commit 68ba4ca5e9020a2064f94f6bbfaa711ad0a1a935
parent 734396f1e1a6ae6e7c9560fa3232e7baf3601f49
Author: bsandro <brian.drosan@gmail.com>
Date: Sun, 19 Dec 2021 23:36:42 +0200
Day 19, puzzle 1 WIP (scared to lose progress lol)
Diffstat:
| A | day19/Makefile | | | 25 | +++++++++++++++++++++++++ |
| A | day19/input.txt | | | 804 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | day19/main.c | | | 29 | +++++++++++++++++++++++++++++ |
| A | day19/puzzle.c | | | 158 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | day19/test.txt | | | 136 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
5 files changed, 1152 insertions(+), 0 deletions(-)
diff --git a/day19/Makefile b/day19/Makefile
@@ -0,0 +1,25 @@
+NAME=$(shell basename ${PWD})
+SRC=$(wildcard *.c ../common/*.c)
+DEPS:=$(wildcard *.h ../common/*.h)
+OBJ:=$(SRC:.c=.o)
+CFLAGS=-O2 -std=c99 -Werror -Wall -Wextra -I. -I../common
+LDFLAGS=-lc
+
+all: $(NAME)
+
+.PHONY: clean run
+
+clean:
+ rm -f $(OBJ) $(NAME)
+
+%.o : %.c $(DEPS)
+ @$(CC) $(CFLAGS) -c $< -o $@
+
+$(NAME): $(OBJ)
+ @$(CC) $(OBJ) -o $@ $(LDFLAGS)
+
+run: $(NAME)
+ @./$(NAME) input.txt
+
+test: $(NAME)
+ @./$(NAME) test.txt
diff --git a/day19/input.txt b/day19/input.txt
@@ -0,0 +1,804 @@
+--- scanner 0 ---
+328,-702,-460
+-786,-700,353
+416,571,609
+487,-724,-505
+593,-619,491
+-526,474,399
+247,-727,-523
+-750,-624,-790
+796,689,-767
+766,688,-823
+741,764,-835
+-916,713,-783
+-742,-762,-708
+629,-657,378
+-540,521,304
+568,-599,459
+441,481,636
+-457,540,428
+-910,550,-662
+-784,-650,-694
+-874,-840,421
+-3,-12,-71
+-800,-738,421
+-844,654,-686
+477,598,648
+
+--- scanner 1 ---
+135,1,-54
+895,551,601
+-393,818,-781
+-278,809,-841
+-409,-507,427
+699,705,-637
+732,522,-710
+-331,753,-812
+-510,-596,-424
+593,-279,757
+785,-655,-330
+766,-738,-454
+-1,124,94
+863,511,718
+-579,-621,-358
+832,-669,-425
+756,-285,636
+-487,-483,539
+-582,513,809
+677,658,-649
+652,-351,660
+-684,-548,-420
+-693,573,775
+-573,-397,416
+871,666,635
+-521,573,821
+
+--- scanner 2 ---
+420,706,-547
+-463,-451,382
+592,-360,835
+565,-579,836
+542,709,759
+-555,-446,456
+-763,656,-604
+-385,-534,419
+-695,716,-551
+-769,-416,-710
+99,56,-37
+-742,412,442
+629,813,693
+-613,-475,-640
+424,690,-512
+-62,-58,56
+-594,433,458
+-737,597,-642
+-567,444,499
+-664,-447,-778
+736,683,716
+865,-748,-836
+897,-799,-819
+845,-863,-748
+591,-483,766
+381,557,-439
+
+--- scanner 3 ---
+345,459,753
+-613,621,-540
+464,478,691
+601,-692,717
+-642,-779,-665
+470,-697,-820
+570,261,-770
+77,-114,37
+726,-736,687
+-507,-674,539
+553,-821,-736
+-611,426,665
+-463,-783,-641
+-618,569,-574
+-558,-811,-732
+-682,599,-515
+-319,-627,490
+-55,-17,-58
+444,-739,-785
+382,288,-702
+-384,-726,460
+356,615,698
+-397,459,628
+654,-596,605
+-621,396,618
+452,311,-673
+
+--- scanner 4 ---
+332,-333,-452
+-487,-800,717
+-592,843,876
+595,-810,841
+304,556,-441
+460,797,974
+-64,-30,10
+638,698,966
+-611,-702,-364
+-607,-805,-360
+-652,661,872
+-616,944,-495
+-504,696,939
+440,-482,-470
+582,920,947
+628,-709,865
+-574,-801,582
+451,-794,849
+90,52,114
+-655,-814,-359
+330,538,-496
+-540,-833,787
+-738,887,-501
+327,-359,-454
+436,610,-517
+-547,857,-467
+
+--- scanner 5 ---
+622,-797,923
+522,552,-282
+701,-659,955
+629,-698,-500
+676,-686,-478
+-684,-379,-392
+487,-694,959
+637,586,-306
+482,669,-314
+-30,37,138
+-440,619,779
+-424,-496,867
+-350,-496,969
+-482,633,891
+-308,708,-584
+-767,-503,-411
+727,768,865
+-438,-428,829
+-314,587,-421
+493,-759,-445
+720,622,751
+-380,611,-525
+-698,-474,-345
+-474,715,753
+123,-117,40
+658,715,848
+
+--- scanner 6 ---
+-717,498,-633
+610,701,547
+595,624,725
+-161,80,-68
+-817,-346,834
+-864,451,-668
+613,-829,533
+466,476,-568
+622,-588,-766
+-815,-405,-717
+21,-34,-63
+-754,-482,-740
+-741,343,476
+-712,385,605
+301,522,-500
+-838,-418,-811
+-761,-375,781
+-687,409,-737
+738,611,608
+588,-763,602
+636,-527,-709
+-826,-406,719
+-754,324,575
+284,374,-561
+675,-446,-708
+540,-767,428
+
+--- scanner 7 ---
+-752,839,276
+317,510,-449
+-668,-536,-581
+-721,-648,-677
+-977,-684,474
+-852,889,-682
+231,555,-478
+347,-426,375
+467,544,734
+294,492,-637
+-870,742,326
+268,-779,-749
+-858,-622,493
+253,-726,-767
+-966,-629,630
+-65,80,-89
+225,-699,-686
+458,-366,341
+631,654,723
+519,-426,329
+553,630,611
+-940,771,303
+-769,805,-806
+-596,-618,-721
+-878,854,-724
+
+--- scanner 8 ---
+727,-725,925
+-688,403,-506
+-703,-424,442
+775,686,858
+702,-656,859
+852,-650,-515
+-627,-782,-247
+-676,303,-373
+844,620,829
+-731,319,-351
+-598,-653,-289
+-416,586,573
+-712,-539,502
+-552,531,634
+-640,-683,-228
+761,639,953
+709,-533,-528
+564,760,-677
+-647,-477,471
+724,-711,-605
+549,642,-710
+28,-36,105
+651,702,-765
+654,-830,863
+-599,553,646
+
+--- scanner 9 ---
+764,334,-701
+799,357,-509
+-435,446,-654
+-102,-105,-51
+743,489,602
+437,-387,486
+710,548,770
+-614,-599,-897
+572,-895,-506
+-516,546,785
+-582,485,-643
+-546,581,-659
+493,-892,-446
+679,503,771
+-702,-801,586
+-756,-933,510
+795,352,-642
+-535,437,679
+34,27,-113
+-392,-655,-878
+-515,-777,-905
+432,-848,-409
+-774,-907,565
+-467,533,747
+371,-347,305
+506,-362,424
+
+--- scanner 10 ---
+710,734,-533
+604,-860,729
+729,616,738
+703,422,695
+658,-926,-484
+-46,-63,-6
+-779,261,-840
+726,738,-568
+-678,-645,-733
+634,-771,625
+577,777,-460
+-384,-747,492
+-843,313,-769
+671,-945,-583
+-367,-895,553
+-821,-658,-616
+-693,-568,-555
+-559,593,815
+-549,-793,560
+629,-884,-613
+781,-818,660
+833,529,672
+-728,293,-857
+-463,567,745
+-340,566,814
+
+--- scanner 11 ---
+447,-533,-477
+442,-411,-424
+739,600,-576
+676,-753,620
+-132,65,16
+554,-810,626
+-392,-404,625
+680,555,-758
+-502,616,651
+-498,-476,604
+545,939,761
+-749,-530,-408
+-394,467,669
+-549,635,-716
+-366,-422,680
+-389,493,667
+485,-723,654
+-455,659,-737
+-530,843,-757
+453,-457,-318
+725,602,-790
+-821,-606,-392
+549,836,757
+593,948,762
+-765,-689,-459
+
+--- scanner 12 ---
+645,-718,-548
+690,581,410
+604,435,-341
+-631,-261,708
+-312,616,737
+-346,-634,-376
+-502,578,-394
+32,104,4
+594,416,-524
+-624,573,-341
+580,-781,787
+535,515,484
+-505,-618,-325
+524,-688,-633
+-613,-235,763
+-429,-690,-309
+649,-806,849
+651,523,534
+514,-821,968
+-578,584,-235
+-225,685,709
+-282,807,703
+182,159,189
+687,-614,-617
+629,411,-558
+-559,-367,687
+
+--- scanner 13 ---
+-339,-816,-841
+368,775,595
+452,692,719
+-823,-543,796
+627,-630,-698
+-415,814,-529
+-436,768,-542
+-362,-604,-830
+713,-544,-821
+-904,-350,775
+765,-371,550
+-875,-354,841
+-386,759,-683
+-381,-661,-791
+603,-708,-810
+418,675,-363
+486,863,-390
+702,-308,391
+34,108,-71
+-642,530,427
+-519,527,330
+-508,620,464
+515,793,-413
+403,801,637
+747,-394,362
+
+--- scanner 14 ---
+655,464,-418
+-735,-531,-975
+-450,-751,228
+35,155,-30
+609,419,-432
+-510,-629,331
+639,776,592
+839,-428,403
+-723,-539,-910
+563,-468,-514
+-412,659,-837
+650,923,631
+-473,821,-805
+-405,744,-868
+601,-476,-487
+60,10,-171
+655,812,496
+-789,842,531
+704,-488,-515
+-683,823,640
+-486,-667,266
+891,-493,421
+898,-628,374
+-743,-624,-863
+-751,891,544
+547,533,-503
+
+--- scanner 15 ---
+271,396,695
+-693,664,-773
+307,531,798
+365,636,-767
+479,629,-621
+477,-565,-714
+363,-515,497
+-941,-590,703
+382,567,-714
+-838,-533,715
+-853,526,744
+-786,568,-749
+-831,684,640
+-717,-492,-640
+-916,-449,741
+339,-573,-632
+451,-531,-618
+-817,503,-772
+261,-441,497
+275,610,660
+-945,699,710
+0,-150,110
+-766,-430,-636
+-100,40,80
+401,-529,429
+-751,-439,-466
+
+--- scanner 16 ---
+-456,-288,521
+-522,594,-368
+-555,-296,699
+552,-747,406
+-333,-315,643
+-522,469,374
+629,505,630
+782,-458,-808
+533,617,683
+631,-687,403
+491,-784,450
+804,-614,-707
+-34,45,146
+-541,531,493
+663,762,-355
+-678,524,385
+-557,-323,-443
+-592,-390,-591
+87,6,-3
+564,732,-290
+611,683,-478
+-489,557,-582
+-410,-386,-531
+858,-471,-804
+-459,604,-592
+673,535,755
+
+--- scanner 17 ---
+424,-503,-572
+653,616,662
+508,688,-780
+681,544,596
+-629,422,734
+624,542,-766
+-781,-500,829
+-808,-432,641
+-341,348,-638
+-758,-529,759
+-380,367,-695
+-473,-641,-664
+726,-480,670
+-330,325,-850
+-361,-617,-742
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+607,544,485
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+665,-494,727
+807,-441,669
+-350,-727,-578
+-488,372,725
+702,710,-807
+-642,401,780
+27,86,-26
+151,-78,10
+
+--- scanner 18 ---
+708,-520,-693
+-609,-443,720
+830,-512,758
+817,-418,781
+647,-463,-679
+140,-7,38
+-466,634,-511
+-488,703,-486
+663,621,-513
+-628,-324,782
+-661,632,694
+693,606,-381
+682,649,732
+-776,-431,-644
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+789,-521,-732
+753,-489,697
+660,591,720
+-799,-361,-673
+-691,642,647
+-826,-549,-741
+-628,418,657
+-518,639,-545
+-29,90,-28
+-472,-335,727
+584,639,616
+
+--- scanner 19 ---
+555,448,-664
+489,644,897
+807,-617,-330
+-628,-812,-740
+531,453,-431
+21,-61,175
+-817,-409,768
+751,-432,616
+-169,-98,27
+-581,-799,-619
+-725,416,-249
+764,-554,-250
+420,821,861
+-580,-767,-567
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+-433,337,571
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+-802,315,-338
+728,-397,808
+-796,478,-212
+-391,272,679
+-968,-364,676
+-819,-397,703
+733,-401,675
+-423,445,650
+446,822,883
+
+--- scanner 20 ---
+685,-619,765
+-750,363,-301
+708,-746,-819
+-537,524,651
+855,617,-843
+-816,367,-330
+-402,-517,-563
+-305,-514,-686
+-524,478,561
+-825,-428,728
+866,829,-866
+-393,564,579
+-701,-459,774
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+-771,556,-382
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+816,674,-824
+-439,-607,-697
+162,44,-40
+554,-801,-790
+901,746,499
+944,639,369
+-773,-456,889
+
+--- scanner 21 ---
+-487,635,505
+-634,670,552
+744,-554,527
+-597,563,-428
+-536,586,-351
+378,680,-268
+-513,492,-364
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+-678,-565,-597
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+-562,-575,-499
+-558,-232,924
+715,-733,568
+-617,-391,875
+-664,566,463
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+-610,-268,910
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+-30,114,54
+370,536,-284
+637,-489,-277
+-574,-517,-521
+354,713,-369
+502,-402,-278
+737,-618,629
+
+--- scanner 22 ---
+-689,-622,794
+-749,591,-627
+730,-593,-587
+-280,-577,-899
+119,-103,-156
+863,-594,790
+-451,700,392
+-838,-595,827
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+-498,821,379
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+858,-727,794
+-687,-687,782
+909,384,655
+-28,-43,-19
+-773,706,-661
+634,-577,-551
+704,744,-453
+
+--- scanner 23 ---
+-782,-645,-730
+-836,-788,-827
+-543,358,913
+49,-174,-59
+665,520,474
+355,-944,620
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+-530,-512,383
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+-469,-475,427
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+614,-869,-614
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+-60,-30,48
+-760,-801,-831
+-584,797,-474
+577,-963,676
+478,-971,498
+579,-936,-466
+
+--- scanner 24 ---
+654,-590,415
+513,-610,416
+567,801,-730
+326,-615,-520
+378,-550,-502
+670,411,404
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+-699,800,-604
+-699,754,-776
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+-750,-731,649
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+-567,-658,616
+-519,-833,-414
+-606,614,788
+-67,-96,74
+608,297,333
+562,342,319
+53,-10,-98
+-454,-802,-476
+-721,580,812
+
+--- scanner 25 ---
+-546,411,381
+362,-611,742
+-14,15,69
+387,-542,680
+-518,-591,-565
+-489,-848,564
+133,-129,-34
+-785,630,-488
+907,669,601
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+-548,-815,396
+933,651,656
+-570,-735,-595
+-533,362,419
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+-851,635,-473
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+480,-486,-740
+534,384,-483
+-487,-670,-668
+801,597,580
+-726,656,-552
+554,-649,-724
+-503,-784,395
+478,467,-416
+
+--- scanner 26 ---
+568,363,552
+-733,755,905
+-789,784,958
+-726,648,-616
+-137,-77,58
+-811,-733,-781
+-810,712,-687
+-553,-878,715
+-787,725,-593
+-798,724,843
+664,603,-585
+644,-904,-744
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+-10,-145,190
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+-756,-577,-770
+641,301,657
+-749,-714,-662
+616,367,726
+527,-484,827
+615,-881,-674
+417,-473,663
+-553,-832,543
+
+--- scanner 27 ---
+672,770,794
+846,925,-583
+492,-796,-624
+842,-495,695
+927,-672,679
+-423,-819,-611
+-744,560,553
+-664,-663,804
+-405,-793,-666
+-787,-541,777
+808,860,-607
+-7,96,-43
+807,817,801
+-597,599,542
+-712,647,-848
+-633,695,558
+-565,-485,796
+607,788,742
+615,-683,-640
+943,-528,671
+-477,-687,-687
+466,-791,-622
+-663,660,-886
+168,23,-107
+-644,551,-780
+930,963,-547
+
+--- scanner 28 ---
+-271,438,-614
+606,-544,732
+583,536,639
+-628,508,883
+545,-567,809
+31,-106,-47
+576,-390,-493
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+-338,586,-579
+-244,-704,-616
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+522,-473,796
+646,363,-649
+583,-498,-630
+-263,-648,-838
+-493,421,882
+-236,-526,-715
+-334,526,-761
+687,584,563
+-345,-694,791
+180,17,17
+-369,-661,892
+-423,474,915
+-361,-517,876
+609,577,-682
+571,594,661
diff --git a/day19/main.c b/day19/main.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+
+void puzzle(const char *filename, long long *res1, long long *res2);
+
+int main(int argc, char *argv[]) {
+ printf("Advent of Code: day 19\n");
+ double time_start = clock();
+
+ if (argc <= 1) {
+ printf("Usage: %s inputfile.txt\n", argv[0]);
+ return -1;
+ }
+
+ const char *filename = argv[1];
+ long long counter1 = -1;
+ long long counter2 = -1;
+
+ puzzle(filename, &counter1, &counter2);
+
+ printf("Puzzle #1: %lld\n", counter1);
+ printf("Puzzle #2: %lld\n", counter2);
+
+ double elapsed = clock() - time_start;
+ printf("Elapsed: %f\n", elapsed / CLOCKS_PER_SEC);
+
+ return 0;
+}
diff --git a/day19/puzzle.c b/day19/puzzle.c
@@ -0,0 +1,158 @@
+#define _DEFAULT_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <strings.h>
+#include <assert.h>
+#include <ctype.h>
+
+#include "util.h"
+
+#define STR_LEN 1024
+#define BEACONS_VARIANTS 24
+
+struct beacon_t {
+ int x, y, z;
+};
+
+struct scanner_t {
+ int id;
+ struct beacon_t *beacons[BEACONS_VARIANTS];
+ int beacons_count;
+};
+
+struct scanner_t parse_scanner(const char *str);
+void parse_beacon(struct scanner_t *scanner, const char *str);
+void rotate_beacon(struct beacon_t *orig, struct beacon_t *beacon, int variant);
+
+void puzzle(const char *filename, long long *result1, long long *result2) {
+ FILE *infile = fopen(filename, "r");
+ if (infile == NULL) {
+ fprintf(stderr, "fopen() error: %s\n", strerror(errno));
+ return;
+ }
+
+ char buf[STR_LEN] = {0};
+ unsigned int line_num = 0;
+
+ *result1 = 0;
+ *result2 = 0;
+
+ struct array_t scanners = { .data = NULL };
+ array_init(&scanners, sizeof(struct scanner_t), 10);
+
+ while (fgets(buf, STR_LEN, infile) != NULL) {
+ char *scan = NULL;
+ if ((scan = strstr(buf, "scanner")) != NULL) {
+ if (scanners.count >= scanners.cap) array_expand(&scanners);
+ struct scanner_t *scanners_data = scanners.data;
+ scanners_data[scanners.count++] = parse_scanner(scan);
+ } else if (strlen(buf) > 2) {
+ struct scanner_t *scanner = &((struct scanner_t *)scanners.data)[scanners.count-1];
+ parse_beacon(scanner, buf);
+ }
+ ++line_num;
+ bzero(buf, STR_LEN);
+ }
+
+ struct scanner_t *data = scanners.data;
+ for (size_t i = 0; i < scanners.count; ++i) {
+ //printf("scanner %2d, beacons %2d:\n", data[i].id, data[i].beacons_count);
+ for (int j = 1; j < BEACONS_VARIANTS; ++j) {
+ data[i].beacons[j] = calloc(data[i].beacons_count, sizeof(struct beacon_t));
+ }
+ for (int k = 0; k < data[i].beacons_count; ++k) {
+ for (int j = 0; j < BEACONS_VARIANTS; ++j) {
+ rotate_beacon(&data[i].beacons[0][k], &data[i].beacons[j][k], j);
+ /*printf("scanner %2d beacon %2d rotation variant %2d: %5d %5d %5d\n",
+ data[i].id, k, j,
+ data[i].beacons[j][k].x,
+ data[i].beacons[j][k].y,
+ data[i].beacons[j][k].z);*/
+ }
+ }
+ }
+
+ // mutiny! ignoring feof/ferror.
+ fclose(infile);
+}
+
+void rotate_beacon(struct beacon_t *orig, struct beacon_t *beacon, int variant) {
+ assert(orig != NULL);
+ assert(beacon != NULL);
+ assert(variant >= 0 && variant < BEACONS_VARIANTS);
+ switch (variant) {
+ // case 0: beacon->x = orig->x; beacon->y = orig->y; beacon->z = orig->z; return;
+ case 1: beacon->x = orig->x; beacon->y = -orig->z; beacon->z = orig->y; return;
+ case 2: beacon->x = orig->x; beacon->y = -orig->y; beacon->z = -orig->z; return;
+ case 3: beacon->x = orig->x; beacon->y = orig->z; beacon->z = -orig->y; return;
+
+ case 4: beacon->x = -orig->y; beacon->y = orig->x; beacon->z = orig->z; return;
+ case 5: beacon->x = orig->z; beacon->y = orig->x; beacon->z = orig->y; return;
+ case 6: beacon->x = orig->y; beacon->y = orig->x; beacon->z = -orig->z; return;
+ case 7: beacon->x = -orig->z; beacon->y = orig->x; beacon->z = -orig->y; return;
+
+ case 8: beacon->x = -orig->x; beacon->y = -orig->y; beacon->z = orig->z; return;
+ case 9: beacon->x = -orig->x; beacon->y = -orig->z; beacon->z = -orig->y; return;
+ case 10: beacon->x = -orig->x; beacon->y = orig->y; beacon->z = -orig->z; return;
+ case 11: beacon->x = -orig->x; beacon->y = orig->z; beacon->z = orig->y; return;
+
+ case 12: beacon->x = orig->y; beacon->y = -orig->x; beacon->z = orig->z; return;
+ case 13: beacon->x = orig->z; beacon->y = -orig->x; beacon->z = -orig->y; return;
+ case 14: beacon->x = -orig->y; beacon->y = -orig->x; beacon->z = -orig->z; return;
+ case 15: beacon->x = -orig->z; beacon->y = -orig->x; beacon->z = orig->y; return;
+
+ case 16: beacon->x = -orig->z; beacon->y = orig->y; beacon->z = orig->x; return;
+ case 17: beacon->x = orig->y; beacon->y = orig->z; beacon->z = orig->x; return;
+ case 18: beacon->x = orig->z; beacon->y = -orig->y; beacon->z = orig->x; return;
+ case 19: beacon->x = -orig->y; beacon->y = -orig->z; beacon->z = orig->x; return;
+
+ case 20: beacon->x = -orig->z; beacon->y = -orig->y; beacon->z = -orig->x; return;
+ case 21: beacon->x = -orig->y; beacon->y = orig->z; beacon->z = -orig->x; return;
+ case 22: beacon->x = orig->z; beacon->y = orig->y; beacon->z = -orig->x; return;
+ case 23: beacon->x = orig->y; beacon->y = -orig->z; beacon->z = -orig->x; return;
+ }
+}
+
+void parse_beacon(struct scanner_t *scanner, const char *str) {
+ assert(scanner != NULL);
+ assert(str != NULL);
+ struct array_t coordinates = { .data=NULL };
+ array_init(&coordinates, sizeof(int), 3);
+ parse_numbers_array(&coordinates, str, ",");
+ assert(coordinates.count == 3);
+ int *coordinates_data = coordinates.data;
+ scanner->beacons_count++;
+ scanner->beacons[0] = realloc(scanner->beacons[0], scanner->beacons_count * sizeof(struct beacon_t));
+ assert(scanner->beacons[0] != NULL);
+
+ scanner->beacons[0][scanner->beacons_count-1] = (struct beacon_t){
+ .x = coordinates_data[0],
+ .y = coordinates_data[1],
+ .z = coordinates_data[2]
+ };
+}
+
+struct scanner_t parse_scanner(const char *str) {
+ assert(str != NULL);
+ struct scanner_t scanner = {0};
+ char *tmp = strndup(str, STR_LEN);
+ char *token = NULL;
+ assert(tmp != NULL);
+ int scanner_id = -1;
+ while ((token = strsep(&tmp, "- \n")) != NULL) {
+ if (*token == '\0') continue;
+ if (isdigit(token[0])) {
+ //printf("token=%s\n", token);
+ scanner_id = atoi(token);
+ break;
+ }
+ }
+ assert(scanner_id != -1);
+ //printf("scanner_id=%d\n", scanner_id);
+ scanner.id = scanner_id;
+ return scanner;
+}
+
diff --git a/day19/test.txt b/day19/test.txt
@@ -0,0 +1,136 @@
+--- scanner 0 ---
+404,-588,-901
+528,-643,409
+-838,591,734
+390,-675,-793
+-537,-823,-458
+-485,-357,347
+-345,-311,381
+-661,-816,-575
+-876,649,763
+-618,-824,-621
+553,345,-567
+474,580,667
+-447,-329,318
+-584,868,-557
+544,-627,-890
+564,392,-477
+455,729,728
+-892,524,684
+-689,845,-530
+423,-701,434
+7,-33,-71
+630,319,-379
+443,580,662
+-789,900,-551
+459,-707,401
+
+--- scanner 1 ---
+686,422,578
+605,423,415
+515,917,-361
+-336,658,858
+95,138,22
+-476,619,847
+-340,-569,-846
+567,-361,727
+-460,603,-452
+669,-402,600
+729,430,532
+-500,-761,534
+-322,571,750
+-466,-666,-811
+-429,-592,574
+-355,545,-477
+703,-491,-529
+-328,-685,520
+413,935,-424
+-391,539,-444
+586,-435,557
+-364,-763,-893
+807,-499,-711
+755,-354,-619
+553,889,-390
+
+--- scanner 2 ---
+649,640,665
+682,-795,504
+-784,533,-524
+-644,584,-595
+-588,-843,648
+-30,6,44
+-674,560,763
+500,723,-460
+609,671,-379
+-555,-800,653
+-675,-892,-343
+697,-426,-610
+578,704,681
+493,664,-388
+-671,-858,530
+-667,343,800
+571,-461,-707
+-138,-166,112
+-889,563,-600
+646,-828,498
+640,759,510
+-630,509,768
+-681,-892,-333
+673,-379,-804
+-742,-814,-386
+577,-820,562
+
+--- scanner 3 ---
+-589,542,597
+605,-692,669
+-500,565,-823
+-660,373,557
+-458,-679,-417
+-488,449,543
+-626,468,-788
+338,-750,-386
+528,-832,-391
+562,-778,733
+-938,-730,414
+543,643,-506
+-524,371,-870
+407,773,750
+-104,29,83
+378,-903,-323
+-778,-728,485
+426,699,580
+-438,-605,-362
+-469,-447,-387
+509,732,623
+647,635,-688
+-868,-804,481
+614,-800,639
+595,780,-596
+
+--- scanner 4 ---
+727,592,562
+-293,-554,779
+441,611,-461
+-714,465,-776
+-743,427,-804
+-660,-479,-426
+832,-632,460
+927,-485,-438
+408,393,-506
+466,436,-512
+110,16,151
+-258,-428,682
+-393,719,612
+-211,-452,876
+808,-476,-593
+-575,615,604
+-485,667,467
+-680,325,-822
+-627,-443,-432
+872,-547,-609
+833,512,582
+807,604,487
+839,-516,451
+891,-625,532
+-652,-548,-490
+30,-46,-14
