![LeetCode 380 (Medium): Insert Delete GetRandom O(1) | HashMap & ArrayList | Full Explanation [JAVA]](https://i.ytimg.com/vi/ZggtRpRJeVU/mqdefault.jpg)
![[Java] Leetcode 380. Insert Delete GetRandom O(1) [Design #2]](https://i.ytimg.com/vi/hru9opR7wG8/mqdefault.jpg)
![Insert Delete GetRandom O(1) | Day 12 | [June LeetCoding Challenge] [Leetcode #380] [2020]](https://i.ytimg.com/vi/yeTmZxk6-v4/mqdefault.jpg)
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Last Updated: October 16, 2026
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This video has the Problem Statement, This problem challenges you to design a data structure that supports neetcode.io/ - A better way to prepare for Coding Interviews Discord: discord.gg/ddjKRXPqtk Twitter: ... Please and to the channel. In this video, we will look into solving the problem to create a data structure where the ... 00:00 - Step-by-Step Explanation 07:13 - Coding In this video, we'll solve the " In this tutorial, I have discussed how we can implement In this video, I'm going to show you how to solve The day 12 problem in June Leetcoding Challenge. ( This video explains a very important design based programming interview problem which is to design a data structure where ... In this question, we need to implement RandomizedSet Class with following methods: Insert, Delete & GetRandom with O(1 ...
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