Minimum Domino Rotations For Equal Row | Important Lesson | Dry Run |Leetcode 1007 |codestorywithMIK

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Published on May 3, 2025 4:09:48 AM ● Video Link: https://www.youtube.com/watch?v=R4qAV4rjTc4

Duration: 0:00

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Hi Everyone, this is the 40th video of our Playlist "Greedy Technique : Popular Interview Problems".
Now we will be solving a very good greedy based problem - Minimum Domino Rotations For Equal Row | Important Lesson | Complete Dry Run | Leetcode 1007 | codestorywithMIK

I will explain it in full detail so that it becomes easy to understand. We will find the reason behind everything so that we understand why we did what we did.
And we will do a complete dry run

Problem Name : Minimum Domino Rotations For Equal Row | Important Lesson | Complete Dry Run | Leetcode 1007 | codestorywithMIK
Company Tags : GOOGLE
Code Github(C++ & JAVA) - https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Greedy/Minimum Domino Rotations For Equal Row.cpp
Leetcode Link : https://leetcode.com/problems/minimum-domino-rotations-for-equal-row/


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Video Summary :
The problem is to make all values in either the top or bottom row of dominoes equal using the minimum number of swaps. Since each domino has values from 1 to 6, we try each possible value (1 to 6) and check if it's possible to make all elements in one row equal to that value. For each candidate value, we count how many swaps are needed to align either the top or bottom row. Among all valid values, we return the minimum number of swaps needed.

✨ Timelines✨
00:00 - Introduction
0:21 - Motivation
0:49 - Problem Explanation
6:04 - Very Important Lesson
9:01 - Applying our Lesson
9:54 - Complete Dry Run
15:04 - Story To Code
19:40 - Optimizing to one pass
22:20 - Coding it up

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