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How to modify System.arraycopy ?
public static native void arraycopy(Object src, int src_position, Object dst, int dst_position, int length);
My object contain two parameters (int x, char y)
i want to increment all "x" elements each time i copy my array .
actually i copy with O(n) and next i increment with also O(n) this decrease the performance !!!
if we can modifiy arraycopy to copy and increment element by element the complexity will be O(n).
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Re: How to modify System.arraycopy ?
The complexity however you do it is O(n) - you've got to loop over the array somehow.
Systems.arraycopy is nativeif we can modifiy arraycopy to copy and increment element by element
Re: How to modify System.arraycopy ?
Just to back up copeg's points about the O(n),
If you look at the way you listed it, it was going to be O(2n), in Big-O notation we are not interested in that 2 as it is insignificant. Thus as copeg pointed out it will still be O(n)! He is quite right saying that it will also be O(n) best case.
Chris
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