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Unique Paths

Understand how to calculate the total number of unique paths a robot can take through an m by n grid moving only right or down. This lesson helps you analyze constraints and implement an optimal O(m x n) solution, boosting your problem-solving skills for coding interviews.

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[m1][n1]grid[m-1][n-1] ...