poj1455

简单题

View Code

#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);

    }

}