EMC's two interview questions-Fibonacci/C ++ heavy load

Question 1, 2, 3, 5, 8, 13... how much is the number of the 58th series divided by 57th?

The Fibonacci series have many magical properties.
The progressive value of FN/FN + 1 in a Fibonacci series is (√ 5-1)/2 (Golden division, ≈ 0.618)
The progressive value of FN + 1/FN is (√ 5 + 1)/2 ≈ 1.618
When two M is divisible by N, FM is divisible by FN

 

Which of the following operators cannot be overloaded in C ++?

 

. Class member operators
. * Member pointer Operator
: Domain resolution Operator
? : Conditional expression Operator