add day 9 and 11

This commit is contained in:
Pim Kunis 2023-12-11 15:04:33 +01:00
parent 71cca82ce0
commit 0e7d2d7c6d
7 changed files with 492 additions and 32 deletions

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12 18 39 90 199 424 889 1853 3829 7788 15539 30516 59516 116587 231569 468274 961829 1992697 4128498 8487217 17211396
6 26 54 89 142 246 466 909 1734 3162 5486 9081 14414 22054 32682 47101 66246 91194 123174 163577 213966
18 17 13 13 40 154 478 1234 2819 5997 12354 25259 51691 105438 212416 419411 808936 1526204 2831565 5207158 9577518
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-8 -18 -34 -44 -28 42 218 616 1498 3435 7618 16422 34395 69984 138601 268195 509504 954848 1771994 3263660 5969098
15 28 48 80 138 258 512 1016 1923 3393 5536 8331 11534 14601 16668 16649 13535 7002 -1536 -7262 522
11 18 25 32 39 46 53 60 67 74 81 88 95 102 109 116 123 130 137 144 151
7 18 39 66 111 226 532 1261 2831 5986 12045 23316 43743 79866 142186 247039 419095 694610 1125571 1784886 2772783
2 4 8 22 68 183 417 835 1535 2710 4824 9055 18297 39223 86207 188300 400968 824944 1635336 3125084 5767986
9 15 25 37 54 92 200 508 1327 3335 7907 17717 37929 78748 161083 329014 676321 1400503 2907865 6009253 12270348
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12 20 37 87 210 468 952 1789 3164 5411 9300 16763 32478 67013 142730 304567 639492 1311358 2622763 5123191 9794178
7 13 22 34 49 67 88 112 139 169 202 238 277 319 364 412 463 517 574 634 697
23 50 87 136 205 314 513 919 1789 3664 7651 15983 33169 68426 140882 290661 602193 1252409 2608614 5423820 11220481
29 44 55 66 89 144 259 470 821 1364 2159 3274 4785 6776 9339 12574 16589 21500 27431 34514 42889
2 -1 -9 -27 -56 -78 -31 226 968 2707 6397 13844 28537 57379 114375 228522 460429 936294 1914726 3912558 7931017
17 31 62 123 231 409 696 1183 2104 4036 8314 17859 38762 83178 174374 355157 701395 1342949 2495070 4504195 7913113
9 21 53 121 262 552 1140 2315 4638 9205 18179 35865 70835 139980 275920 539995 1044151 1986493 3707177 6773737 12107980
4 18 55 129 254 444 713 1075 1544 2134 2859 3733 4770 5984 7389 8999 10828 12890 15199 17769 20614
6 7 6 16 74 248 645 1426 2834 5241 9220 15648 25846 41762 66203 103122 157966 238091 353250 516160 743154
7 13 27 63 139 281 544 1060 2128 4382 9125 19025 39588 82272 171016 355734 739621 1532931 3155655 6427251 12905953
23 26 31 53 115 248 491 891 1503 2390 3623 5281 7451 10228 13715 18023 23271 29586 37103 45965 56323
12 27 42 57 72 87 102 117 132 147 162 177 192 207 222 237 252 267 282 297 312
6 15 41 112 286 674 1469 2987 5741 10604 19188 34689 63636 119238 227339 436388 833511 1570500 2908426 5302545 9580309
13 16 12 9 32 137 446 1228 3067 7177 15954 33928 69471 138092 269240 520918 1011421 1987670 3969448 8046095 16469558
10 11 9 4 -10 -36 -43 100 741 2645 7348 17818 39746 84133 172495 347187 691344 1366147 2678055 5195940 9948506
1 17 44 87 159 291 556 1113 2277 4621 9116 17315 31587 55407 93708 153301 243369 376041 567052 836495 1209671
22 31 52 90 144 206 260 281 234 73 -260 -836 -1740 -3072 -4948 -7501 -10882 -15261 -20828 -27794 -36392
4 4 19 63 150 293 512 863 1511 2885 5978 12915 28077 60497 129253 275786 591649 1279463 2783451 6063189 13158929
1 1 4 25 81 195 417 874 1868 4057 8800 18866 39981 84276 177924 377758 806705 1727855 3696370 7865317 16590231
16 34 74 147 263 431 659 954 1322 1768 2296 2909 3609 4397 5273 6236 7284 8414 9622 10903 12251
20 37 69 122 202 315 467 664 912 1217 1585 2022 2534 3127 3807 4580 5452 6429 7517 8722 10050
5 26 63 134 271 526 989 1834 3435 6632 13278 27272 56400 115496 231740 453391 864005 1605366 2914217 5180830 9042145
9 16 29 47 77 153 359 851 1873 3762 6937 11867 19013 28739 41187 56111 72665 89140 102645 108727 100925
10 32 74 155 314 617 1175 2188 4039 7490 14092 27037 52896 105076 210502 422145 841788 1660128 3225306 6156675 11528586
19 23 29 46 88 179 372 792 1713 3679 7679 15386 29470 53995 94910 160644 262815 417063 644017 970406 1430324
5 18 44 92 186 373 739 1451 2868 5812 12176 26184 56828 122340 258145 530879 1063323 2079530 3987708 7533220 14079322
18 36 83 180 369 729 1390 2557 4584 8178 14875 28036 54795 109698 221256 443356 874494 1689172 3187587 5871968 10560597
9 8 11 29 94 269 660 1431 2827 5232 9337 16578 30162 57342 114424 237964 510133 1115940 2469615 5484891 12131926
4 26 63 115 182 264 361 473 600 742 899 1071 1258 1460 1677 1909 2156 2418 2695 2987 3294
21 32 47 66 89 116 147 182 221 264 311 362 417 476 539 606 677 752 831 914 1001
8 31 68 135 270 552 1125 2217 4139 7259 11985 18884 29269 47026 83358 167882 372738 861959 1987586 4468637 9711368
20 31 57 114 228 451 882 1699 3221 6044 11349 21598 42073 84156 172012 355589 734834 1503109 3022529 5951162 11452946
11 15 19 23 27 31 35 39 43 47 51 55 59 63 67 71 75 79 83 87 91
14 22 32 43 69 149 353 795 1677 3405 6851 13920 28793 60700 130112 282392 617355 1352152 2952932 6406510 13772894
2 8 18 34 60 113 242 554 1258 2757 5852 12192 25244 52314 108584 224814 461378 932758 1848622 3580286 6764844
25 49 99 202 411 815 1554 2861 5171 9357 17172 31993 59997 112022 206751 376841 681781 1235517 2264585 4225568 8031767
27 51 80 122 193 308 482 753 1244 2304 4815 10828 24804 55901 121991 256453 519329 1015233 1921578 3532374 6325227
9 16 23 30 37 44 51 58 65 72 79 86 93 100 107 114 121 128 135 142 149
5 19 57 136 279 527 979 1871 3704 7442 14836 29004 55528 104538 194564 359377 659639 1201973 2169083 3865840 6787845
29 56 109 215 429 849 1631 3004 5285 8894 14369 22381 33749 49455 70659 98714 135181 181844 240725 314099 404509
12 22 43 85 159 273 428 614 806 960 1009 859 385 -573 -2214 -4780 -8560 -13894 -21177 -30863 -43469
13 31 68 128 213 322 460 661 1019 1701 2896 4672 6854 9455 15134 36958 117818 372651 1071743 2793982 6695916
8 13 22 32 41 43 18 -83 -358 -979 -2222 -4502 -8413 -14773 -24674 -39537 -61172 -91843 -134338 -192044 -269027
11 12 9 -1 -20 -44 -52 25 380 1487 4386 11154 25631 54481 108679 205526 371305 644702 1081127 1758081 2781726
19 47 89 145 218 321 500 893 1857 4215 9706 21765 46826 96462 190938 365345 680788 1245864 2259296 4095678 7477459
-4 -7 -10 -12 1 85 389 1235 3232 7433 15558 30327 55975 99078 169982 285600 475624 797452 1372918 2477577 4751361
13 31 59 88 109 133 231 600 1662 4204 9568 19901 38476 70096 121594 202443 325491 507837 771865 1146454 1668383
14 24 44 91 202 442 913 1764 3212 5606 9603 16580 29482 54406 103348 198697 380250 715748 1316198 2357553 4110674
10 12 22 40 74 146 289 530 854 1144 1092 76 -3002 -9922 -23401 -47402 -87502 -151324 -249038 -393936 -603086
4 4 20 62 149 316 626 1212 2384 4837 9979 20344 39929 74052 127948 202873 288279 349472 313887 69354 -488752
-6 -15 -22 -20 11 117 384 953 2036 3933 7050 11918 19213 29777 44640 65043 92462 128633 175578 235632 311471
19 47 102 206 403 783 1522 2954 5714 11038 21395 41779 82229 162487 320133 623962 1194545 2233309 4059052 7144760 12134891
26 39 54 86 161 321 651 1349 2874 6235 13544 29088 61461 127903 263247 538395 1098130 2237175 4549698 9215482 18532449
15 18 17 21 53 161 440 1069 2377 4969 9963 19424 37172 70380 132953 252957 489034 966028 1950110 4002213 8281814
5 7 5 -1 -11 -25 -43 -65 -91 -121 -155 -193 -235 -281 -331 -385 -443 -505 -571 -641 -715
12 19 26 33 40 47 54 61 68 75 82 89 96 103 110 117 124 131 138 145 152
2 6 22 58 122 222 366 562 818 1142 1542 2026 2602 3278 4062 4962 5986 7142 8438 9882 11482
-5 -7 -13 -32 -80 -178 -347 -601 -939 -1324 -1584 -1028 2744 16985 61237 183615 494629 1234977 2908251 6536470 14145702
-5 -8 -8 -4 6 44 197 711 2178 5893 14520 33329 72509 151541 307557 611434 1198786 2329137 4497031 8636027 16483917
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42
-6 -3 8 43 130 317 700 1494 3193 6899 14945 31993 66855 135363 264703 499728 911876 1611441 2764078 4612567 7505016
13 19 40 101 241 513 984 1735 2861 4471 6688 9649 13505 18421 24576 32163 41389 52475 65656 81181 99313
12 25 52 103 205 419 881 1894 4112 8871 18736 38347 75661 143701 262937 464438 793948 1317053 2125620 3345703 5147125

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@ -0,0 +1,3 @@
0 3 6 9 12 15
1 3 6 10 15 21
10 13 16 21 30 45

View file

@ -0,0 +1,74 @@
defmodule AOC.Day11 do
use AOC.Day, day: 11
def parse_input(lines) do
Enum.map(lines, &String.to_charlist/1)
end
def part1(image), do: calculate_distance_sum(image, 2)
def part2(image), do: calculate_distance_sum(image, 1_000_000)
def calculate_distance_sum(image, scaler) do
empty_space = find_empty_space(image)
find_galaxy_positions(image)
|> expand_galaxy_positions(empty_space, scaler)
|> calculate_shortest_paths()
|> Enum.sum()
end
def find_empty_space(image) do
empty_rows = find_empty_rows(image)
empty_columns =
image
|> List.zip()
|> Enum.map(&Tuple.to_list/1)
|> find_empty_rows()
{empty_rows, empty_columns}
end
def find_empty_rows(image) do
image
|> Enum.with_index()
|> Enum.filter(fn {row, _} -> Enum.all?(row, &(&1 == ?.)) end)
|> Enum.map(&elem(&1, 1))
end
def find_galaxy_positions(image) do
image
|> Enum.map(fn row ->
row
|> Enum.with_index()
|> Enum.filter(fn {space, _} -> space == ?# end)
|> Enum.map(&elem(&1, 1))
end)
|> Enum.with_index()
|> Enum.flat_map(fn {xs, y} ->
Enum.map(xs, &{y, &1})
end)
end
def expand_galaxy_positions(galaxy_positions, {empty_rows, empty_columns}, scaler) do
Enum.map(galaxy_positions, fn {y, x} ->
shift_y = Enum.count(empty_rows, &(&1 < y))
shift_x = Enum.count(empty_columns, &(&1 < x))
{y + shift_y * (scaler - 1), x + shift_x * (scaler - 1)}
end)
end
def calculate_shortest_paths(galaxy_positions) do
for g1 <- galaxy_positions, g2 <- galaxy_positions do
[g1, g2]
end
|> Enum.reject(fn [g1, g2] -> g1 == g2 end)
|> Enum.map(&Enum.sort/1)
|> Enum.uniq()
|> Enum.map(fn [{y1, x1}, {y2, x2}] ->
abs(y1 - y2) + abs(x1 - x2)
end)
end
end

View file

@ -1,7 +1,4 @@
defmodule AOC.Day8 do
# use AOC.Day, day: 8, input: "example1"
# use AOC.Day, day: 8, input: "example2"
# use AOC.Day, day: 8, input: "example3"
use AOC.Day, day: 8
@start "AAA"
@ -25,6 +22,20 @@ defmodule AOC.Day8 do
{instructions, nodes}
end
def part1({instructions, nodes}) do
reach_end(instructions, nodes)
end
def part2({instructions, nodes}) do
IO.puts("Use LCM calculator for the following numbers :)")
Enum.filter(nodes, fn {k, _v} -> String.ends_with?(k, "A") end)
|> Enum.map(fn {k, _v} -> find_cycle(instructions, nodes, k) end)
|> Enum.map(&elem(&1, 0))
|> Enum.map(&Integer.to_string/1)
|> Enum.join(" ")
end
def reach_end(instructions, nodes) do
Enum.reduce_while(instructions, {@start, 0}, fn instruction, {current_node, step_count} ->
if current_node == @stop do
@ -43,10 +54,6 @@ defmodule AOC.Day8 do
end)
end
def part1({instructions, nodes}) do
reach_end(instructions, nodes)
end
def find_cycle(instructions, nodes, start) do
Enum.reduce_while(instructions, {start, 0, nil}, fn instruction,
{current_node, step_count, last_end_count} ->
@ -68,29 +75,4 @@ defmodule AOC.Day8 do
end
end)
end
def brute_force_find_cycle(cycles) do
Stream.repeatedly(fn -> nil end)
|> Enum.reduce_while(cycles, fn _, cycles ->
all_ended = cycles |> Enum.map(&elem(&1, 0)) |> Enum.uniq() |> length() == 1
if all_ended do
{:halt, cycles |> hd() |> elem(0)}
else
[{count, cycle_count} | tl] = Enum.sort(cycles)
IO.inspect(count)
{:cont, [{count + cycle_count, cycle_count} | tl]}
end
end)
end
def part2({instructions, nodes}) do
IO.puts("Use LCM for the following numbers :)")
Enum.filter(nodes, fn {k, _v} -> String.ends_with?(k, "A") end)
|> Enum.map(fn {k, _v} -> find_cycle(instructions, nodes, k) end)
|> Enum.map(&elem(&1, 0))
|> Enum.map(&Integer.to_string/1)
|> Enum.join(" ")
end
end

View file

@ -0,0 +1,51 @@
defmodule AOC.Day9 do
use AOC.Day, day: 9
def parse_input(lines) do
Enum.map(lines, fn line ->
line
|> String.split(" ")
|> Enum.map(&String.to_integer/1)
end)
end
def part1(histories) do
histories
|> Enum.map(&predict_next_value/1)
|> Enum.sum()
end
def part2(histories) do
Enum.map(histories, &predict_previous_value/1)
|> Enum.sum()
end
def predict_next_value(history) do
history
|> generate_differences()
|> Enum.map(&List.last/1)
|> Enum.sum()
end
def predict_previous_value(history) do
history
|> generate_differences()
|> Enum.map(&List.first/1)
|> Enum.reduce(&Kernel.-/2)
end
def generate_differences(history), do: generate_differences(history, [history])
def generate_differences(numbers, acc) do
if Enum.all?(numbers, &(&1 == 0)) do
acc
else
differences =
numbers
|> Enum.chunk_every(2, 1, :discard)
|> Enum.map(fn [val1, val2] -> val2 - val1 end)
generate_differences(differences, [differences | acc])
end
end
end