24点三
穷举法
#include<iostream>
using namespace std;
int main()
{
int t, i, j, a, b, c, d, e;
cin >> t;
int card[5];
int find = 0;
for (i = 0; i < t; i++)
{
for (j = 0; j < 5; j++)
cin >> card[j];
for (a = -1; a <= 1; a++)
for (b = -1; b <= 1; b++)
for (c = -1; c <= 1; c++)
for (d = -1; d <= 1; d++)
for (e = -1; e <= 1; e++)
if (a*card[0]