/*This is a 'C'program which print the following

Asterisk pattern as output:- 

**********

 ****  ****

  ***    ***

  **      **

    *        * & so on*/

#include<stdio.h>

#include<conio.h> //header files

void main()

{

int i,j,n,k; //variables

clrscr();

printf("Enter the number of lines upto which the pattern will print[natural number only]:");

scanf("%d",&n);

for(i=n;i>=1;i--)//start of loop.This loop control the row of pattern print.

{

for(j=1;j<=i;j++)//nested loop.This loop print the left side asterisk of pattern.

printf("*");

for(k=1;k<=2*(n-i);k++)//nested loop.This loop control the space between asterisk pattern.

printf(" ");

for(j=1;j<=i;j++)//nested loop.This loop print the right side asterisk of pattern.

printf("*");

printf("\n");//This statement is use to change row of the pattern.

}//end of loop

getch();

}//end of program