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Grokking the Coding Interview Patterns in C++

Solution: Next Permutation

Explore how to compute the next lexicographically greater permutation of an integer array using the two pointers method. Understand the step-by-step process to find the pivot and successor elements, swap them, and reverse the suffix to achieve the next permutation efficiently and in-place under constant space.

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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  ...