program for histogram given array elements

/* program printing stars equal to each element in the list */

#include<stdio.h>

#include<conio.h>

void main()

{

int a[20], i, j, n;

clrscr();

printf("\n Enter the how many array elements: ");

scanf("%d",&n);

printf("\n Enter %d elements: ",n);

for(i=0;i<=n-1;i++)

scanf("%d",&a[i]);

for(i=0;i<n;i++)

{

          printf("\n a[%d] = %d : ",i,a[i]);

          for(j=0;j<a[i];j++)

          printf(" *");

}

getch();

}