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8. Pascal's Triangle
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Problem Statement:

Write a Recursive Solution to Generate Pascal's Triangle.

Write a recursive function to generate Pascal's Triangle up to a given number of rows. Pascal's Triangle is a triangular array of binomial coefficients, where each number is the sum of the two numbers directly above it.

Example:

Sr#InputOutputExplanation
1numRows = 3[[1],[1,1],[1,2,1]]The first 3 rows of Pascal's Triangle are [[1],[1,1],[1,2,1]].
2numRows = 5[[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]]The first 5 rows of Pascal's Triangle are [[1],[1,1],[1,2,1],[1,3,3,1],[1,4,6,4,1]].
3numRows = 1[[1]]The first row of Pascal's Triangle is [[1]].

Constraints:

  • 1 <= numRows <= 30

Try it yourself

Try solving this question here:

Python3
Python3

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