Can you solve this real interview question? Permutations - Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order.

Permutations II - Given a collection of numbers, nums, that might contain duplicates, return all possible unique permutations in any order. Example 1: Input: nums = [1,1,2] Output: [[1,1,2], [1,2,1], [2,1,1]] Example 2: Input: nums = [1,2,3] Output: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]] Constraints: * 1 <= nums.length <= 8 * -10 ...

Next Permutation - 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].

Permutation Sequence - The set [1, 2, 3, ..., n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order, we get the following sequence for n = 3: 1. "123" 2. "132" 3. "213" 4. "231" 5. "312" 6. "321" Given n …

Can you solve this real interview question? Permutations - Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order.

Permutation in String - Given two strings s1 and s2, return true if s2 contains a permutation of s1, or false otherwise. In other words, return true if one of s1's permutations is the substring of s2.

Count Vowels Permutation - Given an integer n, your task is to count how many strings of length n can be formed under the following rules: * Each character is a lower case vowel ('a', 'e', 'i', 'o', 'u') * Each vowel 'a' may only be followed by an 'e'.

Given a collection of numbers, nums, that might contain duplicates, return all possible unique permutations in any order. Example 1: Input: nums = [1,1,2] Output: [[1,1,2], [1,2,1], [2,1,1]]

Decode XORed Permutation - There is an integer array perm that is a permutation of the first n positive integers, where n is always odd. It was encoded into another integer array encoded of length n - 1, such that encoded[i] = perm[i] XOR perm[i + 1].

Permutation Difference between Two Strings - You are given two strings s and t such that every character occurs at most once in s and t is a permutation of s. The permutation difference between s and t is defined as the sum of the absolute difference between the index of the occurrence of each character in s and the index of the occurrence of ...