Printing_Pattern.c

/*  Program to print the following pattern
     
     3 3 3 3 3
     3 2 2 2 3
     3 2 1 2 3
     3 2 2 2 2
     3 3 3 3 3
*/

#include <stdio.h>

int main()
{
    int N, i, j;
    printf("Enter N: ");
    scanf("%d", &N);

    // ***First upper half of the pattern***
    for (i = N; i >= 1; i--)
    {
        // First inner part of the upper half
        for (j = N; j > i; j--)
        {
            printf("%d", j);
        }

        // Second inner part of the upper half
        for (j = 1; j <= (i * 2 - 1); j++)
        {
            printf("%d", i);
        }

        // Third inner part of the upper half
        for (j = i + 1; j <= N; j++)
        {
            printf("%d", j);
        }
        printf("\n");
    }

    // ***Second lower half of the pattern***
    for (i = 1; i < N; i++)
    {
        // First inner part of lower half
        for (j = N; j > i; j--)
        {
            printf("%d", j);
        }

        // Second inner part of lower half
        for (j = 1; j <= (i * 2 - 1); j++)
        {
            printf("%d", i + 1);
        }

        // Third inner part of lower half
        for (j = i + 1; j <= N; j++)
        {
            printf("%d", j);
        }

        printf("\n");
    }
    return 0;
}