Rat in a Maze Problem
Explore how to apply recursion and backtracking to solve the Rat in a Maze problem by finding all possible paths through a binary maze matrix. Understand the approach to move right and down safely, marking valid paths and backtracking when blocked, preparing you for similar coding interview challenges.
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Problem statement
A maze is given as N*N binary matrix of blocks where the source block is the upper left most block (maze[0][0]) and the destination block is the lower rightmost block (maze[N-1][N-1]). A rat starts from the source and has to reach the destination. The rat can move in two directions only: right and down. We need to find all possible ways that a rat can pass through the maze with the given constraints.
In the maze matrix, 0 means the block is a dead end, and X means the block can be used in the path from source to destination. Note that this is a simple version of the ...