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Grokking the Coding Interview Patterns in JavaScript

Next Greater Element I

Understand how to efficiently find the next greater element for elements in a subset array using a hash map approach. This lesson teaches you to map elements and their next greater numbers in another array, improving problem-solving skills for coding interviews. Practice implementing this pattern to strengthen your grasp on array manipulation and hash map usage.

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Statement

Given the two distinct integer arrays, nums1 and nums2, where nums1 is a subset of nums2, find all the next greater elements for nums1 values in the corresponding places of nums2.

In general, the next greater element of an element, xx, in an array is the first greater element present on the right side of xx in the same array. However, in the context of this problem, for each element xx ...