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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int arr[10] = {1,2,2,1,3,4,5,3,5,6};
  7. 	int query [2] = {2,6};
  8.  
  9. 	unordered_map<int,int> hash ;
  10.  
  11. 	for(int i = 0 ; i < 10 ; i++){
  12. 		hash[arr[i]]++; 
  13. 	}
  14.  
  15. 	for(int j = 0 ; j < 2 ; j++){
  16. 		cout<<hash[query[j]]<<endl;
  17. 	}
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 5268KB
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https://ideone.com/9o8kSh
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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