摘要：
Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]). Y 阅读全文
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[Java in NetBeans] Lesson 03. More Variables / Type Casting
2018-10-25 06:11 by Johnson_强生仔仔, 197 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： It is different from python, that "1" only present string "1", and '1' only presents char '1'. (type) can chang the type 阅读全文
[LeetCode] 701. Insert into a Binary Search Tree_Medium_tag: Binary Search Tree
2019-11-17 03:46 by Johnson_强生仔仔, 196 阅读, 收藏,
摘要：
Given the root node of a binary search tree (BST) and a value to be inserted into the tree, insert the value into the BST. Return the root node of the 阅读全文
[LeetCode] 830. Positions of Large Groups_Easy tag: Two Pointers
2018-08-20 03:56 by Johnson_强生仔仔, 196 阅读, 收藏,
摘要：
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the g 阅读全文
[LeetCode] 196. Delete Duplicate Emails_Easy tag: SQL
2018-08-17 00:46 by Johnson_强生仔仔, 196 阅读, 收藏,
摘要：
Write a SQL query to delete all duplicate email entries in a table named Person, keeping only unique emails based on its smallest Id. + + + | Id | Ema 阅读全文
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