S 1
Source:
May 25, 2007
number theoryDiophantine equationMiscellaneous Problems
Problem Statement
a) Two positive integers are chosen. The sum is revealed to logician , and the sum of squares is revealed to logician . Both and are given this information and the information contained in this sentence. The conversation between and goes as follows: starts
B: ` I can't tell what they are.'
A: ` I can't tell what they are.'
B: ` I can't tell what they are.'
A: ` I can't tell what they are.'
B: ` I can't tell what they are.'
A: ` I can't tell what they are.'
B: ` Now I can tell what they are.'
What are the two numbers?
b) When first says that he cannot tell what the two numbers are, receives a large amount of information. But when first says that he cannot tell what the two numbers are, already knows that cannot tell what the two numbers are. What good does it do to listen to ?