2016 Update

This commit is contained in:
Tina Müller 2016-12-05 22:15:40 +01:00
parent 948b86eafa
commit dcf5d15da3
7965 changed files with 139854 additions and 31002 deletions

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-- finalDoors :: Int -> [(Int, Bool)]
on finalDoors(n)
-- toggledCorridor :: [(Int, Bool)] -> (Int, Bool) -> Int -> [(Int, Bool)]
script toggledCorridor
on lambda(a, _, k)
-- perhapsToggled :: Bool -> Int -> Bool
script perhapsToggled
on lambda(x, i)
if i mod k = 0 then
{i, not item 2 of x}
else
{i, item 2 of x}
end if
end lambda
end script
map(perhapsToggled, a)
end lambda
end script
set lstRange to range(1, n)
foldl(toggledCorridor, ¬
zip(lstRange, replicate(n, {false})), lstRange)
end finalDoors
-- TEST
on run
-- isOpenAtEnd :: (Int, Bool) -> Bool
script isOpenAtEnd
on lambda(door)
(item 2 of door)
end lambda
end script
-- doorNumber :: (Int, Bool) -> Int
script doorNumber
on lambda(door)
(item 1 of door)
end lambda
end script
map(doorNumber, filter(isOpenAtEnd, finalDoors(100)))
--> {1, 4, 9, 16, 25, 36, 49, 64, 81, 100}
end run
-- GENERIC FUNCTIONS
-- filter :: (a -> Bool) -> [a] -> [a]
on filter(f, xs)
tell mReturn(f)
set lst to {}
set lng to length of xs
repeat with i from 1 to lng
set v to item i of xs
if lambda(v, i, xs) then set end of lst to v
end repeat
return lst
end tell
end filter
-- foldl :: (a -> b -> a) -> a -> [b] -> a
on foldl(f, startValue, xs)
tell mReturn(f)
set v to startValue
set lng to length of xs
repeat with i from 1 to lng
set v to lambda(v, item i of xs, i, xs)
end repeat
return v
end tell
end foldl
-- map :: (a -> b) -> [a] -> [b]
on map(f, xs)
tell mReturn(f)
set lng to length of xs
set lst to {}
repeat with i from 1 to lng
set end of lst to lambda(item i of xs, i, xs)
end repeat
return lst
end tell
end map
-- zip :: [a] -> [b] -> [(a, b)]
on zip(xs, ys)
script pair
on lambda(x, i)
[x, item i of ys]
end lambda
end script
if length of xs = length of ys then
map(pair, xs)
else
missing value
end if
end zip
-- Egyptian multiplication - progressively doubling a list, appending
-- stages of doubling to an accumulator where needed for binary
-- assembly of a target length
-- replicate :: Int -> a -> [a]
on replicate(n, a)
if class of a is list then
set out to {}
else
set out to ""
end if
if n < 1 then return out
set dbl to a
repeat while (n > 1)
if (n mod 2) > 0 then set out to out & dbl
set n to (n div 2)
set dbl to (dbl & dbl)
end repeat
return out & dbl
end replicate
-- range :: Int -> Int -> [Int]
on range(m, n)
set d to 1
if n < m then set d to -1
set lst to {}
repeat with i from m to n by d
set end of lst to i
end repeat
return lst
end range
-- Lift 2nd class handler function into 1st class script wrapper
-- mReturn :: Handler -> Script
on mReturn(f)
if class of f is script then
f
else
script
property lambda : f
end script
end if
end mReturn

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{1, 4, 9, 16, 25, 36, 49, 64, 81, 100}

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map(factorCountMod2, range(1, 100))
on factorCountMod2(n)
{n, (length of integerFactors(n)) mod 2 = 1}
end factorCountMod2

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-- perfectSquaresUpTo :: Int -> [Int]
on perfectSquaresUpTo(n)
script squared
-- (Int -> Int)
on lambda(x)
x * x
end lambda
end script
set realRoot to n ^ (1 / 2)
set intRoot to realRoot as integer
set blnNotPerfectSquare to not (intRoot = realRoot)
map(squared, range(1, intRoot - (blnNotPerfectSquare as integer)))
end perfectSquaresUpTo
on run
perfectSquaresUpTo(100)
end run

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{1, 4, 9, 16, 25, 36, 49, 64, 81, 100}