star in diamond shape Pattern using C

//Pattern

#include<stdio.h>

int main()
{
int h,i,j;

printf("Enter the height");
scanf("%d",&h);


for(i=1;i<=h;i++)
{
 for(j=1;j<40-i;j++)
  printf(" ");
 for(j=1;j<=i;j++)
  printf("* ");
 printf("\n");
}
for(i=h-1;i>=1;i--)//4, 3
{
 for(j=1;j<40-i;j++)//32
  printf(" ");
 for(j=1;j<=i;j++)//j=1..4 -----   1..3 ------  1..2 ---  1..1
  printf("* ");
 printf("\n");
}

}