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Algorithm15: split-I(𝑙𝑖𝑠𝑡)
Requires : a list 𝒍𝒊𝒔𝒕;
Returns : a pair of shorter lists 𝑙𝑖𝑠𝑡1 and 𝑙𝑖𝑠𝑡2 that contain the same elements as list.
1: if isEmpty(𝒍𝒊𝒔𝒕) then
2: return (Nil, Nil)
3: else
4: let (𝐿1, 𝐿2) = split-I(tail(𝒍𝒊𝒔𝒕))
5: return (Cons(value(list), 𝐿2), 𝐿1)
6: endif
Requires : a list 𝒍𝒊𝒔𝒕;
Returns : a pair of shorter lists 𝑙𝑖𝑠𝑡1 and 𝑙𝑖𝑠𝑡2 that contain the same elements as list.
1: if isEmpty(𝒍𝒊𝒔𝒕) then
2: return (Nil, Nil)
3: else
4: let (𝐿1, 𝐿2) = split-I(tail(𝒍𝒊𝒔𝒕))
5: return (Cons(value(list), 𝐿2), 𝐿1)
6: endif
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fengyunSmlie Mar 30, 2016
一堆这个𝒍𝒊𝒔𝒕 无力。。
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