(This question has been seen in the interviews of the following companies: Tiktok)
Tiktok Online Assessment Questions 2023
[Paths on a Grid]
Given a grid, how many paths are there from (0,0) to (n, m)?
You can only move from (x,y) to (x,y+1) or (x+1,y).
For 60% data, 1<=n,m<=10
For 100% data, 1<=n,m<=30
...
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