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Grokking the Coding Interview Patterns in Python

Unique Paths

Explore how to determine the number of unique paths a robot can take to travel from the top-left to the bottom-right corner in a grid while moving only right or down. Learn to implement an optimal solution considering algorithm efficiency and constraints.

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Statement

Imagine a scenario where an adventurous little robot, named Robi, has a mission to traverse a grid with m rows and n columns and reach a treasure box placed at grid[m−1][n−1]grid[m-1][n-1] ...