number pattern 2 v1.c

/*
    number pattern 2 v1.c

    Program by Debottam Das
    https://www.facebook.com/debottam.das.121

 Enter a number of rows (1 to 9)  9

1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1
1 2 3 4 5 6 7 8   8 7 6 5 4 3 2 1
1 2 3 4 5 6 7       7 6 5 4 3 2 1
1 2 3 4 5 6           6 5 4 3 2 1
1 2 3 4 5               5 4 3 2 1
1 2 3 4                   4 3 2 1
1 2 3                       3 2 1
1 2                           2 1
1                               1

*/


#include<stdio.h>


void number_pattern_2(int n)
{
    int i, j, k, start;

    k = n;

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

        for(j=0; j<2*n-1; j++)
        {
            if(j < n)
                start++;
            else
                start--;

            if(j<k || j>2*n-k-2)
                printf("%d ",start);
            else
                printf("  ");
        }

        k--;
        printf("\n");
    }
}


int main(void)
{
    int number_of_rows;

    printf("\n Enter a number of rows (1 to 9) :  ");
    scanf("%d",&number_of_rows);

    printf("\n");

    number_pattern_2(number_of_rows);


    return 0;
}