刷题到现在总结的知识点 DS + Algorithm, 求大米

刷了200多题，总结了一下涉及的data structure和algorithm

新人求大米

Basic Math:

·        Permutation

·        Combination

·        GreatestCommon Divisor:  

·        Rationalnumbers: any number can be expressed as fraction of two integers

Boolean Operators (and, or, &&, ||)vs. Bitwise Operators (&, |)

·        Boolean operators are usually usedon boolean values but bitwise operators are usually usedon integer values.

·        Boolean operatorsare short-circuiting but bitwise operators are not short-circuiting.

·        Bitwise operators have a higher precedence thanBoolean operators

Regex

Algorithm – Two pointer

Algorithm – Sliding Window

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