求实现方法，小问题不小视！

三五行代码就可以搞定。你去查下 next_permutation() 这个函数怎么用吧。

#include <iostream>
#include <algorithm>
using namespace std;

int main(int argc, char* argv[])
{
    int a[5] = {1, 2, 3,4,5};
    char b[5] = {'A', 'B', 'C','D','E'};
int count = 1;
    sort(b, b + 5);
    do
    {
        cout << count << "  " << a[0] << "->" << b[0] << " ";
        cout << "  " << a[1] << "->" << b[1] << " ";
        cout << "  " << a[2] << "->" << b[2] << "  ";
        cout << "  " << a[3] << "->" << b[3] << "  ";
        cout << "  " << a[4] << "->" << b[4] << endl;
        count++;
    }
    while(next_permutation(b, b + 5));//注意这个函数的用法：
    return 0;