classSolution{public:boolcheckPowersOfThree(int n){int s=(1<<15);vector<int>pow3(16,1);for(int i=1;i<=15;i++)pow3[i]=pow3[i-1]*3;for(int i=0;i<=s;i++){// 系数是 iint num=0;for(int j=0;j<=15;j++){if(1&(i>>j))//第 j 位系数 是 1num+=pow3[j];}if...
1718.Construct-the-Lexicographically-Largest-Valid-Sequence (H-) 1766.Tree-of-Coprimes (H-) 2014.Longest-Subsequence-Repeated-k-Times (H) 2056.Number-of-Valid-Move-Combinations-On-Chessboard (H) 2065.Maximum-Path-Quality-of-a-Graph (M) 2850.Minimum-Moves-to-Spread-Stones-Over-Grid (M) 345...
1718 1718. 构建字典序最大的可行序列 类似8皇后,回溯填格子 22 22. 括号生成 任何时刻左括号数量大于等于右括号数量, 用这个条件做回溯 89 89. 格雷编码 1. 异或处理只改变一位的问题, 2. 回溯的写法! 131 131. 分割回文串 回溯+check 模版题 386 386. 字典序排序 相当于回溯的迭代写法(或者数学角度的...
class Solution: def findNumberOfLIS(self, nums: List[int]) -> int: d, cnt = [], [] for v in nums: i = bisect(len(d), lambda i: d[i][-1] >= v) c = 1 if i > 0: k = bisect(len(d[i - 1]), lambda k: d[i - 1][k] < v) c = cnt[i - 1][-1] - cnt...
publicclassSolution {publicintremoveElement(int[] A,intelem) {inti = 0;intpointer = A.length - 1;while(i <=pointer){if(A[i] ==elem){ A[i]=A[pointer]; //无论A[pointer]是否等于elem都赋给,由于i此时并不自加,下次循环依旧判断 ...
2本文链接:https://blog.csdn.net/liujiaqi12345/article/details/883570413Leetcode JAVA 题解: https:///mJackie/leetcode4自己日常刷题经过是这样的:56拿到题目,看一眼Difficulty,然后自己思考一下解题思路。如果解不出来,就记下在哪里卡住了,难点在哪。7如果对应的题目有Solution,就看Solution,没有的话就点...
();1718String sourceString=source[0]+","+source[1];19queue.offer(sourceString);20visited.add(sourceString);2122while(!queue.isEmpty()){23String[]curBlock=queue.poll().split(",");24int curX=Integer.parseInt(curBlock[0]);25int curY=Integer.parseInt(curBlock[1]);2627if(curX==target[...
2本文链接:https://blog.csdn.net/liujiaqi12345/article/details/883570413Leetcode JAVA 题解: https://github.com/mJackie/leetcode4自己日常刷题经过是这样的:56拿到题目,看一眼Difficulty,然后自己思考一下解题思路。如果解不出来,就记下在哪里卡住了,难点在哪。7如果对应的题目有Solution,就看Solution,没有...
class Solution { unordered_set<string> ans;//去重 int mindel = INT_MAX; public: vector<string> removeInvalidParentheses(string s) { int l = 0, r = 0, del = 0; string t; dfs(s,0,t,l,r,del); return vector<string>(ans.begin(), ans.end()); } void dfs(string& s, int idx...
leetcode / solution / CONTEST_README_EN.md CONTEST_README_EN.md 181.11 KB 一键复制 编辑 原始数据 按行查看 历史 ylb 提交于 2年前 . feat: add new lc problems LeetCode Contest Contest Rating & Badge Rating Predictor Past Contests Weekly Contest 331 Biweekly Contest 97 Weekly Contest 330 ...