fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int n, queries;
  7. 	cin>>n>>queries;
  8.  
  9. 	unordered_map<int, int> freq;
  10. 	int arr[n];
  11. 	for(int i=0; i < n; i++){
  12. 		cin>>arr[i];
  13. 	}
  14.  
  15. 	for(int i = 0; i < n; i++){
  16. 		freq[arr[i]]++;
  17. 	}
  18.  
  19. 	for(int i = 0; i < queries; i++){
  20. 		int query;
  21. 		cin>> query;
  22.  
  23. 		cout<<freq[query]<<endl;
  24. 	}
  25. 	return 0;
  26. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
copy 
5
2
5 3 5 2 1 
5
1
stdout
copy 
2
1
https://ideone.com/X2HoDI
language:
C++14 (gcc 8.3)
created:
13 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!