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View leap_year.rb
# Write a function that returns true or false depending on
# whether its input integer is a leap year or not.
#
# A leap year is defined as one that is divisible by 4,
# but is not otherwise divisible by 100 unless it is
# also divisible by 400.
#
# For example, 2001 is a typical common year and 1996
# is a typical leap year, whereas 1900 is an atypical
# common year and 2000 is an atypical leap year.
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