complete day 6

8 files changed, 67 insertions, 0 deletions

diff --git a/day06b/Cargo.toml b/day06b/Cargo.toml
new file mode 100644
index 0000000..61dface
--- /dev/null
+++ b/day06b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day06b"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { version = "3.2.20", features = ["derive"] }
+itertools = "0.10.5"
diff --git a/day06b/examples/input.txt b/day06b/examples/input.txt
new file mode 100644
index 0000000..636557c
--- /dev/null
+++ b/day06b/examples/input.txt
@@ -0,0 +1 @@
+gzbzwzjwwrfftfrrbvvcbcvcffpssvhhzfzbfzzrbrtrcttnthnhsnhsnnclcpctpprwwgppppchhvvctvtsvswwcdcrrdzdhzdzvddvfvfjjlldvvfllfhlfhlhghnhghrgrsggvbbhdhffzggmttjqtjjgljjwtjwjggldlzzrfrpppjsjggqrrdbbgwgtwwwtqwtqqvccjnnhrhqqsnssjbssmjjbzjjqnqnlnjncjjzzqddfqqqnqvnqncqqmsshqqccssvpvllbbfvfmmmgzgdggtjgjtjbttngtnnhhfrfddmtmtftcftthvttwzwrzrbrgrbrqbqccmmtvtqvtqqzmzwmzzzsvzvhhhqlhqlqplpggvmvwmmshhnshsjszzljlnlrnllgddqllpmllsgswwqnqlnlqqlmqqvrqvrqrppvrrqwqhqllgjgcggsllqgllghlghhbvhhcvvbddvcvwwwzdzzfjjvcczbbwccjvccmvmfvfgfmfttwrttpmtmsszccjggcssmqsmsgszzfpphghvgvvcddtltwlwnnrbbfdbbtssrvvmwwjfflmlblwlrlmlwwhrhnhqnnvdvllzblzzndzdlzzhpprbrprnrzrjjlnlnrrjddgrrwrttcstsgshszzvgvfvpfpqfpfbpbfbwbmmzvvnnqvvqppzspzpzplldqlqsqlldmlmgmcmwmsmfsfzfdzzbpzzbbcwbbtppphlhshchjjszztctpprqppszzchcqczczddscsrstsntstjsjqjjfggvccgbggqhghrhppdldnlndnpddllgplgppnlpnnmwwglghhftfrtrqtqsszrssfjjzhzfhfssflfslsmmgrrcdrdnrdnnqznndrrbtrrmhrhbhsbsgsnslsqlqnncpccplpldpldppshsdssqdsqdsqdsdsdfsddchczhczcszcscffzhfzffpbbgttdhthnhnjnwnnwrrmwmlljzlzlzdzrrcvcbbsfstfsfnfqftqffgjfjzfjfsjswswccsvcvlccshhjpjcccnfnqqmsqmmrwmwjwswgsgjsjttmjmjttpqtqwttgmgfmmnbnrnpnwppgspggwnwqnqpqmmbmmnwnllbwwdqqzsqqtgttnrtrllcwcchpchcbhbpbnpbpsptpvtvzvrzzslljddjzjjmqmmdpmddcdzzrdrqddtctppwzzwrzrvzrvrzzjtztqqsmmcncllhmlmpmhgsrtrzjhjbtfvhmzpssfbjwcdshthnmmqmfhlhwcbbllwzbwfgfvzjcqblchzqqqgcgmpnbnnblhbcpgmvsbvtcmhsghldlhqlghgtpdvjflmjsmppdsvrjlwvhmwsmfvvdnzpmtfqjqpjdctnnrlfjfvdtmvdmhsczlfsqwfrqtlqwnzdzrcdzmhvrgwnjjtqjrqljhgcffglvhnsdssqdpfrfhtjwlqzvfjmpjnqhsjvndtstqjsqgcmgqdjvfqnlmtjlvcblndprmffrgqdnnncnlfflclgqbjbmsdqsjrmzpwtbqqqqsqmgthhjfqwzvcbqwlvdbffhcvncpldmchnptbnlbhmzrrjhzvzdrvtlhsnfnfdnvhlrlrmdcpnmvdwswctcqldszlvftqtwldrhmfjmfvcgjcdjsbjqjwdtslblwhqfvgrfcpnhszqqsfwbwcmvfvccvztdmcjqfjvdvmbdtcjvtwqpwsqjtdvpvvvsdrrvngmjztgjtnpdbmtlrbrjlwsdnthgzgpssgbzzrqvgblqhrtfbflnphvhpzmdfrwqvjjvcpsmdrqwdbzlpnqpmglgqzfhctrzdpzdthqgjtvpwcrlsmqnjwgzlnqbthvfswhjtrrsrswhbmnddgzmznvppbnmtjpzpdpmpzpmsgfstzldgmrtgplwwsbztphtcvdfgsqzqwrmlqpnhvpcqpfjpbrthrtwgqlfnrqcrpvhssjmhfgpnzzvlrlcbnpmddhtdvvfrrvprqrwbhfgvvltgrhrpwsdgvrlgthbztcgcfggtcfzqtlcdhpmcvpgcszslhpfrttnrdrqpqlgdfwtccmbhfrnlbhhmrtrjmzstbqhmtphzcpcllzsnghfvlwvzzvlqrjmfsvhrnjnvldgnbqvpjsmmphhrmhqrtcncmjwbdlqtrvmhgjrjsrddcpqnjhfmczfgwzspnrjfwvfdpdlcfpvctfrlspdwwlnpbvbglzsmgfsmrshsqgcvlfrvjssrglbwvvvgpvtqshbtqmzbnglflhhldtfzqssptrbnnzdqwqtstpftdqgmmhfjdlfwtmcmtmcgcvtfhzvsbllgbchvlhrgnvvbsnrwqrlvdqlcwwlgbjrvrzgcvljqzvdngtbhpnppjrzpmbwztzvnvrbfccfgvnqvrcmpdblngcvlwjwzpbbwmnslsdjmbrwbvnjsgcmsfvzvnwbzrrlzvgdnzcqqgggvmcwczjqnrddnzhlndgzjbvtbtjqdnlvlflqnfvjdmfstpdfqsgjdslgtpgdnvvpmfwvlqbmbgdrqjhdfhlmsdtfwpscsvdzmswszjfwqtsjqpfnjjlnsspvlgzwwtvwgdzfjjljfwbvfbvpglcqcdbdpshwcqzswbwhftbfqblzpqfmqpvzdjsrcqtvjntnhmlhmzllffcjsdnwpfzdglvlrhrljbrhjhgdnfcqcrccwrbbhrvqwrzlwjrrwzsfcwsvbqsjgtgpzqwlczljrtdhtzcgsfgqssdbjjmttdtzhrqtbqjtqfwmcpdftrfjmznpscsqmtfcdpcdjwcqjvmhngcqnmtmwfttcvpwgcnhhgnnbgjdvztzhczvqljjqwcmwcbvmqqjsfnmhtbtsvsnsfwfzgdvlctrgdvbjqpgfrrlsnppmvhfbbclprlvcssnvtsgftmlpqrpjzrrphrzltbtgfwjqqvbgqjdpdgqvzppfzcbhdbbjttcdzclsphtlzfvnfqgpmqvpzrqgpdnbmsrqgsnfdwpvndzmsllgmnrlhnnzldwshtrrsrsmdncwrcjnmcjlwbbfpzcwzvldtgvbcvhnbhgjgwjcvslrfcwbqlrqldvpcgnbwbzzncncftrgbrwchfrrtnpqsjbcpzvplnbqdgtvnnrcwwfvbdzdrsfspvtbhflhsbqmlsjvfmpvjbfvcrdmgrfqsmqgfrntfqnlqbvmsqtpncjrstspbqvfmddmhwsssdcddshmwdlscttmdzljtpwhzhzhwsdnmgjstfmlnqqvzzdqpqsjdsllswmqcjtnthwqnhbscrjdstljqgncjvjvlpfrtscrzrqghrdvdnbtnpshpldcchljzrzqjlwwscnphvrwlvzttcdjdrddgmvqpvdmttdqhwpfmslzvnrwlrrdttbhctgpgzjrmdwjbcmsprwggvmdmmltldgpbfnppnrpwcnpgtblccdvbsnfvgzmjppftvndmdslfshjvndfvvzjjlzhgfmhcggttrcrbrlwrqgjpchvhnjwqnbsnmftwszhzftglrfdvvnbcbzsslgmdchtrrrqqzhllrfhwfwbbdgfpdfwssmzcfcnzmrhfdddtdhfqmctsglqbwhwpnbdzbsfbbvvthrrgjvztjjwgjcgjntrddmmdldtmvjnwjbcqwfwvfhsrpchznhlqpcttqjffbrpbftftdjzlrqchmzrfgjrqlndfwfrghtsfsblcvtjmjrbfrwdgsgzmmjpdlbwzfscfsfcdqwdwnjwjbvvbptmfrqltmnlpbtrqspwdfmhnncqgtrtmbzhfmwrbcqhmmpmvprvwrjplspcmmspldmbgpbtmqjtrfcpfhcnpjbnlhjpzflstjqfqvzcnfgvrmtplndchffzrtfrqdpdnzrspddwmpzlfchrzzfcfvmbvfnlfwtfbvnffdqhljbvwwdtmszgrjtzwqdbgvvfphcnsdgvlmslqngfmsbrztrnpjprghmjffscbnfqwrvjjjtfzrmjtzbwdsmzgmbtjzvddhngmzvflwftblbzfd
diff --git a/day06b/examples/test0.txt b/day06b/examples/test0.txt
new file mode 100644
index 0000000..7980a82
--- /dev/null
+++ b/day06b/examples/test0.txt
@@ -0,0 +1 @@
+mjqjpqmgbljsphdztnvjfqwrcgsmlb
diff --git a/day06b/examples/test1.txt b/day06b/examples/test1.txt
new file mode 100644
index 0000000..19fe247
--- /dev/null
+++ b/day06b/examples/test1.txt
@@ -0,0 +1 @@
+bvwbjplbgvbhsrlpgdmjqwftvncz
diff --git a/day06b/examples/test2.txt b/day06b/examples/test2.txt
new file mode 100644
index 0000000..0f12ee2
--- /dev/null
+++ b/day06b/examples/test2.txt
@@ -0,0 +1 @@
+nppdvjthqldpwncqszvftbrmjlhg
diff --git a/day06b/examples/test3.txt b/day06b/examples/test3.txt
new file mode 100644
index 0000000..38510e7
--- /dev/null
+++ b/day06b/examples/test3.txt
@@ -0,0 +1 @@
+nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg
diff --git a/day06b/examples/test4.txt b/day06b/examples/test4.txt
new file mode 100644
index 0000000..e1d0a43
--- /dev/null
+++ b/day06b/examples/test4.txt
@@ -0,0 +1 @@
+zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw
diff --git a/day06b/src/main.rs b/day06b/src/main.rs
new file mode 100644
index 0000000..7e98082
--- /dev/null
+++ b/day06b/src/main.rs
@@ -0,0 +1,51 @@
+/// --- Part Two ---
+///
+/// Your device's communication system is correctly detecting packets, but still isn't working.  It
+/// looks like it also needs to look for messages.
+///
+/// A start-of-message marker is just like a start-of-packet marker, except it consists of 14
+/// distinct characters rather than 4.
+///
+/// Here are the first positions of start-of-message markers for all of the above examples:
+///
+///     mjqjpqmgbljsphdztnvjfqwrcgsmlb: first marker after character 19
+///     bvwbjplbgvbhsrlpgdmjqwftvncz: first marker after character 23
+///     nppdvjthqldpwncqszvftbrmjlhg: first marker after character 23
+///     nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg: first marker after character 29
+///     zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw: first marker after character 26
+///
+/// How many characters need to be processed before the first start-of-message marker is detected?
+use clap::Parser;
+use itertools::Itertools;
+
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::BufReader;
+use std::iter::*;
+use std::path::PathBuf;
+
+const FILEPATH: &'static str = "examples/input.txt";
+const CONS_CHARS: usize = 14;
+
+#[derive(Parser, Debug)]
+#[clap(author, version, about, long_about = None)]
+struct Cli {
+    #[clap(short, long, default_value = FILEPATH)]
+    file: PathBuf,
+}
+
+fn main() {
+    let args = Cli::parse();
+
+    let file = File::open(&args.file).unwrap();
+    let reader = BufReader::new(file);
+    let line = reader.lines().next().unwrap().unwrap();
+    let res = line
+        .into_bytes()
+        .windows(CONS_CHARS)
+        .position(|b| b.iter().all_unique())
+        .unwrap()
+        + CONS_CHARS;
+
+    println!("{:?}", res);
+}