29720

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
29720	惠子铭	分苹果	C++	Accepted	0 MS	248 KB	158	2023-11-02 18:45:40

#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; }