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Grokking the Coding Interview Patterns

Next Permutation

Understand how to rearrange an array of positive integers into the next lexicographically greater permutation using the two pointers technique. This lesson guides you through solving the problem in-place with constant memory, helping you master a key pattern often tested in 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] ...