Contents

module DifferenceOfSquares exposing (..)


squareOfSum : Int -> Int
squareOfSum n =
    let
        sum =
            n * (n + 1) // 2
    in
        sum * sum


sumOfSquares : Int -> Int
sumOfSquares n =
    List.sum (List.map (\m -> m * m) [0..n])


difference : Int -> Int
difference n =
    squareOfSum n - sumOfSquares n

Version data entries

38 entries across 38 versions & 1 rubygems

Version	Path
trackler-2.0.5.1	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.5.0	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.4.0	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.9	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.8	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.7	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.6	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.5	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.4	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.3	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.2	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.1	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.3.0	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.2.0	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.1.2	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.1.1	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.1.0	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.0.10	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.0.9	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example
trackler-2.0.0.8	tracks/elm/exercises/difference-of-squares/DifferenceOfSquares.example