Minimum Operations to Make a Uni-Value Grid | Detailed Simple Maths Proof | Leetcode 2033 | MIK
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Hi Everyone, this is the 23rd video of our Playlist "Dynamic Programming : Popular Interview Problems".
In this video we will solve a very good DP Problem - Minimum Operations to Make a Uni-Value Grid | Detailed Simple Maths Proof | Leetcode 2033 | codestorywithMIK
Problem Name : Minimum Operations to Make a Uni-Value Grid | Detailed Simple Maths Proof | Leetcode 2033 | codestorywithMIK
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My solutions on Github(C++ & JAVA) - https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Mathematical/Minimum Operations to Make a Uni-Value Grid.cpp
Leetcode Link : https://leetcode.com/problems/minimum-operations-to-make-a-uni-value-grid
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Video Summary :
The approach flattens the 2D grid into a list and finds the median value after sorting. It then checks if all elements in the grid have the same remainder when divided by x, ensuring they can be made equal using the given operation. Finally, it calculates the minimum operations required by summing the steps needed to reach the median. If transformation is impossible, it returns -1.
✨ Timelines✨
00:00 - Introduction
0:21 - Motivation
0:37 - Problem Explanation
2:12 - Detailed Thought Process. Why Median ?
10:49 - Mathematical Proof
21:38 - Negative Example
24:21 - Coding it up
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