A deterministic finite automaton is represented formally by a 5-tuple (Q,Σ,δ,q0,F), where: Q is a finite set of states. Σ is a finite set of symbols, ...
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其他好文 时间:
2017-12-29 12:28:20
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205
一、概念概述 给定一个单词,判断该单词是否满足我们给定的单词描述规则,需要用到编译原理中词法分析的相关知识,其中涉及到的两个很重要的概念就是正规式(Regular Expression)和有穷自动机(Finite Automata)。正规式是描述单词规则的工具,首先要明确的一点是所有单词组成的是一个 ...
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编程语言 时间:
2017-11-28 17:19:05
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272
TypeScript’s discriminated union types (aka tagged union types) allow you to model a finite set of alternative object shapes in the type system. The c ...
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其他好文 时间:
2017-11-13 19:58:54
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180
1、Euler's continued fraction formula == The original formula ==[[Euler]] derived the formula as connecting a finite sum of products with a finite cont ...
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其他好文 时间:
2017-11-12 14:14:01
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332
Pictures worth a thousand unix commands and options: I draw this to my students each semester and they seem to grasp vi afterwards. vi is a finite sta ...
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系统相关 时间:
2017-10-20 14:11:36
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202
A two-grid discretization scheme of non-conforming finite elements for transmission eigenvalues ...
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其他好文 时间:
2017-10-20 10:05:31
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108
1 // 一个浮点数是否有效,首先要看其是否是一个数字(_isnan为0),其次还要看其是否超出了表示范围(_finite为0) 2 // 注意_finite是有限的意思 3 #include 4 CString strOut; 5 float f; 6 int nan, finite; 7 8 f... ...
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其他好文 时间:
2017-10-17 09:57:55
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197
LCS2 - Longest Common Substring II no tags no tags A string is finite sequence of characters over a non-empty finite set Σ. In this problem, Σ is the ...
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其他好文 时间:
2017-10-01 13:38:44
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245
LCS - Longest Common Substring A string is finite sequence of characters over a non-empty finite set Σ. In this problem, Σ is the set of lowercase let ...
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其他好文 时间:
2017-09-30 23:14:41
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393
Binary trees are defined recursively. A binary tree T is a structure defined on a finite set of nodes that either contains no nodes, or is composed of ...
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其他好文 时间:
2017-09-16 17:21:08
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225