44173

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
44173	张予馨	求1+2+3+...	C++	Accepted	0 MS	244 KB	155	2024-03-29 15:12:04

#include<iostream> using namespace std; int main() { int sum=0; int n; cin>>n; for(int i=1;i<=n;i++){ sum+=i; } cout<<sum; return 0; }