Check if Grid can be Cut into Sections | Merge Intervals | Leetcode 3394 | Leetcode 56 | Detailed
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Hi Everyone, this is the 147th video of our Playlist "Arrays 1D/2D : Popular Interview Problems".
Now we will be solving a good array problem based on intervals - Check if Grid can be Cut into Sections | Merge Intervals | Leetcode 3394 | Leetcode 56 | codestorywithMIK
We will do dry runs as well for each approach for better understanding and visualizing.
Problem Name : Check if Grid can be Cut into Sections | Merge Intervals | Leetcode 3394 | Leetcode 56 | codestorywithMIK
Company Tags : will update later
Code Github(C++ & JAVA) (Leetcode - 3394) - https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Arrays/Intervals_Based_Qn/Check if Grid can be Cut into Sections.cpp
Code Github(C++ & JAVA) (Leetcode - 56) - https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Arrays/Intervals_Based_Qn/Merge Intervals.cpp
Leetcode Link (Leetcode - 3394) : https://leetcode.com/problems/check-if-grid-can-be-cut-into-sections
Leetcode Link (Leetcode - 56) : https://leetcode.com/problems/merge-intervals/description/
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Video Summary :
Leetcode - 3394 (Rectangle Cuts Validation using Merging Intervals)
This approach solves the problem of determining whether a given set of rectangles can be cut into at least three distinct segments along either the x-axis or y-axis. It does this by extracting the horizontal and vertical interval ranges of the rectangles and using an interval merging algorithm. If the merged intervals on either axis result in three or more segments, the function returns true; otherwise, it returns false.
Leetcode - 56 (Merging Overlapping Intervals)
This approach merges overlapping intervals efficiently. It first sorts the intervals based on their start values, then iterates through them while merging overlapping ones. If the current interval overlaps with the last added interval in the result list, it merges them by updating the endpoint. Otherwise, it adds a new interval. This ensures a consolidated set of non-overlapping intervals.
✨ Timelines✨
00:00 - Introduction
0:18 - Motivation
0:50 - Problem Explanation
6:08 - Thought Process
23:10 - Story Points
24:53 - Merge Intervals
35:51 - Coding Leetcode 56
39:53 - Coing Leetcode 3394
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