LeetCode 354 | Russian Doll Envelopes | Dynamic Programming
00:20 : Problem Explanation
01:30 : Sorting Approach
03:20 : Dynamic Programming Approach
05:30 : Code it up
12:00 : Time Comlexity Discussion
You are given a 2D array of integers envelopes where envelopes[i] = [wi, hi] represents the width and the height of an envelope.
One envelope can fit into another if and only if both the width and height of one envelope is greater than the width and height of the other envelope.
Return the maximum number of envelopes can you Russian doll (i.e., put one inside the other).
Note: You cannot rotate an envelope.
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