fork download 
  1. #include <iostream>
  2. #include <vector>
  3. #include <unordered_map>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	int n, qSize;
  8. 	cin>>n>>qSize;
  9. 	vector<int> q(qSize);
  10. 	vector<int> arr(n);
  11. 	for(int i=0;i<qSize;i++)
  12. 		cin>>q[i];
  13. 	for(int i=0;i<n;i++)
  14. 		cin>>arr[i];
  15. 	unordered_map<int, int> map;
  16. 	for(int i=0;i<n;i++)
  17. 		map[arr[i]]++;
  18. 	for(int i=0;i<qSize;i++){
  19. 		cout<<map[q[i]]<<" ";
  20. 	}
  21. 	return 0;
  22. }
  23.  
Success #stdin #stdout 0s 5316KB
comments (?)
stdin 
4 4
10 20 30 40
10 10 10 10
stdout 
4 0 0 0
https://ideone.com/PcmFTK
language:
C++ (gcc 8.3)
created:
3 hours 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!