Run ID Author Problem Lang Verdict Score Time Memory Code Length Submit Time
20205 cly 螺旋方阵 C++ No Test Data 0 0 MS 0 KB 173 2021-06-05 15:31:22

Tests(0/0):

#include<iostream> #include<cstdio> using namespace std; int main() { int i,n,ans=0; cin>>n; n=n-1; for(i=n;i>0;i-=2)ans+=i; cout<<-ans*2<<endl; return 0; }