Number of Laser Beams in a Bank | Clear Explanation | Dry Run | Amazon | Leetcode 2125
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This is the 31st Video of our Playlist "Strings : Popular Interview Problems".
In this video we will try to solve a good practice problem - Number of Laser Beams in a Bank (Leetcode - 2125)
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 : Number of Laser Beams in a Bank
Company Tags : Amazon
My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/strings/Number%20of%20Laser%20Beams%20in%20a%20Bank.cpp
Leetcode Link : https://leetcode.com/problems/number-of-laser-beams-in-a-bank/
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 : The algorithm iterates through each string in the bank, counting the number of devices in each string and accumulating the product of the current device count and the previous device count. The result represents the total number of connections in the bank. The approach utilizes nested loops to traverse the bank and efficiently compute the required sum while keeping track of the previous device count.
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✨ Timelines✨
00:00 - Introduction
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