Permutations - leetcode 46 - Recursive

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Today we will solve the "Permutations" problem from #leetcode. We will walk through a recursive solution in order to solve this Problem.

This question has been asked by Amazon, Google, Apple, Bloomberg, Microsoft, Facebook, Uber, and so many other companies.

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Chapters:
0:00 Intro and question
0:09 Examples
0:59 The Math Rule for Permutations
1:48 Recursive solution
4:00 Code walkthrough
7:10 Time and Space Complexity
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