¿ª·¢Android APPÐèҪѧϰʲôÓïÑÔ?

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¿ª·¢Android APPÐèҪѧϰʲôÓïÑÔ?
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objectMainextendsApp{
varreverse_pairs = 0//ÄæÐòÊý
defmsort[T](cmp:(T, T) = Boolean)(l:List[T]):List[T] = {
defmerge(l1:List[T], l2:List[T]):List[T]=(l1, l2)match{
case(Nil, _) = l2
case(_, Nil) = l1
case(x::left1, y::left2) =
if(cmp(x, y))
x::merge(left1, l2)
else{
reverse_pairs += l1.length
y::merge(l1, left2)
}
}
valn = l.length / 2
if(n == 0)
return l
else{
val(l1, l2) = l.splitAt(n)
merge(msort(cmp)(l1), msort(cmp)(l2))
}
}
println(msort((x:Int, y:Int) = xy)(List(5, 4, 3, 2, 7,6 )))
println(reverse_pairs)
}
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