Program to print the given pattern 
12345
12345
12345
12345
12345

C Programming Language / Loop control in C Language

17280

Program:

/**
 * C program to print number pattern
 * 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++)
        {
            // Print the current column number
            printf("%d", j);
        }

        printf("\n");
    }

    return 0;
}

Output:

Enter number of rows: 5
Enter number of columns: 5
12345
12345
12345
12345
12345

Explanation:

Required knowledge

Basic C programming, Loop

Logic to print the given number pattern

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

  1. Input number of rows and columns to print from user. Store it in some variable say rows and cols.
  2. Run an outer loop from 1 to rows. The loop structure should look like for(i=1; i<=rows; i++).
  3. Run an inner loop from 1 to cols. The loop structure should look like for(j=1; j<=cols; j++).
  4. Inside the inner loop print the current column number which is represented by j.
  5. Finally, after printing all columns of a row move to next line.

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