C program to print diamond pattern of numbers

Here's a program to print a simple diamond pattern of numbers:

#include <stdio.h>

int main() {
    int n, space, number, i, j;

    printf("Enter the number of rows: ");
    scanf("%d", &n);

    for (i = 1; i <= n; i++) {
        // Print spaces before the numbers
        for (space = 1; space <= n - i; space++) {
            printf("  ");
        }

        // Print ascending numbers
        for (j = 1, number = 1; j <= 2 * i - 1; j++, number++) {
            printf("%2d", number);
        }

        printf("\n");
    }

    for (i = n - 1; i >= 1; i--) {
        // Print spaces before the numbers
        for (space = 1; space <= n - i; space++) {
            printf("  ");
        }

        // Print ascending numbers
        for (j = 1, number = 1; j <= 2 * i - 1; j++, number++) {
            printf("%2d", number);
        }

        printf("\n");
    }

    return 0;
} 

This program will create a diamond pattern of numbers based on the number of rows you input. It prints ascending numbers in the top half and descending numbers in the bottom half.

For example, if you input 5 for the number of rows, the program will generate the following diamond pattern:

    1
   123
  12345
 1234567
123456789
 1234567
  12345
   123
    1 

You can adjust the number of rows by changing the value you enter when prompted.