Solve 2020/14

4 years ago · 93375b828f
parent 6c0caca1e1
commit 93375b828f
5 changed files with 694 additions and 0 deletions
--- a/2020/14/example
+++ b/2020/14/example
@ -0,0 +1,4 @@
+mask = XXXXXXXXXXXXXXXXXXXXXXXXXXXXX1XXXX0X
+mem[8] = 11
+mem[7] = 101
+mem[8] = 0
--- a/2020/14/example.2
+++ b/2020/14/example.2
@ -0,0 +1,4 @@
+mask = 000000000000000000000000000000X1001X
+mem[42] = 100
+mask = 00000000000000000000000000000000X0XX
+mem[26] = 1
--- a/2020/14/input
+++ b/2020/14/input
@ -0,0 +1,572 @@
+mask = 01X11X10X10110110X111X11010X1X101010
+mem[19409] = 3025
+mem[40104] = 798480382
+mem[25359] = 905
+mask = 01011X111100XX1100X1X10X110000000000
+mem[55479] = 930785
+mem[25548] = 130263864
+mem[60518] = 202648
+mem[11955] = 1138
+mem[45248] = 753
+mask = 00XX10001XXX00101X1XX1101000010X0010
+mem[2050] = 27965
+mem[5662] = 110507779
+mem[60807] = 1608
+mask = 000110101100XX10X01000X010X000010100
+mem[28713] = 1039
+mem[22733] = 182274602
+mem[21460] = 12248397
+mem[60257] = 103
+mem[13722] = 137279
+mem[2117] = 208446548
+mask = 100110111X011X1X10110X11010001X11XX0
+mem[29709] = 6606
+mem[27812] = 143567051
+mem[3595] = 478522065
+mem[13123] = 7445318
+mem[37070] = 32452
+mem[60140] = 47608
+mem[21316] = 69201021
+mask = X10X0010110000111111X0X11X10X1000111
+mem[29528] = 3980
+mem[41054] = 274606
+mem[34884] = 265241899
+mem[7496] = 228368
+mem[35014] = 109110
+mem[40696] = 172101503
+mask = 010X011010X0001X11101011X1X100010100
+mem[23210] = 3864280
+mem[53761] = 5046
+mem[6853] = 1214
+mem[45297] = 219
+mem[33797] = 1843462
+mask = 01011011110011110X0X01110110010XX000
+mem[15509] = 16472647
+mem[19332] = 526724681
+mask = 0101X0101100X01X111X1X11X000X1X1X110
+mem[16393] = 122368236
+mem[18852] = 4351408
+mem[56526] = 780
+mem[46701] = 31085562
+mem[53459] = 47134
+mem[19409] = 7629114
+mem[47891] = 76573711
+mask = 000110X0010010X0X010XX110000X0X1000X
+mem[35342] = 1095
+mem[56466] = 3462270
+mem[31124] = 204698678
+mem[104] = 2115
+mem[22733] = 154721
+mask = 00X100X01XX000101X1001110000010XX110
+mem[44047] = 6823624
+mem[11955] = 242152
+mem[41039] = 515174779
+mask = 0101101X110X10110X11101011X00110XXXX
+mem[46716] = 52535895
+mem[20578] = 851818
+mem[7307] = 1658
+mem[59777] = 7566837
+mem[38136] = 6
+mem[18835] = 95379
+mem[37574] = 28195477
+mask = 010XXX101X0X0011X1100X1001110X01X100
+mem[17831] = 4467
+mem[45439] = 61064
+mem[43070] = 291981105
+mem[9562] = 725
+mem[18574] = 82455219
+mem[53761] = 2223
+mask = 0001X010X1001010XX10011110000011000X
+mem[24954] = 229575
+mem[49643] = 118597
+mem[40891] = 218656479
+mem[6549] = 655
+mem[16413] = 105021
+mask = 01X0X01010010X111X1001X0X1X1X0000110
+mem[24722] = 3306225
+mem[18574] = 2046331
+mem[51991] = 2879
+mask = 010X10001X00XX10000000101100000X0000
+mem[64694] = 69415191
+mem[42979] = 1589
+mem[49282] = 199
+mem[3987] = 2386
+mem[64631] = 17661
+mask = 011XXX1010010111101X0000100100X10XX0
+mem[21201] = 341993
+mem[61134] = 328
+mem[19716] = 463044
+mem[53800] = 23668576
+mem[46317] = 368717
+mem[3978] = 2699
+mask = X10X01X011001011X111101010X0XX111111
+mem[5567] = 9644235
+mem[50029] = 4717
+mem[34043] = 119207
+mem[35949] = 665131137
+mem[58233] = 98752
+mask = 0X00001011X0001111X000100X0000XX0110
+mem[28818] = 809
+mem[20113] = 604
+mem[58178] = 11229
+mem[9389] = 38294680
+mem[34657] = 8016112
+mem[10161] = 1585984
+mem[8020] = 1403857
+mask = 01011011110XX0110111111101100X000X01
+mem[47451] = 201798
+mem[62498] = 61888
+mem[49564] = 16728
+mem[60513] = 23392513
+mem[36774] = 56575
+mem[22431] = 70709
+mask = 011X100011000X1X10X0101100X10X011111
+mem[41938] = 34906
+mem[62853] = 221817
+mem[50173] = 471027372
+mem[55286] = 4561108
+mask = 1X010X0011010000X1100X000101X101X000
+mem[22998] = 62382
+mem[18574] = 57889052
+mem[57700] = 1018
+mask = X1XX0X1011001011111X101X111001111111
+mem[34453] = 6483
+mem[49122] = 391290
+mask = 01010000000100110XX000011X00X01XX10X
+mem[23870] = 19517
+mem[24291] = 616878
+mem[12134] = 1990123
+mem[26637] = 55962054
+mem[47968] = 712481177
+mem[20878] = 242502
+mem[30722] = 1568
+mask = 11X11111X100XX1000100111100000000010
+mem[35335] = 59630
+mem[63185] = 11256526
+mem[30722] = 266092278
+mem[9776] = 63532545
+mask = 10010010010X1010111X11001000X110101X
+mem[12312] = 4029860
+mem[27593] = 42705942
+mem[46156] = 27895
+mem[64088] = 1408576
+mem[50342] = 15980145
+mem[46315] = 29427
+mem[47451] = 18865
+mask = 011111001X0XX01010100110X11000X01100
+mem[1293] = 837
+mem[29000] = 10697
+mask = XX0X0010X1001010XX11X01110X101101100
+mem[42918] = 1028
+mem[2608] = 3093
+mem[21904] = 6098595
+mem[41278] = 1039294
+mem[53102] = 858102784
+mask = 0X0110X01100X010X0X0001X10X00XX00000
+mem[20578] = 860568571
+mem[52466] = 143792
+mem[10261] = 182
+mask = 0X0110101100X011XX111X111110111X11XX
+mem[5752] = 37841428
+mem[31368] = 1094581
+mask = 000X11101X01001110100001000X0100100X
+mem[56372] = 1046359
+mem[19541] = 315663570
+mem[37436] = 437380
+mem[54334] = 241690746
+mem[16559] = 3127549
+mem[59609] = 176914004
+mask = 110101X01XX1000X0XX0100000X0000XX101
+mem[1033] = 8174
+mem[49587] = 107787
+mem[1572] = 430
+mem[49873] = 115828687
+mem[24389] = 2707208
+mem[30170] = 91827506
+mask = 01XX01001XX10010X0101001000000011101
+mem[26015] = 198698
+mem[50136] = 19382
+mem[16413] = 103882
+mem[8340] = 2066093
+mask = XX01101X1101101XX01111X01X1100X00100
+mem[42378] = 518494
+mem[13927] = 94055
+mem[48225] = 15652034
+mask = 000100X0110X101X0X1XXX1X10110011101X
+mem[65006] = 6769
+mem[46625] = 5473325
+mem[22440] = 617624684
+mem[24954] = 719974
+mem[53626] = 62067
+mask = 00011XX01101X01X1010X11X10000X00X0X0
+mem[43072] = 106139234
+mem[53459] = 26813614
+mem[31162] = 184146764
+mask = 0X01X0101X00001XXX10X11X000001000010
+mem[5467] = 121320
+mem[63724] = 11067492
+mem[57246] = 315
+mem[16413] = 2008242
+mem[10240] = 11073
+mem[24282] = 618660016
+mask = 1101111011000010101X1101X0X0001X1011
+mem[61598] = 627237127
+mem[16057] = 235475116
+mem[5662] = 6226
+mem[61721] = 26023344
+mem[58178] = 209547
+mem[59687] = 141941
+mem[9548] = 1392254
+mask = 00011X1000X01010011X01111X0110X10100
+mem[13185] = 300556
+mem[51203] = 17097
+mem[59687] = 8787507
+mem[12337] = 124607
+mem[46043] = 4378256
+mask = 1100X100110100100110X10X000X01111101
+mem[17458] = 420459
+mem[46315] = 142385
+mem[7273] = 58415
+mem[49604] = 57549
+mem[33375] = 12460422
+mem[61540] = 7752
+mask = X1X11XXX1100X010X0100100000000X00010
+mem[28889] = 13691764
+mem[27546] = 355436
+mem[45337] = 10614
+mem[64088] = 960
+mem[39291] = 3019
+mem[30722] = 1976602
+mem[18725] = 299
+mask = 0X111X1011000X101010X0X001X100XX1010
+mem[5532] = 413573
+mem[7707] = 78463710
+mem[46156] = 25164851
+mem[17354] = 15295191
+mask = 000110100X0X10100X100011XX0010010000
+mem[18725] = 7003
+mem[49536] = 49752
+mem[33519] = 116272721
+mem[46701] = 253380665
+mask = 000X001001001XXX101XX00X0101X1010000
+mem[57459] = 792510
+mem[10350] = 217210394
+mem[43612] = 178868
+mem[2374] = 42534899
+mem[40891] = 621
+mem[7270] = 1014999
+mem[49038] = 1657373
+mask = 00XX10100001100X01000110001001010X10
+mem[7270] = 1904
+mem[33267] = 171621958
+mem[42531] = 623
+mask = 011111001100001X00X0010X10010010001X
+mem[59756] = 19646
+mem[45248] = 182118
+mem[49395] = 186
+mem[46043] = 1875998
+mem[42378] = 2150393
+mem[16423] = 449813446
+mask = 00X10X1001001010111X0X11100XX0101X01
+mem[42378] = 11316
+mem[6217] = 448726
+mem[56349] = 105698
+mem[18523] = 6560236
+mask = 0X01101011000X101111X1110010X1110111
+mem[57685] = 1052364113
+mem[42200] = 1624
+mem[64281] = 162750
+mem[53459] = 900417618
+mem[44010] = 311326
+mem[38385] = 168338
+mem[64234] = 715
+mask = 0110001010X1001X111000XX01X110X1000X
+mem[46270] = 413222
+mem[20358] = 301418973
+mask = 0101X01010000X1X111001000X010000X100
+mem[25549] = 9478586
+mem[27938] = 186993583
+mem[10014] = 630139
+mem[50316] = 22183454
+mask = 00X10XX0110010100X10XX11X01000100010
+mem[51762] = 575
+mem[39895] = 33305
+mem[19768] = 31036515
+mem[30918] = 522221
+mem[26371] = 790132
+mem[43705] = 13814
+mask = 00XXX010X1100010100101110101X0001110
+mem[12495] = 2801000
+mem[43811] = 35764
+mem[59173] = 235362
+mem[50677] = 13747007
+mem[47458] = 49520
+mask = 00X1101X1100X010X010001010000000010X
+mem[19737] = 309
+mem[10289] = 1391
+mem[44222] = 202053013
+mem[32818] = 57015
+mask = XX111010X10XX0101010XX00000X00100X01
+mem[25062] = 92115406
+mem[40507] = 8539848
+mem[6853] = 1555113
+mem[59566] = 55734
+mem[29440] = 3860
+mem[2339] = 1687
+mask = X0X100100100X000X0011000100100110001
+mem[62983] = 496942
+mem[55239] = 31959819
+mem[23037] = 185
+mem[14426] = 11052660
+mem[59756] = 11483028
+mask = 0X1X101011X0101X0X100110100110X101XX
+mem[9761] = 26687118
+mem[152] = 1818
+mask = 01X110X01010001X1110XXX0000100X100X0
+mem[46327] = 780262
+mem[11424] = 1003003
+mask = 010011XX100X0011X1XX000X01X10X011110
+mem[40928] = 10697
+mem[989] = 22449916
+mem[9034] = 107225
+mask = 010100X0X001001101100XX110X0000X10X0
+mem[50403] = 60110
+mem[1465] = 9126
+mem[4598] = 348452
+mem[26661] = 17672110
+mask = 00X110101XX00010100X0010010011X10010
+mem[38295] = 20183
+mem[61069] = 22691
+mem[51394] = 7278100
+mem[18711] = 34474
+mem[52888] = 1962576
+mask = 1001001X0X001010101X0110XXX001XX100X
+mem[33226] = 3641501
+mem[2376] = 72068973
+mem[57257] = 11382653
+mem[22489] = 47282
+mem[45359] = 38362
+mask = 010X1X10010X101X01111010111110111011
+mem[26980] = 755824
+mem[47763] = 385
+mem[23332] = 30083831
+mem[32975] = 61896119
+mask = XX0110111101X011X011X0XXX10000011100
+mem[29709] = 711754376
+mem[36513] = 71516
+mem[7293] = 5061813
+mem[60256] = 419151
+mask = 0101101011000XX1111111X001100100XX00
+mem[19475] = 35852
+mem[57183] = 6494332
+mem[1327] = 872346
+mem[2543] = 943
+mem[2188] = 868813
+mem[29387] = 209125695
+mask = 00X1X0101X1000X01X010X1X01100X0X1101
+mem[51955] = 196066365
+mem[38207] = 15671526
+mem[26980] = 75520251
+mem[11077] = 161630247
+mem[26456] = 30666501
+mem[19737] = 9386
+mask = 1101011010110X0X01101XX001X0X001X001
+mem[49292] = 858273
+mem[11497] = 884831
+mem[49282] = 93065
+mem[54031] = 862594
+mask = 0X01011010X1X01111X0X0X00X11X1010100
+mem[58536] = 4031842
+mem[11621] = 155458283
+mem[8786] = 12859
+mask = 00010010XXX000X010010X1XX001X0X01100
+mem[45429] = 122467
+mem[57256] = 759
+mem[3687] = 384128816
+mem[56464] = 10758724
+mem[11869] = 652805159
+mem[50173] = 75914445
+mask = 0001001001001010111XX10X1X0XX0111101
+mem[5809] = 743780
+mem[52067] = 806
+mem[12750] = 22132
+mem[13019] = 654
+mask = 00X110X01100101X00100X1X00XX00100001
+mem[2117] = 4067660
+mem[2068] = 9851885
+mem[48662] = 52185630
+mem[24246] = 72048
+mem[25978] = 5182633
+mask = 010X1010X0X0001111100X001101X01X0XX0
+mem[10242] = 1118
+mem[57601] = 525
+mem[38099] = 930509
+mask = 10111101110X0X10001001X00001001000X1
+mem[50741] = 59787235
+mem[1588] = 218533
+mem[33080] = 182579
+mem[3978] = 1591079
+mem[62070] = 15472
+mask = 0101100X1100X0X10110X010000X000X00X1
+mem[3814] = 788124
+mem[63265] = 215577374
+mem[57364] = 1311024
+mem[36364] = 3985
+mem[18564] = 4526
+mem[23647] = 376609
+mask = 001XX00011010010111000101X100X0011X0
+mem[61429] = 6896
+mem[22094] = 1966698
+mask = X00110111101XX111011101X011010100X01
+mem[36214] = 310642
+mem[59733] = 1160
+mem[10909] = 1820
+mem[25225] = 51102962
+mem[35074] = 514484736
+mem[21460] = 3630
+mask = 1001001X01001010XX10111001XX1X1X1000
+mem[53608] = 6145
+mem[44618] = 302105
+mem[50955] = 12609449
+mem[48282] = 22035626
+mask = 01X1XX001XXX001XX0100111000000001100
+mem[47458] = 4534
+mem[26444] = 4150059
+mem[10366] = 1061
+mem[51657] = 2817023
+mem[35995] = 1064419
+mem[38295] = 148703436
+mask = 01X0001010010X1110X0000010111X001000
+mem[26046] = 2672378
+mem[1080] = 682
+mem[2151] = 737
+mask = 110X0100110100X001X0X1XXX100011101X0
+mem[56044] = 527135884
+mem[39296] = 107094645
+mem[61785] = 1261
+mask = 01001X00100X0011010000000101000XX101
+mem[54752] = 16579540
+mem[36330] = 1696582
+mem[1435] = 240113842
+mem[49758] = 7811
+mem[51729] = 2543212
+mem[10909] = 13139
+mask = 0X0XXX100001101X011010101000011001XX
+mem[58487] = 9986
+mem[7175] = 3371969
+mem[14294] = 10275
+mem[36225] = 13168
+mem[7934] = 48879
+mem[47891] = 1571293
+mem[18711] = 399
+mask = X1010XX01X01001X01101010X1X00001X010
+mem[62247] = 18380710
+mem[20715] = 15548870
+mem[61924] = 28821546
+mem[40119] = 181518508
+mem[50251] = 59934
+mask = XXX1011X11X100X1X110001011X001100001
+mem[13627] = 4734
+mem[36208] = 48295
+mem[37672] = 184327969
+mem[60518] = 9137
+mem[46168] = 105126453
+mask = 1X111101110X0010001000XX000100XXX011
+mem[4455] = 17333982
+mem[58592] = 931411
+mem[61752] = 198443
+mem[183] = 808
+mask = XX010010010XX0101011111111010011X100
+mem[6221] = 256009562
+mem[3528] = 422478
+mem[16002] = 6328770
+mask = 0X01X00011001010XX000010100000100010
+mem[31570] = 32237
+mem[14971] = 846258186
+mem[18978] = 1202
+mem[15368] = 120674
+mem[13185] = 22420
+mask = 010110111101101XX011X11XX11X00X00X00
+mem[59330] = 628
+mem[9283] = 58883
+mem[44010] = 387833048
+mask = 010010101001X1111010111X000X00X0X110
+mem[50633] = 751888
+mem[11056] = 31979
+mem[50741] = 4724
+mem[40028] = 7336181
+mem[42263] = 6863
+mask = 0001X010110000X00010010X10000XX10100
+mem[20546] = 8708
+mem[36908] = 234294
+mem[63185] = 1408
+mem[57531] = 1054
+mem[13722] = 1045167819
+mem[4617] = 3519205
+mask = 00111000X10010X10010X01010X00010010X
+mem[46693] = 4740
+mem[17824] = 884
+mem[54997] = 339096
+mem[2117] = 26803
+mem[20] = 84635057
+mask = 0101XXX01100X011011X010000000X00X100
+mem[40142] = 140297
+mem[53459] = 5575659
+mem[57435] = 69641959
+mem[28563] = 433881
+mem[59188] = 230341
+mem[26483] = 151116806
+mask = 110101X01XX100X10110001XX1X0X01000X1
+mem[37526] = 454911
+mem[35793] = 3340
+mem[54537] = 630806
+mem[58456] = 115228
+mem[59172] = 13363
+mask = 010110X0110000101010X001111X0X010010
+mem[45969] = 1736711
+mem[2487] = 610736260
+mem[54173] = 453
+mem[55144] = 2748104
+mem[52466] = 6109568
+mem[31890] = 3977366
+mask = 01011001110000X101100X00X00X10010000
+mem[64336] = 3971537
+mem[60265] = 85267
+mem[24597] = 7455656
+mem[34924] = 703390248
+mem[40391] = 328312
+mem[49255] = 1117186
+mask = 110X0100101100X1011010101X0X11X11010
+mem[31313] = 789405
+mem[7934] = 1803
+mem[36190] = 1836611
+mask = X0010010010010101X1X1X1010X111X010XX
+mem[4017] = 64210
+mem[40696] = 58930789
+mem[18166] = 195479433
+mem[41257] = 40207
+mem[40948] = 1058796
+mem[30803] = 486
+mem[29709] = 72337
+mask = 000X101000X110X001X00110X1X0011X0XX1
+mem[11077] = 1653
+mem[2376] = 77389
+mem[19561] = 4876923
+mem[32851] = 538156
+mem[38532] = 1110
+mask = X101101011X010111110X0111001X101010X
+mem[44618] = 13980
+mem[10366] = 711247
+mem[4942] = 74171
+mem[25306] = 350133
+mem[21409] = 27748
+mask = 00011010X1001010XXX0001110000001011X
+mem[5809] = 1082
+mem[36908] = 180
+mem[59172] = 196430412
+mem[60137] = 1388
+mem[49643] = 1887
+mask = 01011010X10000X1111111111XX00101111X
+mem[56344] = 1237
+mem[23638] = 37922654
+mem[20307] = 593227321
--- a/2020/14/solution1.js
+++ b/2020/14/solution1.js
@ -0,0 +1,46 @@
+const fs = require("fs");
+
+const input = fs.readFileSync("input", "utf-8").trim().split("\n");
+
+function main() {
+  // original mask string
+  let mask = null;
+  const memory = [];
+  for (const line of input) {
+    if (line.startsWith("mask")) {
+      mask = line.slice(7);
+    } else {
+      const address = parseInt(line.slice(4));
+      const num = BigInt(parseInt(line.split(" = ")[1]));
+      memory[address] = apply(num, mask);
+      // debug(num, mask);
+    }
+  }
+  const sum = memory.reduce((a, b) => a + b, 0n);
+  console.log("Solution:");
+  console.log(sum.toString());
+}
+
+function debug(value, mask) {
+  const result = apply(value, mask);
+  console.log("=".repeat(18), " DEBUG ", "=".repeat(18));
+  console.log(`value:  ${numToBin(value)}  (decimal ${value})`);
+  console.log(`mask:   ${mask}`);
+  console.log(`result: ${numToBin(result)}  (decimal ${result})`);
+}
+
+function numToBin(num) {
+  return num.toString(2).padStart(36, "0");
+}
+
+function binToNum(bin) {
+  return BigInt(parseInt(bin, 2));
+}
+
+function apply(num, mask) {
+  num = num & binToNum(mask.replaceAll("X", 1));
+  num = num | binToNum(mask.replaceAll("X", 0));
+  return num;
+}
+
+main();
--- a/2020/14/solution2.js
+++ b/2020/14/solution2.js
@ -0,0 +1,68 @@
+const fs = require("fs");
+
+const input = fs.readFileSync("input", "utf-8").trim().split("\n");
+
+function main() {
+  // original mask string
+  let sum = 0n;
+  let mask = null;
+  const memory = [];
+  for (const line of input) {
+    if (line.startsWith("mask")) {
+      mask = line.slice(7);
+    } else {
+      const sourceAddress = BigInt(parseInt(line.slice(4)));
+      const num = BigInt(parseInt(line.split(" = ")[1]));
+      const addresses = apply(sourceAddress, mask);
+      for (const address of addresses) {
+        if (typeof memory[address] !== "undefined") {
+          sum -= memory[address];
+        }
+        memory[address] = num;
+        sum += num;
+      }
+      // debug(sourceAddress, mask, addresses);
+    }
+  }
+  console.log("Fill memory done");
+  console.log("Solution:");
+  console.log(sum.toString());
+}
+
+function debug(address, mask, addresses) {
+  console.log("=".repeat(18), " DEBUG ", "=".repeat(18));
+  console.log(`address:  ${numToBin(address)}  (decimal ${address})`);
+  console.log(`mask:     ${mask}`);
+  console.log(`result: `);
+  for (const address of addresses) {
+    console.log(`${numToBin(address)}  (decimal ${address})`);
+  }
+}
+
+function numToBin(num) {
+  return num.toString(2).padStart(36, "0");
+}
+
+function binToNum(bin) {
+  return BigInt(parseInt(bin, 2));
+}
+
+function apply(address, mask) {
+  address = address | binToNum(mask.replaceAll("X", 0));
+  address = numToBin(address);
+  let addresses = [""];
+  for (let i = 0; i < address.length; i++) {
+    const bit = address[i];
+    const maskBit = mask[i];
+    if (maskBit === "X") {
+      const zeroConcated = addresses.map((adr) => adr + "0");
+      const oneConcated = addresses.map((adr) => adr + "1");
+      addresses = [...zeroConcated, ...oneConcated];
+    } else {
+      addresses = addresses.map((adr) => adr + bit);
+    }
+  }
+  return addresses.map(binToNum);
+}
+
+main();