出个全新的hhkb type-s键盘 - 未名空间MITBBS历史存档

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出个全新的hhkb type-s键盘

出个全新的hhkb type-s键盘# Hardware - 计算机硬件

c*22013-12-21 08:12

1 楼

Write a function for a linked list that exchanges the positions
of the nodes after the nodes referenced by two given pointers t and u.
(assume t and u are either in the list or NULL).
Example:
1 2 4 3 6 8 5 7 9 10
Exchange nodes after 2 and 3:
1 2 6 3 4 8 5 7 9 10
1) Don't do it by exchanging data.
2) Consider all possible cases.

t*u2013-12-21 08:12

2 楼

t*z2013-12-21 08:12

3 楼

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http://elitekeyboards.com/products.php?sub=pfu_keyboards,hhkbpr

t*d2013-12-21 08:12

4 楼

what can be all all possible cases? all u,t, u,next() and t.next() have to
be not null, otherwise this function has no meaning.
so
if (t == null || u == null ) throw new NullPointerException();
if (t == u) return;
linkedList tnext = t.next();
linkedList unext = u.next();
if (tnext == null || unext == null ) throw new NullPointerException();
t._next = unext;
u._next = tnext;
linkedList temp = tnext.next();
tnext._next = unext.next();
unext._next = temp;