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DIY: Next Permutation

Explore how to implement the nextPermutation function to generate the next lexicographically greater arrangement of numbers. This lesson guides you through solving the problem efficiently with in-place changes and constant memory, strengthening your algorithm skills in preparation for coding interviews.

Problem statement

Given a list of numbers, you have to rearrange these numbers into the next lexicographically greater permutation of numbers. If such an arrangement is not possible, you must ...