mediumBacktrackingPattern: Mixed
Rectangular Pattern Painter Solution
Problem Statement
You are given a rectangular grid with dimensions MxN. Your task is to fill this grid with a specific pattern using backtracking. The grid is represented as a 2D array, where each cell can have a value of 0 (empty) or 1 (filled). Implement a function to determine the total number of unique patterns that can be generated.
Constraints
- M and N will be positive integers between 1 and 100 (inclusive).
- The input will be a string of B, W, and G characters, representing the sequence of colors.
Time: O(M*N) Space: O(2^(M*N))
Analyze constraints and compute optimal solutions step-by-step.
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