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Algorithm Analysis Question

Pavan Kumar Dittakavi
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Joined: Feb 12, 2011
Posts: 104

Hi Guys,

If I have a method which has two O(n) operations, then what would be Order of the method itself? Is it sill O(n)?

Thanks,
Pavan.
Mike Simmons
Ranch Hand

Joined: Mar 05, 2008
Posts: 3011
    
  10
If the method just calls the two operations one after the other, then yes, the result is O(n).

If the method has loops or if statements, the result may be different. For example if it loops n times and calls one or more O(n) operations, the result is O(n^2).
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Algorithm Analysis Question