Bob loves foreign languages and wants to plan his course schedule to take the following nine language courses: LA15, LA16, LA22, LA31, LA32, LA126, LA127, LA141, and LA169. The course prerequisites are: • LA15: (none) • LA16: LA15 • LA22: (none) • LA31: LA15 • LA32: LA16, LA31 • LA126: LA22, LA32 • LA127: LA16 • LA141: LA22, LA16 • LA169: LA32 Find a sequence of courses that allows Bob to satisfy all the prerequesites.

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
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Bob loves foreign languages and wants to plan his course schedule to take the following nine language courses: LA15, LA16, LA22, LA31, LA32, LA126, LA127, LA141, and LA169.

The course prerequisites are:

• LA15: (none)

• LA16: LA15

• LA22: (none)

• LA31: LA15

• LA32: LA16, LA31

• LA126: LA22, LA32

• LA127: LA16

• LA141: LA22, LA16

• LA169: LA32

Find a sequence of courses that allows Bob to satisfy all the prerequesites.

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