#include<stdio.h> int main() { int a[1001]={0,0,0}; int i; int x=1,y=1; int n; for(i=3;i<=1001;i++) { if(i%2==0) { a[i]=x*y; x++; } else { a[i]=y*y; y++; } } while(scanf("%d",&n)!=EOF) { printf("%d\n",a[n]); } return 0; } |
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