83388

Run ID	Author	Problem	Lang	Verdict	Time	Memory	Code Length	Submit Time
83388	sh25_shengmy	求和	C++	Accepted	0 MS	248 KB	170	2026-01-25 20:03:51

#include<bits/stdc++.h> using namespace std; int main(){ int n,s=0; cin>>n; for(int i=1;i<=n;i+=2){ s+=i; } cout<<s; return 0; }