摘要：
1. Install at https://git-scm.com/downloads 2. Set up your name and email $ git config --global user.name "Johnsonxiong" $ git config --global user.em 阅读全文
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[LeetCode] 93. Restore IP Addresses_Medium tag: backtracking
2019-07-09 10:15 by Johnson_强生仔仔, 292 阅读, 收藏,
摘要：
Given a string containing only digits, restore it by returning all possible valid IP address combinations. Example: Input: "25525511135" Output: ["255 阅读全文
[LeetCode] 577. Employee Bonus_Easy tag: SQL
2018-08-20 10:34 by Johnson_强生仔仔, 289 阅读, 收藏,
摘要：
Select all employee's name and bonus whose bonus is < 1000. Table:Employee Table: Bonus Example ouput: # 不能直接用JOIN, 相当于inner join, 如果bonus没有的, 那么就没有了, 阅读全文
[LeetCode] 129. Sum Root to Leaf Numbers_Medium tag: DFS
2018-08-08 00:40 by Johnson_强生仔仔, 289 阅读, 收藏,
摘要：
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 whic 阅读全文
[Java] public, private, final and basic rules for naming.
2018-12-12 04:00 by Johnson_强生仔仔, 288 阅读, 收藏,
摘要：
1. Access: public, private, protected public: Any other class can access a public field or method. (Further, other classes can modify public fields un 阅读全文
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