STL next_permutation和prev_permutation函数

 1 #include <iostream>
 2 #include <algorithm>    /// next_permutation, sort
 3 #define MAX 100
 4 using namespace std;
 5 
 6 int main() {
 7     int myints[MAX],n;
 8     cin >> n;
 9     for (int i = 0; i < n; i++)
10     {
11         cin >> myints[i];
12     }
13     sort(myints, myints + n);
14 
15     do {
16         for (int i = 0; i < n; i++)
17         {
18             cout << myints[i] <<" ";
19         }
20         cout << endl;
21     } while (next_permutation(myints, myints + n));    ///获取下一个较大字典序排列
22     
23     system("pause");
24     return 0;
25 }