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# Find the maximum | |
def maximum(array) | |
max = array[0] | |
array.each do |x| | |
if max < x | |
max = x | |
end | |
end | |
max | |
end | |
# expect it to return 42 below | |
result = maximum([2, 42, 22, 02]) | |
puts "max of 2, 42, 22, 02 is: #{result}" | |
# expect it to return nil when empty array is passed in | |
result = maximum([]) | |
puts "max on empty set is: #{result.inspect}" | |
result = maximum([-23, 0, -3]) | |
puts "max of -23, 0, -3 is: #{result}" | |
result = maximum([6]) | |
puts "max of just 6 is: #{result}" | |
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