Move 2020 solutions to LiveBook

2020/1/input.txt

···
-1706
-1466
-1427
-1744
-1684
-1386
-2001
-1750
-1753
-1770
-1559
-1616
-1408
-1860
-1940
-2002
-1862
-1918
-1456
-1209
-1840
-1462
-1783
-1644
-1901
-1791
-1506
-2005
-1338
-1383
-1420
-1631
-1784
-1897
-1771
-1588
-1955
-1937
-1392
-1396
-1803
-1429
-1407
-1698
-1562
-1913
-1678
-1198
-1398
-1703
-1831
-1489
-1782
-1864
-1708
-1397
-1915
-1953
-1395
-1610
-1549
-1564
-1973
-1931
-2009
-1980
-1800
-1443
-1993
-1900
-1964
-1581
-1904
-1665
-1567
-1057
-1805
-1402
-1878
-1729
-1825
-1682
-1719
-1469
-1004
-1591
-1594
-811
-1523
-1424
-1756
-373
-1442
-1718
-1411
-1892
-1820
-1977
-1871
-1890
-1653
-1372
-1475
-1476
-1422
-2004
-1755
-1676
-639
-1425
-1853
-1712
-1525
-1514
-1455
-1658
-1963
-1579
-1861
-1458
-1474
-1613
-1681
-1586
-1441
-1499
-1865
-1735
-1989
-1952
-792
-1669
-1509
-1481
-1893
-1445
-1834
-1779
-1732
-1826
-1595
-1829
-449
-1920
-1707
-1780
-1935
-1867
-1769
-1107
-919
-1382
-1604
-1875
-1453
-1496
-1946
-1659
-1570
-1692
-1630
-1638
-1922
-1691
-1580
-1880
-1482
-1762
-1775
-1376
-1434
-1856
-1971
-1646
-1951
-1416
-1889
-1773
-1814
-1471
-1488
-1736
-1743
-1459
-1389
-1498
-1663
-1611
-1727
-1699
-1624
-1511
-1767
-1754
-1785
-1491
-1235
-1510
-1500
-1485

2020/1/solution.exs

···
-defmodule Solution do
-  def load(path) do
-    path
-    |> File.stream!()
-    |> Stream.map(&String.to_integer(String.trim(&1)))
-    |> Enum.to_list()
-  end
-
-  def run([], _, _), do: nil
-  def run(_, _, sum) when sum < 0, do: nil
-  def run([a | _], 1, a), do: [a]
-
-  def run([a | rest], n, sum) do
-    case run(rest, n - 1, sum - a) do
-      nil -> run(rest, n, sum)
-      nums when is_list(nums) -> [a | nums]
-    end
-  end
-end
-
-list = Solution.load("./1/input.txt")
-
-list
-|> Solution.run(2, 2020)
-|> Enum.reduce(&*/2)
-|> IO.inspect(label: "task 1")
-
-list
-|> Solution.run(3, 2020)
-|> Enum.reduce(&*/2)
-|> IO.inspect(label: "task 2")
-
-Benchee.run(%{
-  "first solution" => fn ->
-    try do
-      for x <- list, y <- list, z <- list, x + y + z == 2020 do
-        throw(x * y * z)
-      end
-
-      :error
-    catch
-      num -> {:ok, num}
-    end
-  end,
-  "optimized" => fn ->
-    try do
-      for x <- list,
-          rest = 2020 - x,
-          y <- list,
-          y < rest,
-          rest = 2020 - x - y,
-          z <- list,
-          z <= rest,
-          x + y + z == 2020,
-          do: throw(x * y * z)
-
-      :error
-    catch
-      num -> {:ok, num}
-    end
-  end,
-  "mine" => fn ->
-    Solution.run(list, 3, 2020)
-  end
-})

2020/2/input.txt

···
-5-10 b: bhbjlkbbbbbbb
-3-4 j: hjvj
-8-9 p: pmljtsttp
-3-4 t: hvtttqhdjmmnbqwbgfs
-4-6 m: mblwtzmvmdjkkmmtsckm
-6-9 f: ffffftfff
-1-3 g: xggg
-3-10 k: rwkhttkxxdpnlkq
-3-11 w: wwmwwwwwwwww
-5-7 f: fffffffff
-1-4 l: lglllbc
-2-5 n: njnnn
-6-8 t: tcjtltttttdttjttbt
-10-20 d: djddddccdbdddddddndd
-2-5 z: gzppzhrhzdthnpcr
-13-14 p: plvppptppppzppbkpk
-11-13 t: jjtjvzfhsrtsmkdhj
-11-12 r: rtrdvrrxrrxrzr
-2-6 x: dxsvxgvk
-7-11 x: hcxxpvxrnmxckkq
-12-17 s: sssssssssssrssssss
-2-4 v: vvpvvvjvvjvvqbvv
-15-18 h: thqhhhgjjqhhnhhznz
-8-11 j: jbmgbtmjtbb
-2-4 d: xxdfvp
-2-7 p: fftlppz
-9-13 d: dfddddddsdddds
-5-7 d: ddddddz
-2-3 h: hfbhhh
-1-4 k: rmkvkkkk
-16-17 w: wwwhwwwwwwwwwwwwq
-5-8 l: gllxllnlqlglrplk
-1-7 p: mhnpspp
-5-13 f: qhwffbtfzmdffztfjs
-2-8 f: fkjhvcbflbwhggtbbcb
-2-3 m: bcmldxmdh
-6-7 p: ppcpppw
-3-10 m: mmmmmmmmmj
-4-12 s: ssjssssssssmsss
-2-5 j: rmjnjtjjjj
-2-3 q: qqdqq
-10-15 v: vvvvvvvvvvvvvvdvvvvv
-1-4 w: wwwc
-4-14 m: mmsmmmvmmmmmqqmmmmm
-7-10 d: ddcdddzdddddd
-4-5 h: hhhhh
-9-17 p: ppppppppqppppppppp
-6-7 m: mqtmnms
-4-5 s: pssss
-2-6 t: tdttttpwttt
-7-8 l: llsxsllzlwl
-7-10 f: fflffffkqffffm
-3-4 f: cdfp
-3-4 z: zzzz
-6-7 s: sbssdvs
-3-4 g: ggdv
-11-16 l: lllllnbsqlfzwrfljkh
-3-4 k: tqkxxfk
-3-17 s: xshmvlmzrjdpnvlssn
-1-16 l: lzzvllgktckllmlltl
-5-6 l: qlltvl
-6-7 p: npvbpcp
-4-6 g: gmgvgn
-12-13 r: rrnlrrwrtvrrrrcrrrv
-11-12 h: hhvxhhhhwjhd
-13-14 p: pdppcsjtppppppvtwpj
-10-14 l: hljjkjxlfwzlllclzq
-18-19 z: zzzzzzzzzzzzzzztzhn
-11-12 p: hpspwrkqbnpp
-16-18 h: hhhhhhghhhhhhhhwhbh
-1-2 p: vpxnqqbgrxprmh
-13-19 m: mmmmmmmmmmmmqmmmmqm
-1-2 n: ncndsnl
-9-10 x: xxxxxxxxxgxxd
-9-12 w: wwwwwwwwwwzwwdfgwwp
-3-5 h: nqhvhzb
-4-5 j: jjjns
-10-12 f: ffffffffffff
-7-10 v: mgvrwvvsjw
-3-5 m: wpmmm
-3-10 s: ffsbvjdslsnshqs
-9-10 z: mgzzbjzqsz
-3-13 d: ddjdddddddddnd
-2-4 l: tqkfhpwvvmc
-1-3 z: zzzzzn
-3-5 l: ctljlckdpnlchrzbc
-6-7 v: hqvcvvv
-11-13 v: vvvvcvvvvvvvvvv
-8-9 t: ztndmlwdb
-5-6 v: fdxxrvwpw
-1-4 n: xnkb
-16-17 v: vvvvvvvvvvvvvvvvnvv
-12-14 b: bbbbbxbbbdbgbcb
-1-7 w: wwwwwwrwwjtwk
-3-10 d: bxnhbhrmgd
-4-5 k: kkknkk
-2-4 n: bndln
-3-10 p: vpkppcppppcplpksp
-9-10 d: fhbzbdzqsdxlhnbt
-11-13 z: zzmzzzzwzpzzz
-12-17 b: hkbcbbhthbrbbdgbl
-11-13 c: cpccnxccxbjtm
-5-6 n: nnrmnfnsnn
-3-8 l: sslkllwljcgl
-1-9 p: fpppzzpppppphtrhppp
-4-11 h: kskbvrqhdjph
-3-9 r: rsrvxnrchtrrrr
-4-5 n: nwbln
-3-4 g: gjgv
-13-14 r: rrrrrrsrtrrrrrrrr
-10-15 m: mmmmmmmmmtmmgmm
-5-6 k: wkpkkqk
-10-11 l: wlbllglkbltblrqlllm
-6-7 d: ddddsrddd
-17-18 v: vvvvvvvvvvvfvgvvsvv
-6-10 n: nngnnnnvnknn
-7-8 t: qdztnrnt
-5-11 d: dfbdxqbmsdd
-1-6 n: znnvqdnx
-7-9 k: kkkkkkkkl
-5-6 m: mmmszmtmmks
-1-5 l: wlllllll
-13-14 m: mcmmmmmlmmmmjmmm
-1-7 k: kklkjvckb
-14-15 d: ddddmddddmddddddd
-18-19 k: kfkkkkkkkkkkkkkkkpkk
-3-4 z: czjzc
-17-18 t: btttttjmltrttxctgt
-1-4 c: cccscqcccc
-9-14 k: tcwcstszkvhjfmrqpkp
-3-8 c: ccccccjcscncp
-10-11 d: dddddddddmdd
-3-5 m: rgmfmkmd
-1-5 k: mfhnk
-4-5 x: cwnxftlt
-1-3 n: flnqmnnhnn
-2-5 f: vwlcnsfd
-4-8 c: cccccccbc
-10-12 v: dhfvlvbvspjldzch
-7-16 f: ffsmffffjffqfpffff
-10-13 n: njtrrnnqntjtn
-13-17 f: frffcfffrjffffdfpff
-5-10 m: mmmmvfmmmmmmmmdm
-5-6 v: vvvvvzvvvvv
-6-12 r: dqrrcrhrhjsrrr
-8-14 z: zzzzzzzlzzzgzsz
-5-9 q: qkwzsvwdg
-12-13 d: vzjfvddgctfdrr
-6-7 f: mgndffb
-2-5 x: nxxmx
-7-9 c: cmxsccccf
-1-7 n: nnnnnnnnnn
-6-8 g: gggglfgp
-2-13 v: kvwxcrfmpfcfdrgv
-5-7 p: tpplpffpccpp
-8-12 m: mmmmmmmmmmmxm
-9-10 v: vvvvvvvvvcv
-4-5 m: mbnmmkknmmwshmkthj
-8-9 t: cltntrtpqwtcsftttf
-8-16 f: ffffrffpffffffffff
-6-8 t: sttcctttdttdwjdndtt
-5-9 k: ckkkkvdkvkk
-1-3 f: ffczfpgmf
-2-4 w: wwlwwd
-1-9 d: lddbhdddmtfdmdzdrdhd
-16-17 h: xfqlbhhpbnclvztzzzx
-2-7 r: rrbntqrrsrkrm
-1-4 r: qwrr
-12-14 b: tvbbzjbbbbbbbn
-5-7 h: hhjvghth
-2-3 d: dndrcx
-8-9 c: ccccscccpc
-5-8 s: srcsszcsp
-13-15 g: gggggggglggggglggggg
-11-13 b: bbbbbfrbfbbgbb
-1-8 b: jbbkqbbbpbbbbbbp
-11-14 n: nnnnnnnnnnmnnnn
-1-4 g: qsggg
-14-15 l: sllslllggllljkdlm
-1-5 s: pvssbspdsshsssssrs
-7-10 c: ccccccmcpgcc
-6-14 m: bcfkpmvmcmmjml
-1-3 n: ncnnnnn
-12-14 j: bjfjxjjpjrjjjxjjk
-10-12 v: vfvvvvvvqjvvvwvwt
-6-13 d: stddxdnjrddhwgdhrfjf
-5-6 w: qcwhnwwk
-2-3 x: mcxfxckptzvw
-12-20 b: lvgvbxsxxlvbhfcxbtzr
-1-2 d: ddbdqd
-5-10 h: mhtnjvhhhs
-2-6 z: ztzzdxzzzqbvg
-2-7 t: ttjkqztr
-3-4 g: bgvggrxrhtlklfj
-4-5 q: qqqvq
-1-3 c: ccpc
-4-6 j: jjrdjj
-8-11 c: ncvshccccccsb
-1-2 z: rzzqxczxbkpvgkxfzgvz
-10-11 f: kffsffffbqf
-18-19 v: vmvvvvvvvvvvvvvvvql
-14-15 m: mmmmmmmmmnmmmpmm
-12-17 z: zzzzzzzzczzdlzzzzz
-4-6 g: zggggg
-12-16 h: hhhfhhrnnkhhmhhtqvh
-3-4 n: hxssbnn
-6-9 m: mmmmmmmmdmmm
-5-6 n: nnwtgn
-6-10 c: lppbvxcmjc
-7-8 d: dpddzddvdzdddzfddd
-1-5 z: xlzmzzz
-6-11 h: hjhhhphhhhf
-1-9 h: hhdghtsmmjhhnnwz
-6-9 t: ctldsstttstrz
-3-4 t: qvktfwnjcjtqtjqtn
-6-7 w: wwwwwwsww
-11-12 m: nphmmmpmmmcm
-8-9 p: ppppdppdp
-12-13 l: cllzzglllbqlll
-2-7 s: sslssssgbssbsssnss
-6-14 j: jvjrxjjrlgvjzmgj
-7-8 p: hxpnjvzqxm
-2-10 g: xgzfgvdsxr
-4-5 t: lttttxdtp
-3-12 c: kkpckmphqfcc
-4-7 v: rbsjcpvwgtfjpv
-2-4 k: swqfkb
-5-9 n: knfdnnnnn
-12-14 t: zgwthtdtrxvvftst
-3-5 v: vlvqtv
-15-19 t: fqwkwbtjdqncnsmnqxr
-3-8 c: mxccchksq
-3-5 v: jtpvr
-5-7 k: kbkkkshkkkzkkkt
-8-9 z: zzzzzzzzzzz
-6-13 k: kkkkkkkkkkkktkkk
-5-7 c: mccchbwc
-7-12 x: gxxxxlgmztwsxxxgj
-3-12 b: ndsbdfdgvxtbmrqcrjhs
-1-3 d: qxdtdt
-3-7 b: qbbdbgb
-12-15 p: ppmplpptppwppppg
-7-8 r: rjrrrrrz
-8-10 p: cppppgspsxpvp
-1-5 w: wwwpwf
-4-8 p: nhqlknppmpplb
-1-6 c: cvccccrc
-7-8 c: cccccctccccccc
-4-12 x: jxrxtnxrxxvsx
-9-15 g: jfgxnznpwhccdggnm
-2-6 h: jphhphlvhgqbwnl
-8-9 f: dfftbfxsxxqfdvlfs
-1-12 t: dtttttttttttttt
-3-7 h: hshhmhh
-3-4 w: wwwj
-5-6 z: zzzzzp
-8-12 m: jmnwmtjmnqvrj
-4-5 f: ffffvff
-8-10 l: llllflllxll
-4-8 x: zcvxtxxkm
-13-15 p: pppppkppppbpppsp
-3-6 h: hhhhphlhhghkt
-2-13 t: tcttttjtttttltttttt
-9-10 b: bbbbbbbbvb
-7-8 w: fwbwwwqw
-6-9 s: jssssssssssssssssw
-13-17 p: pppppppppppppppppp
-5-7 q: lqxcqqqqcmgtbqjrqmjg
-4-17 t: tttpfttttjttttttvt
-13-14 c: cccccccccccccj
-1-2 p: pxrpqpmpp
-3-8 l: rnlxbwwzjdsh
-2-7 w: kwkghnsfcp
-9-11 m: mmdrktmzmrzhmgdmg
-8-11 z: wzxwzzbfznc
-5-7 t: rtbtntt
-2-3 v: nqvv
-2-3 r: krrwb
-10-11 q: qqqqlqqvqqqqqq
-3-5 r: drrhh
-7-9 f: ffffffffhv
-4-13 m: rkmmbjnsjzjcmwmwk
-15-17 s: jrrvwtnklssqshzpss
-12-13 z: fczzpzzzzzzkl
-10-12 z: jshkxzzzrdzj
-6-13 k: kkkkkkkkkkfkgkkkkkk
-14-15 w: wcjjlzkpbspcwcw
-2-5 n: npnnznk
-5-15 b: cgqlmxzqmvqzbvb
-13-15 r: rrrprrrrrrrrlrr
-5-6 z: pgfzxw
-4-17 x: xlgxwsxjxdxxhqhtcj
-11-16 z: zzjhzzlzrzkzwzlzz
-7-8 b: tltbbrbbbkb
-2-14 k: pnkkqfxkkqkkmkkdkjkk
-1-3 f: hjmvjfxvxtgh
-6-8 w: xgrvwwswwxg
-16-18 v: vwvvvvvvvvkvvmvvvtv
-3-10 w: wwwwwwwwwwwww
-2-4 w: zcwwqwtdwj
-3-7 r: ttrrnwszwqsp
-1-7 m: mjjqlgm
-12-15 x: xxxxxxxxxxxlxxnxx
-3-6 z: zzzzzjz
-8-9 s: sssssssvs
-5-7 w: wlwswwd
-17-18 z: zzzdzzzzzzzzzzzzzx
-5-7 j: dchcjfj
-2-5 k: cqpkn
-8-10 x: xxxnxxxxxtx
-1-5 t: tttttttt
-5-6 k: lkkphk
-11-13 c: scdtdcghdmcttcc
-2-5 h: hhhhhh
-4-6 r: clrrrr
-2-13 s: szsssssssssssssv
-3-11 x: krxmwcznvwrlcx
-7-8 m: cmmttmbm
-3-4 c: pdwccbxwfvhcgrx
-5-8 p: ppppvppq
-12-19 l: llfllrllmwlmlllllll
-11-15 p: psplppzglptmppp
-6-14 m: mmvmmgmmmpmmmxm
-5-6 j: jjctdzj
-9-10 k: xnkzkkpplpkkkkk
-10-14 t: crsttgdtzgfqtx
-6-7 j: jbkpsjjjsrzf
-1-4 v: vsvvvvm
-4-5 f: lhbnfgqmbfltqrxzzx
-12-13 q: qrjkxcwqqkdjmsxfnqmf
-18-19 q: qqpqqxzqjnqqbhqkqqv
-16-20 m: nzbmqjwbmmmnhmlmszbf
-5-9 k: kkkkxskkkkk
-1-2 x: txhxx
-9-12 s: sssssssssssr
-3-4 s: qsssssh
-19-20 f: mfffmpfhhffwrlkffvff
-3-15 b: bbpbbbbbbbbbbbbbb
-8-9 h: fbcjphblh
-6-9 p: ppppbnpppfppw
-6-20 n: nsxzcgbcgqvjwfrgtnsr
-5-7 s: cssdjdssr
-3-4 g: gggwgg
-1-6 s: hsspsss
-2-5 z: zlgzb
-5-8 l: jsljljtlpqhjl
-3-10 n: mznwwnvhgbg
-2-3 c: cckcc
-1-10 r: rrpcbdrrrr
-16-17 q: kqjxngwrpqlsqklnq
-2-4 n: mnmnn
-8-9 n: nnnnnnnsrnl
-2-4 r: qrhlrvwpqsvktzcqms
-6-9 v: vbqlvvvhqvqpv
-2-8 b: kngrzdbb
-10-13 d: dddddddddwdddd
-2-6 z: czkzhzqdffh
-8-19 n: kngnjnftdsrnhsnmznn
-8-10 m: rngxfjlmmvtctp
-16-17 k: dlkkxxkkkczkkkkkvs
-3-17 n: wllsknnzckmmsjmqnxc
-11-12 h: csrhwxwdnkhh
-3-7 g: ggggggngg
-1-14 s: sssssssssssssssdl
-8-16 m: mmmmmmmkmmmmmmmpm
-8-9 b: kdbqtknpncbbffd
-14-15 z: zjzzszcgnzczszg
-12-16 g: jdvgrmdczssgtwsq
-2-6 n: lwlklnfxlhwdkn
-1-5 c: bnfbdzc
-14-15 b: bbbbbbbbjbbbbtb
-2-5 v: vnvvvvv
-14-17 s: ssssszssssssssshmsss
-7-9 h: fhmhjkcrhbl
-11-15 g: fwhjldbbprhngcjg
-9-15 m: mdcbhmmjlmfmmtmcmm
-10-13 j: jjjjsjjjjlwjsjjl
-1-5 s: dsssssssssssssssss
-5-15 r: rrxprrrrrrrzvhrrrrr
-5-7 b: svnbkbb
-2-4 w: kwwqws
-13-20 q: slgmkqmkvlqqwjfdhqdq
-8-12 l: llllllljlllkll
-9-20 c: cccccccccccccccccccc
-5-6 n: wlcnnh
-1-4 w: lzwwv
-8-9 h: hhphhhhhhhdhh
-8-10 t: mnsnktzgrn
-11-16 v: bjvcvfrkgkvzvvvxb
-11-18 v: vvvvvvvvvvvvvvvvvxvv
-11-14 l: llllkllllrlqll
-5-11 q: zwlqcqqnnqq
-5-11 p: pftpphptptphtskqp
-4-12 p: pvpwpzppppppppdk
-2-4 h: hhhqhh
-6-12 l: jznsrcnxkllz
-13-15 j: vdjkhxjptxzfjjm
-4-5 t: vzhft
-7-10 m: bmrmztmwxmms
-5-7 h: hswmtbhcb
-13-17 f: vmhffvvfjtffpllftff
-11-16 w: wqntqwmzcwwvhwwsxwlh
-2-4 r: wrbb
-2-10 b: bbbbbbbbbb
-1-11 m: mmmmmmmmmmmmmmmmmmhm
-13-14 r: rrrrrrrrrrrrrwrrrr
-3-6 n: vnsprwznfn
-3-4 v: vvvz
-2-11 p: ppxjqmffgtp
-7-10 s: sslmsssssss
-10-11 j: jjlsjjjjjfjjj
-4-7 b: fbbhggbcmr
-12-13 s: sssssssssssgxs
-8-10 l: lpllllhlcnlllxl
-3-4 l: ljxlml
-2-14 f: ffffffwfffzfcnfffwrf
-7-10 h: kwdcfptcchhhhhgz
-2-9 j: jjjjjsmjzjqjjj
-4-13 w: wwcwwwmrwwwgqwr
-3-5 t: ttmtttt
-5-13 d: whpdqwpvkzsxdmgtnz
-13-14 x: xxtbcxxxwxxxxx
-1-7 t: ttttttdthtttttttt
-6-15 x: pxfnxbnmpxgmwzxkv
-2-11 m: kmcmjlddbwm
-9-14 d: dddddddddddddldd
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-2-8 v: jvvvvvvjv
-13-14 q: qqjqqqfjqqqqqz
-5-12 d: pllddwcgctfbkfx
-17-18 f: ffffffffffffffffmjff
-7-17 w: sqmbczwtwpwkhngtw
-15-17 l: lllllllllllzllplllll
-5-8 c: cccqfccccccc
-8-14 k: xnjcftlkvhkmkr
-4-5 q: qqqqqj
-8-11 m: wzxcmwgmmvmgq
-11-15 h: hnhtnhnhhkghhzhh
-11-13 g: rgdgqgvmqjggg
-8-13 v: mtjkbnvvvhvvv
-4-5 v: vcvhv
-5-12 w: fqvwnzcwlntwpcwf
-1-15 j: jjjjjjjzjjjjspwj
-2-4 x: jmrxxkpncwdcftw
-1-2 b: gbbqbf
-8-11 k: kxkkkkzpkkzkkm
-1-4 v: mpqp
-6-7 p: lxdptfp
-3-4 s: sxss
-16-18 d: gxzglqmddffqxqvppr
-4-6 f: fffmfff
-13-16 m: zfmcnzxfvmcmqmhcctv
-1-8 n: nnnnnnnm
-8-9 v: vvvvvvvvvg

2020/2/solution.exs

···
-defmodule Solution do
-  def read(path) do
-    path
-    |> File.stream!()
-    |> Enum.map(&String.trim/1)
-    |> Enum.map(&parse/1)
-  end
-
-  defp parse(input) do
-    [spec, pass] = String.split(input, ": ", parts: 2)
-    [range, <<char>>] = String.split(spec, " ", parts: 2)
-    [min, max] =
-      range
-      |> String.split("-", parts: 2)
-      |> Enum.map(&String.to_integer/1)
-
-    {min..max, char, pass}
-  end
-
-  def validate_1({range, char, pass}) do
-    count = for <<^char <- pass>>, reduce: 0, do: (n -> n + 1)
-
-    count in range
-  end
-
-  def validate_2({a..b, char, pass}) do
-    <<char_1>> = binary_part(pass, a - 1, 1)
-    <<char_2>> = binary_part(pass, b - 1, 1)
-
-    char_1 != char_2 and char in [char_1, char_2]
-  end
-end
-
-data = Solution.read("2/input.txt")
-
-IO.inspect(Enum.count(data, &Solution.validate_1/1), label: "task 1")
-IO.inspect(Enum.count(data, &Solution.validate_2/1), label: "task 2")

2020/day01.livemd

···
+<!-- livebook:{"persist_outputs":true} -->
+
+# Day 01
+
+```elixir
+Mix.install([:kino_aoc])
+```
+
+## Section
+
+<!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjAifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->
+
+```elixir
+{:ok, puzzle_input} =
+  KinoAOC.download_puzzle("2020", "1", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+{:ok,
+ "1706\n1466\n1427\n1744\n1684\n1386\n2001\n1750\n1753\n1770\n1559\n1616\n1408\n1860\n1940\n2002\n1862\n1918\n1456\n1209\n1840\n1462\n1783\n1644\n1901\n1791\n1506\n2005\n1338\n1383\n1420\n1631\n1784\n1897\n1771\n1588\n1955\n1937\n1392\n1396\n1803\n1429\n1407\n1698\n1562\n1913\n1678\n1198\n1398\n1703\n1831\n1489\n1782\n1864\n1708\n1397\n1915\n1953\n1395\n1610\n1549\n1564\n1973\n1931\n2009\n1980\n1800\n1443\n1993\n1900\n1964\n1581\n1904\n1665\n1567\n1057\n1805\n1402\n1878\n1729\n1825\n1682\n1719\n1469\n1004\n1591\n1594\n811\n1523\n1424\n1756\n373\n1442\n1718\n1411\n1892\n1820\n1977\n1871\n1890\n1653\n1372\n1475\n1476\n1422\n2004\n1755\n1676\n639\n1425\n1853\n1712\n1525\n1514\n1455\n1658\n1963\n1579\n1861\n1458\n1474\n1613\n1681\n1586\n1441\n1499\n1865\n1735\n1989\n1952\n792\n1669\n1509\n1481\n1893\n1445\n1834\n1779\n1732\n1826\n1595\n1829\n449\n1920\n1707\n1780\n1935\n1867\n1769\n1107\n919\n1382\n1604\n1875\n1453\n1496\n1946\n1659\n1570\n1692\n1630\n1638\n1922\n1691\n1580\n1880\n1482\n1762\n1775\n1376\n1434\n1856\n1971\n1646\n1951\n1416\n1889\n1773\n1814\n1471\n1488\n1736\n1743\n1459\n1389\n1498\n1663\n1611\n1727\n1699\n1624\n1511\n1767\n1754\n1785\n1491\n1235\n1510\n1500\n1485"}
+```
+
+```elixir
+input =
+  puzzle_input
+  |> String.split("\n", trim: true)
+  |> Enum.map(&String.to_integer/1)
+  |> Enum.sort()
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+[373, 449, 639, 792, 811, 919, 1004, 1057, 1107, 1198, 1209, 1235, 1338, 1372, 1376, 1382, 1383,
+ 1386, 1389, 1392, 1395, 1396, 1397, 1398, 1402, 1407, 1408, 1411, 1416, 1420, 1422, 1424, 1425,
+ 1427, 1429, 1434, 1441, 1442, 1443, 1445, 1453, 1455, 1456, 1458, 1459, 1462, 1466, 1469, 1471,
+ 1474, ...]
+```
+
+```elixir
+defmodule Report do
+  def find([], _, _), do: nil
+  def find(_, _, sum) when sum < 0, do: nil
+  def find([a | _], 1, a), do: [a]
+
+  def find([a | rest], n, sum) do
+    case find(rest, n - 1, sum - a) do
+      nil -> find(rest, n, sum)
+      nums when is_list(nums) -> [a | nums]
+    end
+  end
+end
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+{:module, Report, <<70, 79, 82, 49, 0, 0, 8, ...>>, {:find, 3}}
+```
+
+## Part 1
+
+```elixir
+Report.find(input, 2, 2020) |> Enum.product()
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+980499
+```
+
+## Part 2
+
+```elixir
+Report.find(input, 3, 2020) |> Enum.product()
+```
+
+<!-- livebook:{"output":true} -->
+
+```
[phone]
+```
+
+<!-- livebook:{"offset":2857,"stamp":{"token":"XCP.XnJnYSRQgz2UOQ3-aY4Wm_4ac7Pe55mGzaFCONZvS7KA-jlyVQYcIKjXR6X8BV8b5w148g-6oYynzwJ-it0om0UAWkB3kajGGEYsa5LCmZRmUjW5iuT6zTZ5VoYqHjiwSc0","version":2}} -->

2020/day02.livemd

···
+<!-- livebook:{"persist_outputs":true} -->
+
+# Day 02
+
+```elixir
+Mix.install([:kino_aoc])
+```
+
+## Section
+
+<!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIyIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjAifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->
+
+```elixir
+{:ok, puzzle_input} =
+  KinoAOC.download_puzzle("2020", "2", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+{:ok,
+ "5-10 b: bhbjlkbbbbbbb\n3-4 j: hjvj\n8-9 p: pmljtsttp\n3-4 t: hvtttqhdjmmnbqwbgfs\n4-6 m: mblwtzmvmdjkkmmtsckm\n6-9 f: ffffftfff\n1-3 g: xggg\n3-10 k: rwkhttkxxdpnlkq\n3-11 w: wwmwwwwwwwww\n5-7 f: fffffffff\n1-4 l: lglllbc\n2-5 n: njnnn\n6-8 t: tcjtltttttdttjttbt\n10-20 d: djddddccdbdddddddndd\n2-5 z: gzppzhrhzdthnpcr\n13-14 p: plvppptppppzppbkpk\n11-13 t: jjtjvzfhsrtsmkdhj\n11-12 r: rtrdvrrxrrxrzr\n2-6 x: dxsvxgvk\n7-11 x: hcxxpvxrnmxckkq\n12-17 s: sssssssssssrssssss\n2-4 v: vvpvvvjvvjvvqbvv\n15-18 h: thqhhhgjjqhhnhhznz\n8-11 j: jbmgbtmjtbb\n2-4 d: xxdfvp\n2-7 p: fftlppz\n9-13 d: dfddddddsdddds\n5-7 d: ddddddz\n2-3 h: hfbhhh\n1-4 k: rmkvkkkk\n16-17 w: wwwhwwwwwwwwwwwwq\n5-8 l: gllxllnlqlglrplk\n1-7 p: mhnpspp\n5-13 f: qhwffbtfzmdffztfjs\n2-8 f: fkjhvcbflbwhggtbbcb\n2-3 m: bcmldxmdh\n6-7 p: ppcpppw\n3-10 m: mmmmmmmmmj\n4-12 s: ssjssssssssmsss\n2-5 j: rmjnjtjjjj\n2-3 q: qqdqq\n10-15 v: vvvvvvvvvvvvvvdvvvvv\n1-4 w: wwwc\n4-14 m: mmsmmmvmmmmmqqmmmmm\n7-10 d: ddcdddzdddddd\n4-5 h: hhhhh\n9-17 p: ppppppppqppppppppp\n6-7 m: mqtmnms\n4-5 s: pssss\n2-6 t: tdttttpwttt\n7-8 l: llsxsllzlwl\n7-10 f: fflffffkqffffm\n3-4 f: cdfp\n3-4 z: zzzz\n6-7 s: sbssdvs\n3-4 g: ggdv\n11-16 l: lllllnbsqlfzwrfljkh\n3-4 k: tqkxxfk\n3-17 s: xshmvlmzrjdpnvlssn\n1-16 l: lzzvllgktckllmlltl\n5-6 l: qlltvl\n6-7 p: npvbpcp\n4-6 g: gmgvgn\n12-13 r: rrnlrrwrtvrrrrcrrrv\n11-12 h: hhvxhhhhwjhd\n13-14 p: pdppcsjtppppppvtwpj\n10-14 l: hljjkjxlfwzlllclzq\n18-19 z: zzzzzzzzzzzzzzztzhn\n11-12 p: hpspwrkqbnpp\n16-18 h: hhhhhhghhhhhhhhwhbh\n1-2 p: vpxnqqbgrxprmh\n13-19 m: mmmmmmmmmmmmqmmmmqm\n1-2 n: ncndsnl\n9-10 x: xxxxxxxxxgxxd\n9-12 w: wwwwwwwwwwzwwdfgwwp\n3-5 h: nqhvhzb\n4-5 j: jjjns\n10-12 f: ffffffffffff\n7-10 v: mgvrwvvsjw\n3-5 m: wpmmm\n3-10 s: ffsbvjdslsnshqs\n9-10 z: mgzzbjzqsz\n3-13 d: ddjdddddddddnd\n2-4 l: tqkfhpwvvmc\n1-3 z: zzzzzn\n3-5 l: ctljlckdpnlchrzbc\n6-7 v: hqvcvvv\n11-13 v: vvvvcvvvvvvvvvv\n8-9 t: ztndmlwdb\n5-6 v: fdxxrvwpw\n1-4 n: xnkb\n16-17 v: vvvvvvvvvvvvvvvvnvv\n12-14 b: bbbbbxbbbdbgbcb\n1-7 w: wwwwwwrwwjtwk\n3-10 d: bxnhbhrmgd\n4-5 k: kkknkk\n2-4 n: bndln\n3-10 p: vpkppcppppcplpksp\n9-10 d: fhbzbdzqsdxlhnbt\n11-13 z: zzmzzzzwzpzzz\n12-17 b: hkbcbbhthbrbbdgbl\n11-13 c: cpccnxccxbjtm\n5-6 n: nnrmnfnsnn\n3-8 l: sslkllwljcgl\n1-9 p: fpppzzpppppphtrhppp\n4-11 h: kskbvrqhdjph\n3-9 r: rsrvxnrchtrrrr\n4-5 n: nwbln\n3-4 g: gjgv\n13-14 r: rrrrrrsrtrrrrrrrr\n10-15 m: mmmmmmmmmtmmgmm\n5-6 k: wkpkkqk\n10-11 l: wlbllglkbltblrqlllm\n6-7 d: ddddsrddd\n17-18 v: vvvvvvvvvvvfvgvvsvv\n6-10 n: nngnnnnvnknn\n7-8 t: qdztnrnt\n5-11 d: dfbdxqbmsdd\n1-6 n: znnvqdnx\n7-9 k: kkkkkkkkl\n5-6 m: mmmszmtmmks\n1-5 l: wlllllll\n13-14 m: mcmmmmmlmmmmjmmm\n1-7 k: kklkjvckb\n14-15 d: ddddmddddmddddddd\n18-19 k: kfkkkkkkkkkkkkkkkpkk\n3-4 z: czjzc\n17-18 t: btttttjmltrttxctgt\n1-4 c: cccscqcccc\n9-14 k: tcwcstszkvhjfmrqpkp\n3-8 c: ccccccjcscncp\n10-11 d: dddddddddmdd\n3-5 m: rgmfmkmd\n1-5 k: mfhnk\n4-5 x: cwnxftlt\n1-3 n: flnqmnnhnn\n2-5 f: vwlcnsfd\n4-8 c: cccccccbc\n10-12 v: dhfvlvbvspjldzch\n7-16 f: ffsmffffjffqfpffff\n10-13 n: njtrrnnqntjtn\n13-17 f: frffcfffrjffffdfpff\n5-10 m: mmmmvfmmmmmmmmdm\n5-6 v: vvvvvzvvvvv\n6-12 r: dqrrcrhrhjsrrr\n8-14 z: zzzzzzzlzzzgzsz\n5-9 q: qkwzsvwdg\n12-13 d: vzjfvddgctfdrr\n6-7 f: mgndffb\n2-5 x: nxxmx\n7-9 c: cmxsccccf\n1-7 n: nnnnnnnnnn\n6-8 g: gggglfgp\n2-13 v: kvwxcrfmpfcfdrgv\n5-7 p: tpplpffpccpp\n8-12 m: mmmmmmmmmmmxm\n9-10 v: vvvvvvvvvcv\n4-5 m: mbnmmkknmmwshmkthj\n8-9 t: cltntrtpqwtcsftttf\n8-16 f: ffffrffpffffffffff\n6-8 t: sttcctttdttdwjdndtt\n5-9 k: ckkkkvdkvkk\n1-3 f: ffczfpgmf\n2-4 w: wwlwwd\n1-9 d: lddbhdddmtfdmdzdrdhd\n16-17 h: xfqlbhhpbnclvztzzzx\n2-7 r: rrbntqrrsrkrm\n1-4 r: qwrr\n12-14 b: tvbbzjbbbbbbbn\n5-7 h: hhjvghth\n2-3 d: dndrcx\n8-9 c: ccccscccpc\n5-8 s: srcsszcsp\n13-15 g: gggggggglggggglggggg\n11-13 b: bbbbbfrbfbbgbb\n1-8 b: jbbkqbbbpbbbbbbp\n11-14 n: nnnnnnnnnnmnnnn\n1-4 g: qsggg\n14-15 l: sllslllggllljkdlm\n1-5 s: pvssbspdsshsssssrs\n7-10 c: ccccccmcpgcc\n6-14 m: bcfkpmvmcmmjml\n1-3 n: ncnnnnn\n12-14 j: bjfjxjjpjrjjjxjjk\n10-12 v: vfvvvvvvqjvvvwvwt\n6-13 d: stddxdnjrddhwgdhrfjf\n5-6 w: qcwhnwwk\n2-3 x: mcxfxckptzvw\n12-20 b: lvgvbxsxxlvbhfcxbtzr\n1-2 d: ddbdqd\n5-10 h: mhtnjvhhhs\n2-6 z: ztzzdxzzzqbvg\n2-7 t: ttjkqztr\n3-4 g: bgvggrxrhtlklfj\n4-5 q: qqqvq\n1-3 c: ccpc\n4-6 j: jjrdjj\n8-11 c: ncvshccccccsb\n" <> ...}
+```
+
+```elixir
+data =
+  puzzle_input
+  |> String.split("\n", trim: true)
+  |> Enum.map(fn input ->
+    [spec, pass] = String.split(input, ": ", parts: 2)
+    [range, char] = String.split(spec, " ", parts: 2)
+
+    [min, max] =
+      range
+      |> String.split("-", parts: 2)
+      |> Enum.map(&String.to_integer/1)
+
+    {min..max, char, pass}
+  end)
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+[
+  {5..10, "b", "bhbjlkbbbbbbb"},
+  {3..4, "j", "hjvj"},
+  {8..9, "p", "pmljtsttp"},
+  {3..4, "t", "hvtttqhdjmmnbqwbgfs"},
+  {4..6, "m", "mblwtzmvmdjkkmmtsckm"},
+  {6..9, "f", "ffffftfff"},
+  {1..3, "g", "xggg"},
+  {3..10, "k", "rwkhttkxxdpnlkq"},
+  {3..11, "w", "wwmwwwwwwwww"},
+  {5..7, "f", "fffffffff"},
+  {1..4, "l", "lglllbc"},
+  {2..5, "n", "njnnn"},
+  {6..8, "t", "tcjtltttttdttjttbt"},
+  {10..20, "d", "djddddccdbdddddddndd"},
+  {2..5, "z", "gzppzhrhzdthnpcr"},
+  {13..14, "p", "plvppptppppzppbkpk"},
+  {11..13, "t", "jjtjvzfhsrtsmkdhj"},
+  {11..12, "r", "rtrdvrrxrrxrzr"},
+  {2..6, "x", "dxsvxgvk"},
+  {7..11, "x", "hcxxpvxrnmxckkq"},
+  {12..17, "s", "sssssssssssrssssss"},
+  {2..4, "v", "vvpvvvjvvjvvqbvv"},
+  {15..18, "h", "thqhhhgjjqhhnhhznz"},
+  {8..11, "j", "jbmgbtmjtbb"},
+  {2..4, "d", "xxdfvp"},
+  {2..7, "p", "fftlppz"},
+  {9..13, "d", "dfddddddsdddds"},
+  {5..7, "d", "ddddddz"},
+  {2..3, "h", "hfbhhh"},
+  {1..4, "k", "rmkvkkkk"},
+  {16..17, "w", "wwwhwwwwwwwwwwwwq"},
+  {5..8, "l", "gllxllnlqlglrplk"},
+  {1..7, "p", "mhnpspp"},
+  {5..13, "f", "qhwffbtfzmdffztfjs"},
+  {2..8, "f", "fkjhvcbflbwhggtbbcb"},
+  {2..3, "m", "bcmldxmdh"},
+  {6..7, "p", "ppcpppw"},
+  {3..10, "m", "mmmmmmmmmj"},
+  {4..12, "s", "ssjssssssssmsss"},
+  {2..5, "j", "rmjnjtjjjj"},
+  {2..3, "q", "qqdqq"},
+  {10..15, "v", "vvvvvvvvvvvvvvdvvvvv"},
+  {1..4, "w", "wwwc"},
+  {4..14, "m", "mmsmmmvmmmmmqqmmmmm"},
+  {7..10, "d", "ddcdddzdddddd"},
+  {4..5, "h", "hhhhh"},
+  {9..17, "p", "ppppppppqppppppppp"},
+  {6..7, "m", ...},
+  {4..5, ...},
+  {...},
+  ...
+]
+```
+
+## Part 1
+
+```elixir
+Enum.count(data, fn {range, <<char>>, pass} ->
+  count = for <<^char <- pass>>, reduce: 0, do: (n -> n + 1)
+
+  count in range
+end)
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+439
+```
+
+## Part 2
+
+```elixir
+Enum.count(data, fn {a..b//1, char, pass} ->
+  char_1 = binary_part(pass, a - 1, 1)
+  char_2 = binary_part(pass, b - 1, 1)
+
+  char_1 != char_2 and char in [char_1, char_2]
+end)
+```
+
+<!-- livebook:{"output":true} -->
+
+```
+584
+```
+
+<!-- livebook:{"offset":7223,"stamp":{"token":"XCP.hfrcfr0pT-nj7-j4nWaJo4YFPkw0SkyS5kkbU0031loYsccpQ9B5PfrwwU0eiuPMlC2H5sN-qI3EDIk0RJZEkgYu4EvABNl_2k4g0_4hLnQxFsTtp8-IrIUPuzEQJLdGAJ4","version":2}} -->