16 lines
159 B
Ruby
16 lines
159 B
Ruby
max = 4_000_000
|
|
a, b = 1, 2
|
|
c = 3
|
|
sum = 0
|
|
|
|
while b < max do
|
|
sum += b if b % 2 == 0
|
|
c = (a + b)
|
|
puts "#{c} = #{a} + #{b}"
|
|
a, b = b, c
|
|
|
|
end
|
|
|
|
|
|
puts sum
|