Question

Write two functions, one that displays a circle and one that displays a rectangle. Use these functions to write a complete C program from the following outline:

int main()

{

/* Draw circle */

/* Draw rectangle */

}

Do NOT use #include<graphics.h>

Answer 1

/*
 *  C Program to print cirlce and rectangle
 */

#include <stdio.h>
#include <math.h>

void printCircle(int length, int width)
{
  int y, x, radius = 10;

  for (y = width; y >= -width; y -= 2)
  {
    for (x = -length; x <= length; x++)
    {
      if ((int)sqrt(pow(x,2)+pow(y,2)) == 10)
        printf("*");
      else
        printf(" ");
    }
    printf("\n");
  }
}

void printRectangle(int length, int width)
{
  int i, j;

  for (i = 0; i < length; i++)
  {
    for (j = 0; j < width; j++)
    {
      if(i == 0 || i == length-1 || j == 0 || j == width-1)
        printf("* ");
      else
        printf("  ");
    }
    printf("\n");
  }
}

int main()
{ 
  int r=10, length, width;
  
  length = r*1.5, width = r;
  printCircle(length, width);

  printf("\n\n");

  length = 20, width = 10;
  printRectangle(length, width);
  
  return 0;
}