17585

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
17585	lulu	求和	C++	Accepted	0 MS	244 KB	161	2023-05-14 17:33:18

#include<bits/stdc++.h> using namespace std; int main() { int N; cin>>N; int cnt=0; for(int i=1;i<=N;i++){ cnt+=i; } cout<<cnt; return 0; }