Python implements 1, 2, 3, 4 constructs different three-digit numbers without repeated numbers - Code World

Python implements 1, 2, 3, 4 constructs different three-digit numbers without repeated numbers

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Python implements 1, 2, 3, 4 constructs different three-digit numbers without repeated numbers

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Question: There are 1, 2, 3, 4 numbers, how many three-digit numbers that are different from each other and have no repeated numbers can be formed? How much are they? --------Expand the input of four one-digit integers, and output the three-digit numbers

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