C program to print 0 or 1 square number pattern 
11111
11111
11111
11111
11111

C Programming Language Loop control in C Language (Article) Loop control in C Language (Program)

4892

Program:

/**
 * C program to print square number pattern
 * atnyla.com 
 */

#include <stdio.h>

int main()
{
    int rows, cols, i, j;

    /* Input rows and columns from user */
    printf("Enter number of rows: ");
    scanf("%d", &rows);
    printf("Enter number of columns: ");
    scanf("%d", &cols);

    /* Iterate through rows */
    for(i=1; i<=rows; i++)
    {
        /* Iterate through columns */
        for(j=1; j<=cols; j++)
        {
            printf("1");
        }

        printf("\n");
    }

    return 0;
}

Output:

Enter number of rows: 5
Enter number of columns: 5
11111
11111
11111
11111
11111

Explanation:

Logic to print square number pattern

Logic to print this square number pattern of 1 is simple and similar to square start pattern.

 

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We only need to replace the stars(*) with 1 or 0 whatever you want to print. Basic logic to print square number pattern of n rows and m columns.
Below is the step by step descriptive logic to print square number pattern.

  1. Input number of rows and columns to print from user. Store it in some variable say rows and cols.
  2. To print square number pattern, we need two loops. An outer loop to iterate through rows and second an inner loop to iterate through columns.
  3. Run an outer loop from 1 to total rows. The loop structure should look like for(i=1; i<=rows; i++).
  4. Inside the outer loop run an inner loop from 1 to total columns. The loop structure should look like for(j=1; j<=cols; j++).
  5. Inside the inner loop, print whatever you want to get printed as output, in our case print 1.
  6. After inner loop, advance the cursor position to next line i.e. print a dummy blank line.

Note: To print rectangle number pattern, make the rows and columns different.

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