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Grokking the Coding Interview Patterns in Go

Solution: Next Permutation

Explore how to compute the next permutation of an integer array by identifying pivot and successor elements using a two-pointer approach. This lesson helps you understand in-place rearrangement with constant extra space and efficient time complexity, essential for coding interviews.

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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]. In the same way, [5,6,4][5, 6, 4] becomes [6,4,5][6, 4, 5] ...