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414. Third Maximum Number 第三大的数字

时间:2017-08-05 20:31:36      阅读:134      评论:0      收藏:0      [点我收藏+]

标签:lis   line   solution   amp   input   family   max   int   ide   

Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexity must be in O(n).

Example 1:

Input: [3, 2, 1]

Output: 1

Explanation: The third maximum is 1.

Example 2:

Input: [1, 2]

Output: 2

Explanation: The third maximum does not exist, so the maximum (2) is returned instead.

Example 3:

Input: [2, 2, 3, 1]

Output: 1

Explanation: Note that the third maximum here means the third maximum distinct number.
Both numbers with value 2 are both considered as second maximum.

  1. class Solution(object):
  2. def thirdMax(self, nums):
  3. """
  4. :type nums: List[int]
  5. :rtype: int
  6. """
  7. s = set(nums)
  8. if(len(s) > 2):
  9. s.remove(max(s))
  10. s.remove(max(s))
  11. return max(s)
  12. else:
  13. return max(s)





414. Third Maximum Number 第三大的数字

标签:lis   line   solution   amp   input   family   max   int   ide   

原文地址:http://www.cnblogs.com/xiejunzhao/p/7291232.html

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