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  1. #include <iostream>
  2. #include<bits/stdc++.h>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7. 	int n,q ; cin>>n>>q;
  8. 	vector<int>arr(n);
  9. 	unordered_map<int,int>hash;
  10.  
  11. 	for(int i=0;i<n;i++){
  12. 		cin>>arr[i];
  13. 		hash[arr[i]]++;
  14. 	}
  15.  
  16. 	for(int i =0;i<q;i++){
  17. 		int query;
  18. 		cin>>query;
  19. 		cout<<hash[query]<<" ";
  20. 	}
  21.  
  22. 	return 0;
  23. }
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
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10 3
3 2 4 1 2 1 5 4 2 1
1 2 4
stdout
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3 3 2
https://ideone.com/5o5bIw
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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