diff --git a/aoc2022/inputs/day_5.txt b/aoc2022/inputs/day_5.txt
new file mode 100644
index 0000000..0a60bba
--- /dev/null
+++ b/aoc2022/inputs/day_5.txt
@@ -0,0 +1 @@
+pnnfhnhshrhmhwwmwzmznmnwmwfmfhfjfcjjtgtbggpdgdjjbjrjsjpjrrmddmgmpmddrhddnfnfzfpfvpfpprhhlffmtffqhhdtdcdsswsdwswmmfvvpdprrnnhhhtffnfbbznbznnvdnnbffjrfrbfrbrgbrrntnggrqqwtqwwgjgsswgwqwtwwsvwvbwvwrwlrlppzfzwfzzpmzzhqqzqlzlglzzmrmwrmwwvmwvvnppjfjttlffhjjjsccbggnffqgfgjjnccmdmzmllvnlnznttlvlttvnvgnvvqvmvqqzrqqcgglzzwtztwwmjmzjjnddsffqrqlrrvsvdvldvvlgvlvccdzczcqcpphggtnthhhtbhtttcjtjcjgcjcbbrhbbfrffgjgdgzddcttczzsccbpcpddcpcggmjgjddtcccthccfrccmdmhmddnwddfldffntnptnpttcptcptpfphhmfmwfwmmlblgbgvbvlltqltldttfcfcclgcllmplmlbbjnjzjnzzttnvvgddshddsqddggsqgqddsggdhghjgjhhgchhdmdjmjddgdhghrrphrrpnnqhhjwwqrrcmmslmmszzpgzpzzrmzmznzllnjnnlnbbdvdsdffbpffcmmnznqqcbbzvvjnjvvwqwgqqpnnzwnzwnzwwwlpwpzzfqzfqqwnqnbnfnqnbqqbggqnqdndrrzzlffbbgqgfgrfrqqsddnqnqjjgssqwqwcqcpcrrqppwpjjfnfpffhphwwmcwwznwznnplptlplnlsnlsldslslsffwtwftwtbtdbbjsjcczwwfllwtlwtlwlvwlwrwppsggvcvrrqcrqqvmqvmmbrrsbsfspspjpnnmpmqmcczgzffqmfmtmpppwzppzrpzrzsrrpqrpqpmpvmpvpttbqtqmtmjttqdqgggcppclcjcpcsppctpplpdpcppcmmdzmzddvhvhnhrrldllcwwbnwnssshlhrhthggtmggbjbjwwbvbttjllvrrfggngvngnmmvzzrrmddmcddztztctfccqpcpcqqvqppqcqdcdhhvhssgfgzgwwzmmnssvwwbqbhbnhnphpqqjcqcddfwfttqjtqtlttglljgjbgjgnnsqqvrvffqvqfqbffljjpffssqdsqstqqqldqqmhmsmsqqwtqwqdqgdgjjfbjffgbbrhhqghgppqgpgmpmmfzfhhfrhffgmfggpzgpzzhtzhhlbhhqbbzvvnvqnntptmmbhbdhdwwmjjcnnmsscqcbbtjtvjvwjvvmsmjmtmpmgghttcztzggpddbfbfgbbdsdrsrrqfqjjqfjjhzhtzzmdzzcgzgdzzmvmmfmjmgjmggmppbdppmzpppvfppzhhfsfwfhhpjpmmrjjpssdccjpjpwjppvdpphcpcjcfjfwjfwfjwfjjqcqcwqqqsmmmbbgdgwwpcwwdfdlflrltlgtthfhfjhhlthtddlgdggsjsrrdpdcppgttphpgpwppmpzmmrjmmvjvgvgfglfgllbqlqhllszzlwwhzzdfdcdtctptwtztfzzmjzjtjtrjrcrnrjjmwmnnbddgvgtgsstjsszmpqdmzgqflrbrspjmtzjcrmlzltmhgblghnwqvwwqwzbpnfrpdpblpjgshfccfbjfsnwvvhnjftsdnsgtzzjtzpmtfdvzrhtqpblhwgmqtgpbfvbdmsnrrrvvbstpsznvbbwgjfqjrhdvwvgptpglpfddhddmtglmjlpwlvfpbtbmgbplbzrlpdlvqzcwhbscpszgfstjpfdvfpmljlngrbgrdnnblzqrfpzsdvblpwbtnhdjclldvwvbwcwzfzbdspgwpfqjfbdbrqcshtlvcrdstnzggbwqnzbrfzbpnrtmvpbvdhcvdsdshgtvhfgdzljflppqbwclnvbhbczvrscjhlbgbfvwdjhnjsgmvwhpfgwbbmnndpnglfrmtfdzvqgfjdqfhgrhvpbqndmqnqccgwswwdsqjnbjtjbjdbqgjnmfbdvlnfwbnrdqgvgzzhmmbbdzfdvvpwhpbwbnzdcdpchrwlhfsjnhhjggvplmqggwjdsvjtpnpnqgldjjdcscrdltssjdrpcrfbgbcjfplhzgwbprfcslhpcngtszrghmwhzdqscbfrhzdwcffzvmjrmcjcstfvhplvrsglgsjnjtrpddsdfqjsndjnfmvdhfgdbzzflqhsrrwmrnlpqzmcddqbqvvzgtlztpgjnddtcnbmqsjlhmcszrmcjvwzpptlfqsmpvgnzvrjdwzpdwqgbmdgdtvjlmfczthjbcgfhbqpnmlbmrwwhfptzlbmfdhssznjcvjbmnjtnvzjhzczlrrdnttmmcbnzhqpplzqwgttwrnwfvmnptgqlfrnzvqpjfgrzwmlcwvtptvcvrlsrdwdgqfvffspmdbnnrqjttpqvhvdpbcrvzptwnhhfsqzchmncvttcdgdnlppcfzpmjpvbvqhlvplwvrmmbbggbwttwmvsqjlllsftprsmtmnzjcqfzblrllzgshfljchrjwjlpvhpbrtrsschzltrblgjnbgdnmwdggjhqggntblnhsvfgsbcblhmctbqzqwmhqnjhpzjfqpjdgwpzhczcftfcpdhvzhzccmwmrfrbqshzmtpqgpbbvfqqbjbmvnlnlwjtzrpmhdlffccrqcfgsjfszbrzrfztntchtmgmbhjgmlsqzcbtqqjzzlghtzzqmlnnvsgsvbbjfgqsqbqmqrdzwpwdgbggpdvhvnlzshhntprjdwhnwfvdjzpqgflwrvwgtmfdmfdztcbtfnjdrvgdwwczdgphnvdgrbdchprqldfjrvcsflcmlcmzqvqgsgnzcgmrhccgcmptcdzhbcdgdtppwztfstzqqzqrdzlnzthggjmpcflmbcmdrrjnnpbpqfmjbzqbtsjjgdlmgncbmgspqqvbrvzrdjscpzjsdtcdvsdwqlmwrngttswnrsbqctvhgfnnwblpcqzdmzpfchplslspmghvgcqntmlrfhgpcbpspvfhnvqvglsqzsnsdzddqpbsjhlclslngbwvvgjhwfcncqsmqwbptzvpzlzslsjjjldjpwpfrdlfbjphqcjtsgqdsdfdjhqgdhcppndwmhmmldvvmblcqcqfqhltbcbvrnghjfmtgqwtwljtczvqlnmgscjhqdhnzwhzvzzqnlsrhqvljqpgpwghfqlhjjrrhvnmnnrbnlhdcjctwtlhmhhmhjvcgzdrzmdjrvqzgnsttjdwglgwlcmbcdnjprgfsbbdzzngbqdrvwwwhbtlnnmzqdjttsrrpvlfdqnfhhtdtvmpcjgdwtbnqmwmtszdqfmbhjsjpqqddzfggwjhbtlnqfgcwbjzdtcpcpzgnrmnvwlpgmwfjlpgppdfrfvvjwsfcdqdnpcpjbqsvhttssgptqjghctrbgntlfjzdrfjccsprsjlrrwrzsmnjsqslmpdtrvhlqbnmgpjthpqdqmnvrtzlhhzzfzbrcclpmpcszhbttgrtcpgcpjwpdbfpfvgspsgtvglwthqcmcvmrfmclwlvjlsptfgmtlrnsvjrnfwzhdcsmgztpzfcvzwdztpppvqpvqfpdrsfnlhrbqwrsqjtwjmhnpwmqmpdgdhbtbpfwnmswffdqffdggrdrpmngvpzplmmwlddnhcvjjzqqfsbbtfmzdwnpvbjrshmllczhgvwwcbcbtfrfnplqjwmjlvpwwgfrtffwddwppsgtnlmpvfnhfzcsgjbqbjmbvpnqppsrvwnlzvcmjqgtbzrdsnrgwbfmrvnflgccrssfvcwgllqqbbcthzmbtnsmbzbcczhtzcvmthttpltrtdmgspctvtpvqbhmnnpnjwmhpqclmjsdrbjwvjbtzcjlqbjsvbgdwqzflnwzcfjwtrhjgfshfmwbjfwpnhjsmtpgbpwlfjjnmdlrhchmnfmgmgcrftmwbzshdwbhndgwtjbrrvbwprqppfmgfmfllpcjgrwdmtzddthsjlgjljv
diff --git a/aoc2022/src/day_6.rs b/aoc2022/src/day_6.rs
new file mode 100644
index 0000000..111c9e9
--- /dev/null
+++ b/aoc2022/src/day_6.rs
@@ -0,0 +1,49 @@
+use std::collections::HashSet;
+
+fn is_unique_string(chars: &str) -> bool {
+    let mut set: HashSet<char> = HashSet::with_capacity(chars.len());
+    set.extend(chars.chars());
+    return set.len() == chars.len();
+}
+
+fn solution(sequence: String, sub_len: usize) -> usize {
+    for i in 0..(sequence.len() - sub_len) {
+        let sub = &sequence[i..i + sub_len];
+        if is_unique_string(sub.try_into().unwrap()) {
+            return i + sub_len;
+        }
+    }
+
+    return 0;
+}
+
+#[cfg(test)]
+mod tests {
+    use std::fs;
+
+    use super::*;
+
+    #[test]
+    fn basic_example() {
+        let input = "bvwbjplbgvbhsrlpgdmjqwftvncz".to_string();
+        assert_eq!(solution(input, 4), 5);
+        let input = "nppdvjthqldpwncqszvftbrmjlhg".to_string();
+        assert_eq!(solution(input, 4), 6);
+        let input = "nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg".to_string();
+        assert_eq!(solution(input, 4), 10);
+        let input = "zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw".to_string();
+        assert_eq!(solution(input, 4), 11);
+    }
+
+    #[test]
+    fn answer_part1() {
+        let input = fs::read_to_string("inputs/day_5.txt").unwrap();
+        println!("Answer to part 1 of day 6: {:#?}", solution(input, 4));
+    }
+
+    #[test]
+    fn answer_part2() {
+        let input = fs::read_to_string("inputs/day_5.txt").unwrap();
+        println!("Answer to part 2 of day 6: {:#?}", solution(input, 14));
+    }
+}
diff --git a/aoc2022/src/lib.rs b/aoc2022/src/lib.rs
index 42808d1..802867b 100644
--- a/aoc2022/src/lib.rs
+++ b/aoc2022/src/lib.rs
@@ -1,2 +1,3 @@
-#[allow(dead_code)]
+#![allow(dead_code)]
 mod day_4;
+mod day_6;