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  1. /******************************************************************************
  2.  
  3. Welcome to GDB Online.
  4. GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
  5. C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
  6. Code, Compile, Run and Debug online from anywhere in world.
  7.  
  8. *******************************************************************************/
  9. #include <iostream>
  10. using namespace std;
  11. int main()
  12. {
  13.     int n;
  14.     cin>>n;
  15.     if(n<0 || n==1 || n%2==0)
  16.     {
  17.         cout<<"ERROR! Invalid Input";
  18.     }
  19.     else{
  20.     for(int i=0; i<n+1; i++)
  21.     {
  22.         cout<<"* ";
  23.     }
  24.     cout<<endl;
  25.     for(int j=0; j<n; j++)
  26.     {
  27.         for(int k=0; k<n+1; k++)
  28.         {
  29.         if(k==n/2 || k==(n/2)+1)
  30.         {
  31.             cout<<"e ";
  32.         }
  33.         else
  34.         {
  35.             cout<<"  ";
  36.         }
  37.         }
  38.         cout<<endl;
  39.     }
  40.     }
  41.     return 0;
  42. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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ERROR! Invalid Input
https://ideone.com/OcFDsD
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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