Run ID Author Problem Lang Verdict Score Time Memory Code Length Submit Time
19965 张熙媛 螺旋方阵 C++ No Test Data 0 0 MS 0 KB 162 2021-05-27 19:52:55

Tests(0/0):

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