fork download 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. int main() {
  4. 	priority_queue<pair <int, string>, vector< pair <int, string> >, greater< pair <int, string> > > pq;
  5. 	int n, k;
  6. 	cin >> n >> k;
  7. 	map<string, int> m;
  8. 	for(int i = 0; i < n; i++){
  9. 		//int x;
  10. 		string x;
  11. 		cin >> x;
  12. 		if(m.find(x) != m.end()){
  13. 			m[x] = m[x] + 1;
  14. 		}
  15. 		else{
  16. 			m[x] = 1;
  17. 		}
  18. 	}
  19. 	int i = 0;
  20. 	for(auto it = m.begin(); it != m.end(); it++){
  21. 		string s = it -> first;
  22. 		int x = it -> second;
  23. 		if(i < k){
  24. 			pq.push(make_pair(x, s));
  25. 		}
  26. 		else{
  27. 			pair <int, string> p = pq.top();
  28. 			pq.pop();
  29. 			int x1 = p.first;
  30. 			string s1 = p.second;
  31. 			if(x1 > x){
  32. 				x = x1;
  33. 				s = s1;
  34. 			}
  35. 			else if(x1 == x and s.compare(s1) > 0){
  36. 				x = x1;
  37. 				s = s1;
  38. 			}
  39. 			pq.push(make_pair(x, s));
  40. 		}
  41. 		i++;
  42. 	}
  43. 	stack<string> s;
  44. 	while(!pq.empty()){
  45. 		pair <int, string> p = pq.top();
  46. 		pq.pop();
  47. 		int x1 = p.first;
  48. 		string s1 = p.second;
  49. 		s.push(s1);
  50. 		//cout << s1 << " ";
  51. 	}
  52. 	while(!s.empty()){
  53. 		string s1 = s.top();
  54. 		cout << s1 << " ";
  55. 		s.pop();
  56. 	}
  57. 	return 0;
  58. }
Success #stdin #stdout 0s 4404KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/xaBZKg
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
secret

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!