In C, a square pattern can be created using loops and the printf() function. Here is an example of how to create a square pattern of asterisks:

Copy code

for (int i = 0; i < 5; i++) {    for (int j = 0; j < 5; j++) {        printf("* ");    }    printf("\n"); }

This code uses nested loops to create a square pattern of 5x5 asterisks. The outer loop controls the number of rows, and the inner loop controls the number of asterisks in each row.

You can change the number of rows and columns of the square by changing the value of the loop variable and condition. For example, to create a square of 8x8 you can change the condition of the loop to 8, like this:

Copy code

for (int i = 0; i < 8; i++) {    for (int j = 0; j < 8; j++) {        printf("* ");    }    printf("\n"); }

You can also use different characters or symbols to create different patterns, for example, to create a square of numbers, you can change the printf statement inside the inner loop to printf("%d ", i * j);, this will print the result of i*j on each cell of the square.

It's important to make sure that the loops are properly nested and that the indentation is correct, this will help to understand the code and the control flow better.