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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7. 	int t,n;
  8.     string original,similar="";
  9.     cin>>t;
  10.     for(int i=0;i<t;i++){
  11.         cin>>n;
  12.         cin>>original;
  13.         for (int i = 0; i < int(original.size()); i += 2){
  14.             similar += original.at(i);
  15.         }
  16.         cout<<similar<<endl;
  17.         similar="";
  18.     }
  19.  
  20.     return 0;
  21. }
  22.  
Success #stdin #stdout 0s 4180KB
comments (?)
stdin
copy 
4
1
1
3
00000
4
1110000
2
101
stdout
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1
000
1100
11
https://ideone.com/hosSFZ
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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