43026

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
43026	Songgr	求和	C++	Accepted	0 MS	236 KB	155	2024-03-05 21:20:52

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