題目描述

# -*- coding:utf-8 -*-
import collections
class Solution:
    # 這裡要特別注意~找到任意重複的一個值並賦值到duplication[0]
    # 函式返回True/False
    def duplicate(self, numbers, duplication):
        # write code here
        flag = False
        c = collections.Counter(numbers)
        for k,v in c.items():
            if v>1:
                flag = True
                duplication[0] = k
                break
        return flag