--- /dev/null
+{
+ "cells": [
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "{-# LANGUAGE NegativeLiterals #-}\n",
+ "{-# LANGUAGE FlexibleContexts #-}"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 113,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import Data.List.Split (splitOn, chunksOf)\n",
+ "import Data.Char (ord, chr)\n",
+ "import Data.Bits\n",
+ "import Numeric (showHex)\n",
+ "import Text.Printf"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "extract items from len = take len $ drop from $ items ++ items"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 24,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "-- replace original replacement from \n",
+ "-- | from + length replacement <= length original = replacement ++ drop (length replacement) original\n",
+ "-- | otherwise = drop (length original) extended ++ \n",
+ "-- where extended = take from original ++ replacement ++ drop suflen original\n",
+ "-- suflen = from + length replacement - length original "
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 51,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "replace original replacement from = take (length original) (start ++ replacement ++ remainder)\n",
+ " where excess = drop (length original - from) replacement\n",
+ " stub = drop (length excess) original\n",
+ " start = take from (excess ++ stub)\n",
+ " remainder = drop (length $ start ++ replacement) original "
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 52,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "[0,1,2]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "extract [0, 1, 2, 3, 4] 0 3"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 53,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "[2,1,0]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "reverse [0,1,2]"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 54,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "l0 = [0,1,2,3,4]"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 55,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "[2,1,0,3,4]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "replace l0 (reverse $ extract l0 0 3) 0"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 56,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "[4,0,1]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "extract l0 4 3"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 57,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "[0,4,2,3,1]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "replace l0 (reverse $ extract l0 4 3) 4"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "0 1 2 3 4\n",
+ "0 1 2 3 [4]\n",
+ "0 1) 2 3 ([4]\n",
+ "0 4) 2 3 (1\n",
+ "\n",
+ "0 1 2 3 4 | 0 1 2 3 4\n",
+ "0 1 2 3 [4] | 0 1 2 3 4\n",
+ "0 1 2 3 ([4] | 0 1) 2 3 4\n",
+ "0 1 2 3 ( 1 | 0 4) 2 3 4\n",
+ "\n",
+ "\n",
+ " 0 1 2 3 4 | 0 1 2 3 4\n",
+ " [0] 1 2 3 4 | 0 1 2 3 4\n",
+ "([0] 1 2) 3 4 | 0 1 2 3 4\n",
+ "( 2 1 0) 3 4 | 0 1 2 3 4"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 58,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "tie original start len = replace original replacement start\n",
+ " where replacement = reverse $ extract original start len"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 59,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "<style>/* Styles used for the Hoogle display in the pager */\n",
+ ".hoogle-doc {\n",
+ "display: block;\n",
+ "padding-bottom: 1.3em;\n",
+ "padding-left: 0.4em;\n",
+ "}\n",
+ ".hoogle-code {\n",
+ "display: block;\n",
+ "font-family: monospace;\n",
+ "white-space: pre;\n",
+ "}\n",
+ ".hoogle-text {\n",
+ "display: block;\n",
+ "}\n",
+ ".hoogle-name {\n",
+ "color: green;\n",
+ "font-weight: bold;\n",
+ "}\n",
+ ".hoogle-head {\n",
+ "font-weight: bold;\n",
+ "}\n",
+ ".hoogle-sub {\n",
+ "display: block;\n",
+ "margin-left: 0.4em;\n",
+ "}\n",
+ ".hoogle-package {\n",
+ "font-weight: bold;\n",
+ "font-style: italic;\n",
+ "}\n",
+ ".hoogle-module {\n",
+ "font-weight: bold;\n",
+ "}\n",
+ ".hoogle-class {\n",
+ "font-weight: bold;\n",
+ "}\n",
+ ".get-type {\n",
+ "color: green;\n",
+ "font-weight: bold;\n",
+ "font-family: monospace;\n",
+ "display: block;\n",
+ "white-space: pre-wrap;\n",
+ "}\n",
+ ".show-type {\n",
+ "color: green;\n",
+ "font-weight: bold;\n",
+ "font-family: monospace;\n",
+ "margin-left: 1em;\n",
+ "}\n",
+ ".mono {\n",
+ "font-family: monospace;\n",
+ "display: block;\n",
+ "}\n",
+ ".err-msg {\n",
+ "color: red;\n",
+ "font-style: italic;\n",
+ "font-family: monospace;\n",
+ "white-space: pre;\n",
+ "display: block;\n",
+ "}\n",
+ "#unshowable {\n",
+ "color: red;\n",
+ "font-weight: bold;\n",
+ "}\n",
+ ".err-msg.in.collapse {\n",
+ "padding-top: 0.7em;\n",
+ "}\n",
+ ".highlight-code {\n",
+ "white-space: pre;\n",
+ "font-family: monospace;\n",
+ "}\n",
+ ".suggestion-warning { \n",
+ "font-weight: bold;\n",
+ "color: rgb(200, 130, 0);\n",
+ "}\n",
+ ".suggestion-error { \n",
+ "font-weight: bold;\n",
+ "color: red;\n",
+ "}\n",
+ ".suggestion-name {\n",
+ "font-weight: bold;\n",
+ "}\n",
+ "</style><div class=\"suggestion-name\" style=\"clear:both;\">Redundant bracket</div><div class=\"suggestion-row\" style=\"float: left;\"><div class=\"suggestion-warning\">Found:</div><div class=\"highlight-code\" id=\"haskell\">(start + len + skip) `mod` (length original)</div></div><div class=\"suggestion-row\" style=\"float: left;\"><div class=\"suggestion-warning\">Why Not:</div><div class=\"highlight-code\" id=\"haskell\">(start + len + skip) `mod` length original</div></div>"
+ ],
+ "text/plain": [
+ "Line 3: Redundant bracket\n",
+ "Found:\n",
+ "(start + len + skip) `mod` (length original)\n",
+ "Why not:\n",
+ "(start + len + skip) `mod` length original"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "step (original, start, skip) len = (replaced, start', skip + 1)\n",
+ " where replaced = tie original start len\n",
+ " start' = (start + len + skip) `mod` (length original)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 60,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "[0,1,2,3,4]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "[0..4]"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 61,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "([2,1,0,3,4],3,1)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "step ([0..4], 0, 0) 3"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 66,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "([3,4,2,1,0],4,4)"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "foldl step ([0..4], 0, 0) [3, 4, 1, 5]"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 79,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "part1 :: [Int] -> Int\n",
+ "part1 lengths = (tied!!0) * (tied!!1)\n",
+ " where (tied, _, _) = foldl step ([0..255], 0, 0) lengths"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 101,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "part2 text = tied\n",
+ " where lengths = p2lengths text\n",
+ " (tied, _, _) = foldl step ([0..255], 0, 0) lengths"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 102,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "main :: IO ()\n",
+ "main = do \n",
+ " text <- readFile \"../../data/advent10.txt\"\n",
+ " let instrs = map read $ splitOn \",\" text\n",
+ " print $ part1 instrs\n",
+ " print $ part2 text"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 103,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "38415\n",
+ "[166,221,219,74,89,118,226,182,77,185,188,87,238,181,229,173,45,68,84,147,10,194,196,201,55,80,171,119,186,54,154,46,52,161,9,149,135,255,180,210,129,214,127,18,51,236,56,78,24,187,97,25,131,70,143,106,211,218,189,224,179,220,41,141,240,233,76,26,253,207,159,172,86,241,136,215,12,197,112,62,23,138,0,169,99,50,235,205,122,103,116,71,251,160,206,22,4,202,252,40,234,242,193,39,32,191,63,217,152,117,33,163,61,213,164,133,6,16,110,58,102,43,126,67,31,30,95,199,2,183,1,208,239,96,20,13,57,66,38,132,177,195,44,203,247,65,14,227,100,82,151,3,28,150,98,146,140,37,42,120,168,91,83,27,209,148,176,250,101,162,145,79,115,15,228,192,142,104,155,29,19,53,49,35,128,5,184,248,222,123,124,216,178,64,113,198,244,245,246,167,47,11,170,212,109,114,237,94,144,69,243,254,121,231,59,108,17,153,249,34,72,7,130,21,200,175,81,134,105,137,75,165,156,174,232,125,92,88,8,93,157,223,225,48,111,85,107,204,36,158,90,139,190,230,60,73]"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "main"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 85,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "97"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "ord 'a'"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 86,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "'a'"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "chr 97"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 88,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "4"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "7 `xor` 3"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 112,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "\"ff\""
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "showHex 255 \"\""
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 116,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "ff"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "printf \"%02x\" 255"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 93,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "p2lengths text = take (length chunk * 64) $ cycle chunk\n",
+ " where chunk = map ord text ++ [17, 31, 73, 47, 23]"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 117,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "densify ns = concatMap (printf \"%02x\") codes\n",
+ " where chunks = chunksOf 16 ns\n",
+ " compress = foldl1 xor\n",
+ " codes = map compress chunks"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 126,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "part2 :: String -> String\n",
+ "part2 text = densify tied\n",
+ " where lengths = p2lengths text\n",
+ " (tied, _, _) = foldl step ([0..255], 0, 0) lengths"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 121,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "a2582a3a0e66e6e86e3812dcb672a272"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "putStrLn $ part2 \"\""
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 122,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "33efeb34ea91902bb2f59c9920caa6cd"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "putStrLn $ part2 \"AoC 2017\""
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 123,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "3efbe78a8d82f29979031a4aa0b16a9d"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "putStrLn $ part2 \"1,2,3\""
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 124,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "63960835bcdc130f0b66d7ff4f6a5a8e"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "putStrLn $ part2 \"1,2,4\""
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 129,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "main :: IO ()\n",
+ "main = do \n",
+ " text <- readFile \"../../data/advent10.txt\"\n",
+ " let instrs = map read $ splitOn \",\" text\n",
+ " print $ part1 instrs\n",
+ " putStrLn $ part2 text"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 130,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "38415\n",
+ "9de8846431eef262be78f590e39a4848"
+ ]
+ },
+ "metadata": {},
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "main"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": []
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Haskell",
+ "language": "haskell",
+ "name": "haskell"
+ },
+ "language_info": {
+ "codemirror_mode": "ihaskell",
+ "file_extension": ".hs",
+ "name": "haskell",
+ "version": "8.0.2"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
projects / advent-of-code-17.git / blobdiff