CSW-KMP알고리즘

Transcript

1. ޙ੗ৌ Ѩ࢝ ঌҊ્ܻ KMP ঌҊ્ܻ Knuth, Marris, Partt
2. ޙ੗ৌ Ѩ࢝ ޙઁ?
3. A B C D E F “ABC” ࠄޙ ଺ਵ۰ח ಁఢ
4. A B C D E F A B C ࠄޙ ଺ਵ۰ח ಁఢ “ABC”
5. A B C D E F A B C ࠄޙ ଺ਵ۰ח ಁఢ “ABC”
6. A B C D E F A B C ࠄޙ ଺ਵ۰ח ಁఢ “ABC”
8. ޙ੗ৌ Ѩ࢝ ঌҊ્ܻ KMP ঌҊ્ܻ Knuth, Marris, Partt
10. ੽فࢎ৬ ੽޷ࢎ Banana ੽فࢎ(prefix) ੽޷ࢎ(suffix) B Ba Ban Bana Banan Banana a na ana nana anana Banana 6ѐ 6ѐ
11. pi ߓৌ • pi[i]ח ઱য૓ ޙ੗ৌ੄ 0~i ө૑੄ ࠗ࠙ ޙ੗ৌ ઺ীࢲ prefix == suffix о 
 ؼ ࣻ ੓ח ࠗ࠙ ޙ੗ৌ ઺ীࢲ о੢ ӟ Ѫ੄ ӡ੉
12. i ࠗ࠙ ޙ੗ৌ pi[i] 0 A 0 1 AB 0 2 ABA 1 3 ABAA 1 4 ABAAB 2 5 ABAABA 3 6 ABAABAB 2 ޙ੗ৌ : “ABAABAB”
13. ݒடغח ӡ੉݃׮ ੽فࢎ৬ ੽޷ࢎо э਷ ࠗ࠙ ޙ੗ৌਸ ଺ইࢲ 
 Ӓ ӡ੉ ઺ о੢ ӟ ӡ੉ܳ ҳೞݶ য٣ࢲࠗఠ ఐ࢝ೡ૑ ੿ೡ ࣻ ੓׮.
15. ୊਺ ࠺Үೡ ٸ, ੌ஖೮؍ ࠗ࠙ޙ੗ৌ੄ ੿ࠁܳ ੉ਊೞৈ ࠛ೙ਃೠ ࠺Ү ૊, যରೖ ౣܾѦ ইח ࠗ࠙਷ Ѥցڪযߡܻח ਗܻ
16. KMP ঌҊ્ܻ ࣽࢲ
17. 1. ࠺Үೡ ؀࢚җ ଺ਵ۰ח ಁఢਸ ك׮.
18. 2. ੌࠗо ੌ஖ೞ૑ ঋਸ ҃਋, ࠛੌ஖ೠ ࠗ࠙ਸ ઁ৻ೠ ࠗ࠙ਸ ଺ח׮.
19. 3. ࠛੌ஖ೠ ࠗ࠙ਸ ઁ৻ೠ ૒੹ө૑ ੌ஖ೞח ಁఢীࢲ ୭؀ ӡ੉੄ ҃҅ܳ ଺ח׮. ҃҅ীࢲ ੽فࢎ, ੽޷ࢎܳ ౵ঈೠ׮. ABACABA
20. 4. ଺ਵ۰ח ಁఢਸ ੽޷ࢎ੄ द੘ৌө૑ ੉ز
21. Ѿۿ
22. ઑӘ੉ۄب ੌ஖ ೮঻׮ח ੿ࠁী ઱ݾೞҊ ޷ܻ ੹୊ܻ ೧ك pi ߓৌਸ ੉ਊ೧ࢲ ݆਷ ઺р दبܳ Ѥց ڬ ࣻ ੓ѱ ೣ.
23. दрࠂ੟بо ബਯ੸ਵ۽ ~