Weekly Contest #18

(Ended)

Standings

Q1.

Question

Answer must be a floating-point or integer value and precision error less than 10^-6 is allowed.


Editorial

Q2.

Question

Answer must be a floating-point or integer value and precision error less than 10^-6 is allowed.


Editorial

Q3.

A number N has three digits when expressed in base 7. When N is expressed in base 9 the digits are reversed. Then the middle digit is:

Answer must be a floating-point or integer value and precision error less than 10^-6 is allowed.


Editorial

Q4.

Question

Answer must be a floating-point or integer value and precision error less than 10^-6 is allowed.


Editorial

Q5.

Question

Answer must be a floating-point or integer value and precision error less than 10^-6 is allowed.


Editorial