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Combinations

Explore how to solve combination problems using backtracking by generating all possible sets of k numbers from a given range. Learn to recognize the unordered nature of combinations and apply strategic methods to efficiently address this common coding interview challenge.

Statement

You are given two integers, n and k. Your task is to return all possible combinations of k numbers chosen from the range [1, n].

The result can be returned in any order.

Note: Combinations are unordered, i.e., [1, 2] and [2, 1] are considered the same combination.

Constraints:

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