece\u6839\u8282\u70b9\u5230\u53f6\u8282\u70b9\u4f9d\u6b21\u7ecf\u8fc7\u7684\u8282\u70b9\uff08\u542b\u6839\u3001\u53f6\u8282\u70b9\uff09\u5f62\u6210\u6811\u7684\u4e00\u6761\u8def\u5f84\uff0c\u6700\u957f\u8def\u5f84\u7684\u957f\u5ea6\u4e3a\u6811\u7684\u6df1\u5ea6\u3002<\/span><\/p>\n
          \u4f8b\u5982\uff1a<\/span>
          \u7ed9\u5b9a\u4e8c\u53c9\u6811 [3,9,20,null,null,15,7] <\/span> \uff0c<\/span><\/p>\n\n\n
          \"\"<\/div><\/figure>\n\n\n
          \u8fd4\u56de\u5b83\u7684\u6700\u5927\u6df1\u5ea6 3 \u3002<\/span>
          \u63d0\u793a\uff1a\u8282\u70b9\u603b\u6570 <= 10000<\/span><\/p>\n
          \u601d\u8def\uff1a\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\uff0c\u5148\u5e8f\u904d\u5386<\/span><\/p>\n
            \n
          • \u7533\u8bf7\u53d8\u91cf currentDepth=0 <\/span> \uff0c\u8bb0\u5f55\u5f53\u524d\u904d\u5386\u5230\u8282\u70b9\u7684\u6df1\u5ea6\uff0c\u6bcf\u5411\u4e0b\u904d\u5386\u4e00\u4e2a\u8282\u70b9\u5219 +1 \uff1b\u904d\u5386\u5230\u53f6\u5b50\u8282\u70b9\u540e\u8fd4\u56de\u524d -1 \u3002<\/span><\/li>\n
          • \u7533\u8bf7\u53d8\u91cf resDepth <\/span> \uff0c\u4ece\u53f6\u5b50\u8282\u70b9\u8fd4\u56de\u524d\uff0c\u4e14\u5728 currentDepth \u503c -1 \u524d\uff0c\u6267\u884c resDepth = max(resDepth,currentDepth); <\/span> \uff0c\u8bb0\u5f55\u5f53\u524d\u6700\u957f\u6df1\u5ea6\uff0c\u5f53\u904d\u5386\u5b8c\u4e8c\u53c9\u6811\u540e\uff0cresDepth\u4fdd\u5b58\u7684\u662f\u6811\u7684\u6700\u6df1\u6df1\u5ea6\u3002<\/span><\/li>\n
          • \u6700\u540e\u8fd4\u56de resDepth \u3002<\/span><\/li>\n<\/ul>\n\n\n
            \/**\n\u00a0*\u00a0Definition\u00a0for\u00a0a\u00a0binary\u00a0tree\u00a0node.\n\u00a0*\u00a0struct\u00a0TreeNode\u00a0{\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0val;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode\u00a0*left;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode\u00a0*right;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode(int\u00a0x)\u00a0:\u00a0val(x),\u00a0left(NULL),\u00a0right(NULL)\u00a0{}\n\u00a0*\u00a0};\n\u00a0*\/\nclass\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0int\u00a0currentDepth=0;\n\u00a0\u00a0\u00a0\u00a0int\u00a0resDepth;\n\u00a0\u00a0\u00a0\u00a0int\u00a0maxDepth(TreeNode*\u00a0root)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(root\u00a0==\u00a0nullptr)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dfs(root);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0resDepth;\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0void\u00a0dfs(TreeNode\u00a0*node)\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(node\u00a0==\u00a0nullptr)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0currentDepth++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dfs(node->left);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0dfs(node->right);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u6b64\u65f6\u4ece\u53f6\u5b50\u8282\u70b9\u8fd4\u56de\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0resDepth=max(resDepth,currentDepth);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0currentDepth--;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n
            \u601d\u8def\u4e8c\uff1a\u540e\u5e8f\u904d\u5386<\/span>
            \u6811\u7684\u6df1\u5ea6 = max(\u5de6\u5b50\u6811\u6df1\u5ea6\uff0c\u53f3\u5b50\u6811\u6df1\u5ea6) + 1\uff1b<\/span><\/p>\n\n\n
            class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0int\u00a0maxDepth(TreeNode*\u00a0root)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(root\u00a0==\u00a0nullptr)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0max(maxDepth(root->left),maxDepth(root->right))\u00a0+1;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
            \n\n\n
            \u9762\u8bd5\u989855 – II. \u5e73\u8861\u4e8c\u53c9\u6811<\/span><\/h1>\n
            \u8f93\u5165\u4e00\u68f5\u4e8c\u53c9\u6811\u7684\u6839\u8282\u70b9\uff0c\u5224\u65ad\u8be5\u6811\u662f\u4e0d\u662f\u5e73\u8861\u4e8c\u53c9\u6811\u3002\u5982\u679c\u67d0\u4e8c\u53c9\u6811\u4e2d\u4efb\u610f\u8282\u70b9\u7684\u5de6\u53f3\u5b50\u6811\u7684\u6df1\u5ea6\u76f8\u5dee\u4e0d\u8d85\u8fc71\uff0c\u90a3\u4e48\u5b83\u5c31\u662f\u4e00\u68f5\u5e73\u8861\u4e8c\u53c9\u6811\u3002<\/span><\/p>\n\n\n
            \"\"<\/div><\/figure>\n\n\n
            \u601d\u8def\u4e00\uff1a\u540e\u5e8f\u904d\u5386\uff0c\u81ea\u5e95\u5411\u4e0a\uff0c\u672c\u9898\u7684\u6700\u4f18\u89e3<\/span><\/p>\n
              \n
            • \u7531\u540e\u5e8f\u904d\u5386\u7684\u6027\u8d28\u53ef\u77e5\uff0c\u5f53\u68c0\u67e5\u5230\u8282\u70b9A\u65f6\uff0c\u5176\u5de6\u5b50\u6811\u4e0e\u53f3\u5b50\u6811\u4e5f\u5df2\u7ecf\u68c0\u67e5\u8fc7\u4e86\uff0c\u56e0\u6b64\u6211\u4eec\u53ea\u9700\u8981\u6bd4\u8f83\u5176\u5de6\u53f3\u5b50\u6811\u7684\u6df1\u5ea6\u662f\u5426 \u2264 1 \u5373\u53ef\uff1a\u82e5\u6df1\u5ea6 \u2264 1 \uff0c\u5219\u8fd4\u56de\u5f53\u524d\u5b50\u6811\u7684\u6df1\u5ea6\uff0c\u5426\u5219\u8fd4\u56de -1 \uff0c\u8868\u793a\u5b50\u6811\u4e0d\u5e73\u8861\u3002<\/span><\/li>\n
            • \u5982\u4f55\u8ba1\u7b97\u5b50\u6811\u7684\u6df1\u5ea6\uff1a\u5f53\u524d\u5b50\u6811\u6839\u8282\u70b9\u7684\u5de6\u5b50\u6811\u6df1\u5ea6\u4e0e\u53f3\u5b50\u6811\u6df1\u5ea6\u7684\u6700\u5927\u503c+1 \uff1b\u82e5\u6839\u8282\u70b9\u4e3a\u7a7a\uff0c\u5219\u6df1\u5ea6\u4e3a0 \u3002<\/span><\/li>\n<\/ul>\n\n\n
              \/**\n\u00a0*\u00a0Definition\u00a0for\u00a0a\u00a0binary\u00a0tree\u00a0node.\n\u00a0*\u00a0struct\u00a0TreeNode\u00a0{\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0val;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode\u00a0*left;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode\u00a0*right;\n\u00a0*\u00a0\u00a0\u00a0\u00a0\u00a0TreeNode(int\u00a0x)\u00a0:\u00a0val(x),\u00a0left(NULL),\u00a0right(NULL)\u00a0{}\n\u00a0*\u00a0};\n\u00a0*\/\nclass\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0bool\u00a0isBalanced(TreeNode*\u00a0root)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(dfs(root)\u00a0!=\u00a0-1)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0true;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0false;\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0int\u00a0dfs(TreeNode\u00a0*node)\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(node\u00a0==\u00a0nullptr)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0leftDepth\u00a0=\u00a0dfs(node->left);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u526a\u679d\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(leftDepth\u00a0==\u00a0-1)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0rightDepth\u00a0=\u00a0dfs(node->right);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u526a\u679d\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(rightDepth\u00a0==\u00a0-1)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0-1;\n\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(abs(leftDepth\u00a0-\u00a0rightDepth)<=1)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0max(leftDepth,rightDepth)\u00a0+\u00a01;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0-1;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n
              \u601d\u8def\u4e8c\uff1a\u524d\u5e8f\u904d\u5386\uff0c\u81ea\u9876\u5411\u4e0b\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u8f83\u9ad8<\/p>\n
              \u524d\u5e8f\u904d\u5386\u7684\u4e2d\u5fc3\u601d\u60f3\u4e0e\u4e0a\u4e00\u9898\u201c\u4e8c\u53c9\u6811\u7684\u6df1\u5ea6\u201d\u7c7b\u4f3c\uff0c\u5c31\u662f\u8ba1\u7b97\u6bcf\u68f5\u5b50\u6811\u7684\u6df1\u5ea6\u3002<\/p>\n\n\n
              class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0bool\u00a0isBalanced(TreeNode*\u00a0root)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(root\u00a0==\u00a0nullptr)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0true;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0abs(dfs(root->left)\u00a0-\u00a0dfs(root->right))<=1\u00a0&&\u00a0isBalanced(root->left)\u00a0&&\u00a0isBalanced(root->right);\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0int\u00a0dfs(TreeNode\u00a0*node)\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(node\u00a0==\u00a0nullptr)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0max(dfs(node->left),dfs(node->right))\u00a0+1;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
              \n\n\n
              \u9762\u8bd5\u989856 – I. \u6570\u7ec4\u4e2d\u6570\u5b57\u51fa\u73b0\u7684\u6b21\u6570<\/span><\/h1>\n
              \u4e00\u4e2a\u6574\u578b\u6570\u7ec4 nums \u91cc\u9664\u4e24\u4e2a\u6570\u5b57\u4e4b\u5916\uff0c\u5176\u4ed6\u6570\u5b57\u90fd\u51fa\u73b0\u4e86\u4e24\u6b21\u3002\u8bf7\u5199\u7a0b\u5e8f\u627e\u51fa\u8fd9\u4e24\u4e2a\u53ea\u51fa\u73b0\u4e00\u6b21\u7684\u6570\u5b57\u3002\u8981\u6c42\u65f6\u95f4\u590d\u6742\u5ea6\u662fO(n)\uff0c\u7a7a\u95f4\u590d\u6742\u5ea6\u662fO(1)\u3002<\/span><\/p>\n\n\n
              \"\"<\/div><\/figure>\n\n\n
              \u6700\u76f4\u89c2\u7684\u65b9\u6cd5\u662f\u7528\u54c8\u5e0c\u8868<\/span><\/p>\n\n\n
              class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0singleNumbers(vector<int>&\u00a0nums)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0unordered_map<int,int>\u00a0mp;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(auto\u00a0n:nums)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mp[n]++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(auto\u00a0n:nums)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(mp[n]==1)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res.push_back(n);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n
              \u4f46\u9898\u76ee\u8981\u6c42\u65f6\u95f4\u590d\u6742\u5ea6\u662f<\/span>O(n)<\/span>\uff0c\u7a7a\u95f4\u590d\u6742\u5ea6\u662f<\/span>O(1)<\/span><\/span><\/p>\n
              \u601d\u8def\uff1a\u5206\u7ec4\u4f4d\u8fd0\u7b97\uff0c\u5f02\u6216\u8fd0\u7b97\uff08\u9898\u89e3\u65b9\u6cd5\u6765\u81ealeetCode\u9898\u89e3\u2014\u2014<\/span>eddie\u4e5f\u6709\u5927\u5382\u68a6\u5927\u4f6c\uff09<\/p>\n
              \u7531\u4e8e\u6570\u7ec4\u4e2d\u5b58\u5728\u7740\u4e24\u4e2a\u6570\u5b57\u4e0d\u91cd\u590d\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u5c06\u6240\u6709\u7684\u6570\u5b57\u5f02\u6216\u64cd\u4f5c\u8d77\u6765\uff0c\u6700\u7ec8\u5f97\u5230\u7684\u7ed3\u679c\u662f\u8fd9\u4e24\u4e2a\u6570\u5b57\u7684\u5f02\u6216\u7ed3\u679c\uff1a(\u76f8\u540c\u7684\u4e24\u4e2a\u6570\u5b57\u76f8\u4e92\u5f02\u6216\uff0c\u503c\u4e3a0) \u6700\u540e\u7ed3\u679c\u4e00\u5b9a\u4e0d\u4e3a0\uff0c\u56e0\u4e3a\u6709\u4e24\u4e2a\u6570\u5b57\u4e0d\u91cd\u590d\u3002<\/p>\n
              \u63d2\u4e00\u53e5\uff1a\u5982\u679c\u9898\u76ee\u7b80\u5355\u70b9\u6539\u6210\u53ea\u6709\u4e00\u4e2a\u6570\u5b57\u4e0d\u91cd\u590d\uff0c\u90a3\u6837\u6211\u4eec\u76f4\u63a5\u5c06\u6240\u6709\u6570\u5b57\u5f02\u6216\u8fd0\u7b97\u8d77\u6765\uff0c\u6700\u540e\u7684\u7ed3\u679c\u5c31\u662f\u53ea\u51fa\u73b0\u4e00\u6b21\u7684\u6570\u5b57\u3002<\/p>\n
              \u4e3e\u4f8b\uff1a<\/p>\n\n\n
              \"\"<\/div><\/figure>\n\n\n
              \u6b64\u65f6\u6211\u4eec\u65e0\u6cd5\u901a\u8fc7 111\uff08\u4e8c\u8fdb\u5236\uff09\uff0c\u53bb\u83b7\u5f97 110 \u548c 001\u3002<\/span><\/p>\n
              \u90a3\u4e48\u5f53\u6211\u4eec\u53ef\u4ee5\u628a\u6570\u7ec4\u5206\u4e3a\u4e24\u7ec4\u8fdb\u884c\u5f02\u6216\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u77e5\u9053\u662f\u54ea\u4e24\u4e2a\u6570\u5b57\u4e0d\u540c\u4e86\u3002<\/span><\/p>\n
              \u6211\u4eec\u53ef\u4ee5\u60f3\u4e00\u4e0b\u5982\u4f55\u5206\u7ec4\uff1a<\/span><\/p>\n
                \n
              • \u91cd\u590d\u7684\u6570\u5b57\u8fdb\u884c\u5206\u7ec4\uff0c\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u8981\u6709\u4e00\u4e2a\u7edf\u4e00\u7684\u89c4\u5219\uff0c\u5c31\u53ef\u4ee5\u628a\u76f8\u540c\u7684\u6570\u5b57\u5206\u5230\u540c\u4e00\u7ec4\u4e86\u3002\u4f8b\u5982\uff1a\u5947\u5076\u5206\u7ec4\u3002\u56e0\u4e3a\u91cd\u590d\u7684\u6570\u5b57\uff0c\u6570\u503c\u90fd\u662f\u4e00\u6837\u7684\uff0c\u6240\u4ee5\u4e00\u5b9a\u4f1a\u5206\u5230\u540c\u4e00\u7ec4\uff01<\/span><\/li>\n
              • \u6b64\u65f6\u7684\u96be\u70b9\u5728\u4e8e\uff0c\u5bf9\u4e24\u4e2a\u4e0d\u540c\u6570\u5b57\u7684\u5206\u7ec4\u3002
                <\/span>\u6b64\u65f6\u6211\u4eec\u8981\u627e\u5230\u4e00\u4e2a\u64cd\u4f5c\uff0c\u8ba9\u4e24\u4e2a\u6570\u5b57\u8fdb\u884c\u8fd9\u4e2a\u64cd\u4f5c\u540e\uff0c\u5206\u4e3a\u4e24\u7ec4\u3002<\/span>
                \u6211\u4eec\u6700\u5bb9\u6613\u60f3\u5230\u7684\u5c31\u662f & 1 \u64cd\u4f5c\uff0c \u5f53\u6211\u4eec\u5bf9\u5947\u5076\u5206\u7ec4\u65f6\uff0c\u5bb9\u6613\u5730\u60f3\u5230 & 1\uff0c\u5373\u7528\u4e8e\u5224\u65ad\u6700\u540e\u4e00\u4f4d\u4e8c\u8fdb\u5236\u662f\u5426\u4e3a 1\u3002\u6765\u8fa8\u522b\u5947\u5076\u3002<\/span><\/li>\n<\/ul>\n
                \u4f60\u770b\uff0c\u901a\u8fc7 & \u8fd0\u7b97\u6765\u5224\u65ad\u4e00\u4f4d\u6570\u5b57\u4e0d\u540c\u5373\u53ef\u5206\u4e3a\u4e24\u7ec4\uff0c\u90a3\u4e48\u6211\u4eec\u968f\u4fbf\u4e24\u4e2a\u4e0d\u540c\u7684\u6570\u5b57\u81f3\u5c11\u4e5f\u6709\u4e00\u4f4d\u4e0d\u540c\u5427\uff01<\/span><\/p>\n
                \u6211\u4eec\u53ea\u9700\u8981\u627e\u51fa\u90a3\u4f4d\u4e0d\u540c\u7684\u6570\u5b57mask\uff0c\u5373\u53ef\u5b8c\u6210\u5206\u7ec4\uff08 & mask \uff09\u64cd\u4f5c\u3002<\/span><\/p>\n
                \u7531\u4e8e\u4e24\u4e2a\u6570\u5f02\u6216\u7684\u7ed3\u679c\u5c31\u662f\u4e24\u4e2a\u6570\u6570\u4f4d\u4e0d\u540c\u7ed3\u679c\u7684\u76f4\u89c2\u8868\u73b0\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5f02\u6216\u540e\u7684\u7ed3\u679c\u53bb\u627e mask\uff01<\/span><\/p>\n
                \u6240\u6709\u7684\u53ef\u884c mask \u4e2a\u6570\uff0c\u90fd\u4e0e\u5f02\u6216\u540e1\u7684\u4f4d\u6570\u6709\u5173\u3002<\/span><\/p>\n\n\n
                \"\"<\/div><\/figure>\n\n\n
                \u4e3a\u4e86\u64cd\u4f5c\u65b9\u4fbf\uff0c\u6211\u4eec\u53ea\u53bb\u627e\u6700\u4f4e\u4f4d\u7684<\/span>mask<\/span><\/p>\n\n\n
                class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0singleNumbers(vector<int>&\u00a0nums)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u5c06\u6240\u6709\u6570\u5f02\u6216\u8d77\u6765\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0k=0;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(auto\u00a0n:nums)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0k\u00a0^=\u00a0n;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u83b7\u53d6k\u4e2d\u6700\u4f4e\u4f4d\u76841\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0mask=1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while((k\u00a0&\u00a0mask)==0)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mask\u00a0<<=1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u5c06nums\u5206\u6210a\u3001b\u4e24\u7ec4\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0a=0,b=0;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(auto\u00a0n:nums)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if((n\u00a0&\u00a0mask)==0)\u00a0\/\/mask\u4f4d\u4e3a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a\u00a0^=\u00a0n;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0\u00a0\/\/mask\u4f4d\u4e3a1\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0b\u00a0^=\u00a0n;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0res{a,b};\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                \n\n\n
                \u9762\u8bd5\u989856 – II. \u6570\u7ec4\u4e2d\u6570\u5b57\u51fa\u73b0\u7684\u6b21\u6570 II<\/span><\/h1>\n
                \u5728\u4e00\u4e2a\u6570\u7ec4 nums \u4e2d\u9664\u4e00\u4e2a\u6570\u5b57\u53ea\u51fa\u73b0\u4e00\u6b21\u4e4b\u5916\uff0c\u5176\u4ed6\u6570\u5b57\u90fd\u51fa\u73b0\u4e86\u4e09\u6b21\u3002\u8bf7\u627e\u51fa\u90a3\u4e2a\u53ea\u51fa\u73b0\u4e00\u6b21\u7684\u6570\u5b57\u3002<\/span><\/p>\n\n\n
                \"\"<\/div><\/figure>\n\n\n
                \u6700\u4f73\u9898\u89e3\u6d89\u53ca\u5230\u6709\u9650\u72b6\u6001\u81ea\u52a8\u673a\uff0c\u6211\u8fd8\u662f\u7528\u54c8\u5e0c\u8868\u5427ORZ<\/span><\/p>\n\n\n
                class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0int\u00a0singleNumber(vector<int>&\u00a0nums)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0unordered_map<int,int>\u00a0mp;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(auto\u00a0n:nums)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0mp[n]++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(auto\u00a0n:nums)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(mp[n]\u00a0==\u00a01)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0=\u00a0n;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                \n\n\n
                \u9762\u8bd5\u989857. \u548c\u4e3as\u7684\u4e24\u4e2a\u6570\u5b57<\/span><\/h1>\n
                \u8f93\u5165\u4e00\u4e2a\u9012\u589e\u6392\u5e8f\u7684\u6570\u7ec4\u548c\u4e00\u4e2a\u6570\u5b57s\uff0c\u5728\u6570\u7ec4\u4e2d\u67e5\u627e\u4e24\u4e2a\u6570\uff0c\u4f7f\u5f97\u5b83\u4eec\u7684\u548c\u6b63\u597d\u662fs\u3002\u5982\u679c\u6709\u591a\u5bf9\u6570\u5b57\u7684\u548c\u7b49\u4e8es\uff0c\u5219\u8f93\u51fa\u4efb\u610f\u4e00\u5bf9\u5373\u53ef\u3002<\/span><\/p>\n\n\n
                \"\"<\/div><\/figure>\n\n\n
                \u8fd9\u9053\u9898\u53ef\u4ee5\u7528\u54c8\u5e0c\u8868\u3001\u4e8c\u5206\u67e5\u627e\u548c\u53cc\u6307\u9488\u505a\u3002<\/span><\/p>\n
                \u601d\u8def\uff1a\u53cc\u6307\u9488<\/span><\/p>\n\n\n
                class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0twoSum(vector<int>&\u00a0nums,\u00a0int\u00a0target)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0l=0,r=nums.size()-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0ans;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(l<r)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0res\u00a0=\u00a0nums[l]+nums[r];\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(res\u00a0==\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ans.push_back(nums[l]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0ans.push_back(nums[r]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0ans;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(res\u00a0<\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0l++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(res\u00a0>\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0r--;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0ans;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                \n\n\n
                \u9762\u8bd5\u989857 – II. \u548c\u4e3as\u7684\u8fde\u7eed\u6b63\u6570\u5e8f\u5217<\/span><\/h1>\n
                \u8f93\u5165\u4e00\u4e2a\u6b63\u6574\u6570 target \uff0c\u8f93\u51fa\u6240\u6709\u548c\u4e3a target \u7684\u8fde\u7eed\u6b63\u6574\u6570\u5e8f\u5217\uff08\u81f3\u5c11\u542b\u6709\u4e24\u4e2a\u6570\uff09\u3002<\/span><\/p>\n
                \u5e8f\u5217\u5185\u7684\u6570\u5b57\u7531\u5c0f\u5230\u5927\u6392\u5217\uff0c\u4e0d\u540c\u5e8f\u5217\u6309\u7167\u9996\u4e2a\u6570\u5b57\u4ece\u5c0f\u5230\u5927\u6392\u5217\u3002<\/span><\/p>\n\n\n
                \"\"<\/div><\/figure>\n\n\n
                \u601d\u8def\uff1a\u53cc\u6307\u9488\uff08\u6ed1\u52a8\u7a97\u53e3\uff09<\/span><\/p>\n
                \u53d8\u91cf\uff1a\u6307\u5411\u6ed1\u52a8\u7a97\u53e3\u5185\u6700\u5de6\u5143\u7d20 \u5de6\u6307\u9488l <\/span> \uff0c\u6307\u5411\u6ed1\u52a8\u7a97\u53e3\u5185\u6700\u53f3\u5143\u7d20 \u53f3\u6307\u9488r <\/span> \uff0c\u5f53\u524d\u6ed1\u52a8\u7a97\u53e3\u5185\u7684\u548c sum <\/span> \u3002<\/span><\/p>\n
                \u7b97\u6cd5\u89e3\u6790\uff1a<\/span><\/p>\n
                  \n
                • \n
                  \u5faa\u73af\u6267\u884c\u4e0b\u5217\u6b65\u9aa4\uff0c\u5f53 l \u2265 r \u65f6\u8df3\u51fa\uff1a<\/p>\n<\/li>\n
                • \n
                  \u8ba1\u7b97\u6ed1\u52a8\u7a97\u53e3\u5185\u7684<\/span> sum<\/span>\uff0c\u53ef\u7531\u7b49\u5dee\u6570\u5217\u6c42\u548c\u516c\u5f0f<\/span>Sn=n(a1+an)\/2<\/span>\u5f97\u51fa<\/span>sum=(l+r)*(r-l+1)\/2<\/span>\u3002<\/span><\/p>\n<\/li>\n
                • \n
                  \u6bd4\u8f83 <\/span>sum <\/span>\u548c <\/span>target <\/span>\u503c\u7684\u5927\u5c0f<\/span>\uff1a<\/span><\/p>\n
                    \n
                  • \n
                    \u82e5sum<\/span>==target<\/span>\uff0c\u5219\u8be5\u6ed1\u52a8\u7a97\u53e3\u5185\u662f\u6211\u4eec\u8981\u627e\u7684\u5e8f\u5217\uff0c\u5c06\u5b83\u4eec\u4f9d\u6b21\u4fdd\u5b58\u8fdb \u4e34\u65f6\u6570\u7ec4temp <\/span> \uff0c\u518d\u5c06temp\u88c5\u8fdb \u7ed3\u679c\u6570\u7ec4res <\/span> \u3002\u6bcf\u4e2a\u6570\u5b57\u5f00\u5934\u7684\u5e8f\u5217\uff0c\u6700\u591a\u53ea\u6709\u4e00\u9879\u7b26\u5408\u8981\u6c42\uff0c\u56e0\u6b64 \u5de6\u6307\u9488l<\/span><\/span>++ <\/span> <\/span>\uff1b<\/span><\/p>\n<\/li>\n
                  • \n
                    \u82e5sum<\/span><target<\/span>\uff0c\u5219\u8bf4\u660e\u8fd8\u9700\u8981\u518d\u5f80\u6ed1\u52a8\u7a97\u53e3\u5185\u6dfb\u52a0\u65b0\u503c\uff0c\u56e0\u6b64 <\/span>r++<\/span> <\/span>\uff1b<\/span><\/p>\n<\/li>\n
                  • \n
                    \u82e5sum<\/span>>target<\/span>\uff0c\u5219\u8bf4\u660e\u5f53\u524d<\/span> l<\/span> \u6307\u9488\u6240\u6307\u5411\u7684\u6570\u5b57\u5f00\u5934\u7684\u5e8f\u5217\u6ca1\u6709\u7b26\u5408\u8981\u6c42\u7684\uff0c\u56e0\u6b64 l<\/span><\/span>++ <\/span> <\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0vector<vector<int>>\u00a0findContinuousSequence(int\u00a0target)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<vector<int>>\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0temp;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0l=1,r=2,sum;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(l<r)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u7b49\u5dee\u6570\u5217\u6c42\u548c\u516c\u5f0f\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sum\u00a0=\u00a0(l+r)*(r-l+1)\/2;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(sum\u00a0==\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0temp.clear();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i=l;i<=r;++i)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0temp.push_back(i);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res.push_back(temp);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0l++;\/\/\u4e0d\u8981\u5fd8\u4e86\u79fb\u52a8\u5de6\u6307\u9488\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0if(sum\u00a0<\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0r++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0if(sum\u00a0>\u00a0target)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0l++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                    \n\n\n
                    \u9762\u8bd5\u989858 – I. \u7ffb\u8f6c\u5355\u8bcd\u987a\u5e8f<\/span><\/h1>\n
                    \u8f93\u5165\u4e00\u4e2a\u82f1\u6587\u53e5\u5b50\uff0c\u7ffb\u8f6c\u53e5\u5b50\u4e2d\u5355\u8bcd\u7684\u987a\u5e8f\uff0c\u4f46\u5355\u8bcd\u5185\u5b57\u7b26\u7684\u987a\u5e8f\u4e0d\u53d8\u3002\u4e3a\u7b80\u5355\u8d77\u89c1\uff0c\u6807\u70b9\u7b26\u53f7\u548c\u666e\u901a\u5b57\u6bcd\u4e00\u6837\u5904\u7406\u3002\u4f8b\u5982\u8f93\u5165\u5b57\u7b26\u4e32”I am a student. “\uff0c\u5219\u8f93\u51fa”student. a am I”\u3002<\/span><\/p>\n\n\n
                    \"\"<\/div><\/figure>\n\n\n
                    \u601d\u8def\uff1a<\/span>
                    \u5148\u4e0d\u8003\u8651\u591a\u4f59\u7a7a\u683c\u7684\u95ee\u9898\uff0c\u8981\u7ffb\u8f6c\u5355\u8bcd\u987a\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u7ffb\u8f6c\u6bcf\u4e2a\u5355\u8bcd\u4e2d\u5b57\u7b26\u7684\u987a\u5e8f\uff0c\u5f97\u5230\u5e8f\u5217s\uff0c\u7136\u540e\u518d\u7ffb\u8f6c\u5e8f\u5217s\u4e2d\u6bcf\u4e2a\u5b57\u7b26\u7684\u987a\u5e8f\u3002<\/span>
                    \u5269\u4e0b\u7684\u5c31\u662f\u5904\u7406\u591a\u4f59\u7a7a\u683c\u4e86\u3002<\/span><\/p>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0string\u00a0reverseWords(string\u00a0s)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(s.empty())\u00a0\u00a0return\u00a0\"\";\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0k=0,e=s.size()-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(k<s.size()\u00a0&&\u00a0s[k]=='\u00a0')\/\/\u6d88\u9664\u5934\u90e8\u7a7a\u683c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0k++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(e>=0\u00a0&&\u00a0s[e]=='\u00a0')\/\/\u6d88\u9664\u5c3e\u90e8\u7a7a\u683c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0e--;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(k>=s.size()\u00a0||\u00a0e<0)\/\/\u5f53\u8f93\u5165\u53ea\u6709\u7a7a\u683c\u65f6\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0\"\";\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0temp=\"\",res=\"\";\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i=k;i<=e;i++)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(s[i]\u00a0!=\u00a0'\u00a0')\/\/\u5c06\u5355\u8bcd\u653e\u5165temp\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0temp\u00a0+=\u00a0s[i];\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\/\/\u5f53\u9047\u5230\u5355\u8bcd\u95f4\u7684\u7a7a\u683c\u65f6\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(s[i]\u00a0==\u00a0'\u00a0')\/\/\u6d88\u9664\u5355\u8bcd\u95f4\u591a\u4f59\u7a7a\u683c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0i++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0i--;\/\/\u62b5\u6d88for\u5faa\u73af\u7684i++\uff0c\u4e0d\u7136\u4e0b\u4e2a\u5355\u8bcd\u9996\u5b57\u6bcd\u4f1a\u88ab\u5ffd\u7565\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0+=\u00a0swapstr(temp);\/\/\u5c06\u5355\u8bcd\u4e2d\u5b57\u6bcd\u7ffb\u8f6c\u540e\u653e\u5165res\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0+=\u00a0\"\u00a0\";\/\/\u52a0\u4e0a\u5355\u8bcd\u4e4b\u95f4\u7684\u4e00\u4e2a\u7a7a\u683c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0temp=\"\";\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u8df3\u51fa\u5faa\u73af\u540e\uff0ctemp\u4e2d\u8fd8\u6709\u4e00\u4e2a\u5355\u8bcd\u6ca1\u6709\u5904\u7406\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0+=\u00a0swapstr(temp);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u6700\u540e\u5c06res\u6574\u4f53\u7ffb\u8f6c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0swapstr(res);\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0string\u00a0swapstr(string\u00a0s)\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0i=0,j=s.size()-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(i<j)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0swap(s[i++],s[j--]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0s;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                    \n\n\n
                    \u9762\u8bd5\u989858 – II. \u5de6\u65cb\u8f6c\u5b57\u7b26\u4e32<\/span><\/h1>\n
                    \u5b57\u7b26\u4e32\u7684\u5de6\u65cb\u8f6c\u64cd\u4f5c\u662f\u628a\u5b57\u7b26\u4e32\u524d\u9762\u7684\u82e5\u5e72\u4e2a\u5b57\u7b26\u8f6c\u79fb\u5230\u5b57\u7b26\u4e32\u7684\u5c3e\u90e8\u3002\u8bf7\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u5b9e\u73b0\u5b57\u7b26\u4e32\u5de6\u65cb\u8f6c\u64cd\u4f5c\u7684\u529f\u80fd\u3002\u6bd4\u5982\uff0c\u8f93\u5165\u5b57\u7b26\u4e32”abcdefg”\u548c\u6570\u5b572\uff0c\u8be5\u51fd\u6570\u5c06\u8fd4\u56de\u5de6\u65cb\u8f6c\u4e24\u4f4d\u5f97\u5230\u7684\u7ed3\u679c”cdefgab”\u3002<\/p>\n\n\n
                    \"\"<\/div><\/figure>\n\n\n
                    \u601d\u8def\u4e00\uff1a\u6700\u76f4\u89c2\u7684\u65b9\u6cd5\u662f\u62fc\u63a5\u4e24\u4e2a\u5b50\u5b57\u7b26\u4e32<\/span><\/p>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0string\u00a0reverseLeftWords(string\u00a0s,\u00a0int\u00a0n)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0string\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i=n;i<s.size();++i)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0+=\u00a0s[i];\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i=0;i<n;++i)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res\u00a0+=\u00a0s[i];\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n
                    \u601d\u8def\u4e8c\uff1a\u539f\u5730\u4ea4\u6362\uff1a\u5757\u4ea4\u6362<\/span>
                    “abcdefg”\uff1b\u5148\u4ea4\u6362\u524d\u4e24\u4e2a\uff1a”bacdefg”\uff1b\u518d\u4ea4\u6362\u5269\u4e0b\u7684\uff1a”bagfedc”\uff1b<\/span>
                    \u6700\u540e\u6574\u4f53\u4ea4\u6362\uff1a”cdefgab”\u3002<\/span><\/p>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0string\u00a0reverseLeftWords(string\u00a0s,\u00a0int\u00a0n)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0len\u00a0=\u00a0s.size();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i\u00a0=\u00a00;i\u00a0<\u00a0n\/\u00a02;i++)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0swap(s[i],s[n\u00a0-\u00a0i\u00a0-\u00a01]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i\u00a0=\u00a0n;i\u00a0<\u00a0(len\u00a0+\u00a0n)\u00a0\/\u00a02;i++)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0swap(s[i],s[len\u00a0-\u00a0(i\u00a0-\u00a0n)\u00a0-\u00a01]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i\u00a0=\u00a00;i\u00a0<\u00a0len\u00a0\/\u00a02;i++)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0swap(s[i],s[len\u00a0-\u00a0i\u00a0-\u00a01]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0s;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                    \n\n\n
                    \u9762\u8bd5\u989859 – I. \u6ed1\u52a8\u7a97\u53e3\u7684\u6700\u5927\u503c<\/span><\/h1>\n
                    \u7ed9\u5b9a\u4e00\u4e2a\u6570\u7ec4<\/span> nums <\/span>\u548c\u6ed1\u52a8\u7a97\u53e3\u7684\u5927\u5c0f<\/span> k<\/span>\uff0c\u8bf7\u627e\u51fa\u6240\u6709\u6ed1\u52a8\u7a97\u53e3\u91cc\u7684\u6700\u5927\u503c\u3002<\/span><\/p>\n\n\n
                    \"\"<\/div><\/figure>\n\n\n
                    \u63d0\u793a\uff1a<\/p>\n
                    \n<\/p>
                    \u4f60\u53ef\u4ee5\u5047\u8bbe k \u603b\u662f\u6709\u6548\u7684\uff0c\u5728\u8f93\u5165\u6570\u7ec4\u4e0d\u4e3a\u7a7a\u7684\u60c5\u51b5\u4e0b\uff0c1 \u2264 k \u2264 \u8f93\u5165\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/p>\n
                    \u601d\u8def\u4e00\uff1a\u7528\u53cc\u7aef\u961f\u5217\uff0c\u5355\u8c03\u961f\u5217<\/p>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0maxSlidingWindow(vector<int>&\u00a0nums,\u00a0int\u00a0k)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0deque<int>\u00a0q;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0l=0,r;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums.empty())\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(r=0;r<k;++r)\/\/\u8fd8\u672a\u5f62\u6210\u7a97\u53e3\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u961f\u5217\u4e2d\u53ea\u4fdd\u7559\u961f\u9996\u5143\u7d20\u548c\u6bd4\u5b83\u5c0f\u7684\u964d\u5e8f\u5e8f\u5217\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(!q.empty()\u00a0&&\u00a0q.back()<nums[r])\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.pop_back();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u7a97\u53e3\u4e2d\u65b0\u589e\u5143\u7d20\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.push_back(nums[r]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u521a\u521a\u5f62\u6210\u7a97\u53e3\u540e\u4e5f\u8981\u52a0\u5165res\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res.push_back(q.front());\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u5f62\u6210\u7a97\u53e3\u4e4b\u540e\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(r=k;r<nums.size();++r)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u5982\u679c\u961f\u9996\u5143\u7d20\u5df2\u7ecf\u4e0d\u5728\u7a97\u53e3\u91cc\uff0c\u51fa\u961fl\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(!q.empty()\u00a0&&\u00a0q.front()\u00a0==\u00a0nums[l])\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.pop_front();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0l++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u76f8\u540c\u7684\uff0c\u961f\u5217\u4e2d\u53ea\u4fdd\u7559\u961f\u9996\u5143\u7d20\u548c\u6bd4\u5b83\u5c0f\u7684\u964d\u5e8f\u5e8f\u5217\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(!q.empty()\u00a0&&\u00a0q.back()<nums[r])\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.pop_back();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u7a97\u53e3\u4e2d\u65b0\u589e\u5143\u7d20\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.push_back(nums[r]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u52a0\u5165res\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res.push_back(q.front());\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n
                    \u601d\u8def\u4e8c\uff1a\u66b4\u529b\u904d\u5386\uff0c\u7a97\u53e3\u4e2d\u6bcf\u65b0\u589e\u548c\u6dd8\u6c70\u6570\u540e\u5c31\u627e\u51fa\u7a97\u53e3\u4e2d\u6700\u5927\u7684\u6570\u3002<\/p>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0maxSlidingWindow(vector<int>&\u00a0nums,\u00a0int\u00a0k)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vector<int>\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0l=0,r=k-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(;r<nums.size();++l,++r)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0maxNum=nums[l];\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i=l+1;i<=r;++i)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0maxNum=max(maxNum,nums[i]);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0res.push_back(maxNum);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                    \n\n\n
                    \u9762\u8bd5\u989859 – II. \u961f\u5217\u7684\u6700\u5927\u503c<\/span><\/h1>\n
                    \u8bf7\u5b9a\u4e49\u4e00\u4e2a\u961f\u5217\u5e76\u5b9e\u73b0\u51fd\u6570 max_value \u5f97\u5230\u961f\u5217\u91cc\u7684\u6700\u5927\u503c\uff0c\u8981\u6c42\u51fd\u6570max_value\u3001push_back \u548c pop_front \u7684\u5747\u644a\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u662fO(1)\u3002<\/p>\n
                    \n<\/p>
                    \u82e5\u961f\u5217\u4e3a\u7a7a\uff0cpop_front \u548c max_value \u9700\u8981\u8fd4\u56de -1<\/p>\n\n\n
                    \"\"<\/div><\/figure>\n\n\n\n
                    \"\"<\/div><\/figure>\n\n\n
                    \u8be5\u56fe\u6765\u81ea\u9898\u89e3\u533a\u5927\u4f6c@\u652f\u4ed8\u4e2d\u5fc3\u3002<\/p>\n\n\n
                    class\u00a0MaxQueue\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0queue<int>\u00a0q;\n\u00a0\u00a0\u00a0\u00a0deque<int>\u00a0deq;\n\u00a0\u00a0\u00a0\u00a0MaxQueue()\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0int\u00a0max_value()\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(deq.empty())\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0deq.front();\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0void\u00a0push_back(int\u00a0value)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.push(value);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0while(!deq.empty()\u00a0&&\u00a0deq.back()<value)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0deq.pop_back();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0deq.push_back(value);\n\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0int\u00a0pop_front()\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(q.empty())\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0-1;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(q.front()\u00a0==\u00a0deq.front())\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0deq.pop_front();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0res=q.front();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.pop();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0res=q.front();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0q.pop();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0res;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0}\n};\n\/**\n\u00a0*\u00a0Your\u00a0MaxQueue\u00a0object\u00a0will\u00a0be\u00a0instantiated\u00a0and\u00a0called\u00a0as\u00a0such:\n\u00a0*\u00a0MaxQueue*\u00a0obj\u00a0=\u00a0new\u00a0MaxQueue();\n\u00a0*\u00a0int\u00a0param_1\u00a0=\u00a0obj->max_value();\n\u00a0*\u00a0obj->push_back(value);\n\u00a0*\u00a0int\u00a0param_3\u00a0=\u00a0obj->pop_front();\n\u00a0*\/<\/pre>\n\n\n\n
                    \n\n\n
                    \u5251\u6307 Offer 61. \u6251\u514b\u724c\u4e2d\u7684\u987a\u5b50<\/span><\/h1>\n
                    \u4ece\u6251\u514b\u724c\u4e2d\u968f\u673a\u62bd5\u5f20\u724c\uff0c\u5224\u65ad\u662f\u4e0d\u662f\u4e00\u4e2a\u987a\u5b50\uff0c\u5373\u8fd95\u5f20\u724c\u662f\u4e0d\u662f\u8fde\u7eed\u7684\u30022\uff5e10\u4e3a\u6570\u5b57\u672c\u8eab\uff0cA\u4e3a1\uff0cJ\u4e3a11\uff0cQ\u4e3a12\uff0cK\u4e3a13\uff0c\u800c\u5927\u3001\u5c0f\u738b\u4e3a 0 \uff0c\u53ef\u4ee5\u770b\u6210\u4efb\u610f\u6570\u5b57\u3002A \u4e0d\u80fd\u89c6\u4e3a 14\u3002<\/span><\/p>\n\n\n
                    \"\"<\/div><\/figure>\n\n\n
                    \u8fd9\u9053\u9898\u4e2d\u7684\u201c\u987a\u5b50\u201d\uff0c\u53ea\u8981\u6570\u5b57\u80fd\u8fde\u8d77\u6765\u5c31\u884c\u3002\u6570\u7ec4\u4e2d\u76840\uff0c\u5373\u5927\u738b\u5c0f\u738b\u662f\u4e07\u80fd\u724c\uff0c\u80fd\u53d8\u6210\u4efb\u610f\u6570\u5b57\u6765\u7ec4\u6210\u987a\u5b50\u3002<\/span><\/p>\n
                    \u601d\u8def\uff1a\u5148\u4e0d\u8003\u8651\u6570\u5b570\uff08\u5927\u5c0f\u738b\uff09\uff0c\u82e5\u80fd\u7ec4\u6210\u987a\u5b50\uff0c\u5219\u6700\u5927\u6570\u51cf\u6700\u5c0f\u6570\u7684\u7ed3\u679c\u5c0f\u4e8e5\u3002<\/span>
                    \u90a3\u4e48\u6211\u4eec\u8981\u627e\u5230\u9664\u4e860\u4ee5\u5916\u7684\u6700\u5c0f\u6570\u548c\u6700\u5927\u6570\uff1a\u5148\u6392\u5e8f\u3002<\/span>
                    \u7279\u522b\u7684\uff1a\u5982\u679c\u6570\u7ec4\u4e2d\u6709\u91cd\u590d\u7684\u6570\uff080\u9664\u5916\uff09\uff0c\u5219\u4e00\u5b9a\u4e0d\u4f1a\u662f\u987a\u5b50\u3002<\/span><\/p>\n\n\n
                    class\u00a0Solution\u00a0{\npublic:\n\u00a0\u00a0\u00a0\u00a0bool\u00a0isStraight(vector<int>&\u00a0nums)\u00a0\n\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0sort(nums.begin(),nums.end());\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int\u00a0min=0,max=4;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(int\u00a0i=0;i<nums.size();++i)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums[i]\u00a0==\u00a00)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0min++;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u9664\u5927\u5c0f\u738b\u5916\u6709\u91cd\u590d\u724c\u65f6\uff0c\u6ca1\u6709\u987a\u5b50\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else\u00a0if(i\u00a0>\u00a00\u00a0&&\u00a0nums[i]\u00a0==\u00a0nums[i-1])\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0false;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u5982\u679c\u6700\u5927\u503c\u51cf\u6700\u5c0f\u503c\u5c0f\u4e8e5\uff0c\u5219\u6709\u987a\u5b50\uff0c\u5426\u5219\u6ca1\u6709\u987a\u5b50\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(nums[max]\u00a0-\u00a0nums[min]<5)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0true;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0false;\n\u00a0\u00a0\u00a0\u00a0}\n};<\/pre>\n\n\n\n
                    \n","protected":false},"excerpt":{"rendered":"
                    \u9762\u8bd5\u989853 – I. \u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u67e5\u627e\u6570\u5b57 I \u7edf\u8ba1\u4e00\u4e2a\u6570\u5b57\u5728\u6392\u5e8f\u6570\u7ec4\u4e2d\u51fa\u73b0\u7684\u6b21\u6570\u3002 \u601d\u8def\uff1a\u5148\u7528\u4e8c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1121","post","type-post","status-publish","format-standard","hentry","category-leetcode"],"_links":{"self":[{"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/posts\/1121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/comments?post=1121"}],"version-history":[{"count":19,"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/posts\/1121\/revisions"}],"predecessor-version":[{"id":1305,"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/posts\/1121\/revisions\/1305"}],"wp:attachment":[{"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/media?parent=1121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/categories?post=1121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/summid.icu\/index.php\/wp-json\/wp\/v2\/tags?post=1121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}