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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define loop(i,n) for(int i=0;i<n;i++)
  4. int main(){
  5. 	int t,n,a[100005],i,sum;
  6. 	cin>>t;
  7. 	while(t--){
  8.  
  9. 		sum=0;
  10. 		cin>>n;
  11. 		loop(i,n) cin>>a[i];
  12. 		loop(i,n) sum=sum|a[i];
  13. 		cout<<sum<<endl;
  14. 	}
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 15496KB
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stdin
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1
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10 11 6
stdout
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15
https://ideone.com/VnyDWR
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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