35. Matrix Path DP

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Input: m = 3, n = 7

Output: 28

Explanation: There are 28 unique paths from the top-left to the bottom-right corner of a 3x7 grid.

Input: m = 3, n = 2

Output: 3

Explanation: There are 3 unique paths from the top-left to the bottom-right corner of a 3x2 grid.

Time Complexity

O(mn)

Space Complexity

O(mn)