Water the plants | Intuition Explained | Similar Problem | GfG POTD
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This is the 25th Video of our Playlist "Greedy Technique : Popular Interview Problems".
In this video we will try to solve a good and famous interview problem - Water Plants (GFG POTD)
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 : Water the plants
Company Tags : Microsoft
My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Greedy/Water%20the%20plants.cpp
GfG Link : https://www.geeksforgeeks.org/problems/water-the-plants--170646/1
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 : The goal is to find the minimum number of sprinklers needed to cover the entire gallery. The algorithm creates a vector of pairs representing the left and right boundaries of each sprinkler's coverage. It then sorts this vector based on the left boundary. The algorithm iterates through the sorted vector to determine the minimum number of sprinklers needed by considering the coverage of each sprinkler and updating the coverage range accordingly. If it's not possible to cover the entire gallery, the function returns -1. Otherwise, it returns the minimum number of sprinklers required.
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✨ Timelines✨
00:00 - Introduction
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