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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int N;
  5. int arr[100]={};
  6. bool used[100]={};
  7.  
  8. void solve(int d){
  9. 	if(d>N){
  10. 		for(int i=1;i<=N;i++){
  11. 			cout << arr[i] << ' ';
  12. 		}cout << '\n';
  13. 	}
  14. 	else{
  15. 		for(int i=1;i<=N;i++){
  16. 			if(used[i]==0){
  17. 				used[i]=1;
  18. 				arr[d]=i;
  19. 				solve(d+1);
  20. 				used[i]=0;
  21. 			}
  22. 		}
  23. 	}
  24. }
  25.  
  26. int main() {
  27. 	cin >> N;
  28. 	solve(1);
  29. }
Success #stdin #stdout 0.01s 5288KB
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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/vHcaR0
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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