C program to print square pattern of numbers

 Here's a C program to print a square pattern of numbers:

#include <stdio.h>

int main() {
    int n;

    printf("Enter the size of the square: ");
    scanf("%d", &n);

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            printf("%2d ", i);
        }
        printf("\n");
    }

    return 0;
} 

This program will create a square pattern of numbers where each row contains the same number, and the number increases with each row.

For example, if you input 4 for the size of the square, the program will generate the following pattern:

 1  1  1  1
 2  2  2  2
 3  3  3  3
 4  4  4  4 

You can adjust the size of the square by changing the value you enter when prompted.