class SimpleCalcImpl
Public Instance Methods
fact(n)
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# File examples/demo.rb, line 25 def fact(n) (2..n).reduce(1) { |m, e| m * e } end
pos(arr, i)
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# File examples/demo.rb, line 33 def pos(arr, i) arr.index(i) end
sum(a)
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# File examples/demo.rb, line 29 def sum(a) a.reduce(0, &:+) end