How many squares are drawn if foo(0,0,5,2) is called? The provided text describes a function in an educational context regarding computer programming and graphics.---**Explanation of the Function:**The text defines a recursive function `foo` that uses an auxiliary function called `drawSquare`. The `drawSquare(double x, double y, double halfLen)` function is responsible for drawing a square centered at coordinates `(x, y)` with a side length that is double the given `halfLen`. For instance, `drawSquare(0,0,5)` would draw a square centered at the origin `(0,0)` with a side length of `10`.**Detailed Breakdown of the Code:**```javapublic static void foo(double x, double y, double len, int n) { if (n < 1) return; drawSquare(x, y, len); foo(x - len/2, y - len/2, len/2, n - 1); foo(x - len/2, y + len/2, len/2, n - 1); foo(x + len/2, y + len/2, len/2, n - 1); foo(x + len/2, y - len/2, len/2, n - 1);}```**Function Behavior:**- **Base Case:** The recursion stops when `n < 1`. In this case, the function simply returns without doing anything. - **Recursive Case:** - First, it draws a square centered at `(x, y)` with side length `len`. - Then, it makes four recursive calls to itself, each time subdividing the current square into four smaller squares and recentering. - The square's center for the recursive calls is adjusted by half of the current length (`len/2`) to cover all four quadrants: - Bottom-left - Top-left - Top-right - Bottom-rightThis method is often used to create fractal patterns or divide graphical space efficiently.--- This explanation provides a detailed view of the recursive structure and graphical operations performed by the `foo` function, essential for understanding recursion and graphical transformations in programming.

Given, drawSquare (double x, double y, double halfLen) draws a square with each side of length 2×halfLen with centre at (x,y). foo(double x, double y, double len, int n) { if (n<1) return; drawSquare (x, y, len); foo (x-len/2, y-len/2, len/2, n-1); foo (x-len/2, y+len/2, len/2, n-1); foo (x+len/2, y+len/2, len/2, n-1); foo (x+len/2, y-len/2, len/2, n-1); }foo (0, 0, 5, 2) Here, x=0, y=0, len 5, n=2 n>1 so the if condition is invalid. drawSquare (0, 0, 5); This function draws a square with each side of length 2×5=10 and centre at (0,0). foo (0-5÷2, 0-5/2, 5÷2, 2-1); ⇒foo (-2.5, -2.5, 2.5, 1); foo (-2.5, 2.5, 2.5, 1); foo (2.5, 2.5, 2.5, 1); foo (2.5, -2.5, 2.5, 1);foo (-2.5, -2.5, 2.5, 1) Here, x=-2.5, y=-2.5, len=2.5, n=1 Since n=1, the if condition is not valid. drawSquare (-2.5,-2.5, 2.5); This function draws a square with each side of length 2×2.5=5 and centre at (-2.5,-2.5). foo (-3.75, -3.75, 1.25, 0); foo (-3.75, -1.25, 1.25, 0); foo (-1.25, -1.25, 1.25, 0); foo (-1.25, -3.75, 1.25, 0); Since n<0, the above 4 foo functions will not draw any square. Similarly, foo (-2.5, 2.5, 2.5, 1), foo (2.5, 2.5, 2.5, 1) and foo (2.5, -2.5, 2.5, 1) will also draw 1 square each. So, the total number of squares drawn if foo(0,0,5,2) is called = 1+1+1+1+1=5. Answer. 5.

Answered: How many squares are drawn if…

Engineering

Computer Science

How many squares are drawn if foo(0,0,5,2) is called?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

You are given a dictionary of names and the amount of points they have. Return a dictionary with the same names, but instead of points, return what prize they get. "Gold", "Silve=", or "Bronze" to the 1st, 2nd and 3rd place respectively. For all the other names, return-Participation for the prize. Examples awardPrisen.(( "Joshua" 45, "Alex" 39, "Eric" 43 }} = {\ } "Joshua" "Gold", "Alex" "Bronse", "Eric" "Silver"
Program to calculate area of rectangle using classes.
2+2=0 How? .........
You are given a 2 by n grid, where the cell on row i column j contains a non-negative number ai,j . You can start at either cell in the lefttmost column, and your goal is to reach either cell in the rightmost column by a sequence of moves. You can move to an adjacent cell (if it exists) in each of the 4 cardinal directions (up,down, left and right). A path achieves a score equal to the sum of values in its cells. Note that a cell which is used twice in a path only counts its value once to the score of that path.Design an algorithm which runs in O(n) time and finds a path of minimum score from the leftmost column to the rightmost column.
This challenge is based on the classic videogame "Snake". Assume the game screen is an n * n square, and the snake starts the game with length 1 (i.e. just the head) positioned on the top left corner. For example, if n = 7 the game looks something like this: BEGINNING In this version of the game, the length of the snake doubles each time it eats food (e.g. if the length is 4, after eating it becomes 8). Create a function that takes the siden of the game screen and returns the number of times the snake can eat before it runs out of space in the game screen. Examples FIRST MOVE snakefill (3) snakefill (6) - 5 snakefill (24) → 9 3
What is the worst case running time for finding the kth value in an array?
Question: Update Bresenham’s line (JAVA) method such that you can scale the line before drawing it. Normally, you pass two points and a Graphics’ object to draw line using Bresenham’s algorithm. Now you’ll add scaling factors in arguments for scaling as shown below. public void drawBresenhamLine(Point p1, Point p2, double Sx, double Sy, Graphics g) { //Write your code here } Note: If you use scaling method, then also write Scale method in solution.
how about by dividing the number by 2 until it becomes odd? how do you do that?
Random number generators are as good as they perform on the tests. What would happen if someone comes up with a test where the linear congruential method performspoorly?
This challenge is based on the classic videogame "Snake". Assume the game screen is an n * n square, and the snake starts the game with length 1 (i.e. just the head) positioned on the top left corner. For example, if n = 7 the game looks something like this: BEGINNING FIRST MOVE In this version of the game, the length of the snake doubles each time it eats food (e.g. if the length is 4, after eating it becomes 8). Create a function that takes the side n of the game screen and returns the number of times the snake can eat before it runs out of space in the game screen. Ctrl+En
This challenge is based on the classic videogame "Snake". Assume the game screen is an n * n square, and the snake starts the game with length 1 (i.e. just the head) positioned on the top left corner. For example, if n = 7 the game looks something like this: BEGINNING FIRST MOVE In this version of the game, the length of the snake doubles each time it eats food (e.g. if the length is 4, after eating it becomes 8). Create a function that takes the side n of the game screen and returns the number of times the snake can eat before it runs out of space in the game screen. Ctrl+En
This challenge is based on the classic videogame "Snake". Assume the game screen is an n * n square, and the snake starts the game with length 1 (i.e. just the head) positioned on the top left corner. For example, if n = 7 the game looks something like this: BEGINNING In this version of the game, the length of the snake doubles each time it eats food (e.g. if the length is 4, after eating it becomes 8). Create a function that takes the siden of the game screen and returns the number of times the snake can eat before it runs out of space in the game screen. Examples FIRST MOVE snakefill (3) snakefill (6) - 5 snakefill (24) → 9 3