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  1. #include <iostream>
  2. using namespace std;
  3. int N, a[15];
  4. bool used[15]={};
  5.  
  6. void solve(int d) {
  7.     if (d > N) {
  8.         for (int i = 1; i <= N; i++) {
  9.             cout << a[i] << " ";
  10.         }
  11.         cout << "\n";
  12.         return;
  13.     }
  14.     for (int i = 1; i <= N; i++) {
  15.         if (used[i]==1) continue;
  16.         used[i] = true;
  17.         a[d] = i;
  18.         solve(d + 1);
  19.         used[i] = false;
  20.     }
  21. }
  22.  
  23. int main() {
  24.     cin >> N;
  25.     solve(1);
  26.     return 0;
  27. }
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin
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3
stdout
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1 2 3 
1 3 2 
2 1 3 
2 3 1 
3 1 2 
3 2 1
https://ideone.com/u980TQ
language:
C++14 (gcc 8.3)
created:
4 days ago
visibility:
public

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