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#!/usr/bin/env run_haskell_stack.sh
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{-# LANGUAGE OverloadedStrings, AllowAmbiguousTypes #-}
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import Data.Stack
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import Data.Maybe
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import Debug.Trace
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data ProblemState = ProblemState
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{ maxValue :: Int
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, maxHeight :: Int
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, maxStartIndex :: Int
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, maxEndIndex :: Int
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, heightStartStack :: Stack (Int, Int)
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} deriving Show
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stackPeekDef theStack = fromMaybe (0, 0) $ stackPeek theStack
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processItem index problemState =
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let (newStack, (itemIndex, itemHeight)) =
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fromMaybe (stackNew, (0, 0)) $ stackPop $ heightStartStack problemState
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rectSize = (index - itemIndex) * itemHeight
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in if rectSize > (maxValue problemState)
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then problemState
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{ maxValue = rectSize
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, maxHeight = itemHeight
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, maxStartIndex = itemIndex
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, maxEndIndex = index
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, heightStartStack = newStack
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}
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else problemState { heightStartStack = newStack }
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processFenceHeight _ [] problemState = problemState
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processFenceHeight index allHeights@(height:heights) problemState =
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let hss = heightStartStack problemState
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(lastIndex, lastHeight) = stackPeekDef hss
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handleTaller = processFenceHeight (index + 1) heights $
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problemState
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{ heightStartStack = stackPush hss (index, height) }
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handleShorter = let withNewMax = processItem index problemState
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newProblemState =
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withNewMax
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{ heightStartStack =
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addIfLarger (heightStartStack withNewMax)
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(height, lastIndex)
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}
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-- No increment because we may need to pop more off of the stack
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in processFenceHeight index allHeights newProblemState
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addIfLarger theStack (index, height) =
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let (thisIndex, thisHeight) = stackPeekDef theStack
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in if thisHeight < height
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then stackPush theStack (index, height)
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else theStack
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in case lastHeight of
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_ | lastHeight < height -> handleTaller
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_ | lastHeight > height -> handleShorter
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_ -> processFenceHeight (index + 1) heights problemState
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processFences fences =
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let lastState = processFenceHeight 0 fences
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ProblemState { maxValue = -1
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, maxHeight = -1
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, maxStartIndex = -1
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, maxEndIndex = -1
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, heightStartStack = stackNew
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}
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fenceCount = length fences
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processItems state
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| stackIsEmpty (heightStartStack state) = state
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| otherwise = processItems $ processItem fenceCount state
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in processItems lastState
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main = do
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let finalState = processFences [2, 4, 6, 6, 6, 7, 6, 2, 2, 2, 2, 2, 2, 2]
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print $ maxValue finalState
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print $ maxHeight finalState
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print $ maxStartIndex finalState
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print $ maxEndIndex finalState
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@ -1,22 +0,0 @@
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#!/usr/bin/env run_haskell_stack.sh
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import Data.Bifunctor
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import Data.Tuple
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knightDeltasSimple =
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applyAll [swap] (1, 2)
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>>= applyAll [first negate, second negate, bimapBoth negate]
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where applyAll fns v = map ($ v) $ id:fns
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bimapBoth fn = bimap fn fn
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knightDeltas = applyInStages [(1, 2)]
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[ [swap]
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, [bimapBoth (* 2)]
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, [first negate, second negate, bimapBoth negate]
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]
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where applyAll fns v = map ($ v) $ id:fns
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applyAllToValues values fns = values >>= applyAll fns
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applyInStages = foldl applyAllToValues
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bimapBoth fn = bimap fn fn
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main = print knightDeltas
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@ -1,75 +0,0 @@
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#!/usr/bin/env python
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import argparse
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import os
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import sys
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class BrightnessManager(object):
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@classmethod
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def from_path(cls, path):
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return cls(
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set_brightness_filepath=os.path.join(path, "brightness"),
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actual_brightness_filepath=os.path.join(path, "actual_brightness"),
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max_brightness_filepath=os.path.join(path, "max_brightness"),
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)
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def __init__(
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self, set_brightness_filepath, max_brightness_filepath, actual_brightness_filepath
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):
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self.set_brightness_filepath = set_brightness_filepath
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self.max_brightness_filepath = max_brightness_filepath
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self.actual_brightness_filepath = actual_brightness_filepath
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@property
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def current_brightness(self):
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with open(self.actual_brightness_filepath) as fd:
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return int(fd.read())
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@property
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def max_brightness(self):
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with open(self.max_brightness_filepath) as fd:
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return int(fd.read())
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@current_brightness.setter
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def current_brightness(self, brightness):
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with open(self.set_brightness_filepath, 'w') as fd:
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fd.write(str(brightness))
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def increment_by_proportion(self, proportion):
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new_brightness = self.current_brightness + int(self.max_brightness * proportion)
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new_brightness = min(new_brightness, self.max_brightness)
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self.current_brightness = new_brightness
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@property
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def current_proportion(self):
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return float(self.current_brightness) / self.max_brightness
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IntelBrightnessManager = BrightnessManager.from_path(
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"/sys/class/backlight/intel_backlight",
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)
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def build_parser():
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parser = argparse.ArgumentParser(
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description='Interact with macbook brightness',
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)
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parser.add_argument(
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"--change", "-c",
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help="Change volume by the given percentage",
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default=0
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)
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parser.add_argument(
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"--print", "-p", dest="do_print",
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action='store_true',
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default=False
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)
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return parser
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if __name__ == '__main__':
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args = build_parser().parse_args()
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IntelBrightnessManager.increment_by_proportion(float(args.change) / 100)
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if args.do_print:
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print(int(IntelBrightnessManager.current_proportion * 100))
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