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CSC-171 Skyscraper Puzzle

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Project 2 CSC-171
Skyscraper Puzzle
3/9/2021
1 Problem
Imagine a city block of skyscrapers whose area is surrounded by streets. Skyscrapers of
various heights are evenly distributed into the rows and columns of the block. A skyscraper
puzzle is one where you are asked to organize the skyscrapers into a valid configuration that
meets all the criteria for the puzzle.
1.1 Puzzle Details
These game rules, along with sample puzzles, can be found at:
http://www.brainbashers.com/s...
Figure 1: Skyscraper Rules
1
Figure 2: Skyscraper ”Clues” or ”Looking Values”
Figure 3: Skyscraper Puzzle Solution
1.2 Warmup
Try to solve the puzzle in the figure below – this part is just for fun!
2
2 Project Requirements
Although it would be a very fun exercise to write a program to solve skyscraper puzzles, for
this project you are only asked to write a program to verify solutions.
You should design a Skyscraper class, with private variables representing the state (i.e., the
board configuration) as well as the following methods:

  1. public boolean verifyPlacement() – this method should return true if the placement
    is valid (i.e., every row and every column contains each number exactly once.).
    Otherwise, this method should return false.
  2. public void loadPuzzle() – this method should read a puzzle from standard input
    in the format specified below. This method must update the relevant instance variables
    for the object.
  3. public void print() – this method should print the puzzle to standard output following
    the format specified below.
  4. public void printWithVisibility() – this method should print the puzzle along
    with the visibility scores on the outside.
  5. A very simple main method which loads the puzzle from the user, then checks validity
    and prints the result. If it’s valid, it also prints the puzzle with visibility.
    Continued on next page.
    3
    2.1 Input and Output Format
    The loadPuzzle() method reads the configuration from standard input. This is the format
    of the input and the required output for basic printing:
  6. The first line contains the square dimension of the board, DIM, as a single integer.
  7. The remaining DIM lines will each contain exactly DIM positive integers, separated by
    a single space, but with no trailing space after the last integer. These lines represent
    the heights of the skyscrapers in the same layout as the puzzle.
  8. All subsequent lines should be ignored.
    For example, the puzzle in Figure 3 is described by the input:
    4
  9. 3 2 1
  10. 4 3 2
  11. 2 1 4
  12. 1 4 3
    2.1.1 printWithVisibility Format
    The printWithVisibility method should output a graphical representation of the puzzle,
    along with the visibility scores calculated according to the rules described earlier.
    For the puzzle in Figure 3, the output of this method should be:
  13. 2 3 3【CSC-171 Skyscraper Puzzle】1|4 3 2 1|4
    2|1 4 3 2|3
    2|3 2 1 4|1
    2|2 1 4 3|2
  14. 3 1 2
    2.2 Design and Documentation
    You are required to have exactly the public methods described in this document. You are
    also encouraged (but not required) to have helper methods. (These may be particularly
    helpful when verifying the puzzle and when calculating visibility.) All your helper methods
    should be declared private. If you have any class variables, they must be declared private
    as well.
    Because it complicates grading, you are not allowed to have any package declarations. Including
    package declarations in your submission will cause you to lose points.
    As with all Java programs, your program filename must match the public class exactly,
    therefore your program must be named Skyscraper.java and your class name must be
    named Skyscraper.
    4
    Please include a readme in this submission which describes the state of your code. If everything
    works, you can simply write that everything works. Otherwise, describe what does and
    does not work when you submit it. Your readme should be plain text – no docx, rtf, or pdf
    files please.
  15. Grading
    Your grade for this assignment will be based on the following

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