I need a C++ code that ouputs the following: Enter an odd number for the a diamo

Question

I need a C++ code that ouputs the following:

   Enter an odd number for the a diamond (1-19): 22
Enter an odd number for the a diamond (1-19): 111
Enter an odd number for the a diamond (1-19): -1
Enter an odd number for the a diamond (1-19): 6
Enter an odd number for the a diamond (1-19): 17
        *
       ***
      *****
     *******
    *********
   ***********
*************
***************
*****************
***************
*************
   ***********
    *********
     *******
      *****
       ***
        *

Press any key to continue . . .

Explanation / Answer

working c++ code

#include<iostream>
using namespace std;

int main()
{
int n, c, k, gap = 1;
int flag; // to check if number is even or odd

cout<<"Enter an odd number for the diamond"<<endl;
cin>>n;
flag=n%2;
if(n>19 || n< 1 || (flag==0))
{
   while(1)
   {
       cout<<"Enter an odd number for the diamond"<<endl;
           cin>>n;
           flag=n%2;
           if(n<19 && n >=1 && (flag == 1))
           break;
   }
}
n=(n-1)/2;
  

gap = n - 1;

for (k = 1; k <= n; k++)
{
for (c = 1; c <= gap; c++)
cout<<" ";

gap--;

for (c = 1; c <= 2*k-1; c++)
cout<<"*";
   cout<<endl;
}

gap = 1;

for (k = 1; k <= n - 1; k++)
{
for (c = 1; c <= gap; c++)
cout<<" ";

gap++;

for (c = 1 ; c <= 2*(n-k)-1; c++)
cout<<"*";

cout<<endl;
}

return 0;
}

compiled on ideone.

http://ideone.com/fE765V

output available at same ide.

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