Search⌘ K
AI Features

DIY: Monotonic Array

Understand how to identify monotonic arrays by implementing a function that returns true if an array is either entirely non-increasing or non-decreasing. This lesson helps you apply key problem-solving skills for coding interviews and familiarizes you with array-based challenges.

Problem statement

An array is monotonic if it is either monotone increasing or monotone decreasing.

An array, arr, is monotone increasing if arr[i] <= arr[i + 1] for every element at each index i. ...