Reverse Integer Digits and Leap Year | Dataford Interview Questions

Keysight PathWave test automation may process numeric configuration values alongside calendar-based test metadata. Implement a function that reverses the digits of a signed integer and determines whether a given year is a leap year in the Gregorian calendar.

Formal Specification

Given integers number and year, return a dictionary with exactly two entries:

reversed: number with its decimal digits reversed. Preserve the sign, and discard leading zeroes in the reversed result.
is_leap_year: True if year is a leap year, otherwise False.

A year is a leap year if it is divisible by 400, or if it is divisible by 4 but not by 100. Use arithmetic rather than converting number to a string for the primary solution.

Constraints

-10^9 <= number <= 10^9
1 <= year <= 9999
The year follows the proleptic Gregorian calendar
Python integer arithmetic is sufficient, so overflow handling is not required

Function Signature

def reverse_and_check_year(number, year):

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