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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n, q; 
  6. 	cin>>n;
  7.  
  8. 	vector<int> arr(n);
  9. 	for (int i=0; i<n; i++){
  10. 		cin>>arr[i];
  11. 	}
  12.  
  13. 	cin>>q;
  14. 	vector<int> query(q);
  15. 	for (int i=0; i<q; i++){
  16. 		cin>>query[i];
  17. 	}
  18.  
  19. 	int maxele = INT_MIN;
  20. 	for (int i=0; i<n; i++){
  21. 		maxele = max(maxele, arr[i]);
  22. 	}
  23.  
  24. 	// cout<<maxele<<endl;
  25.  
  26. 	vector<int>hash(maxele+1, 0);
  27. 	// cout<<hash[maxele]<<endl;
  28.  
  29. 	for (int i=0; i<n; i++){
  30. 		hash[arr[i]]++;
  31. 	}
  32.  
  33. 	for (int i=0; i<q; i++){
  34. 		if (query[i] > maxele)
  35. 			cout<<query[i]<<" -> "<<0<<endl;
  36. 		else cout<<query[i]<<" -> "<<hash[query[i]]<<endl;
  37. 	}
  38. 	return 0;
  39. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
copy 
10
1 2 3 4 3 2 1 45 5 5
4
5 2 45 60
stdout
copy 
5 -> 2
2 -> 2
45 -> 1
60 -> 0
https://ideone.com/SS13ec
language:
C++14 (clang 8.0)
created:
1 day ago
visibility:
public

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