滑动窗口
滑动窗口相关问题和思路
闫氏DP分析法
记录动态规划的相关习题
Math
2834. 找出美丽数组的最小和
1234567891011121314class Solution { static final int MOD = (int)1e9 + 7; public int minimumPossibleSum(int n, int target) { int m = target / 2; if (n <= m) { return (int)(((long)1 + n) * n / 2 % MOD); } else { long firstPart = (((long)(1 + m) * m) / 2 % MOD); long secondPart = (((((long) target + target + (n - m) - 1) * (n - m)) / 2) % MOD); // System.out.println(firstPart + " " + secondPart); r ...
Blind-Sheet
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