moyangxian

题意：跟题目一样，求和为k的连续区间。题记：计算前缀和，然后枚举求出答案。#include<iostream>#include<cstring>#include<algorithm>#include<cstdio>using namespace std;typedef long long ll;const int N=1e4+10;//int num[10]={6,2,5,5,4,5,6,3,7,6};ll a[N];int main(

题意：给一些通话区间，求在一个给定区间内至少需要多少个接线员（即求两条线段有没有交集）题记：略。#include<iostream>#include<cstring>#include<algorithm>#include<vector>using namespace std;typedef long long ll;const int...

题目链接题记：略。#include<iostream>using namespace std;int main(){ int n; while(cin>>n&&n){ for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ ...