c++ 什么鬼都有。。next_permutation

wZt — Sun, 31 May 2009 13:28:00 GMT

#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
    vector<int> a;

    a.push_back(1);
    a.push_back(2);
    a.push_back(3);
    a.push_back(4);
    while (next_permutation(a.begin(), a.end()))
    {
        for (int i = 0; i < 4; i++)
        {
            cout << a[i] << " ";
        }
        cout << endl;
    }
}

#include <iostream>
#include <cmath>
#include <vector>
#include <algorithm>
using namespace std;
int main()
{
    int a[] =
    { 1, 2, 3, 4, 5, 6 };
    do
    {
        for (int i = 0; i < 6; i++)
        {
            cout << a[i] << " ";
        }
        cout << endl;
    } while (next_permutation(a, a + 6));
}

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c++ 什么鬼都有。。next_permutation