Print Floyd's Triangle

Observations  about the pattern : 

1. We need to navigate to n number of rows.
2. On each row, we need to navigate for numbers same as that of that row number.
3. The numbers that are printed go on increasing as they get printed.

/*

 * C Program to print Floyd's Triangle.

 *     1

 *     2 3

 *     4 5 6

 *     7 8 9 10

 */

// Includes

#include <stdio.h>

// Declarations

/* printFloydTriangle

 * Description : Function to print Floyd's triangle.

 * Parameters  : i_numberOfLines is how many lines triangle to be printed.

 * Return      : unsigned short 0 - if the triangle was not printed for some reason.

 *                              1 - if triangle is printed.

 */

unsigned short printFloydTriangle(int i_numberOfLines);

// Difinitions

int main()

{

    int i_numberOfLines;

    printf("Enter how many lines would you like to print : ");

    scanf("%d",&i_numberOfLines);

    

    if (!printFloydTriangle(i_numberOfLines))

    {

        printf("Could not print the triangle.");

    }

}

unsigned short printFloydTriangle(int i_numberOfLines)

{

    register unsigned  lineItr;           // Iterator for number of lines.

    register unsigned  numberItr;         // Iterator for numbers on each line.

    register unsigned  numberIncrementor; // keeps incrementing as printed.

    

    if (i_numberOfLines <= 0)

    {

        return 0;

    }

    

    // Iterate over each line

    for (lineItr = 1, numberIncrementor=1; lineItr <= i_numberOfLines; lineItr++)

    {

        // On each line - print numbers as much that of current line number

        for (numberItr = 1; numberItr <= lineItr; numberItr++)

        {

            printf("%-5d",numberIncrementor++);

        }

        

        // Move on to next line

        printf("\n");

    }

    return 1;

}