poj1455

简单题

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
using namespace std;

int main()
{
    int t;
    scanf("%d", &t);
    while (t--)
    {
        int n;
        scanf("%d", &n);
        int ans = (1 + n / 2 - 1) * (n / 2 - 1) / 2 * 2;
        if (n & 1)
            ans += n / 2;
        printf("%d\n", ans);
    }
}