Next Permutation at Infosys

Problem Description

A **permutation** of an array of integers is an arrangement of its members into a sequence or linear order. * For example, for `arr = [1,2,3]`, the following are all the permutations of `arr`: `[1,2,3], [1,3,2], [2, 1, 3], [2, 3, 1], [3,1,2], [3,2,1]`. The **next permutation** of an array of i...

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