leetcode-note
Introduction
how-to-come-up-with-algorithm
知識
Hash Table
Java Class & Interface
Java knowledge scope
Memory (Heap v.s. Stack)
Singleton 設計模式
Recursive, Recursion, Recurrence
Java - Garbage collection
Java Inheritance
Java Unit testing
Java - Why StringBuilder is faster than String
Java Priority Queue Comparator
Merge Sort Implementation
Iterate Map
工具
Interview SOP
Array
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Backtracking
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Binary Tree
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Binary Indexed Tree
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Binary Search
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Bit Manipulation
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Depth-First Search
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Design
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Divide and Conquer
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Dynamic Programming
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Hash Table
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Heap
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Graph
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Greedy
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Linked List
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# 2
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Math
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String
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Two Pointer
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Reservoir Sampling
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Union Find
# 305
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Recursive, Recursion, Recurrence
Recursive function 理解
Concept
可以看看這篇文章
思考重點
一定要有一個停止遞迴的base case
遞迴的每次呼叫都讓問題變得更小更簡單，不斷往base case逼近
Time complexity
GeeksforGeeks有一篇
不錯的教學
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