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Grokking the Coding Interview Patterns in Go

Next Permutation

Explore how to compute the next lexicographically greater permutation of an integer array using the two pointers technique. Understand the in-place rearrangement process that requires constant extra space, and practice solving this common interview problem.

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Statement

Your task is to rearrange an array, nums, containing positive integers to form the next lexicographically greater permutationA permutation of an array of integers refers to any ordering of its elements into a sequence or linear arrangement.. This means finding the next permutation in the sequence of all possible arrangements sorted in dictionary order.

For example, given the array [4,5,6][4, 5, 6], the next permutation is [4,6,5][4, 6, 5] ...