16984

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
16984	wanyichen	求和	C++	Accepted	0 MS	244 KB	163	2023-05-09 19:41:38

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