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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7.  
  8. 	int n;//array ka size
  9. 	cin>>n;
  10.  
  11. 	vector<int>arr(n);
  12. 	vector<int>hash(51);
  13.  
  14. 	for(int i=0;i<n;i++){
  15. 		cin>>arr[i];
  16. 		hash[arr[i]]++;
  17. 	}
  18. 	int q;//number of queries
  19. 	cin>>q;
  20. 	for(int i=0;i<q;i++){
  21. 		int query;
  22. 		cin>>query;
  23. 		cout<<hash[query]<<endl;
  24. 	}
  25. 	return 0;
  26.  
  27.  
  28. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/Ygfz5H
Hashing q1-optimized.
language:
C++ (gcc 8.3)
created:
6 days ago
visibility:
public

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