fork download
copy 
  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4. int n;
  5. int k;
  6.  
  7. void rec(int len, vector<int>& ans, int last) {
  8. 	if (len == k) {
  9. 		for (int i = 0; i < ans.size(); ++i) {
  10. 			cout << ans[i] << " ";
  11. 		}
  12. 		cout << endl;
  13. 		return;
  14. 	}
  15.         for (int i = k-len; i < last; ++i) {
  16. 	        ans[len] = i;
  17. 		    rec(len + 1, ans, i);
  18.  
  19.         }
  20. }
  21.  
  22. int main() {
  23. 	cin >> n >> k;
  24. 	vector<int> ans(k);
  25. 	rec(0, ans, n+1);
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 4568KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 

	

		
	 
	
	
			

					
			
			
			
			
			
			
			
			

			
			
			
		

	
		
		

			

			                        







			
			

				

	
					
					 https://ideone.com/Ww1hJh
					
					
					
					
					

												

												
						
						

					

					
					
					

						
language:

						
C++ (gcc 8.3)

					

					

						
created:
								
						
4 years ago

					

					

						
visibility:

						

							 public																												
							
							

								
							

						

					

										
										

					
					 Share or Embed source code
					
					
					
					

						
						
						
						
						
						
						
					

					
						
	
	
	
	
					
					
					
					
					 
					
					
					
					 
					
					
					
					
					
					

					

					

					
						
					

					


	
Discover > Sphere Engine API

	
The brand new service which powers Ideone!

	
	
Discover > IDE Widget

    
Widget for compiling and running the source code in a web browser!