leetcode hIndex implemented with python
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视频分析:
http://v.youku.com/v_show/id_XMTMyOTc5NjMwNA==.html
题干:
Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher’s h-index.
According to the definition of h-index on Wikipedia: “A scientist has index h if h of his/her N papers have at least h citations each, and the other N − h papers have no more than h citations each.”
For example, given citations = [3, 0, 6, 1, 5], which means the researcher has 5 papers in total and each of them had received 3, 0, 6, 1, 5 citations respectively. Since the researcher has 3 papers with at least 3 citations each and the remaining two with no more than 3 citations each, his h-index is 3.
Note: If there are several possible values for h, the maximum one is taken as the h-index.
代码:
class Solution(object): def hIndex(self, citations): """ :type citations: List[int] :rtype: int """ """sort citatiosn asc""" sortedcitations = sorted(citations) num=len(citations) h=num for index in range(num): if sortedcitations[index]>=h: return h else: h-=1 return h
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