Day 19: Add C solution
This commit is contained in:
parent
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commit
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GPG key ID:
72E154B8622EC191
2 changed files with 1078 additions and 0 deletions
949
19/input.txt
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949
19/input.txt
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@ -0,0 +1,949 @@
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||||
-897,-420,814
|
||||
459,-483,-564
|
||||
-883,-452,696
|
||||
|
||||
--- scanner 20 ---
|
||||
397,-456,465
|
||||
822,541,-705
|
||||
-805,-570,-623
|
||||
484,-683,-391
|
||||
-592,793,-393
|
||||
-867,737,670
|
||||
-592,-860,531
|
||||
-506,805,-437
|
||||
-881,820,497
|
||||
-560,807,-275
|
||||
432,554,511
|
||||
-12,12,62
|
||||
780,662,-607
|
||||
467,492,474
|
||||
406,-399,601
|
||||
773,606,-703
|
||||
328,-770,-433
|
||||
-893,-541,-502
|
||||
-503,-915,463
|
||||
330,-529,600
|
||||
408,439,440
|
||||
-715,-853,455
|
||||
-849,835,649
|
||||
542,-805,-456
|
||||
-129,-146,27
|
||||
-874,-471,-564
|
||||
|
||||
--- scanner 21 ---
|
||||
533,528,-756
|
||||
635,945,504
|
||||
924,-707,-431
|
||||
926,-248,469
|
||||
-453,651,678
|
||||
743,907,422
|
||||
18,113,48
|
||||
-426,-601,-285
|
||||
-587,-409,730
|
||||
-602,-306,668
|
||||
934,-310,681
|
||||
450,651,-713
|
||||
-736,841,-422
|
||||
788,-764,-440
|
||||
858,-303,558
|
||||
637,717,-755
|
||||
-701,958,-484
|
||||
685,867,414
|
||||
-219,-659,-318
|
||||
789,-634,-364
|
||||
-609,608,678
|
||||
-494,-457,635
|
||||
-602,695,664
|
||||
-672,954,-527
|
||||
-322,-639,-423
|
||||
|
||||
--- scanner 22 ---
|
||||
665,-972,357
|
||||
157,-75,5
|
||||
-645,524,554
|
||||
-661,-821,715
|
||||
552,-766,-295
|
||||
572,402,640
|
||||
534,-897,368
|
||||
-544,439,-366
|
||||
-641,414,484
|
||||
569,492,-403
|
||||
596,-852,-283
|
||||
-616,479,429
|
||||
-479,-856,715
|
||||
6,-31,124
|
||||
618,534,-400
|
||||
434,-798,-281
|
||||
593,563,629
|
||||
-537,458,-259
|
||||
-703,405,-322
|
||||
-338,-477,-268
|
||||
-580,-849,831
|
||||
758,440,633
|
||||
569,-955,356
|
||||
528,455,-423
|
||||
-490,-509,-253
|
||||
-511,-491,-351
|
||||
|
||||
--- scanner 23 ---
|
||||
388,-809,-352
|
||||
-367,872,532
|
||||
-415,-631,622
|
||||
743,-603,724
|
||||
-753,552,-643
|
||||
562,-642,690
|
||||
139,81,144
|
||||
451,-707,-384
|
||||
-381,-642,874
|
||||
383,456,849
|
||||
-411,-684,-537
|
||||
416,-685,-273
|
||||
-384,-613,831
|
||||
-338,776,398
|
||||
412,553,858
|
||||
399,591,733
|
||||
-264,869,422
|
||||
-733,574,-623
|
||||
-414,-599,-703
|
||||
674,-497,728
|
||||
48,-39,41
|
||||
389,865,-737
|
||||
-669,584,-587
|
||||
463,856,-635
|
||||
-348,-718,-636
|
||||
391,787,-525
|
||||
|
||||
--- scanner 24 ---
|
||||
-784,-392,606
|
||||
-484,366,661
|
||||
736,683,764
|
||||
-663,-858,-769
|
||||
833,-740,823
|
||||
-553,-789,-841
|
||||
821,-458,-849
|
||||
-765,-867,-843
|
||||
700,495,-558
|
||||
87,-2,28
|
||||
-325,324,752
|
||||
790,830,797
|
||||
705,-593,-833
|
||||
836,-846,942
|
||||
-418,392,698
|
||||
830,-555,-820
|
||||
1,-137,118
|
||||
870,-733,933
|
||||
662,640,-670
|
||||
-380,807,-844
|
||||
-301,683,-816
|
||||
-588,-458,571
|
||||
696,601,-489
|
||||
-412,705,-781
|
||||
-758,-468,681
|
||||
661,785,811
|
||||
|
||||
--- scanner 25 ---
|
||||
500,-759,-543
|
||||
637,-476,865
|
||||
844,524,-809
|
||||
691,-401,789
|
||||
755,549,-692
|
||||
-670,-822,952
|
||||
680,-578,858
|
||||
374,779,921
|
||||
-536,581,-571
|
||||
-543,-454,-324
|
||||
326,-743,-442
|
||||
-738,485,812
|
||||
-605,-435,-394
|
||||
-832,-768,954
|
||||
827,534,-783
|
||||
396,700,869
|
||||
-697,522,832
|
||||
-24,26,176
|
||||
-643,582,-740
|
||||
-484,-523,-423
|
||||
546,-705,-402
|
||||
-526,594,-675
|
||||
36,-123,83
|
||||
-648,564,835
|
||||
-714,-736,940
|
||||
311,819,948
|
||||
|
||||
--- scanner 26 ---
|
||||
-609,-865,-696
|
||||
-730,-552,628
|
||||
320,796,-676
|
||||
-480,446,-760
|
||||
-789,-814,-679
|
||||
752,-686,698
|
||||
86,-103,-33
|
||||
-54,-53,105
|
||||
601,-621,755
|
||||
-543,462,-794
|
||||
-688,-396,541
|
||||
312,517,722
|
||||
462,-422,-642
|
||||
426,-451,-511
|
||||
-557,806,840
|
||||
535,-710,720
|
||||
-619,825,770
|
||||
366,785,-669
|
||||
-849,-902,-681
|
||||
532,555,762
|
||||
-498,737,741
|
||||
444,-531,-542
|
||||
-665,-610,506
|
||||
323,826,-713
|
||||
-583,555,-710
|
||||
486,501,621
|
||||
|
||||
--- scanner 27 ---
|
||||
440,-949,710
|
||||
-548,356,729
|
||||
-860,601,-538
|
||||
464,-767,-452
|
||||
653,723,873
|
||||
-846,-908,-728
|
||||
440,436,-892
|
||||
-730,-861,516
|
||||
4,-62,-113
|
||||
541,420,-718
|
||||
407,-702,-603
|
||||
581,741,842
|
||||
484,727,848
|
||||
442,-791,-669
|
||||
-674,-844,415
|
||||
458,-926,798
|
||||
-923,-894,-813
|
||||
-880,-805,-768
|
||||
-93,-141,27
|
||||
-550,496,745
|
||||
400,474,-672
|
||||
-571,298,738
|
||||
-615,-768,460
|
||||
-867,703,-581
|
||||
-791,778,-527
|
||||
406,-925,854
|
||||
|
||||
--- scanner 28 ---
|
||||
647,354,627
|
||||
754,-710,818
|
||||
-32,-37,79
|
||||
-607,574,728
|
||||
706,-823,-325
|
||||
-440,806,-361
|
||||
811,-701,682
|
||||
-630,680,673
|
||||
686,-718,-428
|
||||
-604,-428,344
|
||||
627,391,574
|
||||
-907,-614,-778
|
||||
593,431,-839
|
||||
681,-777,683
|
||||
-481,-385,427
|
||||
452,429,-751
|
||||
557,452,-671
|
||||
9,100,-69
|
||||
-911,-657,-807
|
||||
-554,700,-421
|
||||
648,-856,-532
|
||||
-665,510,678
|
||||
640,355,394
|
||||
-670,-386,531
|
||||
-794,-719,-842
|
||||
-418,699,-345
|
||||
|
||||
--- scanner 29 ---
|
||||
345,-686,278
|
||||
590,445,375
|
||||
-10,-33,-90
|
||||
730,443,391
|
||||
-830,567,-808
|
||||
-329,-599,712
|
||||
-452,-400,-567
|
||||
725,770,-497
|
||||
-454,-606,663
|
||||
788,466,382
|
||||
580,746,-507
|
||||
359,-589,272
|
||||
557,720,-571
|
||||
-688,531,-855
|
||||
-520,-433,-570
|
||||
-571,763,607
|
||||
363,-758,247
|
||||
-794,543,-728
|
||||
-464,-557,820
|
||||
-121,76,13
|
||||
-599,-325,-596
|
||||
-469,671,559
|
||||
-529,590,644
|
||||
520,-828,-781
|
||||
507,-818,-949
|
||||
499,-842,-763
|
||||
|
||||
--- scanner 30 ---
|
||||
898,-783,-440
|
||||
922,437,482
|
||||
-471,-599,844
|
||||
754,-763,593
|
||||
74,-14,20
|
||||
-699,-844,-819
|
||||
905,-782,548
|
||||
7,-163,-135
|
||||
864,402,436
|
||||
-386,-589,679
|
||||
427,680,-886
|
||||
405,573,-902
|
||||
-465,303,-496
|
||||
-661,-982,-715
|
||||
-477,-574,623
|
||||
-728,245,476
|
||||
-719,-949,-922
|
||||
541,574,-826
|
||||
-570,326,-576
|
||||
781,-845,-405
|
||||
-555,248,370
|
||||
-606,305,-408
|
||||
907,-709,651
|
||||
894,-740,-469
|
||||
916,504,488
|
||||
-697,342,327
|
||||
|
||||
--- scanner 31 ---
|
||||
246,-795,-450
|
||||
689,777,-513
|
||||
-737,-654,-829
|
||||
659,821,460
|
||||
300,-430,432
|
||||
-748,371,-546
|
||||
-636,391,-522
|
||||
-451,-517,506
|
||||
555,774,586
|
||||
-738,444,-507
|
||||
-33,-82,-118
|
||||
-476,718,803
|
||||
329,-622,-464
|
||||
-576,-488,551
|
||||
231,-643,-482
|
||||
-498,868,705
|
||||
632,681,465
|
||||
-737,-472,-794
|
||||
-853,-553,-822
|
||||
631,669,-596
|
||||
5,80,24
|
||||
344,-589,466
|
||||
-506,-492,441
|
||||
517,728,-493
|
||||
-469,691,760
|
||||
237,-596,485
|
||||
|
||||
--- scanner 32 ---
|
||||
299,519,833
|
||||
-547,650,-617
|
||||
395,-426,414
|
||||
-954,-698,761
|
||||
643,-437,-429
|
||||
-715,929,492
|
||||
-555,612,-825
|
||||
-856,-676,911
|
||||
-911,-705,734
|
||||
313,846,-260
|
||||
-657,-723,-474
|
||||
-658,986,590
|
||||
267,489,859
|
||||
-714,907,743
|
||||
371,-538,434
|
||||
342,863,-343
|
||||
671,-321,-510
|
||||
-592,-668,-449
|
||||
-702,-598,-445
|
||||
-134,142,-43
|
||||
-587,540,-648
|
||||
239,648,792
|
||||
356,-436,487
|
||||
678,-437,-611
|
||||
-22,23,114
|
||||
271,842,-392
|
||||
|
||||
--- scanner 33 ---
|
||||
353,649,717
|
||||
632,-572,-385
|
||||
627,-425,511
|
||||
569,-375,575
|
||||
-478,613,-778
|
||||
566,-759,-427
|
||||
420,506,769
|
||||
759,692,-309
|
||||
455,702,787
|
||||
742,512,-360
|
||||
592,-430,681
|
||||
-443,636,-564
|
||||
-678,-709,356
|
||||
744,452,-272
|
||||
-665,-529,392
|
||||
-606,857,594
|
||||
-792,-285,-709
|
||||
-685,-476,355
|
||||
39,-2,98
|
||||
-561,738,693
|
||||
-31,148,10
|
||||
-849,-421,-700
|
||||
-565,571,-622
|
||||
-538,915,708
|
||||
443,-676,-384
|
||||
-719,-420,-776
|
||||
129
19/solution.c
Normal file
129
19/solution.c
Normal file
|
|
@ -0,0 +1,129 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <limits.h>
|
||||
|
||||
typedef struct beacon {
|
||||
int x,y,z;
|
||||
} beacon;
|
||||
|
||||
typedef struct scanner {
|
||||
int nbeacons, known;
|
||||
beacon *beacons;
|
||||
} scanner;
|
||||
|
||||
inline static beacon transform(beacon b, int i) {
|
||||
int x=b.x,y=b.y,z=b.z;
|
||||
#define r(n,a,b,c) case n: return (beacon){a,b,c}
|
||||
switch (i) {
|
||||
r( 0, x, y, z); r( 1, x,-y,-z); r( 2, x, z,-y); r( 3, x,-z, y);
|
||||
r( 4, y, x,-z); r( 5, y,-x, z); r( 6, y, z, x); r( 7, y,-z,-x);
|
||||
r( 8, z, x, y); r( 9, z,-x,-y); r(10, z, y,-x); r(11, z,-y, x);
|
||||
r(12,-x, y,-z); r(13,-x,-y, z); r(14,-x, z, y); r(15,-x,-z,-y);
|
||||
r(16,-y, x, z); r(17,-y,-x,-z); r(18,-y, z,-x); r(19,-y,-z, x);
|
||||
r(20,-z, x,-y); r(21,-z,-x, y); r(22,-z, y, x); r(23,-z,-y,-x);
|
||||
}
|
||||
return (beacon){0};
|
||||
}
|
||||
|
||||
inline static beacon sub(beacon a, beacon b) {
|
||||
return (beacon){a.x-b.x, a.y-b.y, a.z-b.z};
|
||||
}
|
||||
|
||||
inline static int manhattan(beacon a, beacon b) {
|
||||
return abs(a.x-b.x) + abs(a.y-b.y) + abs(a.z-b.z);
|
||||
}
|
||||
|
||||
int main() {
|
||||
scanner *scanners=NULL;
|
||||
beacon *known_beacons;
|
||||
int nscanners, known=1,knownb=0;
|
||||
getchar();
|
||||
|
||||
while(scanf("-- scanner %d ---\n",&nscanners)==1) {
|
||||
nscanners++;
|
||||
scanners=realloc(scanners,nscanners*sizeof(scanner));
|
||||
scanner *s = &scanners[nscanners-1];
|
||||
s->beacons=NULL;
|
||||
s->nbeacons=1;
|
||||
s->known=nscanners==1;
|
||||
beacon b;
|
||||
while(scanf("%i,%i,%i",&b.x,&b.y,&b.z)==3) {
|
||||
s->beacons=realloc(s->beacons,++s->nbeacons*sizeof(beacon));
|
||||
s->beacons[s->nbeacons-1]=b;
|
||||
knownb++;
|
||||
}
|
||||
memset(&s->beacons[0],0,sizeof(beacon));
|
||||
scanf("%*[^-]");
|
||||
}
|
||||
|
||||
known_beacons = malloc(knownb*sizeof(beacon));
|
||||
knownb = scanners[0].nbeacons;
|
||||
memcpy(known_beacons, scanners[0].beacons, knownb*sizeof(beacon));
|
||||
|
||||
while (known<nscanners) {
|
||||
#pragma omp parallel for schedule(dynamic,10) collapse(2)
|
||||
for (int i=0;i<nscanners;i++) {
|
||||
for (int m=0;m<24;m++) {
|
||||
if (scanners[i].known) continue;
|
||||
for(int kb=0; kb<knownb; kb++) {
|
||||
for(int tp=1;tp<scanners[i].nbeacons;tp++) {
|
||||
int candidates=0;
|
||||
beacon disp = sub(transform(scanners[i].beacons[tp],m), known_beacons[kb]);
|
||||
for (int dp=1;dp<scanners[i].nbeacons;dp++) {
|
||||
beacon c = sub(transform(scanners[i].beacons[dp],m),disp);
|
||||
for (int ckb=0;ckb<knownb;ckb++) {
|
||||
if (!memcmp(&c, &known_beacons[ckb], sizeof(beacon))){
|
||||
candidates++;
|
||||
if (candidates >= 12) {
|
||||
#pragma omp critical
|
||||
{
|
||||
beacon tmp[scanners[i].nbeacons-1];
|
||||
int ntmp=0;
|
||||
for (int kdp=1;kdp<scanners[i].nbeacons;kdp++) {
|
||||
beacon t = sub(transform(scanners[i].beacons[kdp],m),disp);
|
||||
int found=0;
|
||||
for (int kdc=0;kdc<knownb;kdc++)
|
||||
if (!memcmp(&t, &known_beacons[kdc],sizeof(beacon))) {
|
||||
found++;break;
|
||||
}
|
||||
if (!found)
|
||||
tmp[ntmp++] = t;
|
||||
}
|
||||
memcpy(known_beacons+knownb,tmp,ntmp*sizeof(beacon));
|
||||
knownb+=ntmp;
|
||||
|
||||
scanners[i].beacons[0] = (beacon){-disp.x,-disp.y,-disp.z};
|
||||
scanners[i].known=1;
|
||||
known++;
|
||||
printf("%d/%d\n",known,nscanners);
|
||||
}
|
||||
goto next;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
next:
|
||||
}
|
||||
}
|
||||
}
|
||||
printf("Silver: %d\n",knownb-1);
|
||||
|
||||
int G=0;
|
||||
for(int i=0;i<nscanners;i++){
|
||||
for(int j=0;j<nscanners;j++) {
|
||||
int m = manhattan(scanners[i].beacons[0],scanners[j].beacons[0]);
|
||||
if (m > G) G=m;
|
||||
}
|
||||
}
|
||||
|
||||
printf("Gold: %d\n",G);
|
||||
|
||||
for(int i=0;i<nscanners;i++)
|
||||
free(scanners[i].beacons);
|
||||
|
||||
free(scanners);
|
||||
free(known_beacons);
|
||||
}
|
||||
Loading…
Reference in a new issue