Crossword Puzzle Of The Week #15 (for Backtracking)

In this issue of Crossword Puzzle of the Week, we will dive into the topic of backtracking. The solution to the crossword puzzle is provided at the end.

Crossword Puzzle Of The Week #15 (for Backtracking)

HINTS:

DOWN:

1. This is a standard Backtracking problem in which weights and values of n items are given. We need to get the maximum total value of items.

2. The _____ is the problem of placing N chess queens on an N×N chessboard so that no two queens attack each other.

3. Backtracking uses _____ to solve its problems. It does so by exploring all the possibilities of any problem unless it finds the best and most feasible solution to it.

4. A Standard backtracking problem in which an undirected graph and a number m are given, determine if the graph can be colored with at most m colors such that no two adjacent vertices of the graph are colored with the same color.

5. _____ Problem – In this, we find all feasible solutions.

ACROSS:

6. This is a Standard Backtracking problem. Given a partially filled 9×9 2D array ‘grid[9][9]’, the goal is to assign digits (from 1 to 9) to the empty cells so that every row, column, and subgrid of size 3×3 contains exactly one instance of the digits from 1 to 9. 

7. A Maze is given as an N*N binary matrix of blocks where the source block is the upper leftmost block i.e., maze[0][0] and the destination block is the lower rightmost block.

8. _____ Problem – In this, we search for a feasible solution.

9. Given an N*N board with the Chess player placed on the first block of an empty board. Moving according to the rules of chess player must visit each square exactly once. Print the order of each cell in which they are visited.

10. A node is _____ if it eventually leads to the desired solution.

Solution for Crossword Puzzle #15:

Crossword Puzzle Of The Week #15 (for Backtracking)

Answers:

DOWN:

1. KNAPSACK

2. N QUEEN

3. RECURSION

4. M COLORING

5. ENUMERATION

ACROSS:

6. SUDOKU

7. RAT IN MAZE

8. DECISION

9. THE KNIGHT TOUR

10. PROMISING