Reverse First K elements of Queue | Simple | Intuitive | Amazon | GfG POTD
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This is the 1st Video of our Playlist "Queue : Popular Interview Problems".
In this video we will try to solve a good practice problem - Reverse First K elements of Queue
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 : Reverse First K elements of Queue
Company Tags : AMAZON
My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Queue/Reverse%20First%20K%20elements%20of%20Queue.cpp
GfG Link : https://www.geeksforgeeks.org/problems/reverse-first-k-elements-of-queue/1
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 : Simply pop first starting k elements from the queue into a stack or a vector in case of JAVA for passing all Test cases. I thought of stack because when they are popped they are in reversed order. Now, pop k elements from the stack and push in the queue. After that, pop the remaining n-k elements form queue and push it in the same queue so that they come to the rear of the queue like before.
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✨ Timelines✨
00:00 - Introduction
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