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Chaves: 4 3 1 9 6 8 5 10 13 7 14 2 18 19 11 20

Árvore-B com 3 chaves por página. Chaves: 4 3 1 9 6 8 5 10 13 7 14 2 18 19 11 20. Chaves:. 4. 4. Chaves:. 4 3. 4. Chaves:. 4 3. 3. 4. Chaves:. 4 3 1. 3. 4. Chaves:. 4 3 1. 1. 3. 4. Chaves:. 4 3 1 9. 1. 3. 4. Chaves:. 4 3 1 9. 4. 9. 1. 3. Chaves:. 4 3 1 9. 4.

benedict-cooke
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Chaves: 4 3 1 9 6 8 5 10 13 7 14 2 18 19 11 20

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  1. Árvore-B com 3 chaves por página Chaves: 4 3 1 9 6 8 5 10 13 7 14 2 18 19 11 20

  2. Chaves: 4 4

  3. Chaves: 4 3 4

  4. Chaves: 4 3 3 4

  5. Chaves: 4 3 1 3 4

  6. Chaves: 4 3 1 1 3 4

  7. Chaves: 4 3 1 9 1 3 4

  8. Chaves: 4 3 1 9 4 9 1 3

  9. Chaves: 4 3 1 9 4 1 3 9

  10. Chaves: 4 3 1 9 6 4 1 3 9

  11. Chaves: 4 3 1 9 6 4 1 3 6 9

  12. Chaves: 4 3 1 9 6 8 4 1 3 6 9

  13. Chaves: 4 3 1 9 6 8 4 1 3 6 8 9

  14. Chaves: 4 3 1 9 6 8 5 4 1 3 6 8 9

  15. Chaves: 4 3 1 9 6 8 5 4 1 3 5 6 8 9

  16. Chaves: 4 3 1 9 6 8 5 4 8 1 3 5 6 9

  17. Chaves: 4 3 1 9 6 8 5 10 4 8 1 3 5 6 9

  18. Chaves: 4 3 1 9 6 8 5 10 4 8 1 3 5 6 9 10

  19. Chaves: 4 3 1 9 6 8 5 10 13 4 8 1 3 5 6 9 10

  20. Chaves: 4 3 1 9 6 8 5 10 13 4 8 1 3 5 6 9 10 13

  21. Chaves: 4 3 1 9 6 8 5 10 13 7 4 8 1 3 5 6 9 10 13

  22. Chaves: 4 3 1 9 6 8 5 10 13 7 4 8 1 3 5 6 7 9 10 13

  23. Chaves: 4 3 1 9 6 8 5 10 13 7 14 4 8 1 3 5 6 7 9 10 13

  24. Chaves: 4 3 1 9 6 8 5 10 13 7 14 4 8 1 3 5 6 7 14 9 10 13

  25. Chaves: 4 3 1 9 6 8 5 10 13 7 14 4 8 13 1 3 5 6 7 14 9 10

  26. Chaves: 4 3 1 9 6 8 5 10 13 7 14 2 4 8 13 1 3 5 6 7 14 9 10

  27. Chaves: 4 3 1 9 6 8 5 10 13 7 14 2 4 8 13 1 2 3 5 6 7 14 9 10

  28. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 4 8 13 1 2 3 5 6 7 14 9 10

  29. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 4 8 13 1 2 3 5 6 7 18 14 9 10

  30. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 4 8 13 1 2 3 5 6 7 18 14 9 10

  31. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 4 8 13 1 2 3 5 6 7 18 19 14 9 10

  32. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 11 4 8 13 1 2 3 5 6 7 18 19 14 9 10

  33. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 11 4 8 13 1 2 3 5 6 7 18 19 14 9 10 11

  34. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 11 20 4 8 13 1 2 3 5 6 7 18 19 14 9 10 11

  35. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 11 20 4 8 13 1 2 3 5 6 7 18 19 14 20 9 10 11

  36. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 11 20 4 8 13 19 1 2 3 5 6 7 18 14 20 9 10 11

  37. Chaves: 4 3 1 9 6 8 5 10 13 7 142 18 19 11 20 FIM! 13 4 8 19 1 2 3 5 6 7 18 14 20 9 10 11

  38. Estrutura das páginas RRN 2 K D H 0 3 8 5 E B C G I J L M A chaves filhos 3 D H K 0 3 8 5 Página 2 contador de chaves 2 E G NIL NIL NIL NIL Página 3

  39. FUNCTION busca (RRN, CHAVE, ACHEI-RRN, ACHEI-POS) if RRN = NIL then /* para a recursão */ return NAO-ACHEI else carregue a página indicada por RRN em PAGE procure a CHAVE em PAGE POS = posição onde CHAVE ocorre ou devia ocorrer if CHAVE encontrada then ACHEI-RRN = RRN ACHEI-POS = POS return ACHEI else /* desçe um nível na direção do FILHO */ return(busca(PAGE.FILHO[POS], CHAVE, ACHEI-RRN, ACHEI-POS)) endif endif end FUNCTION

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