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Added day 13!

This commit is contained in:
Andrew Lalis 2021-12-13 08:43:06 +01:00
parent 5cbd3f0a0a
commit 572ecbc94d
4 changed files with 947 additions and 2 deletions
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4
source/app.d
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@ -1,7 +1,7 @@
import std.stdio; import std.stdio;
import day12.part1; import day13.part1;
void main() { void main() {
passagePathing(); transparentOrigami();
} }

833
source/day13/input.txt Normal file
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@ -0,0 +1,833 @@
296,446
559,232
754,329
1238,577
1155,754
378,674
1064,567
1310,206
171,82
1228,892
890,114
806,565
408,558
1210,347
53,845
636,836
907,133
1299,852
967,333
956,815
1238,471
1136,577
853,849
15,9
522,392
176,887
877,67
228,565
952,861
595,712
715,264
1043,854
1014,476
952,555
94,199
1019,297
915,259
242,338
1014,787
1236,770
654,16
453,562
964,892
1037,341
964,129
15,602
546,367
1089,422
1099,477
905,490
279,477
1078,404
1298,439
493,100
566,12
616,476
1110,668
1203,698
1022,810
1128,648
1128,849
967,490
70,114
1078,247
624,28
867,318
529,546
756,500
1046,690
1084,824
642,96
585,719
209,88
119,140
771,29
296,418
1146,520
1049,246
1141,861
1119,285
554,652
15,210
478,7
164,101
788,616
554,294
954,77
716,161
703,831
223,376
1139,812
771,128
131,478
895,649
300,79
1031,252
1014,642
668,439
550,228
904,450
937,277
867,352
1266,780
80,0
1208,325
1064,0
406,682
430,556
1195,29
1076,452
1178,616
527,570
320,31
373,165
358,339
453,105
668,217
788,866
232,404
862,502
929,553
813,47
982,838
1242,740
952,221
766,39
100,500
907,593
223,294
464,91
981,336
997,155
326,56
131,864
100,347
283,194
1067,548
1210,276
544,631
624,413
744,124
1222,124
1002,577
935,418
1248,690
964,450
808,505
1201,733
107,644
296,476
131,416
1002,836
222,196
1175,654
567,369
661,163
1293,61
1146,374
576,58
493,794
699,656
530,840
662,863
624,448
309,509
1109,777
420,666
482,414
992,136
296,787
87,21
1153,470
1283,357
354,367
276,680
1145,346
510,648
12,679
552,674
381,341
300,815
452,320
54,712
817,100
271,298
989,800
857,49
303,831
688,108
1149,234
604,892
274,71
753,826
258,359
382,406
87,873
350,442
68,154
445,88
750,266
328,654
185,740
247,604
554,515
691,673
782,338
453,497
1133,484
264,690
1218,218
177,410
365,343
239,873
431,600
85,180
371,327
507,716
962,214
1092,367
244,782
801,509
601,845
1022,252
882,376
266,791
164,569
1243,187
1027,700
1148,392
1216,880
1056,541
1195,542
408,448
977,94
358,787
554,276
475,82
12,889
554,379
1029,725
264,196
1101,88
83,492
202,616
758,674
299,509
788,115
1044,103
234,4
443,418
858,320
864,607
756,518
95,35
648,863
952,107
267,854
200,714
80,205
828,256
366,252
42,782
1159,495
1218,795
600,264
172,256
969,199
314,663
857,789
217,117
1280,555
1082,565
1297,199
634,2
249,490
132,616
1228,444
999,358
765,733
1156,190
813,847
311,358
907,73
1155,364
1173,329
289,343
944,642
922,469
256,53
251,593
306,662
666,375
488,894
1265,165
642,217
820,464
393,745
674,892
761,248
1210,547
343,378
294,562
853,368
74,770
371,460
105,24
1113,849
1039,746
264,756
507,194
656,166
289,551
984,464
1275,53
381,553
1,234
209,806
453,332
624,866
358,861
567,525
492,297
619,225
781,777
1160,777
174,374
234,562
557,182
760,442
30,866
1205,472
850,115
544,756
375,476
97,826
1139,292
654,81
296,225
796,452
880,338
407,290
68,311
329,558
42,334
562,228
1088,521
999,404
10,744
654,688
1071,873
231,707
264,652
0,793
1131,781
1053,810
959,831
1200,301
1185,49
296,252
308,836
967,516
1029,729
320,353
308,220
154,190
1081,516
780,840
1136,317
1138,480
443,318
587,74
475,44
482,256
639,716
581,308
1027,154
1,660
776,252
35,112
135,240
403,73
1231,458
1006,890
157,731
271,746
67,187
1134,455
927,596
36,271
343,113
408,446
890,452
425,760
765,777
709,397
642,455
939,327
446,607
1223,817
244,821
1223,425
1081,378
229,378
803,700
877,198
1231,436
745,460
550,754
1149,112
1066,112
320,703
1108,581
165,560
781,497
1266,114
249,154
5,267
1021,562
35,745
577,180
1019,149
87,369
454,108
428,376
1139,28
800,269
715,182
715,630
750,647
62,204
632,676
962,680
758,220
453,786
582,245
272,859
38,476
489,346
488,450
766,756
161,212
94,714
465,117
1056,247
944,252
222,890
1287,511
492,597
283,740
1250,14
211,495
686,339
1241,308
694,476
1031,417
490,430
216,183
157,175
1146,430
410,334
1250,873
313,259
807,511
686,28
781,546
556,329
1022,84
970,215
251,749
320,191
1300,519
1125,154
529,777
218,866
595,630
222,756
341,199
1108,313
1288,442
1228,17
1230,894
751,232
643,607
785,393
884,693
18,836
1184,556
311,404
452,726
1225,852
750,247
807,383
477,483
1014,252
346,129
433,67
967,113
37,252
1251,182
1054,332
596,330
867,399
375,253
443,399
382,187
594,161
1116,115
1248,204
1218,556
892,151
1128,829
387,712
510,269
594,385
283,567
366,642
155,754
88,770
882,294
639,516
592,810
373,185
562,666
69,623
594,598
199,169
477,35
482,480
1049,872
151,399
1029,281
211,477
341,186
1257,49
502,505
893,460
967,714
1238,201
1222,322
100,52
1019,0
944,532
15,885
1131,113
309,385
1002,220
1213,68
920,885
281,725
311,561
398,562
1191,551
437,833
62,662
1149,794
497,175
428,204
72,423
1084,518
653,212
607,253
1066,821
89,460
530,574
1225,42
952,787
643,287
488,24
200,180
699,208
1185,565
967,358
1218,99
497,399
82,450
1223,873
1022,686
1064,327
976,353
15,233
601,117
509,509
405,852
405,404
1061,154
489,782
642,663
611,602
291,297
1046,756
733,180
110,711
291,8
1029,169
92,218
821,782
1205,291
283,292
882,204
656,365
822,0
243,548
443,417
22,442
288,686
1086,14
999,561
974,758
534,642
407,436
418,151
1029,633
351,831
669,247
1156,704
60,780
197,45
759,331
1295,806
490,414
997,259
22,676
989,94
246,121
161,334
279,417
668,5
1179,416
281,729
15,806
361,32
126,338
365,114
365,623
1099,417
44,114
756,276
724,154
373,281
1257,845
796,442
1226,450
592,612
162,840
530,54
1287,383
1242,647
827,82
221,422
426,201
756,618
723,74
234,452
211,417
857,105
1027,140
383,596
283,700
929,341
306,641
1310,345
94,266
1206,698
667,287
1029,261
835,44
631,63
488,870
433,696
728,649
454,786
709,845
366,810
316,317
1006,4
246,327
363,893
676,450
346,892
457,401
654,878
313,35
412,444
1002,317
104,666
1029,617
42,560
1146,101
355,206
1295,602
549,248
676,2
1111,469
1093,565
390,84
161,660
0,345
1149,346
723,820
1036,599
544,855
1088,4
530,392
1275,112
1019,393
1166,625
283,754
542,81
821,112
862,392
333,94
420,452
554,824
699,292
1298,889
436,866
788,278
12,96
1275,73
912,562
599,698
586,602
1238,319
560,647
1046,652
902,448
80,689
242,444
554,376
281,261
436,815
1297,291
201,49
234,332
796,890
232,490
679,319
624,481
288,84
232,647
11,287
231,187
244,429
125,329
0,206
298,817
1299,735
1216,714
994,317
291,0
221,472
72,649
171,866
619,669
248,506
1149,334
499,364
490,325
272,411
607,831
313,739
318,136
453,796
1111,357
609,729
1064,110
739,492
817,794
217,565
218,367
830,72
1280,866
418,743
329,784
60,598
161,682
932,276
161,234
600,859
656,878
82,892
663,317
904,444
1228,450
917,297
503,383
472,648
88,124
37,642
1210,742
248,836
879,742
1044,791
1081,488
768,81
363,448
872,711
562,676
1004,641
144,625
653,682
756,416
1010,815
390,242
191,14
194,563
1082,329
229,516
485,771
162,480
1191,343
171,812
10,822
1138,256
710,182
1297,647
182,648
1014,446
165,346
748,228
fold along x=655
fold along y=447
fold along x=327
fold along y=223
fold along x=163
fold along y=111
fold along x=81
fold along y=55
fold along x=40
fold along y=27
fold along y=13
fold along y=6

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source/day13/part1.d Normal file
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module day13.part1;
import std.file;
import std.stdio;
import std.string;
import std.conv;
import std.algorithm;
import std.array;
struct Point {
int x;
int y;
}
enum LineType {
HORIZONTAL,
VERTICAL
}
struct Line {
LineType type;
int value;
}
Point[] foldOver(ref Point[] points, Line line) {
Point[] newPoints = [];
void add(ref Point[] pts, Point p) {
if (!canFind(pts, p)) pts ~= p;
}
foreach (i, point; points) {
if (line.type == LineType.HORIZONTAL) {
if (point.y < line.value) {
add(newPoints, point);
} else {
int reflectedY = line.value - (point.y - line.value);
if (reflectedY < line.value && reflectedY >= 0) {
add(newPoints, Point(point.x, reflectedY));
}
}
} else if (line.type == LineType.VERTICAL) {
if (point.x < line.value) {
add(newPoints, point);
} else {
int reflectedX = line.value - (point.x - line.value);
if (reflectedX < line.value && reflectedX >= 0) {
add(newPoints, Point(reflectedX, point.y));
}
}
}
}
return newPoints;
}
void print(Point[] points) {
int maxX = points.map!(p => p.x).maxElement;
int maxY = points.map!(p => p.y).maxElement;
foreach (y; 0..maxY + 1) {
foreach (x; 0..maxX + 1) {
bool pointExists = points.any!(p => p.x == x && p.y == y);
writef("%c", pointExists ? '#' : '.');
}
writeln;
}
}
void transparentOrigami() {
string[] textBlocks = readText("source/day13/input.txt").strip.split("\r\n\r\n");
writeln(textBlocks);
Point[] points = textBlocks[0].split("\n")
.filter!(line => line.strip.length > 0)
.map!((line) {
string[] parts = line.strip.split(",");
return Point(parts[0].to!int, parts[1].to!int);
}).array;
Line[] lines = textBlocks[1].split("\n")
.map!((line) {
string[] parts = line.strip.split("=");
LineType type = parts[0][$ - 1] == 'x' ? LineType.VERTICAL : LineType.HORIZONTAL;
int value = parts[1].to!int;
return Line(type, value);
}).array;
points.writeln;
lines.writeln;
foreach (i, line; lines) {
points = foldOver(points, line);
writefln("After fold %d, %d dots are visible.", i + 1, points.length);
}
print(points);
}

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source/day13/test_input.txt Normal file
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6,10
0,14
9,10
0,3
10,4
4,11
6,0
6,12
4,1
0,13
10,12
3,4
3,0
8,4
1,10
2,14
8,10
9,0
fold along y=7
fold along x=5