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/* * @lc app=leetcode.cn id=100 lang=cpp * * [100] 相åŒçš„æ ‘ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), left(nullpt...
/* * @lc app=leetcode.cn id=1003 lang=cpp * * [1003] 检查替æ¢åŽçš„è¯æ˜¯å¦æœ‰æ•ˆ */ // @lc code=start class Solution { public: bool isValid(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=101 lang=cpp * * [101] å¯¹ç§°äºŒå‰æ ‘ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), left(nul...
/* * @lc app=leetcode.cn id=1019 lang=cpp * * [1019] 链表中的下一个更大节点 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: int stk[10005],top=...
/* * @lc app=leetcode.cn id=1019 lang=cpp * * [1019] 链表中的下一个更大节点 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: vector<int> nextLar...
/* * @lc app=leetcode.cn id=102 lang=cpp * * [102] äºŒå‰æ ‘的层åºé历 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), le...
/* * @lc app=leetcode.cn id=1023 lang=cpp * * [1023] 驼峰å¼åŒ¹é… */ // @lc code=start class Solution { public: vector<bool> camelMatch(vector<string>& queries, string pattern) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1032 lang=cpp * * [1032] å­—ç¬¦æµ */ #include <iostream> #include <vector> #include <queue> #include <set> #include <algorithm> using namespace std; // @lc code=start class StreamChecker { struct Node { bool isEnd = false; Node *next[26]; } *root; int ar[200...
/* * @lc app=leetcode.cn id=104 lang=cpp * * [104] äºŒå‰æ ‘的最大深度 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x),...
/* * @lc app=leetcode.cn id=1046 lang=cpp * * [1046] 最åŽä¸€å—石头的é‡é‡ */ #include <queue> using namespace std; // @lc code=start class Solution { public: int lastStoneWeight(vector<int>& stones) { priority_queue<int> q; for(auto v: stones){ q.emplace(v); } whi...
/* * @lc app=leetcode.cn id=1054 lang=cpp * * [1054] è·ç¦»ç›¸ç­‰çš„æ¡å½¢ç  */ // @lc code=start class Solution { public: vector<int> rearrangeBarcodes(vector<int>& barcodes) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=108 lang=cpp * * [108] å°†æœ‰åºæ•°ç»„转æ¢ä¸ºäºŒå‰æœç´¢æ ‘ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int ...
/* * @lc app=leetcode.cn id=109 lang=cpp * * [109] 有åºé“¾è¡¨è½¬æ¢äºŒå‰æœç´¢æ ‘ */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : val(x), next(nullptr) {} * ListNode(...
/* * @lc app=leetcode.cn id=1096 lang=cpp * * [1096] 花括å·å±•å¼€ II */ // @lc code=start class Solution { public: vector<string> braceExpansionII(string expression) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=110 lang=cpp * * [110] å¹³è¡¡äºŒå‰æ ‘ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), left(nul...
/* * @lc app=leetcode.cn id=1106 lang=cpp * * [1106] è§£æžå¸ƒå°”è¡¨è¾¾å¼ */ // @lc code=start class Solution { public: bool parseBoolExpr(string expression) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=111 lang=cpp * * [111] äºŒå‰æ ‘çš„æœ€å°æ·±åº¦ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), ...
/* * @lc app=leetcode.cn id=112 lang=cpp * 1 * 2 null * 3 * [112] 路径总和 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : ...
/* * @lc app=leetcode.cn id=1124 lang=cpp * * [1124] 表现良好的最长时间段 */ // @lc code=start class Solution { public: int longestWPI(vector<int>& hours) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=113 lang=cpp * * [113] 路径总和 II */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), left(nu...
/* * @lc app=leetcode.cn id=1130 lang=cpp * * [1130] å¶å€¼çš„æœ€å°ä»£ä»·ç”Ÿæˆæ ‘ */ // @lc code=start class Solution { public: int mctFromLeafValues(vector<int>& arr) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1137 lang=cpp * * [1137] 第 N 个泰波那契数 */ // @lc code=start class Solution { public: int tribonacci(int n) { int f[n+10]; f[0] = 0; f[1] = 1; f[2] = 1; for(int i=3; i<=n; i++){ f[i] = f[i-1]+f[i-2]+f[i-3]; } ...
/* * @lc app=leetcode.cn id=114 lang=cpp * * [114] äºŒå‰æ ‘展开为链表 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x),...
/* * @lc app=leetcode.cn id=1145 lang=cpp * * [1145] äºŒå‰æ ‘ç€è‰²æ¸¸æˆ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Solution { public: ...
/* * @lc app=leetcode.cn id=1155 lang=cpp * * [1155] 掷骰å­çš„Nç§æ–¹æ³• */ // @lc code=start class Solution { public: int numRollsToTarget(int d, int f, int target) { int mod = 1000000007; int dp[31][1001]; memset(dp, 0, sizeof(dp)); // 边界起点åˆå§‹åŒ– // i表示...
/* * @lc app=leetcode.cn id=1157 lang=cpp * * [1157] å­æ•°ç»„中å ç»å¤§å¤šæ•°çš„元素 */ // @lc code=start class MajorityChecker { public: MajorityChecker(vector<int>& arr) { } int query(int left, int right, int threshold) { } }; /** * Your MajorityChecker object will be instantiated and ...
/* * @lc app=leetcode.cn id=116 lang=cpp * * [116] å¡«å……æ¯ä¸ªèŠ‚ç‚¹çš„ä¸‹ä¸€ä¸ªå³ä¾§èŠ‚ç‚¹æŒ‡é’ˆ */ // @lc code=start /* // Definition for a Node. class Node { public: int val; Node* left; Node* right; Node* next; Node() : val(0), left(NULL), right(NULL), next(NULL) {} Node(int _val) : v...
/* * @lc app=leetcode.cn id=1160 lang=cpp * * [1160] 拼写å•è¯ */ // @lc code=start class Solution { public: int countCharacters(vector<string>& words, string chars) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1161 lang=cpp * * [1161] 最大层内元素和 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x),...
/* * @lc app=leetcode.cn id=1163 lang=cpp * * [1163] æŒ‰å­—å…¸åºæŽ’åœ¨æœ€åŽçš„å­ä¸² */ // @lc code=start class Solution { public: string lastSubstring(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=117 lang=cpp * * [117] å¡«å……æ¯ä¸ªèŠ‚ç‚¹çš„ä¸‹ä¸€ä¸ªå³ä¾§èŠ‚ç‚¹æŒ‡é’ˆ II */ // @lc code=start /* // Definition for a Node. class Node { public: int val; Node* left; Node* right; Node* next; Node() : val(0), left(NULL), right(NULL), next(NULL) {} Node(int _val) ...
/* * @lc app=leetcode.cn id=1171 lang=cpp * * [1171] 从链表中删去总和值为零的连续节点 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: //è¿...
/* * @lc app=leetcode.cn id=118 lang=cpp * * [118] æ¨è¾‰ä¸‰è§’ */ #include <vector> using namespace std; // @lc code=start class Solution { public: vector<vector<int>> generate(int n) { vector<vector<int>> f(n, vector<int>(0, 0)); f[0] = {1}; for(int i=1; i<n; i++){ for(in...
/* * @lc app=leetcode.cn id=1190 lang=cpp * * [1190] å转æ¯å¯¹æ‹¬å·é—´çš„å­ä¸² */ // @lc code=start class Solution { public: string reverseParentheses(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=12 lang=cpp * * [12] 整数转罗马数字 */ // @lc code=start class Solution { public: string intToRoman(int num) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=120 lang=cpp * * [120] 三角形最å°è·¯å¾„å’Œ */ #include <vector> using namespace std; // @lc code=start class Solution { public: int minimumTotal(vector<vector<int>>& t) { int m = t.size(); if(m == 1){ return t[0][0]; } int f[m][m]; ...
/* * @lc app=leetcode.cn id=1209 lang=cpp * * [1209] 删除字符串中的所有相邻é‡å¤é¡¹ II */ // @lc code=start class Solution { public: string removeDuplicates(string s, int k) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=121 lang=cpp * * [121] ä¹°å–股票的最佳时机 */ // @lc code=start class Solution { public: int maxProfit(vector<int>& prices) { int n = prices.size(); int f[n]; f[0] = 0; // 记录一个当å‰çš„æœ€å°å€¼ int mi = prices[0]; for(in...
/* * @lc app=leetcode.cn id=122 lang=cpp * * [122] ä¹°å–股票的最佳时机 II */ // @lc code=start class Solution { public: int maxProfit(vector<int>& prices) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1232 lang=cpp * * [1232] 缀点æˆçº¿ */ // @lc code=start class Solution { public: bool checkStraightLine(vector<vector<int>>& coordinates) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1249 lang=cpp * * [1249] ç§»é™¤æ— æ•ˆçš„æ‹¬å· */ // @lc code=start class Solution { public: string minRemoveToMakeValid(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=125 lang=cpp * * [125] 验è¯å›žæ–‡ä¸² */ // @lc code=start class Solution { public: bool isPalindrome(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=126 lang=cpp * * [126] å•è¯æŽ¥é¾™ II */ // @lc code=start class Solution { public: vector<vector<string>> findLadders(string beginWord, string endWord, vector<string>& wordList) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1261 lang=cpp * * [1261] åœ¨å—æ±¡æŸ“çš„äºŒå‰æ ‘中查找元素 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class F...
/* * @lc app=leetcode.cn id=1266 lang=cpp * * [1266] è®¿é—®æ‰€æœ‰ç‚¹çš„æœ€å°æ—¶é—´ */ // @lc code=start class Solution { public: int minTimeToVisitAllPoints(vector<vector<int>>& points) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1288 lang=cpp * * [1288] 删除被覆盖区间 */ // @lc code=start class Solution { public: int removeCoveredIntervals(vector<vector<int>>& intervals) { // 从左到å³ï¼Œå·¦è¾¹ç›¸ç­‰å–较大值 sort(begin(intervals), end(intervals), [](const vector<int> &o1, const v...
/* * @lc app=leetcode.cn id=1289 lang=cpp * * [1289] 下é™è·¯å¾„最å°å’Œ II */ #include <vector> using namespace std; // @lc code=start class Solution { public: int minFallingPathSum(vector<vector<int>>& g) { int n=g.size(); int f[n][n]; for(int j=0; j<n; j++){ f[...
/* * @lc app=leetcode.cn id=129 lang=cpp * * [129] 求根到å¶å­èŠ‚ç‚¹æ•°å­—ä¹‹å’Œ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) :...
/* * @lc app=leetcode.cn id=1290 lang=cpp * * [1290] 二进制链表转整数 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: int getDecimalValue(ListNode...
/* * @lc app=leetcode.cn id=13 lang=cpp * * [13] 罗马数字转整数 */ // @lc code=start class Solution { public: int romanToInt(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=130 lang=cpp * * [130] 被围绕的区域 */ // @lc code=start class Solution { public: void solve(vector<vector<char>>& board) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1301 lang=cpp * E 1 1 * X X X * 1 1 S * * ["E11","XXX","11S"] * [1301] 最大得分的路径数目 */ #include <vector> #include <string> #include <algorithm> using namespace std; // @lc code=start class Solution { public: vector<int> pathsWithMaxScore(vector<string>& board) {...
/* * @lc app=leetcode.cn id=1302 lang=cpp * * [1302] 层数最深å¶å­èŠ‚ç‚¹çš„å’Œ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Solution {...
/* * @lc app=leetcode.cn id=1305 lang=cpp * * [1305] ä¸¤æ£µäºŒå‰æœç´¢æ ‘中的所有元素 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class S...
/* * @lc app=leetcode.cn id=1315 lang=cpp * * [1315] ç¥–çˆ¶èŠ‚ç‚¹å€¼ä¸ºå¶æ•°çš„节点和 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Sol...
/* * @lc app=leetcode.cn id=1316 lang=cpp * * [1316] ä¸åŒçš„循环å­å­—符串 */ // @lc code=start class Solution { public: int distinctEchoSubstrings(string text) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1353 lang=cpp * * [1353] 最多å¯ä»¥å‚加的会议数目 */ // @lc code=start class Solution { public: int maxEvents(vector<vector<int>>& events) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1367 lang=cpp * * [1367] äºŒå‰æ ‘中的列表 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : val(x), next(nullptr) {} * ListNode(int x, ...
/* * @lc app=leetcode.cn id=1372 lang=cpp * * [1372] äºŒå‰æ ‘中的最长交错路径 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class Soluti...
/* * @lc app=leetcode.cn id=1379 lang=cpp * * [1379] æ‰¾å‡ºå…‹éš†äºŒå‰æ ‘中的相åŒèŠ‚ç‚¹ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class ...
/* * @lc app=leetcode.cn id=138 lang=cpp * * [138] å¤åˆ¶å¸¦éšæœºæŒ‡é’ˆçš„é“¾è¡¨ */ // @lc code=start /* // Definition for a Node. class Node { public: int val; Node* next; Node* random; Node(int _val) { val = _val; next = NULL; random = NULL; } }; */ class Solution...
/* * @lc app=leetcode.cn id=1381 lang=cpp * * [1381] 设计一个支æŒå¢žé‡æ“作的栈 */ // @lc code=start class CustomStack { public: CustomStack(int maxSize) { } void push(int x) { } int pop() { } void increment(int k, int val) { ...
/* * @lc app=leetcode.cn id=1392 lang=cpp * * [1392] 最长快ä¹å‰ç¼€ */ // @lc code=start class Solution { public: string longestPrefix(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=14 lang=cpp * * [14] 最长公共å‰ç¼€ */ // @lc code=start class Solution { public: string longestCommonPrefix(vector<string>& strs) { for(auto s: strs){ } } }; // @lc code=end
/* * @lc app=leetcode.cn id=1401 lang=cpp * * [1401] åœ†å’ŒçŸ©å½¢æ˜¯å¦æœ‰é‡å  */ // @lc code=start class Solution { public: bool checkOverlap(int radius, int x_center, int y_center, int x1, int y1, int x2, int y2) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=141 lang=cpp * * [141] 环形链表 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ class Solution { public: bool hasCycle(ListNode *head) { if...
/* * @lc app=leetcode.cn id=1410 lang=cpp * * [1410] HTML 实体解æžå™¨ */ // @lc code=start class Solution { public: string entityParser(string text) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=142 lang=cpp * * [142] 环形链表 II */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : val(x), next(nullptr) {} * ListNode(int x, ListNod...
/* * @lc app=leetcode.cn id=143 lang=cpp * * [143] é‡æŽ’é“¾è¡¨ */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : val(x), next(nullptr) {} * ListNode(int x, ListNode *n...
/* * @lc app=leetcode.cn id=1439 lang=cpp * * [1439] 有åºçŸ©é˜µä¸­çš„第 k ä¸ªæœ€å°æ•°ç»„å’Œ */ // @lc code=start class Solution { public: int kthSmallest(vector<vector<int>>& mat, int k) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=144 lang=cpp * * [144] äºŒå‰æ ‘çš„å‰åºé历 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), lef...
/* * @lc app=leetcode.cn id=1443 lang=cpp * * [1443] 收集树上所有苹果的最少时间 */ // @lc code=start class Solution { public: int minTime(int n, vector<vector<int>>& edges, vector<bool>& hasApple) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1448 lang=cpp * * [1448] ç»Ÿè®¡äºŒå‰æ ‘中好节点的数目 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(in...
/* * @lc app=leetcode.cn id=1449 lang=cpp * * [1449] æ•°ä½æˆæœ¬å’Œä¸ºç›®æ ‡å€¼çš„æœ€å¤§æ•°å­— */ // @lc code=start class Solution { public: string largestNumber(vector<int>& cost, int target) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=145 lang=cpp * * [145] äºŒå‰æ ‘çš„åŽåºé历 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), lef...
/* * @lc app=leetcode.cn id=1453 lang=cpp * * [1453] 圆形é¶å†…çš„æœ€å¤§é£žé•–æ•°é‡ */ // @lc code=start class Solution { public: int numPoints(vector<vector<int>>& points, int r) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1457 lang=cpp * * [1457] äºŒå‰æ ‘中的伪回文路径 */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) :...
/* * @lc app=leetcode.cn id=1466 lang=cpp * * [1466] 釿–°è§„划路线 */ // @lc code=start class Solution { public: int minReorder(int n, vector<vector<int>>& connections) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=147 lang=cpp * * [147] 对链表进行æ’å…¥æŽ’åº */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : val(x), next(nullptr) {} * ListNode(int ...
/* * @lc app=leetcode.cn id=148 lang=cpp * * [148] 排åºé“¾è¡¨ */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode() : val(0), next(nullptr) {} * ListNode(int x) : val(x), next(nullptr) {} * ListNode(int x, ListNode *n...
/* * @lc app=leetcode.cn id=150 lang=cpp * * [150] é€†æ³¢å…°è¡¨è¾¾å¼æ±‚值 */ // @lc code=start class Solution { public: int evalRPN(vector<string>& tokens) { stack<int> stk; int n = tokens.size(); for (int i = 0; i < n; i++) { string& token = tokens[i]; if (isNu...
/* * @lc app=leetcode.cn id=1515 lang=cpp * * [1515] æœåŠ¡ä¸­å¿ƒçš„æœ€ä½³ä½ç½® */ // @lc code=start class Solution { public: double getMinDistSum(vector<vector<int>>& positions) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1521 lang=cpp * * [1521] 找到最接近目标值的函数值 */ // @lc code=start class Solution { public: int closestToTarget(vector<int>& arr, int target) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1526 lang=cpp * * [1526] å½¢æˆç›®æ ‡æ•°ç»„çš„å­æ•°ç»„最少增加次数 */ // @lc code=start class Solution { public: int minNumberOperations(vector<int>& target) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1530 lang=cpp * * [1530] 好å¶å­èŠ‚ç‚¹å¯¹çš„æ•°é‡ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(...
/* * @lc app=leetcode.cn id=154 lang=cpp * * [154] å¯»æ‰¾æ—‹è½¬æŽ’åºæ•°ç»„中的最å°å€¼ II */ // @lc code=start class Solution { public: int findMin(vector<int>& nums) { int low = 0; int high = nums.size() - 1; while (low < high) { int m = low + (high - low) / 2; ...
/* * @lc app=leetcode.cn id=1541 lang=cpp * * [1541] 平衡括å·å­—符串的最少æ’入次数 */ // @lc code=start class Solution { public: int minInsertions(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1542 lang=cpp * * [1542] 找出最长的超赞å­å­—符串 */ // @lc code=start class Solution { public: int longestAwesome(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1544 lang=cpp * * [1544] æ•´ç†å­—符串 */ // @lc code=start class Solution { public: string makeGood(string s) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=155 lang=cpp * * [155] æœ€å°æ ˆ */ // @lc code=start class MinStack { public: /** initialize your data structure here. */ MinStack() { } void push(int x) { } void pop() { } int top() { } int getMin() { } }; /** * You...
/* * @lc app=leetcode.cn id=1585 lang=cpp * * [1585] 检查字符串是å¦å¯ä»¥é€šè¿‡æŽ’åºå­å­—符串得到å¦ä¸€ä¸ªå­—符串 */ // @lc code=start class Solution { public: bool isTransformable(string s, string t) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=160 lang=cpp * * [160] 相交链表 */ // @lc code=start /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), next(NULL) {} * }; */ // 构造一段路程,使得两个指针相é‡çš„æ—¶å€™èµ°è¿‡çš„è·¯ç¨...
/* * @lc app=leetcode.cn id=1600 lang=cpp * * [1600] 皇ä½ç»§æ‰¿é¡ºåº */ // @lc code=start class ThroneInheritance { public: ThroneInheritance(string kingName) { } void birth(string parentName, string childName) { } void death(string name) { } vector<string> getInherit...
/* * @lc app=leetcode.cn id=1604 lang=cpp * * [1604] è­¦å‘Šä¸€å°æ—¶å†…使用相åŒå‘˜å·¥å¡å¤§äºŽç­‰äºŽä¸‰æ¬¡çš„人 */ #include <algorithm> #include <iostream> #include <queue> #include <unordered_map> #include <vector> using namespace std; // @lc code=start class Solution { public: vector<string> alertNames(ve...
/* * @lc app=leetcode.cn id=1606 lang=cpp * * [1606] æ‰¾åˆ°å¤„ç†æœ€å¤šè¯·æ±‚çš„æœåС噍 */ // @lc code=start typedef pair<int,int> pii; class Solution { public: vector<int> busiestServers(int k, vector<int>& arrival, vector<int>& load) { int n = arrival.size(); int target = 0; int maxSe...
/* * @lc app=leetcode.cn id=1609 lang=cpp * * [1609] 奇嶿 ‘ */ // @lc code=start /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode() : val(0), left(nullptr), right(nullptr) {} * TreeNode(int x) : val(x), left(nullptr...
/* * @lc app=leetcode.cn id=1610 lang=cpp * * [1610] å¯è§ç‚¹çš„æœ€å¤§æ•°ç›® */ // @lc code=start class Solution { public: int visiblePoints(vector<vector<int>>& points, int angle, vector<int>& location) { } }; // @lc code=end
/* * @lc app=leetcode.cn id=1638 lang=cpp * * [1638] 统计åªå·®ä¸€ä¸ªå­—符的å­ä¸²æ•°ç›® */ // @lc code=start class Solution { public: int countSubstrings(string s, string t) { int m = s.size(); int n = t.size(); int ans = 0; for (int i = 0; i < m; ++i) { for (int ...
/* * @lc app=leetcode.cn id=1641 lang=cpp * * [1641] 统计字典åºå…ƒéŸ³å­—符串的数目 */ // @lc code=start class Solution { public: int countVowelStrings(int n) { if (n == 0) return 0; if (n == 1) return 5; int ans[n + 1][5]; ans[1][0] = 1; ...
/* * @lc app=leetcode.cn id=1642 lang=cpp * * [1642] å¯ä»¥åˆ°è¾¾çš„æœ€è¿œå»ºç­‘ */ // @lc code=start class Solution { public: int furthestBuilding(vector<int>& heights, int bricks, int ladders) { int n = heights.size(); // 由于我们需è¦ç»´æŠ¤æœ€å¤§çš„ l ä¸ªå€¼ï¼Œå› æ­¤ä½¿ç”¨å°æ ¹å † ...