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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. using ll = long long;
  5.  
  6. int main() {
  7. 	ll n;
  8. 	cin>>n;
  9. 	vector<ll>a(n);
  10. 	for(int i = 0;i< n ;i++){
  11. 		cin>>a[i];
  12. 	}
  13. 	vector<int>b(n);
  14. 	for(int i = 0;i<n ;i++){
  15. 		b[i] = pow(2,a[i]);
  16. 	}
  17. 	int sum = accumulate(b.begin(),b.end(),0);
  18.  
  19. 	int count = 0;
  20. 	for(int i = 31;i>=0;i--){
  21. 		if((sum>>i)&1)count++;
  22. 	}
  23.  
  24.  
  25. 	cout<<count;
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 5328KB
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https://ideone.com/ioGOWk
language:
C++14 (gcc 8.3)
created:
6 hours ago
visibility:
public

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