COSC2138 - Week 2 Lab exercises

output.txt

Left Aligned
*
**
***
****
*****
******
*******
********
*********
**********

Right Aligned
         *
        **
       ***
      ****
     *****
    ******
   *******
  ********
 *********
**********

Center Aligned
         *
        ***
       *****
      *******
     *********
    ***********
   *************
  ***************
 *****************
*******************

Center Aligned Diamond
         *
        ***
       *****
      *******
     *********
    ***********
     *********
      *******
       *****
        ***
         *

Grid
* * * * * * * * * * * 
 * * * * * * * * * * *
* * * * * * * * * * * 
 * * * * * * * * * * *
* * * * * * * * * * * 
 * * * * * * * * * * *
* * * * * * * * * * * 
 * * * * * * * * * * *
* * * * * * * * * * * 
 * * * * * * * * * * *


Process finished with exit code 0

wk2.c

#include "stdio.h"
#include "stdlib.h"

void printStarLine(int spaces, int stars);

int main() {
    int rows = 10;

    /* Question 1
     * Left aligned stars
     * */
    printf("Left Aligned\n");
    for (int i = 1; i <= rows; ++i) {
        for (int j = 0; j < i; ++j) {
            printf("*");
        }
        printf("\n");
    }
    printf("\n");

    /* Question 2
     * Right aligned stars
     * */
    printf("Right Aligned\n");
    for (int i = 1; i <= rows; ++i) {
        int spaces = rows - i;
        int stars = i;
        printStarLine(spaces, stars);
        printf("\n");
    }
    printf("\n");

    /* Question 3
     * Center aligned stars
     * */
    printf("Center Aligned\n");
    int triangleWidth = 2 * rows;
    int triangleSpaces = triangleWidth / 2 - 1;
    int triangleStars = 1;
    for (int i = 1; i <= rows; ++i) {
        printStarLine(triangleSpaces, triangleStars);
        printf("\n");
        triangleSpaces--;
        triangleStars += 2;
    }
    printf("\n");

    /* Question 4
     * Center aligned diamond
     * */
    printf("Center Aligned Diamond\n");
    int diamondWidth = 2 * rows;
    int diamondSpaces = diamondWidth / 2 - 1;
    int diamondStars = 1;
    for (int i = 0; i <= rows; ++i) {
        printStarLine(diamondSpaces, diamondStars);
        printf("\n");
        int delta;
        if (i < rows/2) {
            delta = 2;
        } else {
            delta = -2;
        }
        diamondSpaces -= delta / 2;
        diamondStars += delta;
    }
    printf("\n");

    /* Question 5
     * Grid
     * */
    printf("Grid\n");
    for (int i = 0; i < rows; ++i) {
        char *unit;
        if (i % 2 == 0) {
            unit = "* ";
        } else {
            unit = " *";
        }
        for (int j = 0; j <= rows; ++j) {
            printf("%s", unit);
        }
        printf("\n");
    }
    printf("\n");

    return EXIT_SUCCESS;
}

void printStarLine(int spaces, int stars) {
    for (int j = 0; j < spaces; ++j) {
        printf(" ");
    }
    for (int k = 0; k < stars; ++k) {
        printf("*");
    }
}