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Grokking the Coding Interview Patterns in Python

Solution: Next Permutation

Explore how to efficiently find the next lexicographical arrangement of an array by identifying critical positions using two pointers. Learn to swap and reverse elements in-place to generate the next permutation while maintaining constant 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  ...