Program to print hollow diamond star pattern using c

Question:

Write a c program to print hollow diamond pattern using the stars.

Logic:

• Get the length as an input from the user.
• Then print the corresponding spaces.
• And print the star only in the borders.

Program:

#include<stdio.h>
void main()
{
   int i,j,n;
   clrscr();
   printf("enter the length:");
   scanf("%d",&n);
   for(i=0;i<n;i++)                    //prints the first half of the pattern
   {
        for(j=i;j<n-1;j++)             //prints the spaces
	{
	   printf(" ");
	}
        for(j=0;j<=2*i;j++)            //2*i can gives total columns to print
	{
	   if(j==0||j==2*i)            //it prints the first and last coulumn
	   {
		printf("*");
	   }
	   else                        //prints intermediate spaces
	   {
		printf(" ");
	   }
        }
	printf("\n");
   }
   for(i=n-1;i>=1;i--)                 //prints the second half
   {
	for(j=i;j<n;j++)               //at same it prints spaces
	{
	   printf(" ");
        }
        for(j=1;j<2*i;j++)
	{
           if(j==1||j==2*i-1)          //it prints the boundaries as *
	   {
		printf("*");
	   }
	   else
	   {
		printf(" ");
	   }
	}
	printf("\n");
   }
   getch();
}

Alternative

#include<stdio.h>
int main()
{
    int size,i,k,temp,temp1=-3;
    printf("Enter the size:");
    scanf("%d",&size);
    for(i=0;i<(2*size)-1;i++)
    {
        temp=size-i-1;
        if(i>=size)
        {
            temp*=-1;
            temp1-=2;
        }
        else
            temp1+=2;
        for(k=0;k<temp;k++)
            printf(" ");
        printf("*");
        for(k=0;k<temp1;k++)
            printf(" ");
        if(i!=0&&i!=(2*size)-2)
            printf("*");
        printf("\n");
    }
    return 0;
}