Finding maximal points

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Tutorial 2

• Finding maximal points
• Detail of an output sensitive algorithm

2
Output sensitive algorithm

• Pick the rightmost point of S, denote it as P (It
  must be the maximal point!)
• Discard all the points from S that are
  invalidated by P
• Output P and discard P from S
• Repeat the first step until S is empty

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Step1 Locate rightmost pt
P
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Step 2 Discard invalid pts
P
Reason If we pick p as maximal point, then all
other points in Q3 cant be maximal
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Step 3 output and discard
P
Output P
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Step 4 Repeat step 1