Move Day 6 to its own crate

2022/day6/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "day6"
+version = "0.1.0"

2022/day6/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "day6"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

2022/day6/input.txt

@@ -0,0 +1 @@
+rdzrddbgdbbqtbqbrrznznjzjjctcbtttrvrwwsvwssjfjcjnjzzqgzgzsggfddvnnrbbwgwfwgfgpgrprgrprmmqjmqmvmlmmgjmmgqmqppqgqlqmllszsmzzwfzfqzzgcccmggvfgvvzlvzlznnjfjsscrsrprcrscsqsfqfggrrhccpnpwphwhchfhtfhttzpzwzjzqzjjqjdqqnvqnqjqbqcbqccdllbcblbjljgjbgbhhgphghjhrrvbrvbrvvfggwbwnnghgwhhpbpgphpnpgpqqzvqzqtzzngzngnjnnffgbgbvvjvqvwwqnwqnnvrnnfgfttcftcfczzpbbdlbdbhbssrggtfgfbgfgfnffqsfqfcqqqwvvqpphfpfcfrrjmjhjrjbblcbbznzwwpbwwsvvwnvvzjvzzmllrpllqffplpwlpwwlpwwmnmrrlggvssjggdjjsffbtthlhsswvwjjbtbjbsswqsshppddcjjlrlttwgtwwcnwcncmcpmpnnhndnccqscqqzqpplglvvpggcvvhnhmhqqsvvhcvvjpphbhnndpdbdndjnnmccmjmhmrrlcrrfzfnndldffstffhqffhcffhbhwhzhnhrhprhhtqtztntnptnppjdpdqdzqqpzprrqbqmqhmqqmhqqjttlrrqbqnqdnnrqqtqfqjjdfjfdjjsnspptltlgttmctcgttcthcttdpppzphpnhhvthtccbvccpplpwwfgwfffhfbbrsbbgppnhpnhhwnnnrprcpcncffrqqpjprpddjnddnccqtcthhfqfnnnlrrzhhmvvczzlbzbrzbbjpjpbbjttmwtwbtbqqtssgdsdsmsmbsmsfftltmtwwsswbwdbdwbbblgbbqpbqbmbgmbgmbbvcvbbmrrldlpdpqqnvvrzzcddjsdjjfvjvvndnvvrsvrsvrsrmsswlswlssqllfmlffmwmttjgttzgtggghrhprppbgbdgdtgddvmdvvbmmchhjppczzglzglzglzgggsmsrrsttgddmvvhddvdhvvcfcvvglvlmvmdvmdvdcdvvgfftccljllmssrvvqhvvnlnplnlglrlvrvfvrrgjjzqjjzcjcvcsvvbppgrrbdrdsrddqsspwssdlltlcttgngzglgfgzfzhfzhfhnffmsspvsscjjrbbpgbbfgbffhggzpznzmnmcmzmdzmzjzddcsscgssdnddjbdjdtdzdwwshwhfhtthjhsjjfjvvdnnmzmtmmlrlblzzmmspsnpnbnvvczvzsszrrsgsbsrrlprrzfrrjdrdbdhdvvwrvvrfvrrvwrrqlqwwqjjpwwffdvffwfbwwdrwdrddhhhjghjhvhccgbcbvblllbwlwtlldbdzbbdpbbqmmglmllvwwzmzhhfnfcnfcfddvrvhvbvzvbvhvthtrtppsccggdgpghgfhhhnwnmmwfwtffpjfppmdpdhppvwvfvvhdhzhtzhtzzplpspmpnpzpgzgqgvvqcqcqmqffzszwzfwfzzcmchhmgmppgwwvffnnvhhttvtjvjgjljmmfcmmzmvvjfjggppqmpqqswsnwwdvwdvwdwjwrrrtprpqrrsddsshgssbbpbgpbbprprzppsnsbszszccddfcftcfczffchfcfjjffjwwsbbvfvpfprpbczqdnvrqrlhsrzvlvgzbqpwgpmgftzfvtlnlqrtmpjfstmsrbfjldtmhvvqwznrcflbvmsnbzcrjvbzgvvmwlzcwggwvhnpscnwhjldzjvmtfdgvptfhjtdtwfjntzqtswqgwvnfgqhqpdvdchfqjzfhgjmdstmchppcvgpdfrqbrhrvdvzbtnnrpqsnmnljjzgzqfnzmlvbzmwzfbfszvfsqdnqfstpjglwtcdjpmdfqzfcsngbcvvjvdzlnzndcggcdtdjpwgvfzlfdqpgbgfjjfvgtwwrgtrfcpfvmzvrwrftpfdprzmcmrpnjpfrdvbmlrfzrjcdzhvwbpgmbpdnqggjdpqttgnqbtjfmrglqbvcfjwghrqtcgjddhwpntjgtghmfgvjdhbzzgmfnrrrgvdmsfbhndfcwlbbtsdcbpgfpbvnwmpwdpjlvcbcgnwjzftsfqhvwdshzltrmqpcsngfzrvfwhffrcjzlfqjqdbcntdwhfrfnrzwftqhlfjpjqpngjqjcnfnrpmmbprdtzgsvsdjpzsnzzmzdfjplfhzqrnrwggcvrrmqzwlvslwvtvhbgwmjmnzftrbfhdrzszcvmdhgfvwgwgsgqtpwgvpvfrszczmsmstwhnhtnftmmmjblpchrnrdwlnhrvqtbwqwdchfjbcldmjmjzwlcngfgfvmblgmnwtwvjmzswzmpvdjtcfgcpvvqhrfnwcczrrrhwwvfrngwmlstqcvvrqrshwdvrgtgbffvlwtvwhvlcwwqgspnfmndbsbpvdbjwdlfntwrrmtgsdtwbfmjjcjfvsvltwdjmvswwpchpdtsjmbbgcgtddcbprwznsldmwflrgcrgfflzwllrzcrgdgqgsvrqmspqzsrzvppztrhlpsnqdlhmghdcrppvbljsnrjgcwhpvmlgcnswrjjbjltwnctqbqsffbcfpclhcbrnsjlmrstpngbvcfcbjstgvzwfgcsqbwgqqblsnmfddprrqmpqgfrjbhfptrdvltcrmtrcqgcdfpjhjptzngzqdghqhpsfwlmrwgfhldzpfrbtzzgsblcfmwztjmtjzgwrpttvwfhbntvsgnfvbpfpnscdspmcvncsqltzqnwczvdbtphwrdtjcszmhbpcfnvbrbgfpnrrhvhzlrglthpldrlfscpvpvttvjtfdrqpjvnwvmscdvclbnzfvppslzgmglrvvdvpsbsfhflnjbdnpqzjzlrfgwgjvwvpthjptftlzppmnmrrpfvdhgwfzfdnnbhqpwrzvvdgtcrflwfjgbmvbgsnqzqtmsvrdlfmlbqqdnfftljbtphnpqqrgbrlzrbbhlgvjpcdbmtvzlpqhbvjpmhpdmtrmjwvzrbfrdrdfmwsfvllljdwmnqlgcnzvpphwmlmstcsljvmljcjprtgmzfssgbtjlttssfzbcqbgnjnvrwzchtwtwdtfwngdflwzjrhzdlrrqfnsztvdbzqfwfzppqrghrhzsqtwqstsfspddpjrpffhgqvspzwmlzwhtzqqldqbwlsrqhlmvhhmzjpdsrgdcvqnfpldnmblgvvssrcdnjqvcgwtwmhqdcwtsqqhbntvjnlbljlqjqglggvpqncpdzztlvhhlghtrncfcdhjtzwjqdhlntjfrzccbnmglmnzwvplclvcmnsppqjhbggbzncqlcfnzbbzdjrvcdthcqwjzjvdbjddcbjchwfgbjhwqpzbpgsdtlwlphtvhwddjdbwbpsnqhnffqptcrljcqzzhszdfpdfsgflhwwsgbfcnwrbdqflnrcwddwwmfztlbswlzhtzzcllnvbtqgjsdzmhcpnnqpdpqgdntlfwgvddgqvhqhrbvstsmzrmgwslpdjlsbgthfhgnlftbqdnzsvcrrmllcjvdlqrzbvrbrjcbpttsvwcrnlvvbnjvfgldzmtflvmzqdgbnjcgctllrldgzltwlswmfbbwjmcqpldhhdsmqpbvnjprdqnvrbjhrjzqwqfrfqwngwtwjjmzdbqmpmvqrprjhnhnrlmlgpfwwzjhlgmbzdlpshcqpnlgrqvprbspmdznzzsvhdlzwmttpdnlrlqjllqnshjllvvsrblscjcmbcqlsgpcjlmmpgwrvjnjzvzfgvgghwqfjswjbjghmzcgdpsjwhbnzmbhtzgnchpbrmnfdbfscgzldpqmvprjpvcwtwdfjblfshffwqctdphhnhngsjlrqtqprpjhwqcbmhctqbpdtpzvbbfncfrcvmbfvqmbmqjvgtdvspfqfbqnmjwhzbcpcfgbhtllbsssqntfbmsmlwhjchgcsrvsfznbmspwwszqfnwzzljfnvcwnwmgfzqfvmwwwdjd

2022/day6/src/main.rs

@@ -0,0 +1,48 @@
+use std::collections::HashSet;
+use std::env;
+use std::fs;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    let filename = args.get(1).expect("Missing filename argument");
+
+    let file_contents = fs::read_to_string(&filename).expect("Unable to read file");
+    let character_stream: Vec<char> = file_contents
+        .lines()
+        .map(|l| l.chars().collect::<Vec<char>>())
+        .flatten()
+        .collect();
+
+    let (sop_offset, start_of_packet_marker) = character_stream
+        .windows(4)
+        .enumerate()
+        .find(|(_, w)| HashSet::<&char>::from_iter(w.iter()).len() == 4)
+        .expect("Couldn't find start-of-packet marker");
+
+    let (sow_offset, start_of_window_marker) = character_stream
+        .windows(14)
+        .enumerate()
+        .find(|(_, w)| HashSet::<&char>::from_iter(w.iter()).len() == 14)
+        .expect("Couldn't find start-of-message marker");
+
+    println!(
+        "Part 1: Start-of-packet message is ‘{}’ at offset {}",
+        start_of_packet_marker
+            .into_iter()
+            .map(|c| c.to_string())
+            .collect::<Vec<String>>()
+            .join(""),
+        sop_offset + 4
+    );
+
+    println!(
+        "Part 2: Start-of-packet message is ‘{}’ at offset {}",
+        start_of_window_marker
+            .into_iter()
+            .map(|c| c.to_string())
+            .collect::<Vec<String>>()
+            .join(""),
+        sow_offset + 14
+    );
+}