Скачать или смотреть Return all permutations of a list | Java Coding Solution

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This tutorial walks through solving permutations step by step, giving you the tools to confidently tackle similar coding interview questions.

0:00 – Intro to the problem
0:42 – Why input type matters
1:26 – Recursive approach explained
2:19 – String-based implementation
9:59 – Moving to integer arrays
12:02 – Using pointers and swaps
16:41 – Base case and cloning arrays
22:05 – Walking through test example

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