hdu_1027(好吧。。。牛。。。next_permutation也可以水过)

 #include<cstdio>
 #include<cstring>
 #include<algorithm>
 using namespace std;
 const int N = ;
 int tm[N];
 int main()
 {
     int n, m;
     while (~scanf("%d%d", &n, &m))
     {
         for (int i = ; i <= n; i++) {
             tm[i] = i;
         }
         m--;
         while (m--) {
             next_permutation(tm + , tm + n + );
         }
         for (int i = ; i < n; i++)
             printf("%d ", tm[i]);
         printf("%d\n", tm[n]);
     }
 }