Program to print number pattern at even/odd columns 10101 10101 10101

🚀 Programming Example

Program to print number pattern at even/odd columns

👁 5,986 Views

💻 Practical Program

📘 Step Learning

Write a C program to print the given number pattern series of 1's and 0's at alternate columns using loop. How to print number pattern with one's at even column and zero's at odd column using for loop in C programming. Logic to print given number pattern of 1 and 0 at alternate columns.

💻 Program Code

/**
 * C program to print number pattern with 1/0 at even/odd position
 * www.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);

    for(i=1; i<=rows; i++)
    {
        for(j=1; j<=cols; j++)
        {
            printf("%d", !(j%2));
        }

        printf("\n");
    }

    return 0;
}

🖥 Program Output

Enter number of rows: 5
Enter number of columns: 5
10101
10101
10101
10101
10101

📘 Explanation

The above method is easy to understand and write. However, you can further optimize the previous method by removing the if else condition. The statement j%2 returns 0 if number is even otherwise returns 1. We only need to print complement of value returned by j%2.

Required knowledge

Basic C programming, Loop

Must know - Program to check even number

Logic to print number pattern with 1, 0 at alternate columns

In previous post I explained a similar pattern. Logic to print this is almost similar. If you have noticed the pattern carefully, for every odd columns 0 is printed and for every even columns 1 is printed.

Below is the step by step descriptive logic to print the given pattern.

Input number of rows and columns to print from user. Store it in some variable say rows and cols.
To iterate through rows run an outer loop from 1 to rows. The loop structure should look like for(i=1; i<=rows; i++).
To iterate through columns run an inner loop from 1 to cols. The loop structure should look like for(j=1; j<=cols; j++).
Inside the inner loop print 1 if current column is even otherwise print 0. Means if(j%2==0) then print 1 otherwise print 0.
Finally move to the next line after printing one column.

🎯 How to learn from this example

First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.

🔥 Practice suggestion

Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.

Program to print number pattern at even/odd columns
10101 10101 10101 10101 10101

💻 Program Code

🖥 Program Output

📘 Explanation

Required knowledge

Logic to print number pattern with 1, 0 at alternate columns

Master Programming Through Practical Examples

🎯 How to learn from this example

🔥 Practice suggestion

⚡ Quick Practice Flow

📚 Related Programs

Program to print number pattern at even/odd columns 10101 10101 10101 10101 10101

💻 Program Code

🖥 Program Output

📘 Explanation

Required knowledge

Logic to print number pattern with 1, 0 at alternate columns

Master Programming Through Practical Examples

🎯 How to learn from this example

🔥 Practice suggestion

⚡ Quick Practice Flow

📚 Related Programs

Program to print number pattern at even/odd columns
10101 10101 10101 10101 10101