85008

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
85008	sh25_ganzy	求和	C++	Accepted	1 MS	240 KB	152	2026-03-05 20:43:05

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