programming-examples/ruby/Basics/CheckIFEvenOrOdd.rb

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2019-11-18 14:44:36 +01:00
#Given a number,check if it is even or odd using bit operations.
#Algorithm: let num be x
#find x&1 ,if result is 0 then even else odd.
#The Least significant bit of odd number is always 1 and even is always 0,hence x&1 will be 0 if even else odd.
def check_evenOdd(x)
if x&1==0
print "#{x} is even"
else
print "#{x} is odd"
end
end