下图参考:blog.csdn.net/cloudox_/ class Solution { public: bool PredictTheWinner(vector<int>& nums) { int n=nums.size(); vector<vector<int> > dp(n,vector<int>(n,0)); for(int i=0;i<n;i++){ dp[i][i]=nums[i]; } for(int i=n-1;i>=0;i--){ for(int j=i+1;j<n;...
AI代码解释 classSolution{public:vector<vector<int>>dirs{{-1,0},{0,1},{1,0},{0,-1}};voidcleanRoom(Robot&robot){unordered_set<string>visited;helper(robot,0,0,0,visited);}voidhelper(Robot&robot,int x,int y,int dir,unordered_set<string>&visited){robot.clean();visited.insert(to_stri...
solution解法: View Code 486. Predict the Winner 题意:给定一个数组,甲乙二人可以分别从首或者尾取一个数字,返回甲取得数字总和能否大于等于乙 我的思路:如果一方选择了两端的任意一个数,可以看成加,而另一方选择它的数对于自己来说可以看成是减。只要最后的结果不小于0,说明自己就比对手高。 我的代码: View...
AI代码解释 classSolution{public:stringdel(string board){for(int i=0;i<board.size();){int j=i;while(j<board.size()&&board[i]==board[j])j++;if(j-i>=3)returndel(board.substr(0,i)+board.substr(j));elsei=j;}returnboard;}intdfs(string board,unordered_map<char,int>&hash){board=...
486. Predict the Winner https://leetcode.com/problems/predict-the-winner/description/ View Code 二维DP,一维亦可,二维DP易于理解。两个维度坐标含义相同,填表方式是沿对角线填表,这取决于子问题的结构。子问题结构比较容易看出来,对于dp[i][j],取头剩dp[i+1][j],取尾剩dp[i][j-1],但是剩下的是对...
blog.csdn.net/weixin_44 主要思路: (1)广度优先搜索; (2)将迷宫maze的元素置为2,来标识访问过的变换方向的位置; (3)使用队列,存储各个可能变换方向的位置,并判断每个变换方向的位置是否是终点位置,若是,则返回true,否则,在没有访问过的情形下,压入到队列中; classSolution{ public: boolhasPath(vector<vect...
#1237. Find Positive Integer Solution for a Given Equation (E) 1000 #1415. The k-th Lexicographical String of All Happy Strings of Length n (M+) 1600 #1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts (M-) 1200 #1498. Number of Subsequences That Satisfy ...
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class Solution { public: int trap(vector<int>& height) { if(height.empty()) return 0; height.push_back(0); int res =0; stack<int> st;//decreasing stack for(int i = 0; i<height.size();++i){ while(!st.empty() && height[i] > height[st.top()]){ ...
示例2:输入:["Solution","pick","pick","pick","pick","pick"][[[-2,-2,-1,-1],[1,0,3,0]]],[],[],[],[],[]]输出:[null,[-1,-2],[2,0],[-2,-1],[3,0],[-2,-2]] 解题 https://blog.csdn.net/weixin_44171872/article/details/111083657 主要...