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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     int t,n,b,c,z=1,tab[1000];
  8.  
  9.     cin>>t;
  10.  
  11.     for(int i=0; i<t; i++)
  12.     {
  13.         cin>>n;
  14.         {
  15.             for(int j=0; j<n; j++)
  16.             {
  17.                 cin>>b;
  18.                 tab[z]=b;
  19.                 z++;
  20.             }
  21.             z--;
  22.             c=z;
  23.             z=1;
  24.             for(int j=0; j<c; j++)
  25.             {
  26.                 if(z%2==1)
  27.                 {
  28.                     z++;
  29.                 }
  30.                 else if(z%2==0)
  31.                 {
  32.                     cout<<tab[z];
  33.                     z++;
  34.                 }
  35.             }
  36.             z=1;
  37.             for(int j=0; j<c; j++)
  38.             {
  39.                 if(z%2==1)
  40.                 {
  41.                     cout<<tab[z];
  42.                     z++;
  43.                 }
  44.                 else if(z%2==0)
  45.                 {
  46.                     z++;
  47.                 }
  48.             }
  49.             z=1;
  50.             cout<<endl;
  51.         }
  52.     }
  53.  
  54.     return 0;
  55. }
  56.  
Success #stdin #stdout 0s 16064KB
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stdin
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4
6 1 2 3 4 5 6
5 1 2 3 4 5
4 1 2 3 4
3 1 2 3
stdout
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246135
24135
2413
213
https://ideone.com/5rg49s
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
secret

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