Neighboring Bitwise XOR | 2 Detailed Approaches | Dry Runs | Leetcode 2683 | codestorywithMIK
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Hi Everyone, this is the 25th video of our Playlist "Bit Manipulation : Popular Interview Problems".
We will solve a very good and interesting problem to practice bit Manipulation concepts - Neighboring Bitwise XOR | 2 Detailed Approaches | Dry Runs | Leetcode 2683 | codestorywithMIK
We will deep dive in minute details. The explanation will be detailed so that even beginners can understand it well.
Problem Name : Neighboring Bitwise XOR | 2 Detailed Approaches | Dry Runs | Leetcode 2683 | codestorywithMIK
Company Tags : will update later
Github Solutions Link (C++/Java) : https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Bit_Magic/Neighboring Bitwise XOR.cpp
Leetcode Link : https://leetcode.com/problems/neighboring-bitwise-xor/description/
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Video Summary :
Approach 1: Simulation (Starting with 0 and 1)This approach simulates the construction of the original array by trying both possible
starting values (0 and 1) for the first element. It reconstructs the array using the XOR operation and checks if the last element
satisfies the condition with the first.
Approach 2: XOR Property ObservationThis approach leverages the property that the XOR of all elements in the derived array
must equal 0 for a valid original array to exist. It eliminates the need for array reconstruction, making it more space-efficient.
Timelines
00:00 - Introduction
00:26 - Motivation
02:03 - Problem Explanation
08:02 - Approach-1 Thought Process
28:19 - How to build original array
31:21 - Coding Approach-1 in Cpp
34:37 - Coding Approach-1 in JAVA
36:39 - Approach-2 Thought Process
45:57 - Coding Approach-2 in Cpp
46:34 - Coding Approach-2 in JAVA
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