Program to print hollow diamond shape pattern.

#include<iostream>
using namespace std;
int main()
{
int n;
cout<<"Enter the no. of values:";
cin>>n;
for(int i=1;i<=n;i++)
{

cout<<endl;
for(int s=1;s<=n-i;s++)
cout<<" ";
for(int j=1;j<=1;j++)
if(i!=1)
cout<<"*";
for(int k=1;k<=2*(i-1)-1;k++)
cout<<" ";
for(int l=1;l<=1;l++)
cout<<"*";
}
for(int i=n;i>=1;i--)
{
if(i!=n)
cout<<endl;
for(int s=1;s<=n-i;s++)
cout<<" ";
for(int j=1;j<=1;j++)
if(i!=1 && i!=n)
cout<<"*";
for(int k=1;k<=2*(i-1)-1;k++)
cout<<" ";
for(int l=1;l<=1;l++)
if(i!=n)
cout<<"*";
}
return 0;
}


By Ayush Gupta, Student