n people each have exactly one unique secret. How many phone calls are needed so that each person knows all n secrets? You should assume that in each phone call the caller tells the other person every secret he knows, but learns nothing from the person he calls. A. 2n-2 B. 2n+1 C. n+1 D. 2n
n people each have exactly one unique secret. How many phone calls are needed so that each person knows all n secrets? You should assume that in each phone call the caller tells the other person every secret he knows, but learns nothing from the person he calls. A. 2n-2 B. 2n+1 C. n+1 D. 2n
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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34) What is the solution and answer to this?
![34. n people each have exactly one unique secret. How many phone calls are
needed so that each person knows all n secrets? You should assume that
in each phone call the caller tells the other person every secret he
knows, but learns nothing from the person he calls.
A. 2n-2
C. n+1
B. 2n+1
D.
2n](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe2297e80-2ff1-4c11-9f53-4819a88b5054%2F01ba8460-161b-4c84-8c19-68428b2bc669%2Fd38y268_processed.jpeg&w=3840&q=75)
Transcribed Image Text:34. n people each have exactly one unique secret. How many phone calls are
needed so that each person knows all n secrets? You should assume that
in each phone call the caller tells the other person every secret he
knows, but learns nothing from the person he calls.
A. 2n-2
C. n+1
B. 2n+1
D.
2n
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