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编译原理复习题目集答案解?- 百度文库

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  • 2025/5/5 7:45:03

4 ʷ

صݣʽתΪDFA a ʽ->NFA

b NFA -> DFAӼ c DFA򣨷ָ Ŀ1μ⣺

a Ϊ R=(a|b)*(aa|bb)(a|b)* NFA

b NFADFA㷨

c

1

Ŀ2

4.7 1ʽӦDFA1(0|1)*101

1ʽתϵͳNFA

2תϵͳNFAȷԶDFA 3DFAС 𣺣11(0|1)*101ȼ۵ NFA

X 1(0|1)*101 Y 1 (0|1)* 1 0 1 X A B C D Y 0,1 1 1 0 1 X A B C Y

2NFAתDFAӼDFAÿ״̬ӦNFAһ״̬ϣ 0 1 X A A A AB AB AC AB AC A ABY ABY AC AB

XA⣬״̬

0 1 X A A A B

2

B C D C A C B D B 1M״ֳ̬ɷ̬̬{X,A,B,C}{D}

2ѰӼвȼ״̬{X,A,B,C}=>{X}{A,B}{C}=>{X}{A}{B}{C}ϲ DFA

0 0 1 X A 1 1 B 0 C 1

1 D 0

Ŀ3ϰ鱾ϰ4.7ο𰸼z4 鱾ϰ4.7.doc ֪ķG[S]

SaA|bQ AaA|bB|b BbD|aQ QaQ|bD|b EaB|bF FbD|aE|b 1 ڲɵȥEFصĶʽ 2 µG[S]NFA

3 NFAת S A B,Z Q D D,Z B a A A Q Q A A Q b Q B,Z D D,Z B D D 0 1 2 3 4 5 6 **01 1 3 3 1 1 3 3 2 4 5 6 4 4

4Ӽ״̬ϱ0̬*̬

a b 3

5ʹ÷ָDFA G

5.1 G={(0,1,3,4,6),(2,5)}// ֱΪ̬̬ 5.2 {0,1,3,4,6}a={1,3}{0,1,3,4,6}b={3,2,5,6,4}

{0,1,3,4,6}Ϊ {0,4,6}{1,3}G={(0,4,6),(1,3),(2,5)}

5.3 {0,4,6}b={3,6,4}֮Ϊ{0},{4,6}G={(0),(4,6),(1,3),(2,5)} 5.4 ۲G״̬ٷ֣ΪСDFA

6ֱ 0412״̬DFA״̬תͼ£

ӦСDFA

5 Զµ﷨ صݣLL1ķ

a ȥݹ

b LL1ķжfirstfollowselect c Ԥ

d ʹջԤ봮ķ

Ŀ1μ⣺ݹ+ж+ ʽķG

EE+TT TT*FF F(E)I

d봮i+i*i#

4

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4 ʷ صݣʽתΪDFA a ʽ->NFA b NFA -> DFAӼ c DFA򣨷ָ Ŀ1μ⣺ a Ϊ R=(a|b)*(aa|bb)(a|b)* NFA b NFADFA㷨 c 1 Ŀ2 4.7 1ʽӦDFA1(0|1)*101 1ʽתϵͳNFA 2תϵͳNFAȷԶDFA 3DFAС 𣺣11(0|1)*101ȼ۵ NFA X 1(0

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