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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. int f_op=-100;
  4. int minOp(int arr[],int n){
  5. 	unordered_map<int,int>m;
  6. 	for(int i=0;i<n;i++){
  7. 		m[arr[i]]++;
  8. 	}
  9. 	for(int i=0;i<n;i++){
  10. 		f_op=max(f_op,m[i]);
  11. 	}
  12. 	return n-f_op;
  13. }
  14. int main() {
  15. 	// your code goes here
  16. 	int n;
  17. 	cin>>n;
  18. 	int arr[n];
  19. 	for(int i=0;i<n;i++){
  20. 		cin>>arr[i];
  21. 	}
  22. 	cout<<"The minimum operation is:"<<minOp(arr,n);
  23. 	return 0;
  24. }
Success #stdin #stdout 0.01s 5288KB
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stdout
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The minimum operation is:3
https://ideone.com/nKB7nT
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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