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Why does the bottom up solution here start with startIndex at n - 1 instead of 0...

Gary

May 13, 2022

Why does the bottom up solution here start with startIndex at n - 1 instead of 0, like in the Longest Common Substring/Subsequence problems in chapter 6?

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George 3 years ago

Good question. You can go from 0 to n - 1 as well. The goal is to fill out the top right half of the 2D DP array. The method shown populates the top right half from left-to-right, bottom-to-top,

To do this from 0 to n - 1, the outer loop would represent the end indices...

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