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MyLeetcodeSolutions

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137. 只出现一次的数字 II

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4 lines (4 loc) · 116 Bytes

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MyLeetcodeSolutions

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137. 只出现一次的数字 II

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4 lines (4 loc) · 116 Bytes

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class Solution:

def singleNumber(self, nums):

return (3 * sum(set(nums)) - sum(nums)) // 2

# set求差

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