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Rooted by: Add the missing Product function
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  • Code 
    from functools import reduce
prod =lambda n:reduce(lambda x,y:x*y,n if n else[0])
     Test Cases 
    # TODO Write tests
import solution # or from solution import example

# test.assert_equals(actual, expected, [optional] message)
@test.describe("Simple tests")
def test_group():
    @test.it("Short lists")
    def test_case():
        test.assert_equals(prod([1,1]), 1)
        test.assert_equals(prod([]), 0)
        test.assert_equals(prod(range(1,10)), 362880)
    View Run Output
  • Code
    • from itertools import product
    • def prod(n):
    • if not n:return 0
    • n = n[-1]
    • fact = lambda x: x if x <= 2 else x*fact(x-1)
    • return fact(n)
    • from functools import reduce
    • prod =lambda n:reduce(lambda x,y:x*y,n if n else[0])