Can somebody clarify the problem?

  • 0

    The problem says "the same repeated number could be used unlimited times", which means the non-same repeated numbers can't be reused. It also says no duplicate compbinations allowed.

    However, given the test case

    The judge gives answer[[2,3],[2,3],[2,3]]. Is this correct?

  • 1

    Problem says, given a SET.

    A set does not contain duplicates. So your test case is invalid.

    Your test case is valid for Combinational Sum II, where it says "given a collection...".

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