## How Many Envelopes Can You Fit Into Another?

Question: How many envelops can you fit into another? Each envelope has a 2D representation. [4,5] -> width = 4, length = 5 How many envelops can you fit into one another without rotating any envelopes. Bare in mind you canβt fit in two evelopes with same width or height. This is question is very much like a Russian Doll question. Which that question itself uses an Longest increasing subsequence algorithm to solve....