xuu/advent-of-code
1
0
Fork 0
Code Pull Requests 1 Actions Activity

chore: save day18 #12

Merged
xuu merged 5 commits from day18 into main 2023-12-27 14:07:32 -07:00
Conversation 0 Commits 5 Files Changed 12 +1037
4 changed files with 1037 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit be110c4dea - Show all commits

14
day18/example.txt Normal file
View File

@ -0,0 +1,14 @@
R 6 (#70c710)
D 5 (#0dc571)
L 2 (#5713f0)
D 2 (#d2c081)
R 2 (#59c680)
D 2 (#411b91)
L 5 (#8ceee2)
U 2 (#caa173)
L 1 (#1b58a2)
U 2 (#caa171)
R 2 (#7807d2)
U 3 (#a77fa3)
L 2 (#015232)
U 2 (#7a21e3)

766
day18/input.txt Normal file
View File

@ -0,0 +1,766 @@
R 4 (#0a7a60)
U 8 (#4453b3)
R 6 (#8e4f70)
U 2 (#4453b1)
R 4 (#0feb00)
U 4 (#355591)
R 8 (#2a09c0)
U 4 (#544c71)
R 4 (#472930)
U 2 (#199e33)
R 3 (#3d8df0)
U 5 (#199e31)
R 7 (#45de50)
U 4 (#57a941)
L 7 (#671c70)
U 5 (#5e5e81)
R 4 (#2e9b60)
U 8 (#490881)
L 7 (#1846f0)
U 3 (#304101)
L 4 (#1846f2)
D 2 (#58f3f1)
L 9 (#2e9b62)
D 2 (#56dcd1)
L 2 (#671c72)
D 9 (#275fd1)
L 4 (#76b7b2)
U 9 (#5b9641)
L 4 (#1d3212)
U 10 (#3d1841)
L 3 (#5ad5e2)
D 6 (#010211)
L 5 (#13ec52)
D 8 (#166471)
L 3 (#53ebc0)
D 5 (#0fdba1)
L 4 (#54e450)
D 9 (#440a21)
L 3 (#49b242)
D 5 (#2f0171)
L 6 (#447332)
D 4 (#182561)
L 8 (#1aaaa2)
D 6 (#0996a1)
L 4 (#1c1212)
D 6 (#5780d1)
L 7 (#0fc1d2)
D 7 (#36cb41)
L 3 (#505552)
D 7 (#8d8b81)
R 4 (#2bf742)
D 7 (#152791)
R 5 (#760492)
D 3 (#11a991)
R 3 (#5debc0)
D 10 (#59f211)
L 4 (#66d342)
D 8 (#1fc6b1)
R 4 (#66d340)
D 6 (#72dff1)
L 2 (#3f1b10)
D 4 (#2fca13)
L 10 (#2d0162)
D 5 (#8b5e53)
L 6 (#2d0160)
U 2 (#317053)
L 2 (#650c20)
U 7 (#2bed01)
R 10 (#409ed0)
U 2 (#166713)
L 10 (#939350)
U 6 (#166711)
L 4 (#38a180)
D 3 (#1d95f1)
L 6 (#11ea60)
D 5 (#931dc1)
R 6 (#11bf70)
D 7 (#536051)
L 3 (#995b60)
D 2 (#254e91)
L 3 (#332fd2)
U 6 (#7669f1)
L 3 (#574642)
U 6 (#1778a1)
L 3 (#1a00c2)
U 5 (#2eaa81)
L 3 (#1cf8e2)
U 6 (#0c71a1)
L 6 (#868472)
U 3 (#0a9fd1)
R 9 (#104c02)
U 4 (#082451)
L 7 (#850d02)
U 6 (#082453)
L 7 (#322552)
U 3 (#1339d1)
L 6 (#8e11d2)
U 4 (#6c5691)
R 6 (#1dda10)
U 3 (#25e5c3)
R 7 (#370670)
U 4 (#9324f1)
L 3 (#451030)
U 7 (#1f1021)
L 7 (#0ba3c0)
U 5 (#8a10a3)
L 8 (#67db30)
U 5 (#282473)
L 4 (#0cd350)
U 4 (#25e5c1)
R 3 (#6b4ee0)
U 4 (#333cf1)
R 5 (#02b610)
D 4 (#4e7cc1)
R 3 (#92abb0)
U 5 (#2f6ff1)
R 5 (#483360)
U 5 (#7b1cd1)
L 8 (#3a5d50)
U 3 (#1d2461)
R 8 (#3b2fd0)
U 5 (#630763)
R 6 (#5033c0)
U 3 (#252523)
R 7 (#08eeb0)
U 8 (#516633)
L 7 (#156240)
U 4 (#2db063)
L 3 (#791070)
D 5 (#2920a3)
L 3 (#0dafe0)
U 5 (#4185b3)
L 5 (#7ac0e0)
U 2 (#5a6cd3)
L 2 (#3ca790)
U 7 (#755403)
L 4 (#3b0740)
U 5 (#2004a3)
L 3 (#2db4f0)
U 6 (#602a23)
R 5 (#32c1c0)
D 2 (#000f53)
R 5 (#388360)
D 7 (#24d9e3)
R 4 (#4703a0)
D 3 (#2f1133)
R 3 (#4703a2)
U 11 (#52e853)
R 5 (#278132)
D 11 (#0665e3)
R 3 (#239112)
U 6 (#8f0ad1)
R 5 (#447de2)
U 6 (#8f0ad3)
R 6 (#636122)
U 2 (#187283)
R 3 (#5aae62)
U 10 (#1d8833)
L 5 (#476db0)
U 5 (#136393)
L 7 (#29e6b0)
U 5 (#136391)
R 7 (#3ba060)
U 3 (#635e23)
L 5 (#2042f0)
U 3 (#181643)
L 6 (#5af952)
U 8 (#28d0b1)
L 2 (#4a98f2)
U 9 (#28d0b3)
L 6 (#27a572)
D 3 (#3d7213)
L 4 (#516842)
D 11 (#21ef63)
L 5 (#38e342)
D 2 (#1118b3)
L 3 (#560502)
D 9 (#1118b1)
R 2 (#1c39a2)
D 2 (#303ab3)
R 6 (#716ba0)
D 6 (#780a93)
L 8 (#77ec30)
U 2 (#780a91)
L 3 (#271100)
U 10 (#5882f3)
L 4 (#2050c2)
D 3 (#434843)
L 3 (#7d9572)
D 2 (#3129b3)
L 5 (#21fb12)
D 5 (#8c2c33)
L 4 (#57bf92)
D 6 (#2730b3)
L 4 (#6a3902)
D 8 (#4656a3)
L 5 (#60ac80)
D 4 (#43b863)
R 9 (#3d69a0)
D 8 (#3ca913)
L 2 (#411d80)
D 3 (#725383)
L 8 (#4a98d0)
D 9 (#274553)
L 5 (#580d60)
U 5 (#568223)
L 6 (#473af0)
U 5 (#827593)
L 7 (#251dc2)
U 5 (#0fcea3)
L 8 (#5ae3d2)
U 3 (#4efa11)
R 9 (#389852)
U 2 (#7f7f91)
R 6 (#618342)
U 3 (#441143)
L 7 (#886df2)
U 3 (#26a093)
L 8 (#886df0)
U 4 (#63c7d3)
L 3 (#04f842)
D 10 (#0fcea1)
L 6 (#388e62)
U 10 (#3ae7f3)
L 3 (#2a6880)
U 6 (#3bfd53)
L 6 (#73a0c0)
U 5 (#3bfd51)
L 4 (#0d18a0)
U 2 (#19da93)
L 6 (#120600)
U 8 (#233b53)
L 6 (#2e1050)
U 3 (#4b2aa3)
L 4 (#5f9930)
U 10 (#6e65f1)
R 6 (#1eefa0)
U 9 (#50b9d3)
R 2 (#548ed0)
U 9 (#50b9d1)
R 7 (#8bd9f0)
U 4 (#5ae473)
R 6 (#0b0490)
U 10 (#186891)
R 4 (#764830)
U 7 (#33b0e1)
R 5 (#363c90)
U 8 (#7bd631)
R 7 (#031e30)
U 7 (#095881)
R 3 (#640e50)
D 5 (#02e7f3)
R 7 (#0922f0)
D 7 (#6b7af3)
R 9 (#0922f2)
D 3 (#62e543)
R 3 (#21e320)
U 9 (#5ead81)
R 7 (#01fd70)
D 9 (#3b0cf1)
R 2 (#2758a0)
D 5 (#7279b1)
R 8 (#5c7dc0)
D 7 (#3c8db1)
R 4 (#3c3740)
U 2 (#26b151)
R 6 (#11eb12)
U 4 (#587921)
R 6 (#11eb10)
U 4 (#320051)
R 4 (#038630)
U 3 (#6a2e61)
R 2 (#4ff680)
U 5 (#3c57f1)
R 9 (#0b2440)
U 8 (#497533)
L 6 (#704680)
U 11 (#549113)
R 6 (#23b470)
U 4 (#9e0641)
R 7 (#1aeec0)
D 7 (#4a6331)
R 2 (#547d80)
D 5 (#457a71)
R 9 (#7daa90)
D 4 (#16d7b1)
L 6 (#266810)
D 3 (#363561)
L 5 (#5312b2)
D 4 (#42c301)
R 5 (#9a0952)
D 7 (#42c303)
R 7 (#7d1df2)
D 4 (#51e321)
R 5 (#609422)
D 4 (#3b8f01)
R 6 (#644792)
U 4 (#2d8b11)
R 7 (#22bbc2)
D 7 (#6b39b1)
R 5 (#680e72)
U 2 (#7f9f31)
R 3 (#0e9b52)
U 3 (#3086c1)
R 3 (#5a60c0)
U 6 (#53b6e3)
R 7 (#8117d0)
U 7 (#53b6e1)
R 3 (#2cb930)
U 3 (#1bffd1)
R 6 (#4539f0)
U 8 (#680411)
R 4 (#6032c0)
U 6 (#255061)
R 3 (#5562a0)
U 6 (#088071)
R 3 (#3bf2f0)
U 5 (#52bdb1)
L 6 (#070500)
U 5 (#69e001)
R 6 (#070502)
U 3 (#071051)
R 2 (#036000)
U 4 (#0ea8a1)
R 5 (#05e4d0)
U 3 (#674de1)
R 3 (#804250)
D 6 (#3ffca1)
R 4 (#23dcb2)
D 6 (#9f9841)
L 5 (#45f210)
D 9 (#15efc1)
R 5 (#45f212)
D 4 (#969551)
L 9 (#23dcb0)
D 2 (#41bea1)
L 4 (#2f2a32)
D 4 (#71ffd1)
R 3 (#5c0bb2)
D 7 (#6f3501)
R 4 (#2b0a72)
D 4 (#7b3571)
R 3 (#1c67d2)
U 11 (#42f011)
R 3 (#51ae62)
D 3 (#75fcf1)
R 3 (#1f4742)
D 4 (#2813f1)
R 4 (#3d1812)
D 2 (#2b1d01)
R 11 (#1eb302)
U 3 (#27b0a1)
R 4 (#227b20)
U 5 (#34b7e1)
R 10 (#201220)
U 7 (#0502f3)
R 4 (#5ab7f0)
U 4 (#0502f1)
R 4 (#5d09b0)
U 7 (#504a81)
R 7 (#1e8250)
U 3 (#715aa1)
R 6 (#26d290)
U 6 (#9a12f1)
L 3 (#18be90)
U 8 (#037d11)
L 5 (#647600)
U 3 (#40b983)
L 5 (#04e450)
U 3 (#9a9a43)
L 8 (#04e452)
U 6 (#8af153)
R 8 (#6cbc90)
U 4 (#04d121)
L 4 (#285292)
U 3 (#688d51)
L 6 (#176332)
U 4 (#400a91)
L 5 (#176330)
U 5 (#43def1)
R 2 (#285290)
U 2 (#3e0711)
R 3 (#7eb9c0)
U 7 (#36f611)
R 7 (#666af0)
D 7 (#381b31)
R 3 (#298922)
U 3 (#475671)
R 6 (#977c12)
D 4 (#602d01)
R 6 (#25b0c2)
D 6 (#7ede81)
R 3 (#1d58c2)
D 8 (#873523)
L 9 (#265ae2)
D 3 (#57d663)
R 7 (#1565c2)
D 8 (#06ed11)
R 4 (#a348c2)
D 2 (#06ed13)
R 8 (#12d052)
D 4 (#2d3741)
L 7 (#0ccfd2)
D 3 (#1fcd61)
R 4 (#39a4c2)
D 3 (#44f7f1)
R 6 (#5c3202)
D 8 (#2625c1)
L 8 (#2b08c2)
D 2 (#20d7e1)
L 2 (#67b892)
D 10 (#546471)
R 7 (#484ef2)
D 7 (#49bc91)
R 4 (#91aa72)
U 11 (#499591)
R 3 (#0048b2)
U 7 (#34a7a1)
R 7 (#514600)
U 8 (#1cdc43)
L 7 (#471470)
U 3 (#8c8393)
R 3 (#18a780)
U 5 (#8c8391)
R 3 (#4e6f80)
U 3 (#1cdc41)
R 8 (#428930)
U 5 (#5dcb51)
R 3 (#4b21e2)
U 4 (#0464b1)
R 9 (#850552)
D 8 (#464881)
R 7 (#543852)
D 3 (#2d3a11)
R 3 (#081b22)
D 5 (#0cc731)
R 7 (#6990e0)
D 3 (#79d7b1)
R 3 (#509520)
D 5 (#438571)
R 3 (#27d510)
D 3 (#30d2d3)
L 8 (#1b7a00)
D 5 (#8a0da3)
L 8 (#1b7a02)
U 5 (#027cb3)
L 7 (#350130)
D 8 (#2ff771)
R 7 (#16dc02)
D 2 (#68f1c1)
R 5 (#02f782)
D 6 (#4e2a41)
R 11 (#448e32)
D 5 (#2cfac1)
L 11 (#417502)
D 5 (#2cfac3)
L 4 (#22f022)
U 9 (#1e9f01)
L 5 (#543572)
U 3 (#076e31)
L 6 (#081b20)
U 5 (#1ae851)
L 3 (#823132)
U 9 (#2d7993)
L 4 (#5738f2)
D 8 (#79e273)
L 4 (#5c9ad2)
D 8 (#4ed1b3)
L 3 (#311722)
D 4 (#0d5493)
L 6 (#5d63e0)
D 6 (#178cf3)
L 5 (#75b1b0)
D 5 (#178cf1)
L 6 (#11d550)
D 6 (#44ed03)
L 3 (#76a842)
U 6 (#3b6993)
L 5 (#184892)
D 4 (#5c8163)
L 3 (#14d872)
U 2 (#261a01)
L 5 (#2d01e2)
U 9 (#326ca3)
L 4 (#59ad32)
U 8 (#326ca1)
R 4 (#389ab2)
U 9 (#261a03)
L 4 (#50cb42)
D 4 (#2f8263)
L 5 (#9f3752)
D 6 (#4bb383)
L 4 (#2693f2)
D 4 (#19dca3)
R 4 (#475bc2)
D 6 (#960e13)
L 7 (#0c90a2)
D 8 (#3463d3)
L 6 (#5a82e2)
D 3 (#5a5c43)
R 7 (#120bf2)
D 3 (#5069e3)
R 3 (#4b47a2)
D 6 (#635b63)
R 4 (#66ca10)
U 4 (#1418f1)
R 7 (#1d5470)
D 4 (#1418f3)
R 8 (#66d4f0)
D 5 (#3c5533)
R 4 (#2f6e02)
D 3 (#2cf5e3)
R 4 (#633ec2)
D 7 (#2cf5e1)
R 7 (#5846b2)
D 3 (#4f9d63)
R 4 (#533380)
D 11 (#13c7e3)
R 2 (#222b62)
D 3 (#928ab3)
R 5 (#222b60)
U 5 (#0a4793)
R 5 (#15d3b0)
U 8 (#363fe1)
R 4 (#2feb30)
U 5 (#05d8b1)
R 3 (#39e030)
U 3 (#05d8b3)
R 2 (#3cd780)
U 8 (#02c781)
R 5 (#186452)
D 3 (#37bba1)
R 5 (#9e1232)
D 5 (#58e6f1)
R 5 (#182c30)
D 5 (#072db1)
R 5 (#85e600)
D 4 (#607651)
R 5 (#186450)
D 3 (#0aca91)
L 5 (#0ceb10)
D 5 (#860001)
L 6 (#54c8b0)
U 5 (#393971)
L 4 (#37c390)
D 3 (#1f1433)
L 5 (#3d8790)
D 6 (#353623)
R 4 (#78c830)
D 4 (#6fafa3)
R 6 (#2b0612)
D 5 (#31fff3)
R 7 (#8b49b2)
D 9 (#6f0ee3)
R 5 (#4212e0)
D 6 (#5d11f3)
R 6 (#648340)
D 8 (#393743)
R 6 (#34ddd0)
U 8 (#346fb3)
R 5 (#34fc22)
D 4 (#71c453)
R 6 (#5048f2)
D 4 (#0bb993)
R 4 (#42b9f0)
D 9 (#5cdf83)
R 5 (#42b9f2)
D 3 (#6f3f93)
R 3 (#3dbae2)
D 8 (#495363)
R 9 (#328ba2)
D 3 (#77afa1)
R 5 (#575710)
D 2 (#10d861)
R 4 (#257822)
D 4 (#6efe61)
R 9 (#257820)
D 5 (#521d01)
R 5 (#575712)
D 6 (#494cf1)
L 5 (#683ab2)
D 4 (#5e79c3)
L 3 (#4242a2)
D 4 (#5e79c1)
L 7 (#2c3442)
D 8 (#2fbd23)
L 5 (#636fb2)
D 5 (#63bd53)
L 2 (#299960)
D 6 (#31ea33)
R 3 (#51dfb0)
D 7 (#4e4ec3)
R 4 (#7b7912)
D 5 (#4b4bf3)
R 4 (#54e882)
D 5 (#7d2193)
R 3 (#3b77d2)
D 3 (#826973)
R 8 (#646ec2)
D 4 (#076c63)
L 10 (#674052)
D 6 (#3676b1)
L 9 (#3bd890)
D 4 (#7feb71)
L 3 (#3bd892)
D 3 (#27fc21)
R 8 (#66bba2)
D 8 (#645c73)
R 5 (#43e132)
D 5 (#51d9e3)
R 8 (#43e130)
D 6 (#2827f3)
R 4 (#412c92)
D 5 (#7e7f63)
L 4 (#218122)
D 4 (#546e83)
L 9 (#82f672)
D 8 (#6ed383)
L 3 (#701412)
D 7 (#47de23)
L 5 (#46f912)
D 7 (#0d9ec3)
L 4 (#515142)
D 3 (#4699e3)
L 9 (#2ed562)
U 6 (#00a273)
L 9 (#8d7d12)
U 2 (#6c3a83)
L 7 (#318fa2)
U 7 (#0bd473)
L 2 (#6d5050)
U 10 (#415673)
R 3 (#9e8420)
U 6 (#1ff213)
R 5 (#0c8bf0)
U 2 (#479a11)
R 6 (#977360)
U 5 (#479a13)
L 8 (#250680)
U 2 (#1ff211)
L 3 (#216630)
U 3 (#22d143)
L 3 (#3b4342)
U 7 (#9d4ff3)
L 5 (#43aca2)
U 6 (#29efd3)
L 3 (#5c6a12)
D 11 (#134a73)
L 6 (#2a0982)
U 11 (#444723)
L 4 (#47e2e2)
U 4 (#6855c3)
L 4 (#06a382)
U 4 (#2222e3)
R 3 (#4edc62)
U 6 (#9a2683)
R 6 (#131872)
U 10 (#4f5a23)
R 4 (#858f70)
U 5 (#4d4823)
L 9 (#3f73f0)
U 3 (#46f5a3)
L 4 (#935370)
U 4 (#46f5a1)
L 5 (#3ca140)
U 6 (#07b1e3)
L 5 (#61ecd0)
U 5 (#654743)
L 5 (#3cec42)
U 6 (#30bb83)
R 3 (#920782)
U 6 (#1f9323)
R 8 (#3d8aa2)
U 8 (#7492c3)
R 3 (#301cd2)
U 3 (#32e2f1)
R 4 (#6936f2)
U 6 (#32e2f3)
R 6 (#5112c2)
U 7 (#535b53)
L 10 (#61f4d0)
U 3 (#915863)
L 2 (#51d540)
U 5 (#32dee1)
L 10 (#4ec320)
U 5 (#406bc1)
L 2 (#1b3890)
U 3 (#681181)
L 6 (#35ed60)
D 9 (#153fd3)
L 5 (#323e30)
U 5 (#381ad3)
L 3 (#69a550)
U 3 (#310f63)
L 4 (#2cbb80)
U 5 (#3448a3)
R 6 (#206282)
U 5 (#202ab1)
L 6 (#83af82)
U 4 (#202ab3)
L 4 (#248d02)
D 9 (#28a983)
L 4 (#32cf10)
D 7 (#249d73)
R 4 (#2f5c70)
D 6 (#021c93)
L 7 (#957782)
D 6 (#550e53)
R 5 (#957780)
D 6 (#50bb13)
R 9 (#49b7f2)
U 6 (#096e93)
R 4 (#769452)
D 3 (#6dc543)
R 5 (#2ad352)
D 7 (#167963)
L 10 (#673682)
D 5 (#152883)
L 10 (#13f332)
D 3 (#996721)
L 4 (#4be2a2)
D 4 (#9c2443)
L 4 (#2b83b0)
D 3 (#5d63b3)
L 9 (#9cfd40)
D 7 (#49e793)
L 7 (#0b5422)
D 8 (#5c51b3)
L 2 (#6db152)
D 4 (#215b53)
L 3 (#38dc12)
D 8 (#7dad01)
L 6 (#559e22)
D 3 (#929d23)
L 2 (#0f7560)
D 6 (#448d13)
L 7 (#73a972)
D 2 (#2221c3)
L 3 (#73a970)
D 5 (#53b553)
R 10 (#513590)
D 3 (#293c83)
L 10 (#58e2e0)
D 4 (#54dd21)
L 5 (#1bcdf2)
D 5 (#4b0b71)
L 5 (#1bcdf0)
U 6 (#43b811)
L 5 (#4df1d0)
U 6 (#36d6a3)
R 5 (#3bfb20)
U 5 (#75de61)
L 5 (#1e0ec2)
U 4 (#30b571)
L 7 (#2dfd20)
D 5 (#49ad61)
L 2 (#2dfd22)
D 11 (#715d41)
L 3 (#1e0ec0)
U 4 (#0f2091)
L 4 (#9d29c0)
U 9 (#475a73)
L 2 (#108610)
U 3 (#1e5423)
L 8 (#394192)
U 3 (#0274b3)

215
day18/main.go Normal file
View File

@ -0,0 +1,215 @@
package main
import (
"bufio"
_ "embed"
"encoding/hex"
"fmt"
"strings"
aoc "go.sour.is/advent-of-code"
)
// var log = aoc.Log
func main() { aoc.MustResult(aoc.Runner(run)) }
type result struct {
valuePT1 int
valuePT2 int
}
func (r result) String() string { return fmt.Sprintf("%#v", r) }
func run(scan *bufio.Scanner) (*result, error) {
var vecs []vec
for scan.Scan() {
text := scan.Text()
if len(text) == 0 {
continue
}
var s string
v := vec{}
s, text, _ = strings.Cut(text, " ")
v.Direction = direction(s)
s, text, _ = strings.Cut(text, " ")
v.Steps = aoc.Atoi(s)
_, text, _ = strings.Cut(text, "#")
s, _, _ = strings.Cut(text, ")")
b, _ := hex.DecodeString(s)
copy(v.Color[:], b)
vecs = append(vecs, v)
}
var points []point
var x, y int
var minX, minY int
for i, v := range vecs {
fmt.Println("pt ", i, v)
for i := 0; i < v.Steps; i++ {
switch v.Direction {
case "U":
y++
case "D":
y--
case "R":
x++
case "L":
x--
}
minX = min(minX, x)
minY = min(minY, y)
points = append(points, point{d: v.Direction, x: x, y: y, color: v.Color})
}
}
adjX := aoc.ABS(min(0, minX))
adjY := aoc.ABS(min(0, minY))
fmt.Println("minX", minX, "minY", minY)
fmt.Println("adjX", adjX, "adjY", adjY)
trace := make(map[int]map[int]point)
minX, minY = 0, 0
maxX, maxY := 0, 0
for i, p := range points {
// fmt.Println("raw", i, p)
p.x += adjX
p.y += adjY
maxX = max(maxX, p.x)
maxY = max(maxY, p.y)
points[i] = p
if row, ok := trace[p.y]; true {
if !ok {
row = make(map[int]point)
}
row[p.x] = p
trace[p.y] = row
}
}
area := 0
for y := 0; y <= maxY; y++ {
row, ok := trace[y]
if !ok {
continue
}
var last direction
p, inLoop := row[0]
last = p.d
for x := 0; x <= maxX; x++ {
if p, ok := row[x]; ok {
switch last+p.d {
case " U"," L", "UR":
inLoop = true
case "LD", " D", "RD":
inLoop = !inLoop
}
if last != p.d {
last = p.d
}
fmt.Print(p.d)
if inLoop {
area++
}
continue
}
last = direction(" ")
if inLoop {
area++
fmt.Print(".")
} else {
fmt.Print(" ")
}
}
fmt.Println("")
}
// for y := 0; y < len(trace); y++ {
// rng := trace[y]
// sort.Ints(rng)
// for _, r := range ranges(rng) {
// area += r[1] - r[0] + 1
// }
// }
return &result{valuePT1: area}, nil
}
type direction string
const (
U direction = "U"
D direction = "D"
L direction = "L"
R direction = "R"
)
type vec struct {
Direction direction
Steps int
Color [3]byte
}
type point struct {
w direction
d direction
x, y int
color [3]byte
}
func ranges(rng []int) [][]int {
// inLoop := true
var mn int = rng[0]
var last int = rng[0]
var result [][]int
result = append(result, []int{mn, mn})
for _, i := range rng[1:] {
if i-last == 1 {
result[len(result)-1][1] = i
last = i
continue
}
last = i
mn = i
result = append(result, []int{mn, last})
}
if len(result) == 1 {
return result
}
if len(result) == 2 {
return [][]int{{result[0][0], result[1][1]}}
}
if len(result)%2 == 0 {
var result2 [][]int
for i := 0; i < len(result); i += 2 {
result2 = append(result2, []int{result[i][0], result[i+1][1]})
}
return result2
}
fmt.Println("odd ranges", result)
return nil
}

42
day18/main_test.go Normal file
View File

@ -0,0 +1,42 @@
package main
import (
"bufio"
"bytes"
"testing"
_ "embed"
"github.com/matryer/is"
)
//go:embed example.txt
var example []byte
//go:embed input.txt
var input []byte
func TestExample(t *testing.T) {
is := is.New(t)
scan := bufio.NewScanner(bytes.NewReader(example))
result, err := run(scan)
is.NoErr(err)
t.Log(result)
is.Equal(result.valuePT1, 62)
is.Equal(result.valuePT2, 0)
}
func TestSolution(t *testing.T) {
is := is.New(t)
scan := bufio.NewScanner(bytes.NewReader(input))
result, err := run(scan)
is.NoErr(err)
t.Log(result)
is.True(result.valuePT1 < 68834) // first attempt too high.
is.Equal(result.valuePT1, 0)
is.Equal(result.valuePT2, 0)
}