前缀和
一维
求[l,r]的和,s[r] - s[l - 1]
下标从1开始,否则求[1,r]的和,需要特判
public class Main {public static void main(String[] args) {Scanner in new Scanner(System.in);int n in.nextInt();int m in.nextInt();int[] a …
一.简单命令行
stat FPS
stat unit //增加GPU渲染时间和变量
stat unitgraph //追加了图表显示
二.查看GPU的消耗。调试GPU渲染用的高级命令
可以记录这一刻各个部分的占用情况,只能看当前的
1.在编辑器下,ctrlShift, 。
2.输入命令行,pr…
A. Dora’s Set
Problem Statement
Dora has a set s s s containing integers. In the beginning, she will put all integers in [ l , r ] [l, r] [l,r] into the set s s s. That is, an integer x x x is initially contained in the set if and only if l ≤ x ≤…