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(i.) What does the vector B returned (computed) by the function FooBar contain? Justify your answer. (ii.) What is the loop invariant for the inner for loop based on which you can show what the function actually returns? (iii.) Show that it remains invariant throughout the execution of the function.

(i.) What does the vector B returned (computed) by the function FooBar contain? Justify your answer. (ii.) What is the loop invariant for the inner for loop based on which you can show what the function actually returns? (iii.) Show that it remains invariant throughout the execution of the function.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1. task: Introduction and basics. Peter Zmeda is really lucky. He often finds parts of code and he then asks himself if he could use them anywhere. This time he has found the following code: int FooBar (A) { n= len (A); B= newArray (n) for j:= 0 to n-1 { } B[j] = 0 for i:= j to 0 step -1 { if A[i] <A[j] { B[j] = B[j] + 1 } return B B) (i.) What does the vector B returned (computed) by the function FooBar contain? Justify your answer. (ii.) What is the loop invariant for the inner for loop based on which you can show what the function actually returns? (iii.) Show that it remains invariant throughout the execution of the function.
Transcribed Image Text:1. task: Introduction and basics. Peter Zmeda is really lucky. He often finds parts of code and he then asks himself if he could use them anywhere. This time he has found the following code: int FooBar (A) { n= len (A); B= newArray (n) for j:= 0 to n-1 { } B[j] = 0 for i:= j to 0 step -1 { if A[i] <A[j] { B[j] = B[j] + 1 } return B B) (i.) What does the vector B returned (computed) by the function FooBar contain? Justify your answer. (ii.) What is the loop invariant for the inner for loop based on which you can show what the function actually returns? (iii.) Show that it remains invariant throughout the execution of the function.
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