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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9. Ackermann's Function
Ackermann's function is a recursive mathematical algorithm that can be used to test how well
a computer performs recursion. Write a method ackermann(m, n), which solves Ackermann's
function. Use the following logic in your method:
If m = 0 then return n + 1
If n = 0 then return ackermann(m – 1, 1)
Otherwise, return ackermann(m – 1, ackermann(m, n – 1))
Test your method in a program that displays the return values of the following method
calls:
ackermann(0, 0)
ackermann(0, 1)
ackermann(1, 1)
ackermann(1, 2)
ackermann(1, 3)
ackermann(2, 2)
ackermann(3, 2)
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Transcribed Image Text:9. Ackermann's Function Ackermann's function is a recursive mathematical algorithm that can be used to test how well a computer performs recursion. Write a method ackermann(m, n), which solves Ackermann's function. Use the following logic in your method: If m = 0 then return n + 1 If n = 0 then return ackermann(m – 1, 1) Otherwise, return ackermann(m – 1, ackermann(m, n – 1)) Test your method in a program that displays the return values of the following method calls: ackermann(0, 0) ackermann(0, 1) ackermann(1, 1) ackermann(1, 2) ackermann(1, 3) ackermann(2, 2) ackermann(3, 2)
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