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DIY: Monotonic Array

Explore how to identify monotonic arrays by writing a function that returns true if the input array is either monotone increasing or decreasing. This lesson helps you develop problem-solving skills useful for coding interviews by applying logic to real-world array 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. ...