C语言考试练习题_排列(C++暴力)

解题思路:

注意事项:

参考代码:

#include <iostream>

#include <bits/stdc++.h>

using namespace std;

int main() {

int a[4],m, j, i;

cin >> a[1] >> a[2] >> a[3] >> a[4];

for (int x = 4; x >= 1; x--) {

for (int l = 0; m = l % 4 + 1, j = (l / 4) % 4 + 1, i = l / 4 / 4 + 1, l < 4 * 4 * 4; l++) {

if ((i != x) && (j != x) && (m != x) && (i != j) && (i != m) && (j != m))

cout << a[i] << " " << a[j] << " " << a[m] << endl;

}

}

}