Good evening! Here's our prompt for today.
In a certain kind of pyramid, each number in a row is the sum of the two numbers directly above it (arranged in a triangular fashion).
Given an integer n, return the first of the n rows of the pyramid.
For example, if n = 5, then the first 5 rows of the pyramid will be represented in the array form as follows,
SNIPPET
1[[1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1]]Constraints
- 1 <=
n<= 30
Try to solve this here or in Interactive Mode.
How do I practice this challenge?
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var assert = require('assert');​function pyramidPuzzle(n) { return;}​try { assert.deepEqual(pyramidPuzzle(5), [ [1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1] ]); console.log('PASSED: ' + "`pyramidPuzzle(5)` should return `[[1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1]]`");} catch (err) { console.log(err);}​try { assert.deepEqual(pyramidPuzzle(1), [ [1] ]); console.log('PASSED: ' + "`pyramidPuzzle(1)` should return `[[1]]`");} catch (err) { console.log(err);}​try {OUTPUT
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