56270

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
56270	zhangweiran	求和	C++	Accepted	0 MS	248 KB	153	2024-11-09 22:47:19

#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; }