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Solution: Next Permutation

Explore how to compute the next lexicographical permutation of an integer array using an efficient two-pointer technique. Learn to identify the pivot and successor elements, swap them, and reverse the suffix to achieve the correct next permutation. This lesson helps you solve permutation problems in-place with optimal time and space complexity.

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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  ...