https://discuss.leetcode.com/topic/76472/clean-3ms-c-dp-solution-with-detailed-explanation https://discuss.leetcode.com/topic/76327/c-dp-solution-with-explanation boolPredictTheWinner(vector<int>&nums) {intn =nums.size(); vector<vector<int>>dp(n, vector<int>(n)); vector<int>sum(n); ...
Github 同步地址: https://github.com/grandyang/leetcode/issues/486 类似题目: Guess Number Higher or Lower II 参考资料: https://leetcode.com/problems/predict-the-winner/ https://leetcode.com/problems/predict-the-winner/discuss/96832/C%2B%2B-DP-solution-with-explanation https://leetcode.com/p...
// Solution 1: Trivial. 代码1 // Code 1 486 Predict the Winner // #486 预测赢家 描述:给定一个数组,每个元素表示一个分数。俩人轮流,每次从左端或右端拿走一个分数,如此直到拿完。分高的人赢。问先手是否必胜? // #486 Description: Predict the Winner | LeetCode OJ 解法1:不要一看数据量很小,...
Leetcode class Solution { public boolean stoneGameIX(int[] stones) { // int[] c = {0, 0, 0}; int[] c = new int[3]; for (int i : stones) c[i % 3]++; if (c[0] % 2 == 0) return c[1] > 0 && c[2] > 0; // A 先取最少的一种 return Math.abs(c[1] - c...
2. AcWing 4862. 浇花(√) 差分 一维差分:给a数组中的[ l, r]区间中的每一个数都加上c,只需对差分数组b做 b[l] + = c, b[r+1] - = c。时间复杂度为O(1), 大大提高了效率。. int b[N]; int main(){ cin >> n >> m; while(m--){ int l,r; cin >> l >> r; b[l]++...
如果AB*AC>0,则三角形ABC是逆时针的 如果AB*AC<0,则三角形ABC是顺时针的 因为不知道顶点是顺时针输入,还是逆时针输入,所以要记录符号,后面点叉乘如果一样就是凸多边形。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 classSolution:defisConvex(self,points:List[List[int]])->bool:defcal_cross_pr...
classSolution{publicStringlicenseKeyFormatting(StringS,intK){char[]inp=S.toCharArray();//i1intL=inp.length,LL=2*L;char[]cal=newchar[LL];//i2inti1=L-1,i2=2*L-1,counter=K;charc;while(i1>=0){c=inp[i1--];if(c!='-'){if(counter==0){cal[i2--]='-';counter=K;}if(c>...
classSolution{public:vector<int>t;vector<vector<int>>ans;voiddfs(bool choosePre,int cur,vector<int>&nums){if(cur==nums.size()){ans.push_back(t);return;}dfs(false,cur+1,nums);if(!choosePre&&cur>0&&nums[cur-1]==nums[cur]){return;// 没有选择上一个元素 & 不是第一个元素 & 上...
注1:每题2个解法 = 【Minimum Runtime Solution】 + 【Minimum Memory Usage Solution】注2:Mac:【command + F】 / Windows:【Ctrl + F】 → 输入题号或题名快速定位。逆序No.【Swift】 && 题目【Title】C++JavaPython3Difficulty 1125 最小的必要团队 - Smallest Sufficient Team C++ Java Python3 Hard ...
486problems solved C 14problems solved Python 10problems solved Show more Contest Rating 1,551 Global Ranking 208,204/678,221 Attended 12 1,637 20182020 Top 31.2% 488/3496 Solved 44.27% Acceptance Beats 94.42% Beats 96.57% Beats 95.36% ...