A program to display the following series:

#include<iostream.h>
#include<conio.h>

void main()
{
clrscr();
int i,j;

for(i=1;i<=4;i++)
{
for(j=1;j<=i;j++)
cout<<"*";
cout<<"\n";
}

for(i=3;i>=1;i--)
{
for(j=1;j<=i;j++)
cout<<"*";
cout<<"\n";
}

getch();
}

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