add solutions for day 22,23,24 and 25

solve day 21
solutions for day 16, 17, 18 19, 20
2021-12-25 06:46:42 +01:00 · 2021-12-21 21:38:12 +01:00 · 2021-12-20 22:12:26 +01:00 · 2021-12-15 08:35:43 +01:00 · 2021-12-13 08:35:12 +01:00 · 2021-12-12 07:06:12 +01:00
49 changed files with 6965 additions and 2 deletions
--- a/aoc.jl
+++ b/aoc.jl
@@ -35,15 +35,29 @@ end


 function _run_parts(day)
+  input = _input(day)
+  if "precompile" ∈ ARGS
+    @info "precompilation is on"
+  end
  if isdefined(Main, :p1)
-    p1_res = @time Main.p1(_input(day))
+    if "precompile" ∈ ARGS
+      i = copy(input)
+      Main.p1(i)
+    end
+    i = copy(input)
+    p1_res = @time Main.p1(i)
    @info "Part 1: $p1_res"
  else
    @info "p1() not defined. skipping..."
  end

  if isdefined(Main, :p2)
-    p2_res = @time Main.p2(_input(day))
+    if "precompile" ∈ ARGS
+      i = copy(input)
+      Main.p2(i)
+    end
+    i = copy(input)
+    p2_res = @time Main.p2(i)
    @info "Part 2: $p2_res"
  else
    @info "p2() not defined. skipping..."
--- a/data/day_10.txt
+++ b/data/day_10.txt
@@ -0,0 +1,102 @@
+([({<(({<[(<([{}<>])<(()<>){<>[]}>>[[{<>{}}[<>{}]][(<>[])<{}<>>]]){[{{[][]}[[]{}]}({{}[]}[{}<>])]({({}{})
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+((<[[<([[({{[([]{})([][])]{({}())(()}}}({[[][]](()<>)}(<[]{}>[[]{}]))}<[[{()<>}<[][]>]]{{{
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+[<{(<{<<[[[[(<{}()>{{}()})[[()()]<{}()>]]{{<<><>>({}<>)}(([]{})[{}<>]}}]{{({[]<>}{[][]})<[<>[]]<{}()>>}[{
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--- a/data/day_11.txt
+++ b/data/day_11.txt
@@ -0,0 +1,10 @@
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--- a/data/day_12.txt
+++ b/data/day_12.txt
@@ -0,0 +1,22 @@
+ax-end
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+im-CV
+CV-wg
--- a/data/day_13.txt
+++ b/data/day_13.txt
@@ -0,0 +1,789 @@
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+fold along x=655
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+fold along x=40
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+fold along y=6
--- a/data/day_14.txt
+++ b/data/day_14.txt
@@ -0,0 +1,102 @@
+HHKONSOSONSVOFCSCNBC
+
+OO -> N
+VK -> B
+KS -> N
+PK -> H
+FB -> H
+BF -> S
+BB -> V
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+HN -> K
+VH -> B
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+VS -> P
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+OV -> K
+SB -> N
+NF -> O
+VN -> S
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+PS -> N
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+CO -> H
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+OB -> V
+PH -> N
+PB -> C
+HV -> N
+HP -> V
+FF -> B
+OF -> P
+VC -> S
+KV -> C
+FC -> F
--- a/data/day_15.txt
+++ b/data/day_15.txt
@@ -0,0 +1,100 @@
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+8176221727998313186834559714891971413547985825489911732617146966111238282644811394895278181837711185
--- a/data/day_16.txt
+++ b/data/day_16.txt
@@ -0,0 +1 @@
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
--- a/data/day_17.txt
+++ b/data/day_17.txt
@@ -0,0 +1 @@
+target area: x=156..202, y=-110..-69
--- a/data/day_18.txt
+++ b/data/day_18.txt
@@ -0,0 +1,100 @@
+[[[[4,9],[1,7]],[9,8]],[[7,9],[7,9]]]
+[[[1,[1,5]],9],[[[8,0],[8,8]],[[7,2],[4,6]]]]
+[[3,7],[[7,[4,6]],[[8,0],[7,8]]]]
+[[[[0,1],2],4],[[9,[2,8]],7]]
+[[[[9,0],9],7],[[1,0],8]]
+[[4,[[1,2],1]],1]
+[[[[6,1],[0,2]],[[2,3],4]],[[9,1],8]]
+[[[5,9],[1,0]],[[7,0],3]]
+[[9,1],[[4,7],[5,[8,6]]]]
+[[5,[[3,2],[1,9]]],[[[3,8],9],3]]
+[[0,[[5,6],2]],9]
+[6,[2,[[4,2],6]]]
+[[[[8,2],[9,1]],[9,1]],7]
+[9,1]
+[[[[9,8],[5,3]],5],[[6,9],[9,[6,8]]]]
+[0,[[2,[2,5]],2]]
+[[2,6],[[[2,8],1],[[0,2],[0,7]]]]
+[[[[7,8],[8,5]],[[3,2],[4,0]]],[2,[[1,0],[2,6]]]]
+[[[7,[7,0]],[[1,9],9]],7]
+[[[[5,1],[0,9]],4],[[0,[9,7]],[8,[6,8]]]]
+[[8,2],[2,[6,0]]]
+[[2,6],[[[4,0],6],2]]
+[[9,[7,[0,1]]],8]
+[[[[3,8],[4,3]],[7,[0,6]]],[[[5,5],[0,4]],[[8,2],0]]]
+[[[[9,1],[9,3]],[1,[0,1]]],[[[9,6],8],[9,6]]]
+[[[[2,3],[7,1]],[[6,8],6]],[[[6,0],0],0]]
+[[7,[[5,0],4]],[[[8,8],[6,2]],[8,2]]]
+[[[0,[3,8]],[[0,0],[6,1]]],[[4,5],[[3,9],[5,8]]]]
+[4,[[1,[9,6]],[8,2]]]
+[[9,[[9,2],3]],[[[5,6],2],[1,[0,9]]]]
+[[9,9],[[0,[9,6]],[[8,6],3]]]
+[[4,[[8,3],2]],[[[9,9],9],[2,[2,0]]]]
+[[[[7,3],[4,2]],7],[4,6]]
+[[[2,6],[[4,0],[0,8]]],[[5,0],[3,5]]]
+[[[[9,3],[0,3]],[[0,0],[1,1]]],[3,[[8,4],[8,6]]]]
+[[[[3,6],8],1],[[4,[4,1]],[[5,1],[3,0]]]]
+[[[[8,1],[2,0]],[5,[2,1]]],[[9,[0,0]],[[7,2],[1,0]]]]
+[[[6,6],[2,3]],[[7,6],[[9,8],2]]]
+[[[0,9],3],[[[9,5],5],[[6,8],[0,4]]]]
+[[[0,3],9],[5,[5,[0,5]]]]
+[[0,[[9,1],4]],[2,4]]
+[[[9,7],[0,[7,8]]],[[[3,3],5],[[0,9],[1,5]]]]
+[[0,[[8,0],[5,2]]],[[[1,8],[1,2]],[3,8]]]
+[5,[0,[[9,8],9]]]
+[[6,[[9,2],[3,5]]],[[[2,3],9],3]]
+[1,[1,1]]
+[[6,[[0,0],1]],[[7,[4,9]],7]]
+[[3,[[3,5],3]],[[[9,9],6],[[5,0],8]]]
+[1,5]
+[[0,4],[8,7]]
+[[7,[[9,2],1]],5]
+[[[[6,8],[6,5]],0],4]
+[[[4,1],[9,0]],[[[4,3],6],[5,9]]]
+[[8,[[1,9],[5,4]]],[[[9,0],4],[5,5]]]
+[[0,9],[[[5,5],[7,7]],6]]
+[[8,[8,5]],[8,[2,6]]]
+[[[[8,4],4],0],[[3,[2,6]],[6,6]]]
+[[5,[[5,2],6]],[[[2,3],[5,0]],[[2,9],0]]]
+[[[[5,9],6],[[8,9],[5,7]]],[0,[8,[2,5]]]]
+[[[[9,0],7],1],2]
+[[[9,3],6],[[[6,6],[9,6]],1]]
+[[[2,0],[0,[4,6]]],[[[5,7],6],[9,5]]]
+[[[3,[4,3]],8],[[[6,3],[0,5]],2]]
+[[[[2,8],8],[5,[2,4]]],[[3,7],[2,1]]]
+[[1,[[2,7],4]],7]
+[[2,[4,[5,9]]],[[[7,0],6],[4,[9,1]]]]
+[[[9,[3,5]],[[9,5],[5,2]]],[[2,[4,3]],[[0,5],[1,9]]]]
+[[1,[9,0]],[[[0,9],[9,3]],0]]
+[[[[7,8],[3,6]],3],[[[2,6],[2,9]],[[1,3],[1,3]]]]
+[[[7,[1,4]],[4,7]],[[[0,7],[0,6]],5]]
+[[[6,0],[3,[2,3]]],6]
+[[0,[3,[1,3]]],[[2,3],9]]
+[[[8,6],[0,2]],[[[8,9],[7,0]],9]]
+[[[[4,9],6],2],[[[8,9],[1,5]],[9,3]]]
+[[[1,5],[6,[2,7]]],[7,[1,7]]]
+[5,[3,[9,1]]]
+[[[7,5],[1,5]],1]
+[2,[[[5,0],[4,0]],[[3,7],5]]]
+[[[5,9],1],[[[3,9],4],6]]
+[[3,[[5,2],[9,2]]],[4,[[3,6],[8,9]]]]
+[[[5,4],[8,8]],1]
+[[[[8,9],[5,8]],0],[[9,5],[6,[7,1]]]]
+[[[4,[8,8]],[[9,5],4]],3]
+[[6,[6,[4,3]]],[[7,[3,9]],[4,8]]]
+[[5,[[4,2],[7,3]]],[[[9,0],[0,1]],[[5,8],0]]]
+[[[[6,1],6],[9,[0,8]]],[9,9]]
+[[4,0],[[[1,4],4],[4,4]]]
+[[7,[[0,0],[1,6]]],7]
+[[6,3],[5,[[2,7],5]]]
+[[1,[7,5]],[0,[4,1]]]
+[[[3,7],3],[[3,[0,2]],2]]
+[[[0,8],[[7,0],[9,8]]],[[[0,3],4],[[6,0],6]]]
+[[[[4,6],[1,7]],[[6,4],[1,5]]],[3,[9,9]]]
+[[[2,[1,7]],[9,9]],[[0,[7,8]],[0,[9,6]]]]
+[[9,8],[5,[6,[1,8]]]]
+[[[7,2],[[0,6],[2,6]]],[[9,[0,4]],[9,[5,8]]]]
+[[[8,[6,8]],[[5,5],[9,9]]],[[[2,0],6],[8,1]]]
+[[[[0,8],4],[3,4]],[[0,[0,8]],[[7,5],2]]]
+[7,[[[3,4],[5,4]],8]]
+[[[2,8],[0,2]],6]
--- a/data/day_19.txt
+++ b/data/day_19.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
--- a/data/day_2.txt
+++ b/data/day_2.txt
--- a/data/day_20.txt
+++ b/data/day_20.txt
@@ -0,0 +1,102 @@
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--- a/data/day_21.txt
+++ b/data/day_21.txt
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--- a/data/day_23.txt
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--- a/data/day_3.txt
+++ b/data/day_3.txt
--- a/data/day_4.txt
+++ b/data/day_4.txt
@@ -0,0 +1,601 @@
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+54 85 67 34 79
+25 58 38 73 61
+72 98  4 19 40
+32 10 29 31 89
+15 33  5  7 63
+
+49 48 71 81 88
+70  5 39 41 22
+19 20  7 75 23
+69 46 63 14 54
+80 45 94  6 55
+
+88 62 76 78 95
+64 65 36 58 22
+ 7 21 98 93 42
+79 99  9 89 10
+ 6  5 33 92 72
--- a/data/day_5.txt
+++ b/data/day_5.txt
@@ -0,0 +1,500 @@
+348,742 -> 620,742
+494,864 -> 494,484
+193,136 -> 301,136
+342,692 -> 342,538
+234,525 -> 102,393
+72,964 -> 847,189
+639,430 -> 99,970
+398,791 -> 398,187
+181,144 -> 205,168
+607,617 -> 416,617
+98,339 -> 98,437
+763,119 -> 176,119
+450,848 -> 450,664
+293,133 -> 293,98
+308,98 -> 308,15
+157,21 -> 405,269
+792,471 -> 409,471
+42,955 -> 956,41
+895,269 -> 895,884
+629,635 -> 392,635
+169,23 -> 273,127
+250,847 -> 250,665
+709,56 -> 709,626
+938,599 -> 669,868
+913,46 -> 458,501
+844,417 -> 844,424
+178,651 -> 640,189
+226,266 -> 149,266
+654,421 -> 654,499
+368,780 -> 368,38
+183,743 -> 497,429
+942,34 -> 387,589
+987,461 -> 987,348
+485,275 -> 330,275
+33,460 -> 456,883
+606,304 -> 606,628
+755,170 -> 755,187
+342,862 -> 250,954
+866,125 -> 151,840
+795,489 -> 599,685
+905,525 -> 905,457
+99,620 -> 99,339
+899,507 -> 699,707
+627,444 -> 923,444
+798,80 -> 419,459
+580,237 -> 580,907
+947,336 -> 947,727
+491,466 -> 546,411
+335,221 -> 458,221
+547,70 -> 407,210
+520,80 -> 647,80
+835,58 -> 835,300
+574,239 -> 589,239
+219,670 -> 219,22
+512,69 -> 255,69
+83,701 -> 239,701
+874,109 -> 48,935
+980,892 -> 159,71
+154,879 -> 53,879
+782,37 -> 89,730
+481,736 -> 481,614
+377,886 -> 569,694
+777,403 -> 726,454
+728,952 -> 728,972
+495,643 -> 879,643
+425,564 -> 187,326
+443,110 -> 386,167
+529,279 -> 529,103
+985,983 -> 16,14
+145,112 -> 877,844
+914,34 -> 121,827
+409,229 -> 784,229
+719,86 -> 479,86
+929,984 -> 218,984
+985,928 -> 299,242
+168,159 -> 168,743
+189,784 -> 189,498
+401,58 -> 390,58
+47,283 -> 452,688
+246,292 -> 246,461
+869,901 -> 643,675
+879,593 -> 108,593
+707,417 -> 336,417
+99,401 -> 99,502
+583,764 -> 583,668
+493,934 -> 493,78
+643,570 -> 643,990
+278,765 -> 600,443
+940,437 -> 940,488
+812,896 -> 812,594
+727,711 -> 25,711
+173,586 -> 667,92
+169,879 -> 466,582
+361,650 -> 361,276
+725,818 -> 725,662
+48,119 -> 781,852
+921,62 -> 921,647
+135,613 -> 135,295
+702,969 -> 194,461
+306,709 -> 274,709
+117,182 -> 117,856
+608,635 -> 608,854
+448,250 -> 448,641
+635,552 -> 341,552
+528,432 -> 51,432
+711,763 -> 987,487
+43,931 -> 917,57
+980,841 -> 526,387
+279,412 -> 377,412
+334,107 -> 509,282
+164,15 -> 164,345
+708,139 -> 708,846
+323,930 -> 323,282
+256,902 -> 922,236
+586,453 -> 244,111
+21,92 -> 840,911
+282,888 -> 839,331
+278,439 -> 712,873
+110,595 -> 696,595
+95,531 -> 804,531
+800,206 -> 800,881
+396,244 -> 396,441
+334,60 -> 122,60
+640,331 -> 640,467
+757,126 -> 731,126
+430,245 -> 932,245
+160,655 -> 753,62
+502,432 -> 751,432
+434,378 -> 434,287
+907,374 -> 552,729
+548,864 -> 632,864
+616,961 -> 746,831
+116,316 -> 666,866
+78,44 -> 950,916
+873,570 -> 355,570
+202,859 -> 885,176
+449,348 -> 904,348
+143,179 -> 760,796
+478,823 -> 478,55
+790,446 -> 790,257
+34,888 -> 736,888
+630,696 -> 437,889
+350,589 -> 118,821
+803,373 -> 808,373
+490,778 -> 818,450
+487,725 -> 487,836
+794,502 -> 794,114
+136,743 -> 136,634
+572,103 -> 194,103
+488,614 -> 528,614
+18,878 -> 539,357
+889,35 -> 889,271
+436,419 -> 21,419
+422,319 -> 422,821
+176,935 -> 923,188
+398,398 -> 436,436
+327,45 -> 820,538
+643,428 -> 890,675
+743,714 -> 143,114
+203,359 -> 189,359
+346,672 -> 346,190
+263,804 -> 263,249
+93,683 -> 93,453
+19,180 -> 238,399
+47,941 -> 888,100
+525,888 -> 236,599
+624,397 -> 126,397
+382,119 -> 382,981
+972,753 -> 336,117
+682,978 -> 48,344
+639,477 -> 639,408
+545,966 -> 12,966
+275,234 -> 401,234
+912,20 -> 101,20
+54,109 -> 809,864
+242,149 -> 242,283
+664,353 -> 828,353
+117,539 -> 26,630
+794,554 -> 624,554
+828,536 -> 43,536
+746,717 -> 746,420
+540,930 -> 224,930
+862,229 -> 862,212
+492,917 -> 835,574
+960,496 -> 960,618
+148,530 -> 148,485
+415,974 -> 494,974
+694,118 -> 654,158
+672,210 -> 672,81
+548,692 -> 668,812
+891,50 -> 10,931
+639,652 -> 844,652
+579,522 -> 556,545
+231,880 -> 170,880
+443,12 -> 443,775
+562,185 -> 562,984
+619,313 -> 74,858
+371,502 -> 642,231
+969,694 -> 714,949
+943,157 -> 179,921
+821,305 -> 821,427
+782,579 -> 874,671
+378,943 -> 378,956
+315,636 -> 572,893
+544,357 -> 315,357
+51,158 -> 16,158
+151,428 -> 508,428
+818,939 -> 90,939
+99,396 -> 451,396
+602,834 -> 695,834
+974,145 -> 974,919
+327,630 -> 254,630
+858,166 -> 900,166
+537,681 -> 564,681
+672,674 -> 672,619
+544,408 -> 750,614
+84,664 -> 210,664
+204,886 -> 469,886
+475,940 -> 475,592
+868,922 -> 614,922
+987,939 -> 367,939
+854,498 -> 956,498
+863,148 -> 22,989
+565,580 -> 948,197
+231,952 -> 798,385
+935,832 -> 113,10
+631,362 -> 631,329
+405,143 -> 303,143
+807,831 -> 891,831
+450,976 -> 450,247
+488,676 -> 508,676
+170,328 -> 636,794
+626,815 -> 626,938
+217,558 -> 708,558
+598,549 -> 532,549
+824,307 -> 304,307
+539,932 -> 390,932
+542,786 -> 435,893
+735,42 -> 389,388
+677,448 -> 65,448
+929,915 -> 29,15
+870,344 -> 870,287
+187,138 -> 754,138
+729,353 -> 508,132
+919,821 -> 317,219
+272,459 -> 272,72
+599,413 -> 342,413
+919,862 -> 199,142
+229,476 -> 893,476
+438,516 -> 150,228
+914,132 -> 173,873
+905,815 -> 315,815
+766,136 -> 766,207
+548,546 -> 451,643
+836,231 -> 381,231
+484,854 -> 852,854
+736,209 -> 307,209
+751,156 -> 809,156
+659,937 -> 659,333
+74,899 -> 485,488
+843,329 -> 843,584
+793,944 -> 910,827
+67,298 -> 610,841
+43,15 -> 960,932
+633,527 -> 912,806
+782,246 -> 716,312
+30,46 -> 912,928
+473,833 -> 473,189
+903,506 -> 61,506
+85,404 -> 85,898
+944,682 -> 944,465
+420,695 -> 391,666
+560,110 -> 810,360
+246,368 -> 25,368
+399,397 -> 781,15
+452,618 -> 452,340
+467,854 -> 890,854
+77,314 -> 77,780
+523,501 -> 523,646
+67,284 -> 637,284
+88,13 -> 988,913
+173,20 -> 844,691
+667,821 -> 722,821
+384,840 -> 792,432
+270,36 -> 270,352
+311,16 -> 311,334
+736,900 -> 736,264
+613,827 -> 748,962
+41,81 -> 885,925
+408,884 -> 756,884
+380,612 -> 402,634
+82,645 -> 82,708
+934,331 -> 316,331
+634,116 -> 634,891
+942,56 -> 942,642
+441,260 -> 955,774
+925,980 -> 314,369
+317,893 -> 577,893
+362,137 -> 433,137
+434,928 -> 434,623
+819,18 -> 819,488
+185,348 -> 615,778
+895,357 -> 492,357
+742,645 -> 742,151
+522,855 -> 366,699
+867,390 -> 57,390
+95,566 -> 389,272
+887,793 -> 887,871
+351,251 -> 351,30
+309,448 -> 865,448
+190,690 -> 70,570
+383,805 -> 383,607
+140,157 -> 140,164
+685,222 -> 705,222
+192,949 -> 192,358
+856,768 -> 856,967
+337,344 -> 771,344
+919,86 -> 53,952
+137,723 -> 887,723
+33,108 -> 873,948
+195,690 -> 195,184
+136,505 -> 136,520
+509,69 -> 509,800
+255,742 -> 255,740
+650,105 -> 650,483
+985,451 -> 268,451
+68,346 -> 171,346
+472,28 -> 574,28
+660,308 -> 660,382
+341,553 -> 341,419
+430,304 -> 807,304
+333,258 -> 795,258
+853,637 -> 252,36
+881,893 -> 237,249
+552,160 -> 826,160
+728,446 -> 728,905
+529,326 -> 529,860
+564,759 -> 564,737
+533,688 -> 78,233
+445,314 -> 329,198
+935,597 -> 652,597
+955,958 -> 174,177
+178,522 -> 178,457
+124,351 -> 74,351
+265,840 -> 451,654
+771,914 -> 771,332
+72,14 -> 72,574
+970,828 -> 197,55
+631,744 -> 631,746
+765,759 -> 119,113
+260,882 -> 262,882
+676,760 -> 61,145
+680,168 -> 959,168
+466,811 -> 466,745
+566,242 -> 566,471
+768,975 -> 768,75
+391,550 -> 391,591
+781,678 -> 771,678
+731,620 -> 951,620
+973,290 -> 973,664
+838,691 -> 835,691
+294,240 -> 378,240
+390,708 -> 908,190
+521,933 -> 963,933
+358,46 -> 919,46
+431,410 -> 431,297
+833,706 -> 330,706
+13,910 -> 876,910
+619,567 -> 619,398
+165,779 -> 165,941
+21,139 -> 21,535
+921,420 -> 358,420
+629,111 -> 608,111
+654,244 -> 654,500
+982,386 -> 982,841
+252,127 -> 144,235
+144,518 -> 144,344
+581,589 -> 130,138
+927,835 -> 882,790
+859,658 -> 320,119
+110,326 -> 110,168
+149,64 -> 917,832
+651,771 -> 897,771
+788,66 -> 231,623
+710,608 -> 370,268
+927,175 -> 778,26
+957,970 -> 53,66
+350,313 -> 350,192
+115,505 -> 129,505
+414,163 -> 182,163
+874,334 -> 532,676
+441,790 -> 441,976
+66,162 -> 226,162
+839,453 -> 310,982
+63,974 -> 132,974
+51,383 -> 297,137
+343,954 -> 262,873
+726,474 -> 637,563
+449,205 -> 449,279
+855,845 -> 722,845
+28,750 -> 33,750
+272,175 -> 212,235
+428,172 -> 710,172
+824,834 -> 824,557
+25,864 -> 855,34
+66,425 -> 84,425
+456,812 -> 456,785
+286,294 -> 73,294
+400,329 -> 525,204
+888,160 -> 888,124
+879,742 -> 761,742
+893,751 -> 858,786
+621,765 -> 10,154
+162,280 -> 162,889
+96,830 -> 646,280
+646,720 -> 250,324
+367,586 -> 695,258
+298,353 -> 566,621
+813,256 -> 813,367
+559,672 -> 471,672
+951,187 -> 234,904
+868,753 -> 80,753
+91,937 -> 803,225
+112,142 -> 18,236
+936,281 -> 936,976
+95,867 -> 753,209
+421,735 -> 833,735
+830,755 -> 963,755
+355,272 -> 355,70
+309,479 -> 309,45
+951,145 -> 676,145
+513,143 -> 713,143
+491,565 -> 988,68
+797,742 -> 596,541
+581,621 -> 277,317
+132,480 -> 101,480
+140,72 -> 375,72
+524,221 -> 897,594
+694,549 -> 179,34
+689,729 -> 689,527
+27,953 -> 27,32
+913,774 -> 913,705
+669,861 -> 669,360
+454,250 -> 454,344
+863,95 -> 13,945
+341,50 -> 341,795
+863,50 -> 212,50
+73,689 -> 143,689
+944,20 -> 31,933
+22,988 -> 873,137
+798,552 -> 798,774
+935,583 -> 935,393
+462,176 -> 986,176
+739,400 -> 972,400
+441,31 -> 441,37
+628,381 -> 628,339
+545,345 -> 615,345
+91,736 -> 373,736
+825,738 -> 825,687
+541,877 -> 541,569
+750,739 -> 390,739
+873,384 -> 873,665
+597,61 -> 385,61
+518,62 -> 229,62
+623,192 -> 502,192
+163,861 -> 732,292
+748,304 -> 873,429
+375,436 -> 375,655
+146,228 -> 146,91
+808,844 -> 243,844
+174,115 -> 982,923
+598,384 -> 598,956
+932,736 -> 843,736
+772,110 -> 883,110
+298,960 -> 852,406
+744,772 -> 693,823
+605,639 -> 731,639
+126,770 -> 732,164
+13,986 -> 988,11
+756,37 -> 756,164
+132,900 -> 984,48
+806,524 -> 331,524
+84,645 -> 84,195
+329,447 -> 939,447
+684,566 -> 793,566
+747,595 -> 747,181
+293,121 -> 430,121
+42,918 -> 826,918
+32,312 -> 833,312
+42,309 -> 42,752
+332,74 -> 736,74
+699,209 -> 495,209
+297,113 -> 297,827
+515,973 -> 515,35
+774,951 -> 774,290
+471,921 -> 919,921
+297,282 -> 297,524
+477,825 -> 477,343
+220,665 -> 351,796
+483,128 -> 376,128
--- a/data/day_6.txt
+++ b/data/day_6.txt
@@ -0,0 +1 @@
+1,4,2,4,5,3,5,2,2,5,2,1,2,4,5,2,3,5,4,3,3,1,2,3,2,1,4,4,2,1,1,4,1,4,4,4,1,4,2,4,3,3,3,3,1,1,5,4,2,5,2,4,2,2,3,1,2,5,2,4,1,5,3,5,1,4,5,3,1,4,5,2,4,5,3,1,2,5,1,2,2,1,5,5,1,1,1,4,2,5,4,3,3,1,3,4,1,1,2,2,2,5,4,4,3,2,1,1,1,1,2,5,1,3,2,1,4,4,2,1,4,5,2,5,5,3,3,1,3,2,2,3,4,1,3,1,5,4,2,5,2,4,1,5,1,4,5,1,2,4,4,1,4,1,4,4,2,2,5,4,1,3,1,3,3,1,5,1,5,5,5,1,3,1,2,1,4,5,4,4,1,3,3,1,4,1,2,1,3,2,1,5,5,3,3,1,3,5,1,5,3,5,3,1,1,1,1,4,4,3,5,5,1,1,2,2,5,5,3,2,5,2,3,4,4,1,1,2,2,4,3,5,5,1,1,5,4,3,1,3,1,2,4,4,4,4,1,4,3,4,1,3,5,5,5,1,3,5,4,3,1,3,5,4,4,3,4,2,1,1,3,1,1,2,4,1,4,1,1,1,5,5,1,3,4,1,1,5,4,4,2,2,1,3,4,4,2,2,2,3
--- a/data/day_7.txt
+++ b/data/day_7.txt
@@ -0,0 +1 @@
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--- a/data/day_8.txt
+++ b/data/day_8.txt
@@ -0,0 +1,200 @@
+dbcfeag cgaed fe bfgad aefcdb efa efgda gcef dcaebg dfeagc | fae cfge fae baefdc
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+abdef bc gecaf dbcgfae cbfg efcba bac acebfg degcba dcegfa | bcfadeg afceb edfgac gcabed
+bfcged bgdac becad fagc aegbdfc gacfdb dbgfc dafgbe ga bga | fgdecab abdcg cefabdg egdbfa
+abcfg baecf agec fcgaeb agedbf ag dacfbeg bag eafcdb fcgdb | bcdfea efdabg ga fdbgc
+ba baf dfbgce cgab cefgdab efcad efacbg cgfeb ebafgd cafeb | fdcegb abf baf ecabf
+cegafd egdcba gbedf cgfde cfad ecf fcegadb eagdc bgaefc cf | bfged defgb gbfed efc
+gedfa abdce fadbe ebfc fba badgce bf gabefcd fdbgac befcad | bcdgaf fdbgca bfa fgbdca
+bacef cg dgabec agfc edfgb cge agfdbec fcabeg cgebf abfdce | decfbga cagf adcgbe dgefb
+eafgd ce fbgaced ecfga eafdgc gdce cea cefdba cbfag bdgafe | eadfbg dgec efgca degfa
+decgabf fecd acd acbegf agdec gabed gacbfd faceg cd fgeadc | dc dcafge abecgf dc
+egd fdaebg gcbeadf fcdge ge adecf gbce dgfbac dcfgeb gdbcf | fdcae gfdbea bdfcg eg
+ad cbafe dabe dfa gbfcea ceafd dcbagf fabdce bfceadg dfgec | cebaf aecbgdf cgdbfa fbaec
+fc cdgbae gfcbad badcg fcdba feadb fac cgefad fdgbeac gfbc | cf cfabd caf gdfcea
+fdgace edac cdfag de dcfge facebgd cgebf dfebag def bafgdc | fdgac gacfbed edgacf dgcfa
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+bc gdfeac fbaec egfcba dacbeg cab gacbfde eabfd faceg fgcb | afbegc cdgabe bagecf ebcdga
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+efab cbedg aedfbc bfcad geacfd ea fabdcg adbfgce ade ecabd | fdceba bfceda ecgdfa aefcdg
--- a/data/day_9.txt
+++ b/data/day_9.txt
@@ -0,0 +1,100 @@
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--- a/src/day_10.jl
+++ b/src/day_10.jl
@@ -0,0 +1,63 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Combinatorics
+
+
+function check_line(l, dict, scores)
+		braces = []
+		for b in l
+			if b in keys(dict)
+				push!(braces, b)
+				continue
+			end
+			if length(braces) != 0 && b == dict[braces[end]]
+				pop!(braces)
+			else
+				return scores[b]
+			end
+		end
+		return 0
+end
+
+function p1(input::Vector{String})
+	dict = Dict('(' => ')', '[' => ']', '<' => '>', '{' => '}')
+	scores = Dict(')' => 3,	']' => 57, '>' => 25137, '}' => 1197)
+	return sum([ check_line(l, dict, scores) for l in input ])
+end
+
+function complete(l, dict)
+	braces = []
+	for b in l
+		if b in keys(dict)
+			push!(braces, b)
+			continue
+		end
+		if length(braces) != 0 && b == dict[braces[end]]
+			pop!(braces)
+		end
+	end
+	out = []
+	for c in reverse(braces)
+		push!(out, dict[c])
+	end
+	return out
+end
+
+function p2(input::Vector{String})
+	dict = Dict('(' => ')','[' => ']',	'<' => '>',	'{' => '}')
+	scores = Dict(')' => 1,']' => 2,'}' => 3,'>' => 4)
+	remaining = filter(x -> check_line(x, dict, scores) == 0, input)
+	a = [complete(x, dict) for x in remaining]
+	out = []
+	for e in a
+		score = 0
+		for c in e
+			score = score * 5 + scores[c]
+		end
+		push!(out, score)
+	end
+	return sort(out)[convert(Int,round(length(out)/2, RoundUp))]
+end
+
+@aoc(2021, 10)
--- a/src/day_11.jl
+++ b/src/day_11.jl
@@ -0,0 +1,78 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Combinatorics
+
+
+function step(map, copy, x, y)
+	level = copy[x][y] = map[x][y] + 1
+	if level == 10
+		global flahes = flashes + 1
+		for (x,y) in zip([-1,0,1,-1,1,-1,0,1], [1,1,1,0,0,-1,-1,-1])
+			if x in 1:length(map) && y in 1:length(map[1])
+				step(map, copy, x, y)
+			end
+		end
+	end
+end
+
+function solve(input, part)
+	map = [ parse.(Int, collect(l)) for l in input ]
+	elements = length(map) * length(map[1])
+	sum = 0
+	step = 0
+
+	while true
+		step += 1
+		flash = []
+		flashed = []
+		for x in 1:length(map)
+			for y in 1:length(map[1])
+				map[x][y] += 1
+				if map[x][y] > 9
+					push!(flash, [x,y])
+					push!(flashed, [x,y])
+				end
+			end
+		end
+		while length(flash) != 0
+			x, y = pop!(flash)
+			for (i,j) in zip([-1,0,1,-1,1,-1,0,1], [1,1,1,0,0,-1,-1,-1])
+				nx = x + i
+				ny = y + j
+				if nx in 1:length(map) && ny in 1:length(map[1])
+					map[nx][ny] += 1
+					if map[nx][ny] > 9 && [nx, ny] ∉ flashed
+						push!(flash, [nx,ny])
+						push!(flashed, [nx,ny])
+					end
+				end
+			end
+		end
+
+		for (x,y) in flashed
+			map[x][y] = 0
+		end
+
+		sum += length(flashed)
+
+		if part == 1 && step == 100
+			break
+		end
+
+		if part == 2 && length(unique(flashed)) == elements
+			return step
+		end
+	end
+	return sum
+end
+
+function p1(input::Vector{String})
+	solve(input, 1)
+end
+
+function p2(input::Vector{String})
+	solve(input, 2)
+end
+
+@aoc(2021, 11)
--- a/src/day_12.jl
+++ b/src/day_12.jl
@@ -0,0 +1,43 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function visit(map, curr_cave, visited)
+	curr_cave == "end" ? (return 1) : nothing
+	curr_cave[begin] in 'a':'z' && curr_cave ∈ visited ? (return 0) : nothing
+
+	v = copy(visited)
+	push!(v, curr_cave)
+	return sum([ visit(map, e, v) for e in map[curr_cave] ])
+end
+
+function visit2(map, curr_cave, visited, d)
+	curr_cave == "end" ? (return 1) : nothing
+	curr_cave == "start" && length(visited) != 0 ? (return 0) : nothing
+	if curr_cave[begin] in 'a':'z' && curr_cave ∈ visited
+		d == nothing ? (d = curr_cave) : (return 0)
+	end
+	v = copy(visited)
+	push!(v, curr_cave)
+	return sum([ visit2(map, e, v, d) for e in map[curr_cave] ])
+end
+
+function prepare_input(input)
+	map = Dict()
+	for l in input
+		a, b = split(l, "-")
+		!haskey(map, a) ? (map[a] = [b]) : (push!(map[a], b))
+		!haskey(map, b) ? (map[b] = [a]) : (push!(map[b], a))
+	end
+	return map
+end
+
+function p1(input::Vector{String})
+	return visit(prepare_input(input), "start", [])
+end
+
+function p2(input::Vector{String})
+	return visit2(prepare_input(input), "start", [], nothing)
+end
+
+@aoc(2021, 12)
--- a/src/day_13.jl
+++ b/src/day_13.jl
@@ -0,0 +1,66 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function fold(grid, dir, at)
+	if dir == "x"
+		new = grid[:, 1:at]
+		rest = reverse(grid[:, at+2:end], dims=2)
+	else
+		new = grid[1:at, :]
+		rest = reverse(grid[at+2:end, :], dims=1)
+	end
+	lnewx, lnewy = (length(new[1, :]), length(new[:, 1]))
+	lrestx, lresty = (length(rest[1, :]), length(rest[:, 1]))
+	for y in 1:lresty, x in 1:lrestx
+		new[lnewy-lresty+y, lnewx-lrestx+x] = new[lnewy-lresty+y, lnewx-lrestx+x] || rest[y,x]
+	end
+	return new
+end
+
+function prep_input(input)
+	folds = []
+	holes = []
+	for l in input
+		if l == ""; continue; end
+		m = match(r"(\d+),(\d+)",l)
+		if m == nothing
+			c = match(r"(\w)=(\d+)", l).captures
+			push!(folds, [c[1], parse(Int, c[2])])
+		else
+			c = match(r"(\d+),(\d+)", l).captures
+			push!(holes, [parse(Int, c[1]), parse(Int, c[2])])
+		end
+	end
+	max_x = maximum(map(x-> x[1], holes))
+	max_y = maximum(map(x-> x[2], holes))
+	grid = falses((max_y+1, max_x+1))
+	for (x,y) in holes
+		grid[y+1,x+1] = true
+	end
+	return (grid, folds)
+end
+
+function print_grid(grid)
+	for y in 1:length(grid[:,1])
+		for x in 1:length(grid[1,:])
+			print(".#"[grid[y,x]+1])
+		end
+		println("")
+	end
+end
+
+function p1(input::Vector{String})
+	grid, folds = prep_input(input)
+	return sum(fold(grid, folds[1][1], folds[1][2]))
+end
+
+function p2(input::Vector{String})
+	grid, folds = prep_input(input)
+	for (dir, at) in folds
+		grid = fold(grid, dir, at)
+	end
+	print_grid(grid)
+end
+
+@aoc(2021, 13)
--- a/src/day_14.jl
+++ b/src/day_14.jl
@@ -0,0 +1,58 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function sliding(in, w::Int64; step::Int = 1)
+	((@view in[i:i+w-1]) for i in 1:step:length(in)-w+1)
+end
+
+function prep_input(input)
+	pairs = Dict()
+	for pair in sliding(input[1], 2)
+		!haskey(pairs, pair) ? (pairs[pair] = 0) : nothing
+		pairs[pair] += 1
+	end
+
+	dict = Dict()
+	for l in input[3:end]
+		p, t = split(l, " -> ")
+		dict[p] = (p[1] * t, t * p[2])
+	end
+	return (pairs, dict)
+end
+
+function step(pairs, dict)
+	new = Dict()
+	for pair in keys(pairs)
+		p1, p2 = dict[pair]
+		new[p1] = get(new, p1, 0) + pairs[pair]
+		new[p2] = get(new, p2, 0) + pairs[pair]
+	end
+	return new
+end
+
+function solve(pairs, dict, rounds, last)
+	for _ in 1:rounds
+		pairs = step(pairs, dict)
+	end
+
+	c = Dict()
+	for p in keys(pairs)
+		!haskey(c, p[1]) ? (c[p[1]] = 0) : nothing
+		c[p[1]] += pairs[p]
+	end
+	c[last] += 1 # add one more count for last character in polymer
+	return maximum(values(c)) - minimum(values(c))
+end
+
+function p1(input::Vector{String})
+	pairs, dict = prep_input(input)
+	return solve(pairs, dict, 10, input[begin][end])
+end
+
+function p2(input::Vector{String})
+	pairs, dict = prep_input(input)
+	return solve(pairs, dict, 40, input[begin][end])
+end
+
+@aoc(2021, 14)
--- a/src/day_15.jl
+++ b/src/day_15.jl
@@ -0,0 +1,47 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Graphs, SimpleWeightedGraphs
+
+function prep_input(input)
+	[ parse.(Int, collect(l)) for l in input ]
+end
+
+function lowest_cost(grid)
+	q = [(1,1,0)]
+	costs = Dict()
+	while true
+		x,y,c = popfirst!(q)
+		x == length(grid) && y == length(grid[1]) ? (return c) : nothing
+		for (x2, y2) in [(x+1,y),(x-1,y),(x,y-1),(x,y+1)]
+			if x2 in 1:length(grid) && y2 in 1:length(grid[1])
+				cost = c + grid[x2][y2]
+				(x2, y2) in keys(costs) && costs[(x2, y2)] <= cost ? (continue) : nothing
+				costs[(x2, y2)] = cost
+				push!(q, (x2, y2, cost))
+			end
+		end
+		sort!(q)
+	end
+end
+
+function p1(input::Vector{String})
+	grid = prep_input(input)
+	return lowest_cost(grid)
+end
+
+function p2(input::Vector{String})
+	grid = prep_input(input)
+	newgrid = [ zeros(Int, 5*length(grid[1])) for _ in 1:5*length(grid) ]
+
+	for x in 1:length(newgrid), y in 1:length(newgrid[1])
+		v = grid[x%length(grid)+1][y%length(grid[1])+1]
+		for _ in 1:((x-1) ÷ length(grid) + (y-1) ÷ length(grid[1])) # ÷ performs integer division
+			v + 1 == 10 ? (v = 1) : (v += 1)
+		end
+		newgrid[x][y] = v
+	end
+	return lowest_cost(newgrid)
+end
+
+@aoc(2021, 15)
--- a/src/day_16.jl
+++ b/src/day_16.jl
@@ -0,0 +1,73 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+
+function decode_packet(p, o, version)
+	version += parse(Int, p[o:o+2], base=2); o+=3
+	type = parse(Int, p[o:o+2], base = 2); o+=3
+
+	if type == 4
+		v = ""
+		while true
+			tmp = p[o:o+4]; o+=5
+			v *= tmp[2:end]
+			tmp[1] == '0' ? break : continue
+		end
+		value = parse(Int, v, base=2)
+	else
+		length_type = p[o]; o+=1
+		sub_values = []
+		if length_type == '0'
+			length = parse(Int, p[o:o+14], base=2); o+=15
+			target = o + length
+			while o < target
+				v, o, version = decode_packet(p, o, version)
+				push!(sub_values, v)
+			end
+		else
+			num = parse(Int, p[o:o+10], base=2); o+=11
+			for _ in 1:num
+				v, o, version = decode_packet(p, o, version)
+				push!(sub_values, v)
+			end
+		end
+	end
+	
+	if type == 0
+		value = sum(sub_values)
+	elseif type == 1 
+		value = prod(sub_values)
+	elseif type == 2
+		value = minimum(sub_values)
+	elseif type == 3
+		value = maximum(sub_values)
+	elseif type == 5
+		value = sub_values[begin] > sub_values[end] ? 1 : 0
+	elseif type == 6
+		value = sub_values[begin] < sub_values[end] ? 1 : 0
+	elseif type == 7
+		value = sub_values[begin] == sub_values[end] ? 1 : 0
+	end
+	return (value, o, version)
+end
+
+function p1(input::Vector{String})
+	packet = ""
+	for c in input[1]
+		packet *= bitstring(Int8(parse(Int, c, base = 16)))[5:end]
+	end
+	v, _, version = decode_packet(packet, 1, 0)
+	return version
+end
+
+function p2(input::Vector{String})
+	packet = ""
+	for c in input[1]
+		packet *= bitstring(Int8(parse(Int, c, base = 16)))[5:end]
+	end
+	v, _ = decode_packet(packet, 1, 0)
+	return v
+end
+
+@aoc(2021, 16)
--- a/src/day_17.jl
+++ b/src/day_17.jl
@@ -0,0 +1,38 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function solve(input)
+	x1, x2, y1, y2 = parse.(Int, match(r"target area: x=(-?\d+)..(-?\d+), y=(-?\d+)..(-?\d+)", input).captures)
+	total = 0
+	best = 0
+	for vx in isqrt(2x1)+1:x2, vy in y1:abs(y1)
+		x,y,maxy = 0,0,0
+		Δx, Δy = vx, vy
+		found = passed = false
+		while true
+			inside = false
+			x += Δx; y += Δy
+			Δx -= sign(Δx); Δy -= 1
+			y > maxy && (maxy = y)
+			if x in x1:x2 && y in y1:y2
+				inside = true
+				!found && (total += 1); found = true
+				maxy > best  && (best = maxy)
+			end
+			(found && !inside) && break
+			y < y1 && break
+		end
+	end
+	return (best, total)
+end
+
+function p1(input::Vector{String})
+	return solve(input[1])[1]
+end
+
+function p2(input::Vector{String})
+	return solve(input[1])[2]
+end
+
+@aoc(2021, 17)
--- a/src/day_18.jl
+++ b/src/day_18.jl
@@ -0,0 +1,69 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Combinatorics
+
+function addn(v, n, dir)
+ 	n == nothing && (return v)
+	typeof(v) == Int && (return v+n)
+	if dir == "left"
+		return [addn(v[1], n, "left"), v[2]]
+	else
+		return [v[1], addn(v[2], n, "right")]
+	end
+end
+
+function arrexplode(v, n = 4)
+	typeof(v) == Int && (return (false, nothing, v, nothing))
+	n == 0 && (return true, v[1], 0, v[2])
+
+	l, r = v
+	exploded, t, l, w = arrexplode(l, n-1)
+	exploded && (return true, t, [l, addn(r, w, "left")], nothing)
+	exploded, t, r, w = arrexplode(r, n-1)
+	exploded && (return true, nothing, [addn(l, t, "right"), r], w)
+
+	false, nothing, v, nothing
+end
+
+function arrsplit(v)
+	if typeof(v) == Int
+		v > 9 && (return true, [v ÷ 2, Int(round(v/2, RoundUp))])
+		return false, v
+	end
+	l, r = v
+	changed, l = arrsplit(l)
+	changed && (return true, [l,r])
+	changed, r = arrsplit(r)
+
+	changed, [l,r]
+end
+
+function arradd(l, r)
+	sum = [l,r]
+	while true
+		changed, t, sum, w = arrexplode(sum)
+		changed && continue
+		changed, sum = arrsplit(sum)
+		changed && continue
+		break
+	end
+	sum
+end
+
+function magn(v)
+	typeof(v) == Int && (return v)
+	3*magn(v[1]) + 2*magn(v[2])
+end
+
+function p1(input::Vector{String})
+	numbers = [ eval(Meta.parse(x)) for x in input ]
+	magn(reduce(arradd, numbers))
+end
+
+function p2(input::Vector{String})
+	numbers = [ eval(Meta.parse(x)) for x in input ]
+	maximum([magn(arradd(l,r)) for (l, r) in Combinatorics.permutations(numbers, 2)])
+end
+
+@aoc(2021, 18)
--- a/src/day_19.jl
+++ b/src/day_19.jl
@@ -0,0 +1,86 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Combinatorics
+
+function prepare_input(input)
+	dict = []
+	tmp = []
+	for l in input
+		l == "" && continue
+		m = match(r"--- scanner (\d+) ---", l)
+		if m != nothing
+			length(tmp) != 0 && push!(dict, tmp)
+			tmp = []
+			continue
+		end
+		push!(tmp, parse.(Int, split(l, ",")))
+	end
+	dict
+end
+
+function align(a,b, negs, distances)
+	a2 = Set(a)
+	for re in 1:6, neg in negs
+		newb = [ neg .* collect(Combinatorics.permutations(s,3))[re] for s in b ]
+		for p1 in a2, p2 in newb
+			count = 0
+			remapped = []
+			dist = p2 .- p1
+			for b2 in newb
+				to_a = b2 .- dist
+				to_a in a2 && (count += 1)
+				push!(remapped, to_a)
+			end
+			if count >= 12
+				println("match $dist")
+				push!(distances, dist)
+				return true, remapped
+			end
+		end
+	end
+	return false, []
+end
+
+function p1(input::Vector{String})
+	@info "Something is brken. This may take 5 minutes or more to get a slightly wrong result."
+	negations = [
+		[1,1,1],
+		[-1,1,1],
+		[1,-1,1],
+		[1,1,-1],
+		[-1,-1,1],
+		[-1,1,-1],
+		[-1,-1,-1],
+		[1,-1,-1]
+	]
+	list = prepare_input(input)
+	aligned_idx = Set(1)
+	aligned = Dict(1 => list[1])
+	beacons = copy(list[1])
+	dont_align = Set()
+	distances = [[0,0,0]]
+	while length(aligned_idx) < length(list)
+		for i in 1:length(list)
+			i in aligned_idx && continue
+			for j in sort(collect(aligned_idx))
+				println("checking $i against $j")
+				(i,j) in dont_align && continue
+				found, remapped = align(aligned[j], list[i], negations, distances)
+				if found
+					push!(aligned_idx, i)
+					aligned[i] = remapped
+					beacons = vcat(beacons, remapped)
+					break
+				end
+				push!(dont_align, (i,j))
+			end
+		end
+	end
+	return length(beacons)
+end
+
+function p2(input::Vector{String})
+end
+
+@aoc(2021, 19)
--- a/src/day_2.jl
+++ b/src/day_2.jl
@@ -0,0 +1,41 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+
+function sliding(in, w::Int64; step::Int = 1)
+  ((@view in[i:i+w-1]) for i in 1:step:length(in)-w+1)
+end
+
+
+function p1(input::Vector{String})
+  d = [0, 0]
+  for i ∈ input
+    c = match(r"(\w+)\s(\d+)", i).captures
+    if c[1] == "forward"
+      d[1] += parse(Int, c[2])
+    elseif c[1] == "down"
+      d[2] += parse(Int, c[2])
+    elseif c[1] == "up"
+      d[2] -= parse(Int, c[2])
+    end
+  end
+  prod(d)
+end
+
+
+function p2(input::Vector{String})
+  d = [0, 0, 0]
+  for i ∈ input
+    c = match(r"(\w+)\s(\d+)", i).captures
+    if c[1] == "forward"
+      d[1] += parse(Int, c[2])
+      d[2] += parse(Int, c[2]) * d[3]
+    elseif c[1] == "down"
+      d[3] += parse(Int, c[2])
+    elseif c[1] == "up"
+      d[3] -= parse(Int, c[2])
+    end
+  end
+  prod(d[1:2])
+end
+
+@aoc(2021, 2)
--- a/src/day_20.jl
+++ b/src/day_20.jl
@@ -0,0 +1,60 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function prepare_input(input)
+	code = [ (c == '#') for c in input[1] ]
+	image = []
+
+	for l in input[3:end]
+		push!(image, [ (c == '#') for c in l ])
+	end
+	code, image
+end
+
+function neighbours(i,j)
+	( (i+y,j+x) for (y, x) in zip([-1,-1,-1,0,0,0,1,1,1], [-1,0,1,-1,0,1,-1,0,1]))
+end
+
+function get_value(image, y, x, bool)
+	( 1 <= y <= length(image)  && 1 <= x <= length(image[1])) && return image[y][x]
+	bool
+end
+
+function apply_alg(image, code, bool)
+	w = length(image[1])
+	h = length(image)
+	newimage = []
+	for y in 0:h+1
+		row = []
+		for x in 0:w+1
+			values = [ get_value(image, y2, x2, bool) for (y2,x2) in neighbours(y, x)]
+			idx = parse(Int, join(map(b->b ? 1 : 0, values)), base=2)
+			push!(row, code[idx+1])
+		end
+		push!(newimage, row)
+	end
+	newimage
+end
+
+function p1(input::Vector{String})
+	code, image = prepare_input(input)
+	bool = false
+	for _ in 1:2
+		image = apply_alg(image, code, bool)
+		bool = !bool
+	end
+	return sum(vcat(image...))
+end
+
+function p2(input::Vector{String})
+	code, image = prepare_input(input)
+	bool = false
+	for _ in 1:50
+		image = apply_alg(image, code, bool)
+		bool = !bool
+	end
+	return sum(vcat(image...))
+end
+
+@aoc(2021, 20)
--- a/src/day_21.jl
+++ b/src/day_21.jl
@@ -0,0 +1,54 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function prepare_input(input)
+	p1 = parse(Int, match(r"position: (\d)", input[1]).captures[1])
+	p2 = parse(Int, match(r"position: (\d)", input[2]).captures[1])
+	[p1, p2]
+end
+
+function p1(input::Vector{String})
+	p = prepare_input(input)
+	score = [0,0]
+	d = 1
+	while true
+		for i in 1:2
+			np = (p[i] + sum(d:d+2)) % 10 
+			d += 3
+			score[i] += p[i] = np
+			score[i] >= 1000 && return (score[i==1 ? 2 : 1]*(d-1))
+		end
+	end
+end
+
+function simulate(position, score, mul, scores)
+	s = popfirst!(scores)
+	for (throw, chances) in [(3, 1),(4, 3),(5, 6),(6, 7),(7, 6),(8, 3),(9, 1)]
+		position2 = (position + throw) % 10
+		score2 = score + (position2 == 0 ? 10 : position2)
+		paths = mul * chances
+		if score2 >= 21
+			s[1] += paths
+		else
+			s[2] += paths
+			simulate(position2, score2, paths, scores)
+		end
+	end
+	pushfirst!(scores, s)
+end
+
+function p2(input::Vector{String})
+	p = prepare_input(input)
+	
+	s1 = [ [0,0] for _ in 1:11 ]
+	simulate(p[1], 0, 1, s1)
+	s2 = [ [0,0] for _ in 1:11 ]
+	simulate(p[2], 0, 1, s2)
+
+	w1 = sum(map(x -> x[1][1] * x[2][2], zip(s1[2:end], s2)))
+	w2 = sum(map(x -> x[1][1] * x[2][2], zip(s2, s1)))
+	return w1 > w2 ? w1 : w2
+end
+
+@aoc(2021, 21)
--- a/src/day_22.jl
+++ b/src/day_22.jl
@@ -0,0 +1,58 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function prepare_input(input)
+	out = []
+	for l in input
+		on = l[1:3] == "on "
+		n = split(l, ",")
+		cords = [ parse.(Int, match(r"(-?\d+)\.\.(-?\d+)", r).captures) for r in n ]
+		push!(out, (on, cords))
+	end
+	out
+end
+
+function p1(input::Vector{String})
+	list = prepare_input(input)
+	dict = Dict()
+	for (on, range) in list
+		xmin = range[1][1] < -50 ? -50 : range[1][1]
+		ymin = range[2][1] < -50 ? -50 : range[2][1]
+		zmin = range[3][1] < -50 ? -50 : range[3][1]
+		xmax = range[1][2] > 50 ? 50 : range[1][2]
+		ymax = range[2][2] > 50 ? 50 : range[2][2]
+		zmax = range[3][2] > 50 ? 50 : range[3][2]
+		for x in xmin:xmax, y in ymin:ymax, z in zmin:zmax
+			dict[(x,y,z)] = on
+		end
+	end
+	return sum(collect(values(dict)))
+end
+
+function p2(input::Vector{String})
+	list = prepare_input(input)
+	cubes = []
+	for (on, ((xmin, xmax),(ymin, ymax),(zmin, zmax))) in list
+		for i in 1:length(cubes)
+			(xmin2,xmax2,ymin2,ymax2,zmin2,zmax2) = cubes[i]
+			if xmin > xmax2 || xmax < xmin2 || ymin > ymax2 || ymax < ymin2 ||zmin > zmax2 || zmax < zmin2
+				# new cube does not intersect with the current one
+				continue
+			end
+			# the new cube intersects the current cube, mark current cube for removal and divide it into smaller cubes that dont intersect the new cube
+			cubes[i] = nothing # unset the element to keep positions constant fo ths step
+			(xmin > xmin2) && push!(cubes, (xmin2          , xmin-1          , ymin2          , ymax2          , zmin2   , zmax2   ))
+			(xmax < xmax2) && push!(cubes, (xmax + 1       , xmax2           , ymin2          , ymax2          , zmin2   , zmax2   ))
+			(ymin > ymin2) && push!(cubes, (max(xmin,xmin2), min(xmax, xmax2), ymin2          , ymin - 1       , zmin2   , zmax2   ))
+			(ymax < ymax2) && push!(cubes, (max(xmin,xmin2), min(xmax, xmax2), ymax + 1       , ymax2          , zmin2   , zmax2   ))
+			(zmin > zmin2) && push!(cubes, (max(xmin,xmin2), min(xmax, xmax2), max(ymin,ymin2), min(ymax,ymax2), zmin2   , zmin - 1))
+			(zmax < zmax2) && push!(cubes, (max(xmin,xmin2), min(xmax, xmax2), max(ymin,ymin2), min(ymax,ymax2), zmax + 1, zmax2   ))
+		end
+		on && push!(cubes, (xmin, xmax, ymin, ymax, zmin, zmax)) # Add cube if on
+		filter!(!=(nothing), cubes) # delete the unset elements
+	end
+	sum([ (xmax-xmin+1) * (ymax-ymin+1) * (zmax-zmin+1) for (xmin,xmax,ymin,ymax,zmin,zmax) in cubes ])
+end
+
+@aoc(2021, 22)
--- a/src/day_23.jl
+++ b/src/day_23.jl
@@ -0,0 +1,17 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function prepare_input(input)
+	zip(match(r"(\w)", input[3]).captures, match(r"(\w)", input[4]).captures)
+end
+
+function p1(input::Vector{String})
+rooms = prepare_input(input)
+@info rooms
+end
+
+function p2(input::Vector{String})
+end
+
+@aoc(2021, 23)
--- a/src/day_24.jl
+++ b/src/day_24.jl
@@ -0,0 +1,51 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Memoization
+
+function calc(i, w, z, add_x, add_y, div_z)
+	x = add_x[i] + (z % 26)
+	z = z ÷ div_z[i]
+	x != w && (z = z * 26 + w + add_y[i])
+	z
+end
+
+@memoize function find_solution(i, z, add_x, add_y, div_z)
+	(i == 15 && z == 0) && return [""]
+	i == 15 && return []
+
+	x = add_x[i] + (z % 26)
+	possible_numbers = collect(1:9)
+	x in 1:9 && (possible_numbers = [x])
+	out = []
+	for num in possible_numbers
+		nextz = calc(i, num, z, add_x, add_y, div_z)
+		nextxs = find_solution(i + 1, nextz, add_x, add_y, div_z)
+		for x2 in nextxs
+			push!(out, string(num) * x2)
+		end
+	end
+	out
+end
+
+function p1(input::Vector{String})
+	add_x = []
+	add_y = []
+	div_z = []
+	for (i, l) in enumerate(input)
+		(contains(l, "add x") && !contains(l, "add x z")) && push!(add_x, parse(Int, split(l, " ")[3]))
+		(contains(l, "add y") && ((i-1) % 18 == 15)) && push!(add_y, parse(Int, split(l, " ")[3]))
+		contains(l, "div z") && push!(div_z, parse(Int, split(l, " ")[3]))
+	end
+	@info add_x
+	@info add_y
+	@info div_z
+	solutions = [ parse(Int, s) for s in find_solution(1, 0, add_x, add_y, div_z) ]
+	minimum(solutions), maximum(solutions), length(solutions)
+end
+
+function p2(input::Vector{String})
+	"P2 solution is part of P1"
+end
+
+@aoc(2021, 24)
--- a/src/day_25.jl
+++ b/src/day_25.jl
@@ -0,0 +1,37 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Memoization
+
+function p1(input::Vector{String})
+	grid =  [ collect(l) for l in input]
+	steps = 0
+	while true
+		steps += 1
+		moved = false
+		tmp = deepcopy(grid)
+		for y in 1:length(grid), x in 1:length(grid[1])
+			if grid[y][x] == '>' && grid[y][x%length(grid[1])+1] == '.'
+					moved = true
+					tmp[y][x%length(grid[1])+1] = '>'
+					tmp[y][x] = '.'
+			end
+		end
+		tmp2 = deepcopy(tmp)
+		for y in 1:length(tmp), x in 1:length(grid[1])
+			if tmp[y][x] == 'v' && tmp[y%length(grid)+1][x] == '.'
+					moved = true
+				tmp2[y%length(grid)+1][x] = 'v'
+					tmp2[y][x] = '.'
+			end
+		end
+		!moved && (return steps)
+		grid = tmp2
+	end
+end
+
+function p2(input::Vector{String})
+	"Day 25 has no Part 2"
+end
+
+@aoc(2021, 25)
--- a/src/day_3.jl
+++ b/src/day_3.jl
@@ -0,0 +1,40 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+
+
+function p1(input::Vector{String})
+  γ = ""
+  ϵ = ""
+  for n in 1:length(input[1])
+    bits = map(x -> parse(Int, x[n]), input)
+    more_ones = sum(bits) > length(bits) / 2
+    γ *= more_ones ? "1" : "0"
+    ϵ *= more_ones ? "0" : "1"
+  end
+  parse(Int, γ; base=2) * parse(Int, ϵ; base=2)
+end
+
+
+function p2(input::Vector{String})
+  i1 = copy(input)
+  i2 = copy(input)
+  o₂ = ""
+  co₂ = ""
+  for i in 1:length(input[1])
+    o₂bits = map(x -> parse(Int, x[i]), i1)
+    co₂bits = map(x -> parse(Int, x[i]), i2)
+    
+    o₂mc = sum(o₂bits) >= length(o₂bits) / 2 ? '1' : '0'
+    co₂mc = sum(co₂bits) >= length(co₂bits) / 2 ? '0' : '1'
+
+    filter!(x -> x[i] == o₂mc, i1)
+    filter!(x -> x[i] == co₂mc, i2)
+
+    length(i1) == 1 && o₂ == "" ? (o₂ = i1[1]) : nothing
+    length(i2) == 1 && co₂ == "" ? (co₂ = i2[1]) : nothing
+    o₂ != "" && co₂ != "" ? break : continue
+  end
+  parse(Int, o₂; base=2) * parse(Int, co₂; base=2)
+end
+
+@aoc(2021, 3)
--- a/src/day_4.jl
+++ b/src/day_4.jl
@@ -0,0 +1,76 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function read_boards(input)
+  in = filter(!=(""), input)
+  boards = []
+  for i in 1:5:length(in)
+    board = []
+    for x in 0:4
+      row = @pipe split(in[i+x], " ") |> filter(!=(""), _) |> parse.(Int, _)
+      push!(board, row)
+    end
+    push!(boards, vcat(board...))
+  end
+
+  return boards
+end
+
+function mark_board(board, n)
+  idx = findall(==(n), board)
+  for i in idx
+    board[i] = -1
+  end
+end
+
+function is_winner(board)
+  for i in 1:5:length(board)
+    if unique(board[i:i+4]) == [-1]
+      return true
+    end
+  end
+
+  for x in 1:5
+    if unique(board[x:5:length(board)]) == [-1]
+      return true
+    end
+  end
+  return false
+end
+
+function score(board, n)
+  sum(filter(!=(-1), board)) * n
+end
+
+function scores(numbers, boards)
+  scores = []
+  winners = []
+  for n in numbers
+    for (i, board) in enumerate(boards)
+      i in winners ? continue : mark_board(board, n)
+      if is_winner(board)
+        push!(winners, i)
+        push!(scores, score(board, n))
+      end
+    end
+  end
+  return scores
+end
+
+function p1(input::Vector{String})
+  numbers = @pipe split(input[1], ",") |> parse.(Int, _)
+
+  boards = read_boards(input[3:end])
+  return scores(numbers, boards)[1]
+end
+
+
+function p2(input::Vector{String})
+  numbers = @pipe split(input[1], ",") |> parse.(Int, _)
+
+  boards = read_boards(input[3:end])
+  return scores(numbers, boards)[end]
+end
+
+@aoc(2021, 4)
--- a/src/day_5.jl
+++ b/src/day_5.jl
@@ -0,0 +1,51 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+function parse_line(input)
+	c = match(r"(\d+),(\d+) -> (\d+),(\d+)", input).captures
+	return parse.(Int, c)
+end
+
+function p1(input::Vector{String})
+	board = Dict{Tuple{Int64, Int64}, Int64}()
+	for l in input
+		p = parse_line(l)
+		if p[1] == p[3] || p[2] == p[4]
+			xstep = p[1] > p[3] ? -1 : 1
+			ystep = p[2] > p[4] ? -1 : 1
+			for x in p[1]:xstep:p[3]
+				for y in p[2]:ystep:p[4]
+					(x,y) in keys(board) ? (board[(x,y)] += 1) : (board[(x,y)] = 1)
+				end
+			end
+		end
+	end
+	return count(>=(2), values(board))
+end
+
+
+function p2(input::Vector{String})
+	board = Dict{Tuple{Int64, Int64}, Int64}()
+	for l in input
+		p = parse_line(l)
+		if p[1] == p[3] || p[2] == p[4]
+			xstep = p[1] > p[3] ? -1 : 1
+			ystep = p[2] > p[4] ? -1 : 1
+			for x in p[1]:xstep:p[3]
+				for y in p[2]:ystep:p[4]
+					(x,y) in keys(board) ? (board[(x,y)] += 1) : (board[(x,y)] = 1)
+				end
+			end
+		elseif abs(p[1] - p[3]) == abs(p[2] - p[4])
+			xstep = p[1] > p[3] ? -1 : 1
+			ystep = p[2] > p[4] ? -1 : 1
+			for(x,y) in zip(p[1]:xstep:p[3], p[2]:ystep:p[4])
+				(x,y) in keys(board) ? (board[(x,y)] += 1) : (board[(x,y)] = 1)
+			end
+		end
+	end
+	return count(>=(2), values(board))
+end
+
+@aoc(2021, 5)
--- a/src/day_6.jl
+++ b/src/day_6.jl
@@ -0,0 +1,29 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+
+function solve(input::Vector{String}, days::Int64)
+	fish = @pipe split(input[1], ",") |> parse.(Int, _)
+	state = Dict{Int, Int}([ [x, count(==(x), fish)] for x in 0:8 ])
+
+	for _ in 1:days
+		next_day = Dict{Int, Int}([ [x, 0] for x in 0:8 ])
+		next_day[8] = next_day[6] = state[0]
+		for i in 0:7
+			next_day[i] += state[i+1]
+		end
+		state = next_day
+	end
+	return sum(values(state))
+end
+
+function p1(input::Vector{String})
+	return solve(input, 80)
+end
+
+function p2(input::Vector{String})
+	return solve(input, 256)
+end
+
+@aoc(2021, 6)
--- a/src/day_7.jl
+++ b/src/day_7.jl
@@ -0,0 +1,16 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+
+
+function p1(input::Vector{String})
+	pos = @pipe split(input[1], ",") |> parse.(Int, _)
+	return minimum([ sum(abs.(i .- pos)) for i in minimum(pos):maximum(pos) ])
+end
+
+function p2(input::Vector{String})
+	pos = @pipe split(input[1], ",") |> parse.(Int, _)
+	return minimum([ sum(sum.(range.(1, abs.(i .- pos); step = 1))) for i in minimum(pos):maximum(pos) ])
+end
+
+@aoc(2021, 7)
--- a/src/day_8.jl
+++ b/src/day_8.jl
@@ -0,0 +1,53 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Combinatorics
+
+
+function p1(input::Vector{String})
+	count = 0
+	for l in input
+		digits = @pipe split(l, "|")[end] |> split(_, " ") |> filter(!=(""), _)
+		for d in digits
+			for i in [2,3,4,7]
+				if length(d) == i
+					count += 1
+				end
+			end
+		end
+	end
+	return count
+end
+
+function get_digit(i, o, digits)
+	for permutation in Combinatorics.permutations("abcdefg")
+		dict = Dict([[x, y] for (x,y) in zip(permutation, "abcdefg")])
+		if all([ x in keys(digits) for x in map(x -> (join(sort([dict[y] for y in x]))), i)])
+			return parse(Int, join([ digits[join(sort([dict[y] for y in x]))] for x in o]))
+		end
+	end
+end
+
+function p2(input::Vector{String})
+	sum = 0
+	dict = Dict{String, Int}(
+		"abcefg" => 0,
+		"cf" => 1,
+		"acdeg" => 2,
+		"acdfg" => 3,
+		"bcdf" => 4,
+		"abdfg" => 5,
+		"abdefg" => 6,
+		"acf" => 7,
+		"abcdefg" => 8,
+		"abcdfg" => 9
+	)
+	for l in input
+		i = @pipe split(l, "|")[begin] |> split(_, " ") |> filter(!=(""), _)
+		o = @pipe split(l, "|")[end] |> split(_, " ") |> filter(!=(""), _)
+		sum+=get_digit(i,o,dict)
+	end
+	return sum
+end
+
+@aoc(2021, 8)
--- a/src/day_9.jl
+++ b/src/day_9.jl
@@ -0,0 +1,61 @@
+include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
+import .Aoc: @aoc
+using Pipe: @pipe
+using Combinatorics
+
+
+function lowpoints(map)
+	low = Dict()
+	for x in 1:length(map)
+		for y in 1:length(map[1])
+			adjacent = []
+			for (i,j) in [ [x+i,y+j] for (i,j) in zip([0,1,0,-1], [1,0,-1,0]) ]
+				if i in 1:length(map) && j in 1:length(map[1])
+					push!(adjacent, map[i][j])
+				end
+			end
+			if map[x][y] < minimum(adjacent)
+				low[[x,y]] = map[x][y]
+			end
+		end
+	end
+	return low
+end
+
+function p1(input::Vector{String})
+	map = [ parse.(Int, collect(l)) for l in input ]
+	low = lowpoints(map)
+	return sum(values(low)) + length(low)
+end
+
+
+function search(map, pos)
+	q = [pos]
+	v = [pos]
+
+	while length(q) > 0
+		c = popfirst!(q)
+		h = map[c[1]][c[2]]
+		for p in [ [c[1]+i,c[2]+j] for (i,j) in zip([0,1,0,-1], [1,0,-1,0]) ]
+			if p[1] in 1:length(map) && p[2] in 1:length(map[1])
+				if p ∉ v
+					h2 = map[p[1]][p[2]]
+					if h < h2 < 9
+						push!(v, p)
+						push!(q, p)
+					end
+				end
+			end
+		end
+	end
+	return v
+end
+
+function p2(input::Vector{String})
+	map = [ parse.(Int, collect(l)) for l in input ]
+	low = lowpoints(map)
+	basin_sizes = [ length(search(map, p)) for p in keys(low) ]
+	return prod(sort(basin_sizes)[end-2:end])
+end
+
+@aoc(2021, 9)
Author	SHA1	Message	Date
Patrick Michl	bdfb7e1ff3	add solutions for day 22,23,24 and 25	2021-12-25 06:46:42 +01:00
Patrick Michl	3f9df3ee38	solve day 21	2021-12-21 21:38:12 +01:00
Patrick Michl	028097d209	solutions for day 16, 17, 18 19, 20	2021-12-20 22:12:26 +01:00
Patrick Michl	9b26d17786	solve 14 and 15	2021-12-15 08:35:43 +01:00
Patrick Michl	0ed2beea43	solve day 13	2021-12-13 08:35:12 +01:00
Huanzo	1e43c1d1b2	solve day 12	2021-12-12 07:06:12 +01:00
Huanzo	21ebe11abb	solve day 11	2021-12-11 07:03:27 +01:00
Patrick Michl	7789002a2e	cleanup day 10 a bit	2021-12-10 15:27:27 +01:00
Huanzo	5094014b93	solve day 10	2021-12-10 06:58:20 +01:00
Patrick Michl	1bf812ce9d	solve and cleanup day9	2021-12-09 07:22:03 +01:00
Huanzo	bbd18bcfd0	day 8 p1	2021-12-09 06:52:32 +01:00
Patrick Michl	81abf00d17	puh part2 day 8	2021-12-08 07:42:24 +01:00
Huanzo	812abb8562	day 8 p1	2021-12-08 06:40:56 +01:00
Huanzo	14a148f454	day 7	2021-12-07 06:48:26 +01:00
Patrick Michl	0fc3fcc67b	clean up day 6 and add "precompilation" function that runs part once to precompile the function and then times the compiled result	2021-12-06 07:41:20 +01:00
Patrick Michl	9174bfc690	fix my stupidity and refactor p1 to use generic solution	2021-12-06 07:02:23 +01:00
Huanzo	da41491861	day 6 p1	2021-12-06 06:52:26 +01:00
Huanzo	594bc3f198	day 5	2021-12-05 07:03:33 +01:00
Huanzo	2af544717c	day 4	2021-12-04 08:21:24 +01:00
Patrick Michl	8bfc4fec97	use subsript :D	2021-12-03 10:11:38 +01:00
Patrick Michl	40682f6cb6	optimize day 3	2021-12-03 09:26:46 +01:00
Huanzo	7d2923a6bc	day 3	2021-12-03 07:13:24 +01:00
Huanzo	6e5155d169	solution day 2	2021-12-02 06:26:00 +01:00
				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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