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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int ok =1;
  4. void result(int k,int x[]){
  5. 	for(int i =1; i <= k;i++){
  6. 		cout << x[i];
  7. 	}
  8. 	cout << " ";
  9. }
  10. void next(int n, int k, int x[]){
  11. 	int i = k;
  12. 	while(i > 0 && x[i] == n - k + i){
  13. 		i--;
  14. 	}
  15. 	if(i > 0){
  16. 		x[i] = x[i]+1;
  17. 		for(int j = i + 1; j <=k; j++){
  18. 			x[j] = x[j-1]+1;
  19. 		}
  20. 	}
  21. 	else {
  22. 		ok =0;
  23. 	}
  24. }
  25. int main(){
  26. 	int t;
  27. 	cin >> t;
  28. 	while(t--){
  29. 		int n, k;
  30. 		cin >> n >> k;
  31. 		int x[100];
  32. 		for(int i =1; i <= k;i++){
  33. 			x[i] = i;
  34. 		}ok =1;
  35. 		while(ok){
  36. 			result(k,x);
  37. 			next(n,k,x);
  38. 		}
  39. 		cout << endl;
  40. 	}
  41. }
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/7cyrYx
language:
C++14 (gcc 8.3)
created:
12 days ago
visibility:
public

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