python 简单遍历
数组中出现次数超过一半的数字
http://www.nowcoder.com/questionTerminal/e8a1b01a2df14cb2b228b30ee6a92163
有两种情况，要么存在要么不存在
class Solution:
def MoreThanHalfNum_Solution(self, numbers):
# write code here
if len(numbers) == 1:
return numbers[0]
num = None
for i in numbers:
if i == num:
return i
num = i
return 0
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