day18: problem 1 solution
This commit is contained in:
parent
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commit
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GPG Key ID:
11230674D69038D4
25
18/Cargo.lock
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25
18/Cargo.lock
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "day18"
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version = "0.1.0"
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dependencies = [
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"itertools",
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]
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[[package]]
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name = "either"
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version = "1.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
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[[package]]
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name = "itertools"
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version = "0.12.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "25db6b064527c5d482d0423354fcd07a89a2dfe07b67892e62411946db7f07b0"
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dependencies = [
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"either",
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]
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9
18/Cargo.toml
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9
18/Cargo.toml
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[package]
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name = "day18"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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itertools = "0.12.0"
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640
18/input
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640
18/input
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@ -0,0 +1,640 @@
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L 4 (#248a72)
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U 3 (#295c13)
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L 4 (#49e802)
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U 5 (#5ff8b3)
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R 3 (#0df642)
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U 2 (#15b973)
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R 5 (#6cfb92)
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U 11 (#4e3cd3)
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L 4 (#422dd0)
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D 5 (#303fe3)
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L 7 (#6225e0)
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D 2 (#58bd63)
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L 9 (#6225e2)
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D 8 (#2b1703)
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L 6 (#422dd2)
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D 9 (#2eb9b3)
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L 2 (#10f270)
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D 10 (#0677b3)
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L 4 (#190450)
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U 11 (#55b4e3)
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L 4 (#361732)
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U 3 (#034663)
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L 4 (#37f902)
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U 6 (#19bb73)
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R 8 (#6e1030)
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U 8 (#4cad93)
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L 4 (#2509d0)
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U 6 (#1e1e61)
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L 5 (#3d3b90)
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U 8 (#28ec81)
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L 2 (#3f9200)
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U 5 (#437871)
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L 6 (#174bc0)
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D 5 (#3b58a1)
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L 11 (#064a60)
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U 5 (#539da3)
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L 4 (#1ea0d0)
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D 7 (#1909b3)
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L 2 (#296a52)
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D 9 (#6780c3)
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L 3 (#296a50)
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U 11 (#356893)
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L 2 (#0eb430)
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U 5 (#019203)
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L 5 (#4eea10)
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U 4 (#436533)
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L 4 (#20aeb0)
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U 4 (#2fb883)
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L 6 (#5046c0)
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U 11 (#392293)
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R 8 (#2567a0)
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U 3 (#57ee03)
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R 12 (#270540)
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U 2 (#358173)
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R 6 (#289e40)
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U 2 (#77b991)
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R 4 (#016c10)
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U 11 (#351091)
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R 2 (#714f90)
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U 6 (#4add71)
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L 11 (#00eab0)
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D 5 (#2f8361)
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L 8 (#192200)
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U 5 (#1416c1)
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L 13 (#775d30)
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U 3 (#3d3d63)
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L 8 (#6e4710)
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U 3 (#28cfd3)
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L 8 (#389880)
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U 5 (#28cfd1)
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L 7 (#4cd750)
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D 5 (#1d56e3)
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L 3 (#2789e2)
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D 5 (#5d7573)
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R 9 (#1b1372)
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D 5 (#1965a3)
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R 4 (#111052)
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D 2 (#5a2861)
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R 10 (#37f1c2)
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D 3 (#0b7ad1)
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R 5 (#012162)
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U 5 (#226f43)
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R 4 (#583cd2)
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D 5 (#4333f3)
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R 5 (#0eb952)
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D 3 (#22a273)
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L 2 (#34c5d0)
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D 3 (#355f11)
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L 5 (#13a460)
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D 4 (#355f13)
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L 6 (#3e2900)
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U 4 (#28d423)
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L 8 (#042432)
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D 3 (#4378f3)
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L 6 (#18a200)
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D 5 (#16a843)
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L 5 (#18a202)
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D 7 (#46fdd3)
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L 5 (#2a4802)
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D 5 (#2a4d23)
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L 5 (#6049d2)
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D 4 (#0a4023)
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L 4 (#09afb2)
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U 4 (#687713)
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L 5 (#4b85f2)
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D 4 (#0e1a53)
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L 8 (#331b60)
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U 6 (#270d83)
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L 6 (#331b62)
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U 6 (#25dba3)
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L 6 (#412e82)
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D 6 (#5e2e73)
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L 8 (#1de802)
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U 6 (#1e7143)
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L 4 (#4e7e82)
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U 3 (#160d63)
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L 5 (#19d230)
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U 3 (#36a4a3)
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R 3 (#19d232)
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U 6 (#4c63b3)
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R 10 (#0d2862)
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U 5 (#0ec351)
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R 11 (#593c62)
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U 6 (#12de21)
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R 2 (#08d482)
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U 4 (#277081)
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R 3 (#10eee0)
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U 4 (#382b91)
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L 4 (#512200)
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U 7 (#1279f1)
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L 3 (#229312)
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U 6 (#422721)
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R 6 (#71ddd2)
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U 6 (#093871)
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R 13 (#0d5622)
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D 5 (#093873)
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R 7 (#4c34e2)
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U 6 (#5b1743)
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R 2 (#4779a2)
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D 6 (#1cc6e3)
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R 7 (#3c13a0)
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U 5 (#3b60f3)
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R 4 (#3c13a2)
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U 9 (#229f83)
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R 3 (#0a6ff2)
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D 2 (#06d231)
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R 8 (#0298b2)
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D 11 (#4eb6a1)
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R 7 (#0298b0)
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U 8 (#438ce1)
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R 7 (#0e69e2)
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U 5 (#2d3e73)
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R 8 (#40b2c2)
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U 6 (#64cb53)
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L 2 (#40b2c0)
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U 3 (#0215c3)
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L 3 (#2cbf42)
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U 4 (#00c523)
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L 7 (#1fc3d2)
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D 4 (#68a633)
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L 5 (#1fc3d0)
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U 5 (#149853)
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L 5 (#2cbf40)
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U 9 (#0b9613)
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L 3 (#1e7f00)
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U 8 (#2fc533)
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L 7 (#3d7180)
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U 3 (#33f3a3)
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R 9 (#66d340)
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U 2 (#0fa1f1)
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R 4 (#0546c0)
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D 6 (#4c00b3)
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R 8 (#483b50)
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U 6 (#4c00b1)
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R 4 (#2fc7c0)
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U 2 (#0fa1f3)
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R 7 (#377280)
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U 6 (#200c43)
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R 5 (#429ef0)
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U 3 (#3a90f1)
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R 5 (#226142)
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U 4 (#2740c1)
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R 5 (#41ac62)
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U 3 (#275423)
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R 2 (#3ba072)
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U 11 (#275421)
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R 4 (#27ea92)
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D 8 (#402001)
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R 2 (#3456c0)
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D 6 (#5a4541)
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R 3 (#4d1400)
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U 4 (#5a4543)
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R 6 (#462de0)
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U 8 (#3fcdb1)
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R 6 (#1f2d90)
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U 6 (#4e7851)
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R 3 (#41eb30)
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D 6 (#4e7853)
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R 4 (#1aa1c0)
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D 10 (#0a4073)
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R 6 (#2134b2)
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D 7 (#164e43)
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R 4 (#200c72)
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D 5 (#3beca3)
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R 6 (#7445e0)
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U 3 (#2cda83)
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R 4 (#7445e2)
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U 3 (#475553)
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L 5 (#200c70)
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U 10 (#23fb33)
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R 5 (#2134b0)
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U 7 (#3c98d3)
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L 4 (#4cfc80)
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U 5 (#0f0e71)
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R 8 (#3c1d22)
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U 10 (#23a311)
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R 6 (#05da32)
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D 5 (#6229c1)
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R 5 (#41f750)
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D 8 (#1f4191)
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R 3 (#3530f0)
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D 13 (#4d3941)
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R 3 (#6215e0)
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D 9 (#2fe911)
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R 6 (#05cf90)
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U 4 (#25c901)
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R 2 (#335232)
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U 12 (#271371)
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R 2 (#335230)
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U 5 (#2bd1d1)
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L 9 (#1ffad0)
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U 6 (#6f6bc1)
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R 9 (#099600)
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U 5 (#13bee1)
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R 3 (#5aa820)
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U 3 (#3546c1)
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R 6 (#4dd5f0)
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D 11 (#495be1)
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R 6 (#60c8e0)
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||||
U 11 (#4bd201)
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||||
R 4 (#367f30)
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D 4 (#43dbc1)
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||||
R 6 (#4bb740)
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U 12 (#07ce11)
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R 6 (#4b4d70)
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||||
D 12 (#3e29e1)
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||||
R 5 (#313fc0)
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||||
U 4 (#293d51)
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||||
R 4 (#1b4860)
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||||
U 11 (#514571)
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||||
R 4 (#5c11a2)
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||||
U 4 (#444841)
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||||
R 8 (#5c11a0)
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||||
U 2 (#3e6c51)
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||||
R 11 (#16dab0)
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||||
U 7 (#26baf1)
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||||
R 2 (#32e240)
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||||
U 5 (#26baf3)
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R 6 (#2f0a70)
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U 6 (#11a821)
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R 3 (#527fc0)
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||||
U 7 (#468b31)
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R 6 (#0641a0)
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U 10 (#20f351)
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R 7 (#547a90)
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U 12 (#1dbf11)
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R 2 (#17d0d2)
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U 10 (#159981)
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R 6 (#634e12)
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U 5 (#4ff021)
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R 10 (#006122)
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D 6 (#6589a3)
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R 3 (#1a74f2)
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D 2 (#19b911)
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R 12 (#3ed5f2)
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D 5 (#28ab31)
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R 3 (#09dd82)
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D 5 (#614c01)
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R 6 (#284d32)
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D 9 (#06b521)
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R 8 (#4dfad2)
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D 7 (#5b0f61)
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R 2 (#0fff22)
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D 5 (#1e6ff1)
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R 2 (#47b352)
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D 9 (#29c291)
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R 5 (#352ef2)
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D 3 (#042d11)
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R 4 (#262542)
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D 7 (#042d13)
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R 4 (#21e8f2)
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D 3 (#18cc21)
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R 3 (#16ed70)
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U 9 (#270ea1)
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R 7 (#4391e0)
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U 9 (#270ea3)
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R 4 (#22bdd0)
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D 3 (#3b72b1)
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R 7 (#1fd4b2)
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D 8 (#01bfe1)
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L 7 (#3d18a2)
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D 7 (#20dac1)
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R 4 (#67d990)
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D 4 (#1acd93)
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L 7 (#017410)
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D 2 (#6e4923)
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L 7 (#10bdd0)
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D 13 (#0650b3)
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L 2 (#072660)
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U 13 (#221151)
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L 6 (#41d720)
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D 3 (#5bc831)
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L 4 (#252450)
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D 9 (#118de1)
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R 6 (#05b1d0)
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D 4 (#247721)
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||||
R 9 (#2b6b10)
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||||
U 4 (#60da41)
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R 10 (#470c42)
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D 3 (#4fdc91)
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R 2 (#470c40)
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||||
D 8 (#189db1)
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L 5 (#4a1f70)
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D 7 (#07e141)
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L 3 (#2524b0)
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D 5 (#2a6ce1)
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L 11 (#1a2e50)
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D 2 (#4f08c1)
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L 3 (#3b7ec0)
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D 9 (#65e011)
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L 8 (#24b9a0)
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||||
D 6 (#196c61)
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L 5 (#540b20)
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D 6 (#243801)
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L 2 (#397ce0)
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D 3 (#411a41)
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L 12 (#397ce2)
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D 2 (#526d51)
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||||
L 2 (#5b5810)
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D 5 (#2e96d3)
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L 8 (#6c4f80)
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||||
U 6 (#274453)
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L 3 (#077010)
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U 5 (#37f603)
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R 5 (#73bf92)
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||||
U 4 (#29ee73)
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||||
R 11 (#5ffd40)
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||||
U 5 (#3e12d3)
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||||
L 4 (#4b4e32)
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||||
U 12 (#114e01)
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||||
L 2 (#45d0b2)
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||||
U 4 (#114e03)
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||||
L 6 (#4b8b02)
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||||
U 9 (#3eff03)
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||||
L 4 (#6968d0)
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U 4 (#3d4d33)
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L 6 (#1dd0e0)
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D 2 (#436023)
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L 9 (#58b812)
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||||
D 6 (#423003)
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L 7 (#2e81a2)
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D 3 (#3d9e13)
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L 11 (#305450)
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D 6 (#2667f3)
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L 7 (#3a8470)
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D 8 (#293191)
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R 3 (#207ee0)
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D 4 (#293193)
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R 3 (#2c4360)
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D 4 (#2667f1)
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R 7 (#250ee0)
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U 4 (#70e1c3)
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R 4 (#2907d0)
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D 6 (#0b69a1)
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R 6 (#3babc0)
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D 6 (#7698c3)
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R 2 (#2752c0)
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D 3 (#7698c1)
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L 4 (#2dc550)
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D 11 (#4ec121)
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L 8 (#199d00)
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U 11 (#33f261)
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||||
L 7 (#3b4e30)
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D 5 (#24e991)
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||||
L 6 (#0aaeb2)
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U 9 (#15a993)
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L 5 (#59ed02)
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U 2 (#15a991)
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L 5 (#2c0432)
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U 10 (#337e81)
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L 7 (#248670)
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D 2 (#511d31)
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L 3 (#52ebc0)
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D 13 (#511d33)
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L 4 (#192db0)
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D 7 (#3dcf11)
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L 2 (#285030)
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D 3 (#15acc1)
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L 6 (#3a6c70)
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D 5 (#36f281)
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L 4 (#44fd02)
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U 5 (#4e8821)
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L 4 (#473972)
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U 5 (#2ab9f1)
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L 8 (#60aaa0)
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U 5 (#35c651)
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L 3 (#4736b2)
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U 10 (#4741d1)
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L 3 (#1973f2)
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U 5 (#1b5031)
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||||
L 3 (#3c6532)
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D 5 (#49bd31)
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||||
L 4 (#5e3f60)
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||||
D 3 (#4a2011)
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||||
L 4 (#2ba190)
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||||
D 6 (#4a2013)
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||||
L 3 (#653430)
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||||
D 7 (#10dda1)
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L 11 (#2532d2)
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D 3 (#675311)
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L 4 (#27d642)
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D 6 (#02cae1)
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L 10 (#466652)
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D 7 (#34cef3)
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R 3 (#263692)
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||||
D 7 (#34cef1)
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R 8 (#2c59d2)
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||||
D 5 (#31afe1)
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L 8 (#091562)
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D 5 (#12c861)
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R 4 (#47a772)
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D 5 (#68a5b1)
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L 7 (#1f79a2)
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D 4 (#3b3c13)
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||||
R 10 (#0e7122)
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||||
D 4 (#087363)
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R 4 (#3e26c2)
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U 13 (#4953f3)
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||||
R 3 (#5ac862)
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||||
U 3 (#4953f1)
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R 3 (#13cfe2)
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||||
D 5 (#087361)
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R 11 (#57f7a2)
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||||
D 4 (#3b3c11)
|
||||
L 11 (#6dcb32)
|
||||
D 7 (#35e653)
|
||||
R 6 (#525282)
|
||||
D 5 (#3dac93)
|
||||
R 9 (#377082)
|
||||
D 6 (#2afda1)
|
||||
R 10 (#3e6422)
|
||||
D 10 (#220471)
|
||||
R 10 (#37ebf2)
|
||||
D 2 (#4d0213)
|
||||
R 5 (#2fa2f2)
|
||||
D 4 (#30df53)
|
||||
R 5 (#617e00)
|
||||
U 6 (#536393)
|
||||
R 5 (#496510)
|
||||
D 6 (#5f6733)
|
||||
R 4 (#3bf9b0)
|
||||
D 3 (#5f6731)
|
||||
R 4 (#48d940)
|
||||
D 3 (#35a5d3)
|
||||
R 4 (#284a82)
|
||||
D 9 (#445b23)
|
||||
L 4 (#2535c2)
|
||||
D 4 (#3f8b43)
|
||||
R 2 (#41a002)
|
||||
D 7 (#20b143)
|
||||
R 3 (#63ae42)
|
||||
U 8 (#328b03)
|
||||
R 9 (#383210)
|
||||
U 3 (#1ce143)
|
||||
R 7 (#383212)
|
||||
U 6 (#2ed603)
|
||||
R 5 (#00c512)
|
||||
U 6 (#6dea43)
|
||||
R 6 (#00c510)
|
||||
U 7 (#0f0643)
|
||||
R 3 (#4292a2)
|
||||
U 7 (#684961)
|
||||
R 3 (#03de80)
|
||||
U 5 (#46e0b1)
|
||||
R 6 (#3d4ae2)
|
||||
D 5 (#1d5fc1)
|
||||
R 7 (#3d4ae0)
|
||||
U 13 (#470ab1)
|
||||
R 5 (#03de82)
|
||||
U 4 (#282c71)
|
||||
R 6 (#5520f2)
|
||||
D 5 (#2f0981)
|
||||
R 2 (#5520f0)
|
||||
D 12 (#4081a1)
|
||||
R 6 (#22a272)
|
||||
U 5 (#284c53)
|
||||
R 8 (#081202)
|
||||
D 5 (#0b7831)
|
||||
R 4 (#3e4552)
|
||||
D 13 (#0b7833)
|
||||
R 5 (#38e092)
|
||||
U 11 (#284c51)
|
||||
R 2 (#550082)
|
||||
U 2 (#175033)
|
||||
R 6 (#036dc2)
|
||||
D 3 (#068791)
|
||||
R 9 (#3ff6f2)
|
||||
D 5 (#4a5783)
|
||||
R 13 (#4d5f92)
|
||||
D 6 (#3e3423)
|
||||
L 12 (#4f62d2)
|
||||
D 7 (#5e4363)
|
||||
L 3 (#0f7032)
|
||||
U 7 (#285261)
|
||||
L 12 (#4ea392)
|
||||
D 5 (#4c2dc1)
|
||||
L 4 (#0d2822)
|
||||
D 5 (#4c2dc3)
|
||||
R 9 (#518da2)
|
||||
D 2 (#41b3b1)
|
||||
R 7 (#023270)
|
||||
D 3 (#13d6e1)
|
||||
R 11 (#0874c0)
|
||||
D 3 (#2026c1)
|
||||
R 4 (#68f3a0)
|
||||
D 7 (#2026c3)
|
||||
L 8 (#208470)
|
||||
D 4 (#09bd81)
|
||||
L 3 (#193a10)
|
||||
D 7 (#5f3491)
|
||||
L 4 (#08cad2)
|
||||
D 10 (#068793)
|
||||
L 10 (#48acb2)
|
||||
D 4 (#20e341)
|
||||
L 7 (#6137a2)
|
||||
D 8 (#20e343)
|
||||
L 7 (#0bf292)
|
||||
D 7 (#5b5f13)
|
||||
L 8 (#2b2532)
|
||||
D 3 (#034073)
|
||||
L 5 (#3c7bb2)
|
||||
D 11 (#09c643)
|
||||
L 3 (#0d6e52)
|
||||
U 3 (#569d23)
|
||||
L 5 (#63fed0)
|
||||
U 4 (#162193)
|
||||
L 4 (#2eb310)
|
||||
U 3 (#655e23)
|
||||
L 10 (#42f8e0)
|
||||
U 4 (#341983)
|
||||
R 14 (#3dbbc0)
|
||||
U 5 (#551b13)
|
||||
L 5 (#2a94f0)
|
||||
U 6 (#05ae53)
|
||||
L 2 (#09db90)
|
||||
U 5 (#2c9e13)
|
||||
L 8 (#4c6d10)
|
||||
D 10 (#40ffb3)
|
||||
L 3 (#306c30)
|
||||
D 2 (#338911)
|
||||
L 6 (#4bed00)
|
||||
D 7 (#338913)
|
||||
R 7 (#12aae0)
|
||||
D 4 (#459613)
|
||||
L 7 (#75d3a2)
|
||||
D 7 (#37ad61)
|
||||
L 6 (#6dcf92)
|
||||
D 4 (#3b7703)
|
||||
R 9 (#0ee2b2)
|
||||
D 4 (#514c13)
|
||||
R 6 (#0ee2b0)
|
||||
D 3 (#2863b3)
|
||||
L 8 (#52eee2)
|
||||
D 8 (#2fc771)
|
||||
L 7 (#5be782)
|
||||
D 4 (#2f39a1)
|
||||
L 6 (#5be780)
|
||||
U 4 (#5625b1)
|
||||
L 2 (#5588c2)
|
||||
U 14 (#37ad63)
|
||||
L 3 (#0681e2)
|
||||
U 4 (#085481)
|
||||
L 3 (#037432)
|
||||
U 12 (#31ed51)
|
||||
L 4 (#6791e2)
|
||||
D 5 (#3546d3)
|
||||
L 6 (#4419e2)
|
||||
D 10 (#3546d1)
|
||||
L 4 (#2c1a72)
|
||||
D 10 (#5bead1)
|
||||
L 3 (#3b3252)
|
||||
D 9 (#3390c1)
|
||||
L 3 (#1d78c2)
|
||||
D 5 (#488d71)
|
||||
R 10 (#244042)
|
||||
D 2 (#10d1e1)
|
||||
R 5 (#3fd582)
|
||||
D 5 (#5025a1)
|
||||
L 3 (#381b70)
|
||||
D 11 (#771831)
|
||||
L 7 (#2abf50)
|
||||
U 11 (#17be81)
|
||||
L 5 (#1eb3c0)
|
||||
D 5 (#3d9c61)
|
||||
L 5 (#5f4de2)
|
||||
D 8 (#278361)
|
||||
L 2 (#2b95b2)
|
||||
D 9 (#2cb0b1)
|
||||
L 4 (#4a0182)
|
||||
D 6 (#2c6bb3)
|
||||
L 2 (#499642)
|
||||
D 5 (#4c76d3)
|
||||
L 8 (#2fe412)
|
||||
U 9 (#07b893)
|
||||
L 2 (#236d52)
|
||||
U 8 (#3956a3)
|
||||
L 7 (#34f252)
|
||||
U 3 (#52bbf1)
|
||||
L 7 (#189470)
|
||||
U 4 (#54b661)
|
||||
L 9 (#189472)
|
||||
U 7 (#0110f1)
|
||||
L 3 (#409bf2)
|
||||
U 3 (#46d3e3)
|
||||
L 5 (#4c0f82)
|
||||
U 11 (#215e73)
|
||||
L 4 (#4c0f80)
|
||||
U 7 (#4050f3)
|
||||
L 9 (#39b192)
|
||||
U 7 (#28b043)
|
||||
L 3 (#011270)
|
||||
U 7 (#1f6693)
|
||||
R 7 (#73c390)
|
||||
U 2 (#2c4113)
|
||||
R 5 (#0321c0)
|
||||
U 8 (#2f2903)
|
||||
L 12 (#5ab560)
|
||||
U 3 (#4dd983)
|
||||
L 6 (#38b7d2)
|
||||
U 12 (#03c8c3)
|
||||
312
18/src/main.rs
Normal file
312
18/src/main.rs
Normal file
@ -0,0 +1,312 @@
|
||||
use itertools::Itertools;
|
||||
use std::collections::{HashMap, LinkedList};
|
||||
use std::fmt::{Display, Write};
|
||||
use std::fs::File;
|
||||
use std::io::{BufRead, BufReader, Lines};
|
||||
use std::ops::Range;
|
||||
use std::time::Instant;
|
||||
|
||||
// BOILERPLATE
|
||||
type InputIter = Lines<BufReader<File>>;
|
||||
|
||||
fn get_input() -> InputIter {
|
||||
let f = File::open("input").unwrap();
|
||||
let br = BufReader::new(f);
|
||||
br.lines()
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let start = Instant::now();
|
||||
let ans1 = problem1(get_input());
|
||||
let duration = start.elapsed();
|
||||
println!("Problem 1 solution: {} [{}s]", ans1, duration.as_secs_f64());
|
||||
|
||||
let start = Instant::now();
|
||||
let ans2 = problem2(get_input());
|
||||
let duration = start.elapsed();
|
||||
println!("Problem 2 solution: {} [{}s]", ans2, duration.as_secs_f64());
|
||||
}
|
||||
|
||||
// DATA
|
||||
|
||||
#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash)]
|
||||
enum Direction {
|
||||
Left,
|
||||
Right,
|
||||
Up,
|
||||
Down,
|
||||
}
|
||||
|
||||
impl Direction {
|
||||
const fn all() -> &'static [Self; 4] {
|
||||
&[
|
||||
Direction::Left,
|
||||
Direction::Right,
|
||||
Direction::Up,
|
||||
Direction::Down,
|
||||
]
|
||||
}
|
||||
const fn opposite(&self) -> Self {
|
||||
match self {
|
||||
Direction::Left => Direction::Right,
|
||||
Direction::Right => Direction::Left,
|
||||
Direction::Up => Direction::Down,
|
||||
Direction::Down => Direction::Up,
|
||||
}
|
||||
}
|
||||
const fn offset(&self) -> (isize, isize) {
|
||||
match self {
|
||||
Direction::Left => (-1, 0),
|
||||
Direction::Right => (1, 0),
|
||||
Direction::Up => (0, -1),
|
||||
Direction::Down => (0, 1),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<&str> for Direction {
|
||||
fn from(s: &str) -> Self {
|
||||
match s {
|
||||
"L" => Direction::Left,
|
||||
"R" => Direction::Right,
|
||||
"U" => Direction::Up,
|
||||
"D" => Direction::Down,
|
||||
s => panic!("{} is not a valid direction", s),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<&Direction> for char {
|
||||
fn from(dir: &Direction) -> Self {
|
||||
match dir {
|
||||
Direction::Left => '←',
|
||||
Direction::Right => '→',
|
||||
Direction::Up => '↑',
|
||||
Direction::Down => '↓',
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
struct DigInstruction {
|
||||
dir: Direction,
|
||||
count: usize,
|
||||
color: String,
|
||||
}
|
||||
|
||||
impl From<&str> for DigInstruction {
|
||||
fn from(s: &str) -> Self {
|
||||
let mut parts = s.split_ascii_whitespace();
|
||||
let (dir, count, color) = (
|
||||
parts.next().unwrap(),
|
||||
parts.next().unwrap(),
|
||||
parts.next().unwrap(),
|
||||
);
|
||||
Self {
|
||||
dir: dir.into(),
|
||||
count: count.parse().unwrap(),
|
||||
color: color.into(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct DigPlan {
|
||||
instructions: Vec<DigInstruction>,
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
struct DigTile {
|
||||
position: Position,
|
||||
depth: usize,
|
||||
color: String,
|
||||
}
|
||||
|
||||
impl Default for DigTile {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
position: (0, 0),
|
||||
depth: 0,
|
||||
color: "000000".into(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type Position = (isize, isize);
|
||||
|
||||
#[derive(Debug)]
|
||||
struct DigHole {
|
||||
tiles_loop: LinkedList<DigTile>,
|
||||
tiles_map: HashMap<Position, DigTile>,
|
||||
x_range: Range<isize>,
|
||||
y_range: Range<isize>,
|
||||
}
|
||||
|
||||
impl DigHole {
|
||||
fn new() -> Self {
|
||||
DigHole {
|
||||
tiles_loop: LinkedList::new(),
|
||||
tiles_map: HashMap::new(),
|
||||
x_range: 0..0,
|
||||
y_range: 0..0,
|
||||
}
|
||||
}
|
||||
fn pos_offset(&self, pos: Position, offset: (isize, isize)) -> Position {
|
||||
(pos.0 + offset.0, pos.1 + offset.1)
|
||||
}
|
||||
fn run_plan(&mut self, plan: &DigPlan) {
|
||||
// start position is 1m deep
|
||||
let mut cur_pos = (0, 0);
|
||||
let (mut max_x, mut max_y) = (0, 0);
|
||||
|
||||
self.tiles_loop.push_back(DigTile {
|
||||
position: cur_pos,
|
||||
depth: 1,
|
||||
color: "000000".into(),
|
||||
});
|
||||
for i in &plan.instructions {
|
||||
println!("instruction: {:?}", i);
|
||||
for _ in 0..i.count {
|
||||
println!(" cur_pos: {:?}", cur_pos);
|
||||
cur_pos = (cur_pos.0 + i.dir.offset().0, cur_pos.1 + i.dir.offset().1);
|
||||
(max_x, max_y) = (
|
||||
std::cmp::max(cur_pos.0, max_x),
|
||||
std::cmp::max(cur_pos.1, max_y),
|
||||
);
|
||||
self.tiles_loop.push_back(DigTile {
|
||||
position: cur_pos,
|
||||
depth: 1,
|
||||
color: i.color.to_owned(),
|
||||
});
|
||||
}
|
||||
}
|
||||
// 2d vec dimension is (max_x+1, max_y+1)
|
||||
for tile in &self.tiles_loop {
|
||||
self.x_range.start = std::cmp::min(self.x_range.start, tile.position.0);
|
||||
self.x_range.end = std::cmp::max(self.x_range.end, tile.position.0 + 1);
|
||||
self.y_range.start = std::cmp::min(self.y_range.start, tile.position.1);
|
||||
self.y_range.end = std::cmp::max(self.y_range.end, tile.position.1 + 1);
|
||||
self.tiles_map.insert(tile.position, tile.clone());
|
||||
}
|
||||
println!("{}", self);
|
||||
self.fill_at(self.find_first_inside().unwrap());
|
||||
}
|
||||
fn fill_at(&mut self, pos: Position) {
|
||||
println!("filling at {:?}", pos);
|
||||
let mut to_fill = vec![pos];
|
||||
|
||||
while let Some(fill_pos) = to_fill.pop() {
|
||||
if self.tiles_map.contains_key(&fill_pos) {
|
||||
continue;
|
||||
} else {
|
||||
self.tiles_map.insert(
|
||||
fill_pos,
|
||||
DigTile {
|
||||
position: fill_pos,
|
||||
depth: 1,
|
||||
color: "000000".to_owned(),
|
||||
},
|
||||
);
|
||||
}
|
||||
for new_pos in Direction::all()
|
||||
.iter()
|
||||
.map(|dir| self.pos_offset(fill_pos, dir.offset()))
|
||||
.filter(|pos| !self.tiles_map.contains_key(&pos))
|
||||
{
|
||||
to_fill.push(new_pos);
|
||||
}
|
||||
}
|
||||
}
|
||||
fn find_first_inside(&self) -> Option<Position> {
|
||||
for y in self.y_range.clone() {
|
||||
let mut inside = false;
|
||||
for x in self.x_range.clone() {
|
||||
if self.tiles_map.contains_key(&(x, y)) && (!self.tiles_map.contains_key(&(x - 1, y)) || !self.tiles_map.contains_key(&(x+1, y)))
|
||||
{
|
||||
inside = !inside;
|
||||
}
|
||||
if inside && !self.tiles_map.contains_key(&(x, y)) {
|
||||
return Some((x as isize, y as isize));
|
||||
};
|
||||
}
|
||||
}
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
impl Display for DigHole {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
for y in self.y_range.clone() {
|
||||
for x in self.x_range.clone() {
|
||||
f.write_char(if (x, y) == (133, -267) {
|
||||
'*'
|
||||
} else if self.tiles_map.contains_key(&(x, y)) {
|
||||
'#'
|
||||
} else {
|
||||
'.'
|
||||
})?;
|
||||
}
|
||||
writeln!(f)?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: BufRead> From<Lines<T>> for DigPlan {
|
||||
fn from(lines: Lines<T>) -> Self {
|
||||
Self {
|
||||
instructions: lines
|
||||
.map(|line| DigInstruction::from(line.unwrap().as_str()))
|
||||
.collect(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// PROBLEM 1 solution
|
||||
|
||||
fn problem1<T: BufRead>(input: Lines<T>) -> u64 {
|
||||
let plan = DigPlan::from(input);
|
||||
println!("{:?}", plan);
|
||||
let mut dig = DigHole::new();
|
||||
dig.run_plan(&plan);
|
||||
println!("{}", dig);
|
||||
dig.tiles_map.iter().count() as u64
|
||||
}
|
||||
|
||||
// PROBLEM 2 solution
|
||||
fn problem2<T: BufRead>(input: Lines<T>) -> u64 {
|
||||
0
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use crate::*;
|
||||
use std::io::Cursor;
|
||||
|
||||
const EXAMPLE: &str = &"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)";
|
||||
|
||||
#[test]
|
||||
fn problem1_example() {
|
||||
let c = Cursor::new(EXAMPLE);
|
||||
assert_eq!(problem1(c.lines()), 62);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn problem2_example() {
|
||||
let c = Cursor::new(EXAMPLE);
|
||||
assert_eq!(problem2(c.lines()), 0);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user