Boring Counting Time Limit: 3000ms Memory limit: 65536K 有疑问?点这里^_^ 题目描述 In this problem you are given a number sequence P consisting of N integer and Pi is the ith element in the
传送门 题意 分析 首先可以确定这个问题是单调的,也就是说我们如果确定了一最大值,那么存在一个 m i d mid mid,最小值大于 m i d mid mid时不合法,小于 m i d mid mid的时候合法 所以,我们可以用双指针求左右边界,线段树去 c h e c k check check是否合法 代码 #pragma GCC optimize(3)#include <
There are an equation. ∑0≤k1,k2,⋯km≤n∏1⩽j<m(kj+1kj)%1000000007=? We define that (kj+1kj)=kj+1!kj!(kj+1−kj)! . And (kj+1kj)=0 while kj+1<kj . You have to get the answer for each n
Google Sheet是在线的云端应用,等有网再说吧。 INSTALLING AND SETTING UP EZSHEETS $ pip3 install --user ezsheets 使用ezsheet需要激活Google Sheets 和 Google Drive API。详见: https://console.developers.google.com/apis/library/