4 files changed, 668 insertions, 0 deletions

diff --git a/aoc.cabal b/aoc.cabal
index 87867f4..ad67f92 100644
--- a/aoc.cabal
+++ b/aoc.cabal
@@ -99,3 +99,9 @@ executable Day13
   build-depends:       base, aoc, containers, split
   default-language:    Haskell2010
   hs-source-dirs:      execs
+
+executable Day14
+  main-is:             Day14.hs
+  build-depends:       base, aoc, containers, parsec, strings
+  default-language:    Haskell2010
+  hs-source-dirs:      execs
diff --git a/execs/Day14.hs b/execs/Day14.hs
new file mode 100644
index 0000000..d82424a
--- /dev/null
+++ b/execs/Day14.hs
@@ -0,0 +1,68 @@
+module Main where
+
+import           Utils
+import           Text.ParserCombinators.Parsec
+import           Text.Parsec.Char
+import           Data.Either
+import           Data.Char
+import           Data.Strings
+import           Numeric (showIntAtBase, readInt)
+import           Data.Map (Map)
+import qualified Data.Map as Map
+
+data Stmt = Mask String | Mem Int Int deriving Show
+
+parseMask :: Parser Stmt
+parseMask = string "mask = " >> Mask <$> many anyChar
+
+parseMem :: Parser Stmt
+parseMem = do 
+    one <- string "mem[" >> many1 digit
+    two <- string "] = " >> many1 digit
+    return $ Mem (read one) (read two)
+
+parseLine :: Parser Stmt
+parseLine = try parseMask <|> parseMem
+
+applyMask :: Int -> String -> Int
+applyMask v m = fst $ head $ readInt 2 (`elem` "01") digitToInt wm
+    where bv = strPadLeft '0' 36 $ showIntAtBase 2 intToDigit v ""
+          wm = zipWith fn bv m
+          fn o 'X' = o
+          fn _ '1' = '1'
+          fn _ '0' = '0'
+
+runProgram :: [Stmt] -> Int
+runProgram ls = sum regs
+    where (mask, regs) = foldl fn ("", Map.empty) ls
+          fn (_, regs) (Mask s) = (s, regs)
+          fn (m, regs) (Mem idx val) = (m, Map.insert idx nval regs)
+              where nval = applyMask val m
+
+floatings :: String -> [String]
+floatings [] = [[]]
+floatings ('X':xs) = floatings xs >>= (\b -> ['0':b, '1':b])
+floatings (x:xs) = map (x:) $ floatings xs
+
+genIdxs :: Int -> String -> [Int]
+genIdxs v m = map (fst . head . readInt 2 (`elem` "01") digitToInt) (floatings wm)
+    where bv = strPadLeft '0' 36 $ showIntAtBase 2 intToDigit v ""
+          wm = zipWith fn bv m
+          fn o '0' = o
+          fn _ '1' = '1'
+          fn _ 'X' = 'X'
+
+v2chip :: [Stmt] -> Int
+v2chip ls = sum regs
+    where (mask, regs) = foldl fn ("", Map.empty) ls
+          fn (_, regs) (Mask s) = (s, regs)
+          fn (m, regs) (Mem idx val) = (m, nmap)
+              where idxs = genIdxs idx m
+                    nmap = flip Map.union regs $ Map.fromList $ zip idxs $ repeat val
+
+
+main :: IO ()
+main = do
+    n <- rights . map (parse parseLine "main") . lines <$> readFile "input/14"
+    print $ runProgram n
+    print $ v2chip n
diff --git a/input/14 b/input/14
new file mode 100644
index 0000000..1b33a0d
--- /dev/null
+++ b/input/14
@@ -0,0 +1,590 @@
+mask = 10X0110X01100X00111XX00001X011101001
+mem[45673] = 370803
+mem[32234] = 92667525
+mem[47600] = 955
+mem[6610] = 316949
+mask = 0X10X001X00011X1111X111111010100X000
+mem[13551] = 903991
+mem[45894] = 160707
+mem[4188] = 64891428
+mem[43779] = 4687114
+mem[51764] = 53700515
+mask = 01X0X0001X10XX1001001111X0101111010X
+mem[34881] = 3311
+mem[23766] = 26540481
+mem[4785] = 13080077
+mem[43617] = 238523796
+mask = 010X100X010000101X100101011X0110X00X
+mem[4166] = 16195
+mem[21001] = 622
+mem[13952] = 245
+mem[43083] = 105622
+mem[11083] = 8400
+mem[35492] = 48568
+mask = X100X00XX1100X111111001001000X00X110
+mem[50918] = 9999
+mem[59535] = 70467
+mem[20502] = 87635
+mem[57441] = 113
+mem[21256] = 398644
+mem[43258] = 307
+mask = 1000XX00X1100X0XXX1110010X1001101001
+mem[14095] = 944
+mem[12960] = 7270083
+mem[666] = 4745792
+mem[43494] = 702
+mem[55637] = 86020085
+mem[61142] = 10437888
+mask = 11101XX01110X11011011101XX0100X0100X
+mem[57379] = 4533
+mem[48229] = 15994
+mem[22693] = 1881
+mem[44857] = 286865340
+mem[17331] = 8492087
+mem[25889] = 1613193
+mask = 0000100X0110X1111X0X11X00000X10XX1X1
+mem[57477] = 6196148
+mem[6101] = 15304384
+mem[57864] = 200431
+mask = 000X1X0001X0111X1111001000X0101011X0
+mem[44569] = 3960
+mem[39386] = 4949396
+mem[9324] = 96252
+mem[10664] = 3252
+mem[33233] = 50858274
+mem[41081] = 203824750
+mem[6645] = 34497265
+mask = 000011010010111X11111X00010X1100011X
+mem[3293] = 233493759
+mem[18956] = 118389
+mem[1025] = 5036522
+mask = 10X0X0X0011001X111111X01X110001X0XX0
+mem[4097] = 107862
+mem[6873] = 2097
+mask = 0100100XX1100X111111X001010111X01100
+mem[61230] = 540498103
+mem[47962] = 2753
+mem[37400] = 2327554
+mem[30629] = 1110830
+mem[53020] = 5591877
+mask = 10100X000101111X111X0X001110X0000101
+mem[54388] = 26326
+mem[419] = 1567
+mem[5373] = 2530
+mem[60258] = 33744
+mask = X1101000X11011X0110X1X0X000X0010X0X1
+mem[54088] = 256796
+mem[38615] = 38356
+mem[40164] = 31653
+mem[21378] = 76110
+mem[33233] = 277981788
+mem[2571] = 133984535
+mem[11562] = 879
+mask = 1X000X00010101011X10110X11111001XX11
+mem[34740] = 8869920
+mem[22740] = 521027
+mem[33792] = 96794
+mem[37005] = 862607
+mem[22723] = 317832765
+mem[26555] = 20923879
+mem[22410] = 54159
+mask = 00X010XX11101111X1111X0X1X000111X001
+mem[26275] = 663
+mem[59230] = 226183705
+mem[41684] = 2128
+mem[54297] = 12877801
+mem[60773] = 376426529
+mem[20303] = 196221024
+mask = 101X1000X1X10101111X11X0X110010100XX
+mem[22528] = 16249
+mem[57494] = 279620437
+mem[58026] = 31278
+mem[37016] = 4312
+mem[9883] = 921
+mem[41007] = 1465898
+mem[40481] = 1671783
+mask = 0X0X100001X01X10111X0X01000110101101
+mem[10406] = 997
+mem[38062] = 59582680
+mem[10708] = 198003209
+mem[46873] = 408862
+mem[11077] = 459424361
+mem[5727] = 1700448
+mem[14726] = 2676553
+mask = 10101X10011X000X101X0111X10X1000X0X1
+mem[10664] = 1516
+mem[30273] = 75130511
+mem[35601] = 25120037
+mem[49009] = 1173
+mask = 0X00100001101X1110010100X0001XX001X1
+mem[49285] = 7571
+mem[64534] = 1098
+mem[32768] = 200634491
+mask = 0000100X01100X101101X110X0X011110100
+mem[22416] = 30148149
+mem[60551] = 149806
+mem[2296] = 213850419
+mem[41081] = 39093
+mem[27329] = 216373847
+mask = 0X00100011X0001011000XX1011001011101
+mem[18054] = 9320576
+mem[54549] = 890
+mem[41636] = 251377782
+mem[2838] = 33263103
+mem[17995] = 30197595
+mask = 01X1100X1X10011001XXX0000X0011010010
+mem[49674] = 40088568
+mem[13699] = 9623301
+mem[17255] = 102507
+mem[1482] = 950983
+mem[25007] = 209244
+mem[49349] = 6079
+mask = 00X011X1X0001101XX10010XX01111000001
+mem[5196] = 30458917
+mem[50829] = 8251485
+mask = 010X1000X1100X10XX0X010X000011X10X01
+mem[32774] = 10963415
+mem[41684] = 371254
+mem[5706] = 6352
+mem[57962] = 1978534
+mem[8949] = 573680
+mask = 000010010X11X1X1X11X00X00X00X110110X
+mem[60127] = 25613364
+mem[54388] = 5567
+mem[1653] = 1153
+mem[49977] = 2608790
+mem[9352] = 121392208
+mask = 101000X0011001111X11000XX01000000001
+mem[54320] = 11715
+mem[26597] = 1278105
+mem[34204] = 6005345
+mask = 100X000100001111111001X1010X0111100X
+mem[17355] = 75752606
+mem[53353] = 41600
+mem[45075] = 4191461
+mask = 000X0X0X0000111111101X000101XXX0110X
+mem[27128] = 1953
+mem[17909] = 1884792
+mem[51151] = 161966299
+mem[60933] = 477409
+mem[39509] = 502
+mask = 10X0100001X10001001001X10101010100X0
+mem[26096] = 7205
+mem[39089] = 53634109
+mem[3545] = 339663043
+mask = 01X01X00011X00X01X0011X1001001X10011
+mem[34827] = 1959
+mem[22616] = 29090401
+mem[37561] = 18
+mask = 11XX100X0X10110011011101000100000001
+mem[57541] = 2764656
+mem[39464] = 945
+mem[34491] = 42267
+mem[56023] = 6588
+mem[59338] = 227140650
+mem[8359] = 3521567
+mem[41266] = 2122
+mask = XX00XX00011000101XXX0101XX0001100111
+mem[21001] = 467174080
+mem[40395] = 368280
+mem[21797] = 32584
+mem[51282] = 6472405
+mem[21479] = 38767
+mem[35943] = 1352511
+mask = 0X000001X0X0X11111X0111000111XX00101
+mem[19657] = 22615287
+mem[26805] = 864204812
+mem[42351] = 5662
+mem[2495] = 43866067
+mem[52318] = 1650
+mask = 0000X0X00X1001111101X11X010XX1010101
+mem[54816] = 774
+mem[18176] = 2028911
+mem[24777] = 8250958
+mask = X0001X0X0X1011111111X1000X0011000111
+mem[40738] = 2113
+mem[32774] = 484919091
+mem[39152] = 628235
+mem[54496] = 5964
+mem[40103] = 7433792
+mask = 0101100XX010X110011100000X00X0000X11
+mem[17488] = 3678
+mem[22963] = 519281
+mem[36751] = 85353835
+mem[47241] = 2092837
+mask = 00X0000100101111X11X00X0111XX1XX10X1
+mem[1650] = 922793
+mem[41636] = 6071583
+mem[36791] = 722
+mem[45902] = 372891111
+mask = 0001X1X01110011X010X001110X10001X00X
+mem[15382] = 246575660
+mem[10047] = 2031
+mem[33628] = 11165
+mem[59682] = 71030
+mask = XX01100010X001100X11X0X11X00100011X1
+mem[1239] = 750
+mem[7827] = 242729
+mem[2838] = 10048934
+mem[40971] = 531387
+mem[26539] = 9562
+mem[10664] = 1779885
+mask = X0X000X0011101XX1111011100000100X011
+mem[13229] = 118094981
+mem[22915] = 127258
+mem[57384] = 2073
+mem[18067] = 44857
+mem[1653] = 149132182
+mem[17291] = 395470
+mask = 00XX100101100X11X1X00000001010010101
+mem[31462] = 3975909
+mem[49220] = 466696245
+mem[50776] = 887
+mem[48644] = 241048
+mask = 0100X000X100XX111111X010010110011100
+mem[29775] = 441
+mem[52222] = 5446718
+mask = 101010X001XX01111011010101010100010X
+mem[16127] = 264083
+mem[27345] = 5194478
+mem[26269] = 167664051
+mem[34669] = 802625
+mask = 0100100001X00X1111110XX00X00X00101X0
+mem[21223] = 48966793
+mem[55118] = 225912
+mem[29898] = 1032
+mem[34679] = 318500
+mem[18584] = 5184511
+mem[53788] = 381219
+mask = 00000001001011XX11100000X100X0101001
+mem[20373] = 668
+mem[16238] = 532704
+mem[19062] = 680735783
+mem[57683] = 382
+mem[64534] = 305874
+mem[29567] = 71891
+mem[55384] = 8257807
+mask = 010010000110011X10XXX1011011X0010011
+mem[8834] = 27346290
+mem[26882] = 5857155
+mem[65399] = 28233
+mem[15313] = 9758
+mem[19856] = 15131
+mem[21792] = 452232
+mask = X0100X000110011111110X0X01XX100111X1
+mem[36885] = 11870
+mem[23633] = 8017694
+mem[49960] = 59066
+mask = 000010010X10011X110X11010X1100011101
+mem[52222] = 7906
+mem[50113] = 20025
+mem[62759] = 60742
+mem[42818] = 24123
+mem[20196] = 2695677
+mem[56150] = 2043641
+mask = 000010X10010011111110000XX1X01101101
+mem[14726] = 163931507
+mem[64534] = 10658257
+mem[36548] = 2016635
+mem[53328] = 1547
+mem[37016] = 29161
+mem[49509] = 204
+mem[54816] = 133927223
+mask = X000X000011X0101111111X00X00X000X011
+mem[63137] = 65851
+mem[3078] = 46729269
+mem[28777] = 44750
+mem[8050] = 2134
+mask = 0010100XX000X1011XX00101011001000110
+mem[42058] = 1405824
+mem[56633] = 3470500
+mem[18390] = 40628
+mask = 0100X00X01100X10100XX100011000X00011
+mem[23954] = 26996858
+mem[42351] = 4571897
+mem[39152] = 5572
+mem[22233] = 1518947
+mem[3293] = 261
+mask = 10X010X00111011X1110111011X000X10001
+mem[10419] = 119957
+mem[64222] = 1935417
+mem[39073] = 7184
+mask = 00001000111001101001XX10XX00X00X011X
+mem[18840] = 6949
+mem[54130] = 31279452
+mem[56463] = 2468673
+mem[12291] = 94799059
+mem[31014] = 130
+mask = 0100100X11X000X011010X0X0X00110011X1
+mem[55653] = 780405166
+mem[17373] = 289755
+mem[55275] = 129895
+mask = X0001XX001110111101001X10100X0010010
+mem[61610] = 176605034
+mem[26181] = 1694
+mem[40235] = 249848880
+mem[65399] = 58927
+mem[4769] = 197080137
+mem[2885] = 88722
+mask = 010110X011X001X10100010X110111010011
+mem[19697] = 49908
+mem[49644] = 27297
+mem[46331] = 68362
+mem[23374] = 4476652
+mem[38046] = 152384
+mask = 01001000X1X000X01X100X00XX00010010X0
+mem[57824] = 238363421
+mem[13229] = 141760722
+mem[12259] = 67177
+mem[24101] = 3496418
+mem[38370] = 125455
+mem[49997] = 1619802
+mask = X0XX1001X0X111110111110X10100X0110X0
+mem[57151] = 27210
+mem[51757] = 94709766
+mem[27009] = 184467
+mem[65310] = 623337
+mem[8310] = 6432
+mem[42814] = 312612328
+mask = 000X11X0X1100110X10X00X1X0X100001X01
+mem[51449] = 233840
+mem[33113] = 336176
+mem[24215] = 583439
+mem[32484] = 33697151
+mem[41246] = 35091190
+mem[45335] = 22504209
+mask = 00001X01XX00110111101000X11001000X00
+mem[49728] = 385
+mem[20071] = 19552156
+mem[36751] = 1381732
+mem[63977] = 140878
+mem[40754] = 8924389
+mem[31910] = 4771465
+mask = 0X101XX0111011101101101100XXX1X11111
+mem[4561] = 86501812
+mem[45894] = 15097769
+mem[52368] = 10598
+mem[57151] = 17927388
+mem[39781] = 121000932
+mask = 1X00X000XX10010111111101X00001X0000X
+mem[40963] = 13692
+mem[44259] = 12653
+mask = 00X010000XX011111100100X001100010001
+mem[26454] = 7079
+mem[23082] = 1849
+mem[16238] = 112603
+mem[35527] = 3215051
+mask = 01X0100XX110XX10110X1X0100001100X0X1
+mem[22233] = 14653
+mem[65020] = 210017
+mem[52710] = 3469
+mem[4243] = 4204979
+mask = 00001100001X11110111001000X00000X10X
+mem[54906] = 160425
+mem[2296] = 107308
+mem[25636] = 325676
+mem[1157] = 17126
+mem[18174] = 26645399
+mem[341] = 134
+mask = 00001X0X0X1X1111X111000001000XX01100
+mem[49509] = 1792437
+mem[9352] = 16691097
+mask = 01011000X110011010010XX00XX0X10X0000
+mem[47744] = 66265
+mem[17758] = 2364
+mem[58881] = 184736586
+mem[45874] = 3288
+mem[33128] = 1060635188
+mem[32851] = 8162
+mem[4758] = 8270611
+mask = 101010X0X1110X011010010111010X0100X1
+mem[65020] = 3436
+mem[7304] = 351967
+mem[20204] = 7690
+mem[52050] = 6767
+mem[42627] = 18681018
+mem[2302] = 309
+mask = 0X00X00111101111XX11111X100X011X0100
+mem[31161] = 4045
+mem[44948] = 998036
+mem[6417] = 1038591
+mem[19456] = 331767
+mem[13551] = 351590897
+mem[57397] = 2335810
+mem[27468] = 30148246
+mask = X0X010000111010111X10X011X0100110100
+mem[26334] = 2474013
+mem[17909] = 9019
+mem[7685] = 31
+mem[31203] = 88097
+mask = 0101100XX1XX011X01XX1100000X0011X101
+mem[33782] = 10039109
+mem[36350] = 13839
+mem[17355] = 5492
+mask = X000X00X110011111111X001110X001000X1
+mem[65020] = 81625042
+mem[34391] = 24765
+mem[22616] = 6081
+mem[40777] = 5659
+mask = 10X01000011101X11X1XX101010X00X1X0X1
+mem[57202] = 334564
+mem[64222] = 2096644
+mem[24034] = 23828772
+mem[22410] = 146958
+mem[10664] = 57410819
+mem[40103] = 335
+mem[40501] = 115314
+mask = 0X000001001011X1111111011010000010XX
+mem[20666] = 6659411
+mem[44873] = 41558959
+mem[33233] = 1051981
+mem[51278] = 6138
+mem[36171] = 1332906
+mem[6568] = 230
+mem[40776] = 4041579
+mask = 10101000110101011111100X10000X00XX10
+mem[11862] = 14638
+mem[18132] = 998819
+mem[11967] = 360999
+mem[6417] = 655336840
+mask = X0X10X010X001111X11010000001000101X0
+mem[21289] = 3642
+mem[45673] = 19810371
+mem[1416] = 92975839
+mask = XX00100001100X111X110010000010001011
+mem[51270] = 25149
+mem[42395] = 132570
+mem[1016] = 1001728
+mem[41825] = 2500361
+mem[17518] = 608172
+mem[41081] = 59823249
+mem[42445] = 47
+mask = 010X10001110001000000100X0X0110X00X0
+mem[53475] = 11095
+mem[33113] = 267232
+mem[29075] = 982
+mask = 1010XX00XXX1X111111X00011100X00100X1
+mem[22184] = 3304995
+mem[52883] = 286206091
+mem[17684] = 3033221
+mem[10660] = 834092
+mem[639] = 66342
+mem[10379] = 615664
+mem[47839] = 1155259
+mask = 00001X010110111110011X000X00100001XX
+mem[53353] = 219728
+mem[65333] = 4002063
+mem[3492] = 891
+mem[6417] = 6050475
+mem[10047] = 53027987
+mem[57541] = 37059
+mem[29203] = 79275
+mask = 1X00X0X0011XX10X1110X0001010001X0X00
+mem[56853] = 3481
+mem[48818] = 70504232
+mask = 000XX1X01110X1100100011110X010X0X010
+mem[8087] = 894158
+mem[12413] = 146584
+mem[6706] = 2582
+mem[8095] = 30280
+mem[30578] = 163689
+mask = 0000X0X0011X00101010X10XX00001101XX1
+mem[16238] = 883
+mem[60302] = 1463
+mem[52026] = 501033
+mem[21101] = 963003
+mem[49342] = 37665
+mask = 1000010X01X00XX010X01100110001100111
+mem[21667] = 384155
+mem[54343] = 6134066
+mem[17373] = 80965
+mem[34043] = 15468883
+mem[855] = 750
+mem[3492] = 4885002
+mask = 1000X00001X10X01X0100X0111011101X001
+mem[38410] = 38053819
+mem[64257] = 7130584
+mem[23001] = 90831
+mem[29203] = 31460429
+mask = 00X000X100101111X11XXX000110X10X0011
+mem[53226] = 3680
+mem[43919] = 7913
+mem[23001] = 113363252
+mem[24130] = 594
+mask = X000X001XXX01111111X1101010X01X00001
+mem[56633] = 195050663
+mem[45339] = 58339099
+mem[34669] = 28208072
+mem[33167] = 107343266
+mem[55625] = 20752
+mem[56130] = 27956180
+mask = 000011X00X0XX110111X001X10111010X00X
+mem[10675] = 342846
+mem[1723] = 1470723
+mem[51218] = 14886517
+mem[25654] = 468441
+mem[22233] = 750318
+mem[10638] = 1940647
+mem[49663] = 3527
+mask = 00X0XX01X00011X1111011X0011X01X001X0
+mem[21769] = 95158
+mem[18925] = 465784126
+mem[57920] = 873
+mem[29516] = 1870546
+mem[56132] = 145637
+mem[39089] = 16016081
+mem[40777] = 111866962
+mask = 0101100X111001X00100X10101001101001X
+mem[46653] = 282150006
+mem[21001] = 26649672
+mask = 0000100X0X10X1X1111110X0X00X0000X1X1
+mem[57539] = 10584
+mem[54889] = 7790
+mem[50184] = 357116445
+mem[8050] = 8577
+mask = 11000000011XX01011011101100000XX0111
+mem[22120] = 2547919
+mem[64904] = 493040
+mem[17509] = 411541
+mem[6417] = 7691463
+mem[33118] = 840
+mask = 010010X001X00X111111011100X000X1X11X
+mem[65020] = 222328295
+mem[30448] = 4080
+mem[52883] = 592
+mem[13763] = 1508
+mask = 010110X00110011X100001X0001001110X00
+mem[44389] = 839
+mem[25975] = 395854
+mem[20373] = 16016219
+mem[23886] = 68934677
+mem[41201] = 518
+mem[17454] = 738127
+mem[56227] = 806
+mask = 00001X00X1100X101X010X11X0000X000111
+mem[9822] = 2044
+mem[24640] = 24948181
+mem[24791] = 7537
+mem[39152] = 2411
+mem[18584] = 348
+mem[45337] = 98555334
+mem[53797] = 31216158
+mask = 0X0010000110011X11X101100XXXX1X001X1
+mem[36788] = 26899502
+mem[57344] = 9033077
+mem[2296] = 313866362
+mem[57429] = 96331601
+mem[6101] = 34417
+mask = 0000X000011001101XX110110X1X011X0111
+mem[50776] = 68004929
+mem[43617] = 775267546
+mem[60477] = 1699097
+mem[53328] = 155946
+mem[58881] = 5866890
+mem[19724] = 24153
+mask = 10000XX0010100011010011101X1010X1010
+mem[1157] = 392051
+mem[32234] = 43930
+mem[3987] = 213349
+mem[17692] = 467627
+mem[42272] = 5070
diff --git a/input/14sample b/input/14sample
new file mode 100644
index 0000000..2e961e3
--- /dev/null
+++ b/input/14sample
@@ -0,0 +1,4 @@
+mask = 000000000000000000000000000000X1001X
+mem[42] = 100
+mask = 00000000000000000000000000000000X0XX
+mem[26] = 1