hollowdiamondinsolidrectangle.cpp

#include<iostream>
using namespace std;

int main()
{
    int i,j,n;
    cout<<"Enter the number: ";
    cin>>n;
    for(i=n;i>=1;i--)
        {
            for(j=1;j<=i;j++)
              {
                  cout<<"*";
              }
            for(j=1;j<=n-i;j++)
              {
                  cout<<" ";
              }
            for(j=1;j<=n-i;j++)
              {
                  cout<<" ";
              }  
            for(j=1;j<=i;j++)
              {
                  cout<<"*";
              }     
            cout<<endl;
        }   
    for(i=1;i<=n;i++)
        {
            for(j=1;j<=i;j++)
              {
                  cout<<"*";
              }
            for(j=1;j<=n-i;j++)
              {
                  cout<<" ";
              }
            for(j=1;j<=n-i;j++)
              {
                  cout<<" ";
              }  
            for(j=1;j<=i;j++)
              {
                  cout<<"*";
              }     
            cout<<endl;
        }
     
    return 0;
}