Convert an Array Into a 2D Array With Conditions | With Dry Run | Leetcode 2610
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This is the 79th Video of our Playlist "ARRAYS (1-D/2-D) Popular Interview Problems".
In this video we will try to solve a good practice problem - Convert an Array Into a 2D Array With Conditions (Leetcode - 2610)
I will explain the intuition so easily that you will never forget and start seeing this as cakewalk EASYYY.
We will do live coding after explanation and see if we are able to pass all the test cases.
Also, please note that my Github solution link below contains both C++ as well as JAVA code.
Problem Name : Convert an Array Into a 2D Array With Conditions
Company Tags : will update soon
My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Arrays/2-D%20Array/Convert%20an%20Array%20Into%20a%202D%20Array%20With%20Conditions.cpp
Leetcode Link : https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions/
My DP Concepts Playlist : https://youtu.be/7eLMOE1jnls
My Graph Concepts Playlist : https://youtu.be/5JGiZnr6B5w
My GitHub Repo for interview preparation : https://github.com/MAZHARMIK/Interview_DS_Algo
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Approach Summary : It uses a vector/map mp to store the frequency of each number and iterates through the input vector, updating the result matrix accordingly. If the frequency matches the current size of the result matrix, a new empty row is added, and the number is inserted into that row. The final result is a matrix grouping numbers by their frequency. Note: The commented-out code suggests an alternative approach using an unordered_map, but the provided implementation uses a vector for simplicity.
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✨ Timelines✨
00:00 - Introduction
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