Star Pattern Program - 1

/*

 C Program to print following pattern.

     *         *

     * *     * *

     * * * * * *

 */

// Include Section

#include<stdio.h>

// Declarations

/* printPattern

 * Description : This function prints the pattern

 * Param         : int- number of lines to be printed.

 * Return        : void

 */

void printPattern(int);

// Definitions

int main()

{

    int i_numberOfLines = 0;

    printf("Enter how many line you want to print : ");

    scanf("%d",&i_numberOfLines);

    

    printPattern(i_numberOfLines);

}

void printPattern(int i_numberOfLines)

{

    // hItr is horizontal iterator which moves one row at a time.

    for(int hIter=0; hIter < i_numberOfLines; hIter++)

    {

        // for loop to print first number of start.

        // On every line number of stars is equal to current line number.

        for(int starIter = 0; starIter <= hIter; starIter ++)

            printf("*");

        

        // Now we have to print spaces.

        //The max number of stars that can be there is 2*number of lines.

        // On every line we print before and after spaces * equal to current line number.

        // So number of spaces to print = (2*number of lines) - (2*current Line)

        for(int spaceIter = 0; spaceIter < ((2*i_numberOfLines - 2*hIter)-1); spaceIter++)

            printf(" ");

        

        // Now print again * equal to current line number

        for(int starIter = 0; starIter <= hIter; starIter ++)

            printf("*");

        

        // Go to next line

        printf("\n");

    }

}