Скачать или смотреть LeetCode 118: Pascal's Triangle - Interview Prep Ep 34

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LeetCode 118. Pascal's Triangle: https://leetcode.com/problems/pascals...

Solution explained:

1. We can build the solution from the very smallest array [1] up to numRows
2. Every time, we always add one to the head of the current list, and then reset the values in between to the correct ones by adding up the two nodes right above it, this is going from left to right.
3. Or, we could reset the values in between to the correct ones by adding up the two nodes right above it and then append one to the end of the row, this is going from right to left.

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