42tokyo-push_swap-data_structure

Transcript

1. PUSH_SWAP
   PUSH_SWAP
   

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2. push_swap
   

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3. push_swap
   

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4. 1.
   2.
   3.
   

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5. View Slide

6. View Slide

7. View Slide

8. View Slide

9. ( )
   ...
   

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10. View Slide

11. LOOP
    

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13. 3 6 4 2 5 1
    a[0] a[1] a[2] a[3] a[4] a[5]
    stack A
    malloc
    ./push_swap 3 6 4 2 5 1
    

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14. 6 4 5
    a[0] a[1] a[2] a[3] a[4] a[5]
    3 2 1
    b[0] b[1] b[2] b[3] b[4] b[5]
    stack A
    stack B
    malloc
    B
    

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15. View Slide

16. push / rotate
    

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17. push
    3 4 5 6
    a[0] a[1] a[2] a[3] a[4] a[5]
    2 1
    b[0] b[1] b[2] b[3] b[4] b[5]
    stack A
    stack B
    push
    stack A
    push
    stack B
    pa
    

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18. push / rotate
    LOOP
    

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19. View Slide

20. A F
    NULL
    B C D E
    

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21. 3
    b
    1
    NULL
    6
    c
    4
    d
    2
    e
    5
    f
    ./push_swap 3 6 4 2 5 1
    a b c d e f
    malloc malloc malloc malloc malloc malloc
    t_list t_node
    head num
    next
    

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23. push
    1
    NULL
    stack A
    stack B
    3
    c
    6
    NULL
    4
    e
    2
    f
    5
    b
    a b
    c
    d
    e
    head : a
    head : d
    f
    pa
    

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24. push
    1
    NULL
    stack A
    stack B
    3
    c
    6
    NULL
    4
    e
    2
    a
    5
    b
    a b
    c
    d e
    f
    head : d
    head : f
    f
    

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25. View Slide

26. rotate
    next
    

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27. rotate
    1
    d
    stack A
    stack A
    3
    c
    6
    d
    4
    e
    2
    NULL
    5
    b
    a b
    c d
    e
    head : a
    head : d
    f
    rra
    1
    NULL
    3
    c
    6
    d
    4
    e
    5
    b
    a b
    c e f
    2
    a
    d
    

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28. rotate
    LOOP
    

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29. View Slide

30. View Slide

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32. NULL
    1 6
    NULL
    2 3 4 5
    

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33. NULL
    3
    b
    e
    1
    NULL
    a
    6
    c
    b
    4
    d
    c
    2
    e
    d
    5
    f
    ./push_swap 3 6 4 2 5 1
    a b c d e f
    malloc malloc malloc malloc malloc malloc
    t_list t_node
    head
    tail
    num
    next
    prev
    

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34. rotate
    NULL
    3
    c
    b
    1
    d
    e
    6
    f
    a
    4
    e
    f
    2
    NULL
    c
    5
    b
    a b
    c d
    e f
    d
    3
    c
    b
    1
    NULL
    e
    6
    f
    a
    4
    e
    NULL
    2
    a
    c
    5
    b
    a b
    c
    d e f
    stack A
    stack A
    head : a
    tail : d
    head : d
    tail : f
    rra
    tail -> prev
    

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35. LOOP
    

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36. View Slide

37. (
    ...)
    " "
    

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38. View Slide

39. View Slide