差分是前缀和的逆运算,对于一个数组a,其差分数组b的每一项都是a [ i ]和前一项a [ i − 1 ]的差。
注意:差分数组和原数组必须分开存放!!!!
#include <iostream>
using namespace std;t…
For instance - lets say youre a writer.You have a bunch of tasks on your plate for the day, but all of a sudden you get a really good idea for an essay. You should probably start writing now or youll lose your train of thought.What should you do? 举例来说…
工具:用的是uniapp开发 技术栈:vue、nide..js、云开发 用时:20工作天 软件:Hb、微信开发者工具
<?php
namespace app\api\controller;
use app\common\controller\Api; /** * 首页接口 */ class Index extends Api { …