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Grokking the Coding Interview Patterns in C++

Solution: Next Permutation

Explore how to rearrange an array to its next lexicographically greater permutation using a two pointers approach. Understand the step-by-step method to identify pivot and successor elements, perform swaps, and reverse array suffixes to efficiently solve this classic coding interview problem in C++.

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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] ...