/**
* C program to print
hollow pyramid star pattern
*
* *
* *
* *
* *
*
* *
* *
* *
* *
*/
#include <stdio.h>
#include<conio.h>
void main()
{
int i, j, rows;
/* Input rows to
print from user */
printf("Enter
number of rows : ");
scanf("%d",
&rows);
for(i=1; i<=rows;
i++)
{
/* Print
trailing spaces */
for(j=i; j<rows;
j++)
{
printf("
");
}
/* Print
hollow pyramid */
for(j=1; j<=(2*i-1);
j++)
{
/*
* Print
star for last row (i==rows),
* first
column(j==1) and for
* last
column (j==(2*i-1)).
*/
if(j==1 || j==(2*i-1))
{
printf("*");
}
else
{
printf("
");
}
}
/* Move to
next line */
printf("\n");
}
getch();
}
source: codeforwin.org