摘要：
Given a table salary, such as the one below, that has m=male and f=female values. Swap all f and m values (i.e., change all f values to m and vice ver 阅读全文
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[LeetCode] 295. Find Median from Data Stream_hard tag: Heap Need to update the follow up question?
2019-06-13 09:49 by Johnson_强生仔仔, 212 阅读, 收藏,
摘要：
Median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two 阅读全文
[Java in NetBeans] Lesson 01. Java Programming Basics
2018-10-19 22:22 by Johnson_强生仔仔, 212 阅读, 收藏,
摘要：
这个课程的参考视频在youtube。 主要学到的知识点有： A class is the template from which objects are created. Object: Instance of a class. public can be accessed by other cla 阅读全文
[LeetCode] 138. Copy List with Random Pointer_Medium tag: Linked List
2019-05-04 11:06 by Johnson_强生仔仔, 211 阅读, 收藏,
摘要：
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return a deep copy 阅读全文
[Python] Frequently used method or solutions for issues
2018-11-16 12:09 by Johnson_强生仔仔, 211 阅读, 收藏,
摘要：
Web Scraping爬虫 for Mac urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:581)> Solution: if 1) 阅读全文
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