Permutations

Medium Loop with used[] LC 46 Pro

Return every ordering of the given distinct numbers. Any order is fine.

Examples

Example 1

Input:  nums = [1, 2, 3]
Output: [[1, 2, 3], [1, 3, 2], [2, 1, 3], [2, 3, 1], [3, 1, 2], [3, 2, 1]]

Example 2

Input:  nums = [0, 1]
Output: [[0, 1], [1, 0]]

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Item 17 of 44 · updated 2026-10-13