Program to print the given pattern 
12345
23456
34567
45678
56789

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

37060

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=i; j < i+cols; j++)
        {
            printf("%d", j);
        }

        printf("\n");
    }

    return 0;
}

Output:

Enter number of rows: 5
Enter number of columns: 5
12345
23456
34567
45678
56789

Explanation:

Required knowledge

Basic C programming, Loop

Logic to print the given pattern

Before moving on to this pattern it is recommended that you get acquainted with logic to print basic number pattern.

Once you get familiar to the number patterns carefully have an eye on this pattern. If you look carefully you will notice that for each column numbers are started with the row number, lets say the starting number in each row is k. For each column numbers get printed till k + columns (where columns is the total number of columns to be printed per row). Hence, we would apply this logic inside our looping constructs to print the given pattern.

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