Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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6 - Merge sorted arrays
Program a method merge_sorted(a,b) that when given two sorted arrays a and b, returns a new sorted array c that has the elements from array a and
array b. For example when given
= [1,3,5,6,10]
a
b = [1,4,6,8]
%3D
the resulting array should be:
C =
= [1,1,3,4,5,6,6,8,10]
This method should not call a sorting method. Instead, the resulting array should be produced by "zipping" the two input arrays together: we repeatedly
select the least element that we did not consider before from a and b and include this in c.
For example:
a =
[1,3,5,6,10]
b = [1,4,6,8]
C =
[1,1,3,
...]
the arrows (^) point to the lowest element we did not consider before. Of these, element 4 from b is less than element 5 from a. For this reason, we select
4 as the next element and advance the arrow ^ for b to point to 6.
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Transcribed Image Text:6 - Merge sorted arrays Program a method merge_sorted(a,b) that when given two sorted arrays a and b, returns a new sorted array c that has the elements from array a and array b. For example when given = [1,3,5,6,10] a b = [1,4,6,8] %3D the resulting array should be: C = = [1,1,3,4,5,6,6,8,10] This method should not call a sorting method. Instead, the resulting array should be produced by "zipping" the two input arrays together: we repeatedly select the least element that we did not consider before from a and b and include this in c. For example: a = [1,3,5,6,10] b = [1,4,6,8] C = [1,1,3, ...] the arrows (^) point to the lowest element we did not consider before. Of these, element 4 from b is less than element 5 from a. For this reason, we select 4 as the next element and advance the arrow ^ for b to point to 6.
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