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Consider the following MAXMIN algorithm. How many comparisons does it use? Is it likely to be faster or slower than the divide-and-conquer algorithmin practice? procedure maxmin2(S) comment computes maximum and minimum of S[1..n] in max and min resp. 1. if n is odd then max:=S[n]; min:=S[n] 2. else max:=−∞; min:=∞ 3. for i := 1 to n/2 do 4. if S[2i − 1] ≤ S[2i] 5. then small:=S[2i − 1]; large:=S[2i] 6. else small:=S[2i]; large:=S[2i − 1] 7. if small < min then min:=small 8. if large > max then min:=small

Consider the following MAXMIN algorithm. How many comparisons does it use? Is it likely to be faster or slower than the divide-and-conquer algorithmin practice? procedure maxmin2(S) comment computes maximum and minimum of S[1..n] in max and min resp. 1. if n is odd then max:=S[n]; min:=S[n] 2. else max:=−∞; min:=∞ 3. for i := 1 to n/2 do 4. if S[2i − 1] ≤ S[2i] 5. then small:=S[2i − 1]; large:=S[2i] 6. else small:=S[2i]; large:=S[2i − 1] 7. if small < min then min:=small 8. if large > max then min:=small

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider the following MAXMIN algorithm. How many comparisons does it use? Is it likely to be faster or slower than the divide-and-conquer algorithmin practice? procedure maxmin2(S) comment computes maximum and minimum of S[1..n] in max and min resp. 1. if n is odd then max:=S[n]; min:=S[n] 2. else max:=−∞; min:=∞ 3. for i := 1 to n/2 do 4. if S[2i − 1] ≤ S[2i] 5. then small:=S[2i − 1]; large:=S[2i] 6. else small:=S[2i]; large:=S[2i − 1] 7. if small < min then min:=small 8. if large > max then min:=small

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