Initial commit, done up to 2015.7

16 files changed, 3078 insertions, 0 deletions

diff --git a/2015/rs/Cargo.lock b/2015/rs/Cargo.lock
new file mode 100644
index 0000000..fcc0eb5
--- /dev/null
+++ b/2015/rs/Cargo.lock
@@ -0,0 +1,77 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
+name = "md-5"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d89e7ee0cfbedfc4da3340218492196241d89eefb6dab27de5df917a6d2e78cf"
+dependencies = [
+ "cfg-if",
+ "digest",
+]
+
+[[package]]
+name = "rs"
+version = "0.1.0"
+dependencies = [
+ "md-5",
+]
+
+[[package]]
+name = "typenum"
+version = "1.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
diff --git a/2015/rs/Cargo.toml b/2015/rs/Cargo.toml
new file mode 100644
index 0000000..7f6f71f
--- /dev/null
+++ b/2015/rs/Cargo.toml
@@ -0,0 +1,35 @@
+[package]
+name = "rs"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "one"
+path = "src/one.rs"
+
+[[bin]]
+name = "two"
+path = "src/two.rs"
+
+[[bin]]
+name = "three"
+path = "src/three.rs"
+
+[[bin]]
+name = "four"
+path = "src/four.rs"
+
+[[bin]]
+name = "five"
+path = "src/five.rs"
+
+[[bin]]
+name = "six"
+path = "src/six.rs"
+
+[[bin]]
+name = "seven"
+path = "src/seven.rs"
+
+[dependencies]
+md-5 = "0.10.6"
diff --git a/2015/rs/src/base.rs b/2015/rs/src/base.rs
new file mode 100644
index 0000000..44099ac
--- /dev/null
+++ b/2015/rs/src/base.rs
@@ -0,0 +1,5 @@
+static INPUT: &'static str = include_str!("!!.txt");
+
+fn main() {
+  let valueified = INPUT;
+}
diff --git a/2015/rs/src/five.rs b/2015/rs/src/five.rs
new file mode 100644
index 0000000..804d38b
--- /dev/null
+++ b/2015/rs/src/five.rs
@@ -0,0 +1,52 @@
+static INPUT: &'static str = include_str!("five.txt");
+
+fn main() {
+  let valueified = INPUT.split('\n').filter(|s| !s.is_empty());
+
+  let nice_count = valueified.clone().filter(|s| {
+    let mut s2 = s.chars();
+    let mut last_char = s2.next().unwrap();
+
+    let mut double_flag = false;
+    let mut abcdpqxy_flag = false;
+    for c in s2 {
+      if c == last_char { double_flag = true; }
+      if [('a','b'),('c','d'),('p','q'),('x','y')].contains(&(last_char, c)) { abcdpqxy_flag = true; }
+      if double_flag && abcdpqxy_flag { break; }
+
+      last_char = c;
+    }
+
+    s.chars().filter(|c| "aeiou".contains(*c)).count() >= 3 && double_flag && !abcdpqxy_flag
+  }).count();
+  println!("Nice word count: {nice_count}");
+
+  let nice_count = valueified.filter(|s| {
+    let mut s = s.chars();
+    let mut llc = s.next().unwrap();
+    let mut lc = s.next().unwrap();
+
+    let mut dupeslist = Vec::with_capacity(32);
+    dupeslist.push((llc, lc));
+    let mut pushed = true;
+
+    let mut flag1 = false;
+    let mut flag2 = false;
+
+    for c in s {
+      if !flag1 && (lc != c || (lc == c && (llc != lc || !pushed))) && dupeslist.contains(&(lc, c)) { flag1 = true; }
+      if !flag1 && !dupeslist.contains(&(lc, c)) { dupeslist.push((lc, c)); pushed = true; } else { pushed = false; }
+
+      if c == llc { flag2 = true; }
+
+      if flag1 && flag2 { break; }
+
+      llc = lc;
+      lc = c;
+    }
+
+    flag1 && flag2
+  }).count();
+
+  println!("Nice word(v2) count: {nice_count}");
+}
diff --git a/2015/rs/src/five.txt b/2015/rs/src/five.txt
new file mode 100644
index 0000000..a9b6e77
--- /dev/null
+++ b/2015/rs/src/five.txt
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diff --git a/2015/rs/src/four.rs b/2015/rs/src/four.rs
new file mode 100644
index 0000000..177ddc5
--- /dev/null
+++ b/2015/rs/src/four.rs
@@ -0,0 +1,46 @@
+use md5::{Digest, Md5};
+use std::fmt::Write;
+use std::io::Write as WriteI;
+
+static INPUT: &'static [u8] = b"yzbqklnj";
+
+fn main() {
+  let mut buf = Vec::with_capacity(INPUT.len() + 10);
+  buf.extend_from_slice(INPUT);
+
+  for i in 0.. {
+    if i % 1000 == 0 { print!("{i}\r"); std::io::stdout().flush(); }
+
+    let mut hasher = Md5::new();
+    write!(&mut buf, "{i}");
+    hasher.update(buf.as_slice());
+    let hash = hasher.finalize();
+    if hash.starts_with(&[0, 0]) && hash[2] < 16 {
+      let mut hexhash = String::with_capacity(32);
+      for digit in hash {
+        write!(&mut hexhash, "{digit:02x}");
+      }
+      println!("Got 5 digit hash: {hexhash}, at {i}");
+      break;
+    }
+    buf.truncate(INPUT.len());
+  }
+
+  for i in 0.. {
+    if i % 1000 == 0 { print!("{i}\r"); std::io::stdout().flush(); }
+
+    let mut hasher = Md5::new();
+    write!(&mut buf, "{i}");
+    hasher.update(buf.as_slice());
+    let hash = hasher.finalize();
+    if hash.starts_with(&[0, 0, 0]) {
+      let mut hexhash = String::with_capacity(32);
+      for digit in hash {
+        write!(&mut hexhash, "{digit:02x}");
+      }
+      println!("Got 6 digit hash: {hexhash}, at {i}");
+      break;
+    }
+    buf.truncate(INPUT.len());
+  }
+}
diff --git a/2015/rs/src/one.rs b/2015/rs/src/one.rs
new file mode 100644
index 0000000..c23c1bd
--- /dev/null
+++ b/2015/rs/src/one.rs
@@ -0,0 +1,11 @@
+static INPUT: &'static str = include_str!("one.txt");
+
+fn main() {
+  let valueified = INPUT.chars().map(|c| match c { '(' => 1, ')' => -1, _ => 0});
+  let floor_number: i32 = valueified.clone().sum();
+  println!("Floor number: {floor_number}");
+
+  let mut floor = 0;
+  let basement_index = valueified.take_while(|i| {floor += i; floor >= 0}).count() + 1;
+  println!("First character in basement: {basement_index}");
+}
diff --git a/2015/rs/src/one.txt b/2015/rs/src/one.txt
new file mode 100644
index 0000000..2d4ad8f
--- /dev/null
+++ b/2015/rs/src/one.txt
@@ -0,0 +1 @@
+()(((()))(()()()((((()(((())(()(()((((((()(()(((())))((()(((()))((())(()((()()()()(((())(((((((())))()()(()(()(())(((((()()()((())(((((()()))))()(())(((())(())((((((())())))(()())))()))))()())()())((()()((()()()()(()((((((((()()())((()()(((((()(((())((())(()))()((((()((((((((())()((()())(())((()))())((((()())(((((((((((()()(((((()(()))())(((()(()))())((()(()())())())(()(((())(())())()()(()(()((()))((()))))((((()(((()))))((((()(()(()())())()(((()((((())((((()(((()()(())()()()())((()((((((()((()()))()((()))()(()()((())))(((()(((()))((()((()(()))(((()()(()(()()()))))()()(((()(((())())))))((()(((())()(()(())((()())))((((())))(()(()(()())()((()())))(((()((()(())()()((()((())(()()((())(())()))()))((()(())()))())(((((((()(()()(()(())())))))))(()((((((())((((())((())())(()()))))()(())(()())()())((())(()))))(()))(()((()))()(()((((((()()()()((((((((()(()(())((()()(()()))(())()())()((())))()))()())(((()))(())()(())()))()((()((()(()()())(())()()()((())())))((()()(()()((()(())()()())(((()(()()))))(())))(()(()())()))()()))))))()))))((((((())))())))(()(())())(()())))))(()))()))))))()((()))))()))))(()(()((()())())(()()))))(((())()))())())())(((()(()()))(())()(())(())((((((()()))))((()(()))))))(()))())(((()()(()))()())()()()())))))))))))))(())(()))(()))((()(())(()())(())())(()())(())()()(()())))()()()))(())())()))())())(())((())))))))(())))(())))))()))))((())(()(((()))))(()))()((()(())))(()())(((((()))()())()()))))()))))()))())(()(()()()))()))))))((()))))))))))()((()))((()(())((())()()(()()))()(()))))()()(()))()))(((())))(())()((())(())(()())()())())))))))())))()((())))()))(()))()()))(((((((()))())(()()))(()()(()))()(()((()())()))))))(((()()()())))(())()))()())(()()))()()))))))))(())))()))()()))))))()))()())))()(())(())))))()(())()()(()()))))())((()))))()))))(()(((((()))))))))())))())()(())()()))))(())))())()()())()()())()(()))))()))()))))))))())))((()))()))()))())))()())()()())))())))(()((())()((()))())))))())()(())((())))))))))))())()())(())())())(()))(()))()))())(()(())())()())()()(()))))(()(())))))))(())))())(())))))))())()()(())())())))(())))))()))()(()())()(()))())())))))()()(()))()))))())))))))))()))))()))))))())()())()()))))()())))())))))))))))()()))))()()(((()))()()(())()))))((()))))(()))(())())))(())()))))))(()))()))))(())())))))()))(()())))))))))))))())))))))))()((()())(()())))))))((()))))(())(())))()(()())())))())())(()()()())))()))))))())))))())()()())))))))))))()()(()))))()())()))((()())(()))))()(()))))))))))()())())(((())(()))))())()))()))()))))))()))))))(()))))()))))()(())))(())))(()))())()()(()()))()))(()()))))))))()))(()))())(()()(()(()())()()))()))))))))(())))))((()()(()))())())))))()))())(()())()()))())))()(()()()()))((())())))())()(()()))()))))))))(()))(())))()))))(()(()())(()))))()())())()))()()))())))))))))))())()))))))()))))))))())))))()))))())(()())))(())()))())())))))()()(()()())(()())))()()))(((()))(()()()))))()))))()))))((())))()((((((()()))))))())))))))))))(((()))))))))))))(())())))))())(()))))))(()))((()))())))()(()((()))()))()))))))))))())()))()(()()))))())))())(())()(()))()))())(()))()))))(()()))()()(())))))()))(())(()(()()))(()()())))))(((()))))))()))))))))))))(())(()))))()())())()()((()()))())))))(()))))())))))))()()()))))))))())))()(((()()))(())))))(((())())))))((()))()(()))(()))))(()())))(()))())))))()))))(())(())))()((()))(())())))()()))()))))))))()))(()()()(()()()(()))())(())()())(((()))(())))))))))(((()())))()()))))))))()(())(()))()((((())(())(()())))()))(((())()()()))((()))(()))())())))())))(()))())()())())(()(())())()()()(())))())(())))(())))(())()))()))(()((()))))))))())(()))))))())(()()))()()))()(()(()())))()()(()((()((((((()))(())))()()()))())()))((()()(()))())((()(()(()))(()()))))()())))()))()())))))))()()((()())(())))()))(()))(())(()))())(()(())))()()))))))(((()(((()()))()(()(())())((()()))()))()))()))()(()()()(()))((()())()(())))()()))(((())()()())(())()((()()()()(()(())(()()))()(((((()())))((())))))(()()()))))(((()(())))()))((()((()(())()(()((())))((()())()(()))(((()())()()(()))(())(((()((()())()((())()())(((()()))((()((())(()))(()())(()()()))((()))(())(()((()()())((()))(())))(())(())(())))(()())))(((((()(()(((((()())((((()(()())(())(()()(((())((()(((()()(((()()((((((())))())(()((((((()(()))()))()()((()((()))))()(()()(()((()()))))))(((((()(((((())()()()(())())))))))()))((()()(())))(())(()()()())))))(()((((())))))))()()(((()(()(()(()(()())()()()(((((((((()()())()(()))((()()()()()(((((((()())()((())()))((((((()(()(()(()())(((()(((((((()(((())(((((((((())(())())()))((()(()))(((()()())(())(()(()()(((()(())()))())))(())((((((())(()()())()()(((()(((())(()(((())(((((((()(((((((((()))(())(()(()(()))))((()))()(())())())((()(()((()()))((()()((()(())(())(()((())(((())(((()()()((((((()()(())((((())()))))(())((()(()((())))(((((()(()()())())((())())))((())((()((()()((((((())(((()()(()())())(()(()))(()(()))())())()(((((((()(((()(())()()((())((()(()()((()(()()(((((((((((())((())((((((())((()((((()(()((((()(((((((())()((()))))())()((()((((()(()(((()((()())))(())())(((()(((())((((((()(((((((((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diff --git a/2015/rs/src/seven.rs b/2015/rs/src/seven.rs
new file mode 100644
index 0000000..7d44f0e
--- /dev/null
+++ b/2015/rs/src/seven.rs
@@ -0,0 +1,94 @@
+use std::collections::HashMap;
+
+static INPUT: &[u8] = include_bytes!("seven.txt");
+
+#[derive(Debug, Copy, Clone)]
+enum WireOrLiteral {
+  Wire([u8; 2]),
+  Literal(u16)
+}
+
+#[derive(Debug, Copy, Clone)]
+enum Connection {
+  Direct(WireOrLiteral),
+  Not   (WireOrLiteral),
+  And   (WireOrLiteral, WireOrLiteral),
+  Or    (WireOrLiteral, WireOrLiteral),
+  LShift(WireOrLiteral, WireOrLiteral),
+  RShift(WireOrLiteral, WireOrLiteral),
+}
+
+#[derive(Debug, Copy, Clone)]
+enum Cache {
+  Cached(u16),
+  Uncached(Connection)
+}
+
+fn main() {
+  let valueified = INPUT
+    .split(|b| *b == b'\n').filter(|b| !b.is_empty())
+    .map(|line| {
+      let mut bits = line.split(|b| *b == b'-');
+      let (rhs, lhs) = (bits.next().unwrap().strip_suffix(b" ").unwrap(), bits.next().unwrap().strip_prefix(b"> ").unwrap());
+      let mut cmdbits = rhs.split(|b| *b == b' ');
+      let cmdbits = (cmdbits.next().unwrap(), cmdbits.next().unwrap_or(&[]), cmdbits.next().unwrap_or(&[]));
+
+      let connection = match cmdbits {
+        (wol, &[], &[]) => Connection::Direct(parse_wol(wol)),
+        (b"NOT", wol, &[]) => Connection::Not(parse_wol(wol)),
+        (wol1, b"AND", wol2) => Connection::And(parse_wol(wol1), parse_wol(wol2)),
+        (wol1, b"OR", wol2) => Connection::Or(parse_wol(wol1), parse_wol(wol2)),
+        (wol1, b"LSHIFT", wol2) => Connection::LShift(parse_wol(wol1), parse_wol(wol2)),
+        (wol1, b"RSHIFT", wol2) => Connection::RShift(parse_wol(wol1), parse_wol(wol2)),
+        _ => unreachable!()
+      };
+
+      let wire = [lhs[0], *lhs.get(1).unwrap_or(&0)];
+
+      (wire, Cache::Uncached(connection))
+    })
+    .collect::<HashMap<[u8; 2], Cache>>();
+
+  let mut part1 = valueified.clone();
+  let a_val = walk(*b"a\0", &mut part1);
+  println!("a: {a_val}");
+
+
+  let mut part2 = valueified.clone();
+  part2.insert(*b"b\0", Cache::Uncached(Connection::Direct(WireOrLiteral::Literal(a_val))));
+  let a_val_2 = walk(*b"a\0", &mut part2);
+  println!("a with b={a_val}: {a_val_2}");
+}
+
+fn parse_wol(bytes: &[u8]) -> WireOrLiteral {
+  if bytes.iter().all(u8::is_ascii_digit) {
+    WireOrLiteral::Literal(std::str::from_utf8(bytes).unwrap().parse().unwrap())
+  } else {
+    WireOrLiteral::Wire([bytes[0], *bytes.get(1).unwrap_or(&0)])
+  }
+}
+
+fn walk(key: [u8; 2], map: &mut HashMap<[u8; 2], Cache>) -> u16 {
+  match map[&key] {
+    Cache::Cached(val) => val,
+    Cache::Uncached(conn) => {
+      let val = match conn {
+        Connection::Direct(wol) => get_wol(wol, map),
+        Connection::Not(wol) => !get_wol(wol, map),
+        Connection::And(wol1, wol2) => get_wol(wol1, map) & get_wol(wol2, map),
+        Connection::Or(wol1, wol2) => get_wol(wol1, map) | get_wol(wol2, map),
+        Connection::LShift(wol1, wol2) => get_wol(wol1, map) << get_wol(wol2, map),
+        Connection::RShift(wol1, wol2) => get_wol(wol1, map) >> get_wol(wol2, map)
+      };
+      map.insert(key, Cache::Cached(val));
+      val
+    }
+  }
+}
+
+fn get_wol(wol: WireOrLiteral, map: &mut HashMap<[u8; 2], Cache>) -> u16 {
+  match wol {
+    WireOrLiteral::Wire(wire) => walk(wire, map),
+    WireOrLiteral::Literal(literal) => literal
+  }
+}
diff --git a/2015/rs/src/seven.txt b/2015/rs/src/seven.txt
new file mode 100644
index 0000000..56cae92
--- /dev/null
+++ b/2015/rs/src/seven.txt
@@ -0,0 +1,339 @@
+af AND ah -> ai
+NOT lk -> ll
+hz RSHIFT 1 -> is
+NOT go -> gp
+du OR dt -> dv
+x RSHIFT 5 -> aa
+at OR az -> ba
+eo LSHIFT 15 -> es
+ci OR ct -> cu
+b RSHIFT 5 -> f
+fm OR fn -> fo
+NOT ag -> ah
+v OR w -> x
+g AND i -> j
+an LSHIFT 15 -> ar
+1 AND cx -> cy
+jq AND jw -> jy
+iu RSHIFT 5 -> ix
+gl AND gm -> go
+NOT bw -> bx
+jp RSHIFT 3 -> jr
+hg AND hh -> hj
+bv AND bx -> by
+er OR es -> et
+kl OR kr -> ks
+et RSHIFT 1 -> fm
+e AND f -> h
+u LSHIFT 1 -> ao
+he RSHIFT 1 -> hx
+eg AND ei -> ej
+bo AND bu -> bw
+dz OR ef -> eg
+dy RSHIFT 3 -> ea
+gl OR gm -> gn
+da LSHIFT 1 -> du
+au OR av -> aw
+gj OR gu -> gv
+eu OR fa -> fb
+lg OR lm -> ln
+e OR f -> g
+NOT dm -> dn
+NOT l -> m
+aq OR ar -> as
+gj RSHIFT 5 -> gm
+hm AND ho -> hp
+ge LSHIFT 15 -> gi
+jp RSHIFT 1 -> ki
+hg OR hh -> hi
+lc LSHIFT 1 -> lw
+km OR kn -> ko
+eq LSHIFT 1 -> fk
+1 AND am -> an
+gj RSHIFT 1 -> hc
+aj AND al -> am
+gj AND gu -> gw
+ko AND kq -> kr
+ha OR gz -> hb
+bn OR by -> bz
+iv OR jb -> jc
+NOT ac -> ad
+bo OR bu -> bv
+d AND j -> l
+bk LSHIFT 1 -> ce
+de OR dk -> dl
+dd RSHIFT 1 -> dw
+hz AND ik -> im
+NOT jd -> je
+fo RSHIFT 2 -> fp
+hb LSHIFT 1 -> hv
+lf RSHIFT 2 -> lg
+gj RSHIFT 3 -> gl
+ki OR kj -> kk
+NOT ak -> al
+ld OR le -> lf
+ci RSHIFT 3 -> ck
+1 AND cc -> cd
+NOT kx -> ky
+fp OR fv -> fw
+ev AND ew -> ey
+dt LSHIFT 15 -> dx
+NOT ax -> ay
+bp AND bq -> bs
+NOT ii -> ij
+ci AND ct -> cv
+iq OR ip -> ir
+x RSHIFT 2 -> y
+fq OR fr -> fs
+bn RSHIFT 5 -> bq
+0 -> c
+14146 -> b
+d OR j -> k
+z OR aa -> ab
+gf OR ge -> gg
+df OR dg -> dh
+NOT hj -> hk
+NOT di -> dj
+fj LSHIFT 15 -> fn
+lf RSHIFT 1 -> ly
+b AND n -> p
+jq OR jw -> jx
+gn AND gp -> gq
+x RSHIFT 1 -> aq
+ex AND ez -> fa
+NOT fc -> fd
+bj OR bi -> bk
+as RSHIFT 5 -> av
+hu LSHIFT 15 -> hy
+NOT gs -> gt
+fs AND fu -> fv
+dh AND dj -> dk
+bz AND cb -> cc
+dy RSHIFT 1 -> er
+hc OR hd -> he
+fo OR fz -> ga
+t OR s -> u
+b RSHIFT 2 -> d
+NOT jy -> jz
+hz RSHIFT 2 -> ia
+kk AND kv -> kx
+ga AND gc -> gd
+fl LSHIFT 1 -> gf
+bn AND by -> ca
+NOT hr -> hs
+NOT bs -> bt
+lf RSHIFT 3 -> lh
+au AND av -> ax
+1 AND gd -> ge
+jr OR js -> jt
+fw AND fy -> fz
+NOT iz -> ja
+c LSHIFT 1 -> t
+dy RSHIFT 5 -> eb
+bp OR bq -> br
+NOT h -> i
+1 AND ds -> dt
+ab AND ad -> ae
+ap LSHIFT 1 -> bj
+br AND bt -> bu
+NOT ca -> cb
+NOT el -> em
+s LSHIFT 15 -> w
+gk OR gq -> gr
+ff AND fh -> fi
+kf LSHIFT 15 -> kj
+fp AND fv -> fx
+lh OR li -> lj
+bn RSHIFT 3 -> bp
+jp OR ka -> kb
+lw OR lv -> lx
+iy AND ja -> jb
+dy OR ej -> ek
+1 AND bh -> bi
+NOT kt -> ku
+ao OR an -> ap
+ia AND ig -> ii
+NOT ey -> ez
+bn RSHIFT 1 -> cg
+fk OR fj -> fl
+ce OR cd -> cf
+eu AND fa -> fc
+kg OR kf -> kh
+jr AND js -> ju
+iu RSHIFT 3 -> iw
+df AND dg -> di
+dl AND dn -> do
+la LSHIFT 15 -> le
+fo RSHIFT 1 -> gh
+NOT gw -> gx
+NOT gb -> gc
+ir LSHIFT 1 -> jl
+x AND ai -> ak
+he RSHIFT 5 -> hh
+1 AND lu -> lv
+NOT ft -> fu
+gh OR gi -> gj
+lf RSHIFT 5 -> li
+x RSHIFT 3 -> z
+b RSHIFT 3 -> e
+he RSHIFT 2 -> hf
+NOT fx -> fy
+jt AND jv -> jw
+hx OR hy -> hz
+jp AND ka -> kc
+fb AND fd -> fe
+hz OR ik -> il
+ci RSHIFT 1 -> db
+fo AND fz -> gb
+fq AND fr -> ft
+gj RSHIFT 2 -> gk
+cg OR ch -> ci
+cd LSHIFT 15 -> ch
+jm LSHIFT 1 -> kg
+ih AND ij -> ik
+fo RSHIFT 3 -> fq
+fo RSHIFT 5 -> fr
+1 AND fi -> fj
+1 AND kz -> la
+iu AND jf -> jh
+cq AND cs -> ct
+dv LSHIFT 1 -> ep
+hf OR hl -> hm
+km AND kn -> kp
+de AND dk -> dm
+dd RSHIFT 5 -> dg
+NOT lo -> lp
+NOT ju -> jv
+NOT fg -> fh
+cm AND co -> cp
+ea AND eb -> ed
+dd RSHIFT 3 -> df
+gr AND gt -> gu
+ep OR eo -> eq
+cj AND cp -> cr
+lf OR lq -> lr
+gg LSHIFT 1 -> ha
+et RSHIFT 2 -> eu
+NOT jh -> ji
+ek AND em -> en
+jk LSHIFT 15 -> jo
+ia OR ig -> ih
+gv AND gx -> gy
+et AND fe -> fg
+lh AND li -> lk
+1 AND io -> ip
+kb AND kd -> ke
+kk RSHIFT 5 -> kn
+id AND if -> ig
+NOT ls -> lt
+dw OR dx -> dy
+dd AND do -> dq
+lf AND lq -> ls
+NOT kc -> kd
+dy AND ej -> el
+1 AND ke -> kf
+et OR fe -> ff
+hz RSHIFT 5 -> ic
+dd OR do -> dp
+cj OR cp -> cq
+NOT dq -> dr
+kk RSHIFT 1 -> ld
+jg AND ji -> jj
+he OR hp -> hq
+hi AND hk -> hl
+dp AND dr -> ds
+dz AND ef -> eh
+hz RSHIFT 3 -> ib
+db OR dc -> dd
+hw LSHIFT 1 -> iq
+he AND hp -> hr
+NOT cr -> cs
+lg AND lm -> lo
+hv OR hu -> hw
+il AND in -> io
+NOT eh -> ei
+gz LSHIFT 15 -> hd
+gk AND gq -> gs
+1 AND en -> eo
+NOT kp -> kq
+et RSHIFT 5 -> ew
+lj AND ll -> lm
+he RSHIFT 3 -> hg
+et RSHIFT 3 -> ev
+as AND bd -> bf
+cu AND cw -> cx
+jx AND jz -> ka
+b OR n -> o
+be AND bg -> bh
+1 AND ht -> hu
+1 AND gy -> gz
+NOT hn -> ho
+ck OR cl -> cm
+ec AND ee -> ef
+lv LSHIFT 15 -> lz
+ks AND ku -> kv
+NOT ie -> if
+hf AND hl -> hn
+1 AND r -> s
+ib AND ic -> ie
+hq AND hs -> ht
+y AND ae -> ag
+NOT ed -> ee
+bi LSHIFT 15 -> bm
+dy RSHIFT 2 -> dz
+ci RSHIFT 2 -> cj
+NOT bf -> bg
+NOT im -> in
+ev OR ew -> ex
+ib OR ic -> id
+bn RSHIFT 2 -> bo
+dd RSHIFT 2 -> de
+bl OR bm -> bn
+as RSHIFT 1 -> bl
+ea OR eb -> ec
+ln AND lp -> lq
+kk RSHIFT 3 -> km
+is OR it -> iu
+iu RSHIFT 2 -> iv
+as OR bd -> be
+ip LSHIFT 15 -> it
+iw OR ix -> iy
+kk RSHIFT 2 -> kl
+NOT bb -> bc
+ci RSHIFT 5 -> cl
+ly OR lz -> ma
+z AND aa -> ac
+iu RSHIFT 1 -> jn
+cy LSHIFT 15 -> dc
+cf LSHIFT 1 -> cz
+as RSHIFT 3 -> au
+cz OR cy -> da
+kw AND ky -> kz
+lx -> a
+iw AND ix -> iz
+lr AND lt -> lu
+jp RSHIFT 5 -> js
+aw AND ay -> az
+jc AND je -> jf
+lb OR la -> lc
+NOT cn -> co
+kh LSHIFT 1 -> lb
+1 AND jj -> jk
+y OR ae -> af
+ck AND cl -> cn
+kk OR kv -> kw
+NOT cv -> cw
+kl AND kr -> kt
+iu OR jf -> jg
+at AND az -> bb
+jp RSHIFT 2 -> jq
+iv AND jb -> jd
+jn OR jo -> jp
+x OR ai -> aj
+ba AND bc -> bd
+jl OR jk -> jm
+b RSHIFT 1 -> v
+o AND q -> r
+NOT p -> q
+k AND m -> n
+as RSHIFT 2 -> at
diff --git a/2015/rs/src/six.rs b/2015/rs/src/six.rs
new file mode 100644
index 0000000..0fe0d2d
--- /dev/null
+++ b/2015/rs/src/six.rs
@@ -0,0 +1,57 @@
+static INPUT: &'static str = include_str!("six.txt");
+
+#[derive(Debug)]
+enum LightCommand {
+  TurnOff,
+  TurnOn,
+  Toggle
+}
+
+fn main() {
+  let valueified = INPUT.split('\n').filter(|s| !s.is_empty()).map(|s| {
+    let mut rsplit = s.rsplit(' ');
+    let mut cd = rsplit.next().unwrap().split(',').map(str::parse::<usize>).map(Result::unwrap);
+    let mut ab = rsplit.nth(1).unwrap().split(',').map(str::parse::<usize>).map(Result::unwrap);
+    let ab = (ab.next().unwrap(), ab.next().unwrap());
+    let cd = (cd.next().unwrap(), cd.next().unwrap());
+    match &s[0..7] {
+      "turn on" => (LightCommand::TurnOn, ab,cd),
+      "toggle " => (LightCommand::Toggle, ab,cd),
+      "turn of" => (LightCommand::TurnOff, ab,cd),
+      _ => unreachable!()
+    }
+  });
+
+  let mut lights = vec![false; 1_000_000];
+  for (cmd, (x1, y1), (x2, y2)) in valueified.clone() {
+    use LightCommand::*;
+    for x in x1..=x2 {
+      for y in y1..=y2 {
+        match cmd {
+          TurnOff => { lights[x + y * 1000] = false; },
+          TurnOn => { lights[x + y * 1000] = true; },
+          Toggle => { lights[x + y * 1000] = !lights[x + y * 1000]; }
+        }
+      }
+    }
+  }
+  let light_count = lights.into_iter().filter(|a| *a).count();
+  println!("Lit light count: {light_count}");
+
+  let mut lights = vec![0u64; 1_000_000];
+  for (cmd, (x1, y1), (x2, y2)) in valueified {
+    use LightCommand::*;
+    for x in x1..=x2 {
+      for y in y1..=y2 {
+        match cmd {
+          TurnOff if lights[x + y * 1000] != 0 => { lights[x + y * 1000] -= 1; },
+          TurnOn => { lights[x + y * 1000] += 1; },
+          Toggle => { lights[x + y * 1000] += 2 },
+          _ => ()
+        }
+      }
+    }
+  }
+  let light_count = lights.into_iter().sum::<u64>();
+  println!("Lit light count(Ancient Nordic Elvish): {light_count}");
+}
diff --git a/2015/rs/src/six.txt b/2015/rs/src/six.txt
new file mode 100644
index 0000000..c4357c6
--- /dev/null
+++ b/2015/rs/src/six.txt
@@ -0,0 +1,300 @@
+turn on 887,9 through 959,629
+turn on 454,398 through 844,448
+turn off 539,243 through 559,965
+turn off 370,819 through 676,868
+turn off 145,40 through 370,997
+turn off 301,3 through 808,453
+turn on 351,678 through 951,908
+toggle 720,196 through 897,994
+toggle 831,394 through 904,860
+toggle 753,664 through 970,926
+turn off 150,300 through 213,740
+turn on 141,242 through 932,871
+toggle 294,259 through 474,326
+toggle 678,333 through 752,957
+toggle 393,804 through 510,976
+turn off 6,964 through 411,976
+turn off 33,572 through 978,590
+turn on 579,693 through 650,978
+turn on 150,20 through 652,719
+turn off 782,143 through 808,802
+turn off 240,377 through 761,468
+turn off 899,828 through 958,967
+turn on 613,565 through 952,659
+turn on 295,36 through 964,978
+toggle 846,296 through 969,528
+turn off 211,254 through 529,491
+turn off 231,594 through 406,794
+turn off 169,791 through 758,942
+turn on 955,440 through 980,477
+toggle 944,498 through 995,928
+turn on 519,391 through 605,718
+toggle 521,303 through 617,366
+turn off 524,349 through 694,791
+toggle 391,87 through 499,792
+toggle 562,527 through 668,935
+turn off 68,358 through 857,453
+toggle 815,811 through 889,828
+turn off 666,61 through 768,87
+turn on 27,501 through 921,952
+turn on 953,102 through 983,471
+turn on 277,552 through 451,723
+turn off 64,253 through 655,960
+turn on 47,485 through 734,977
+turn off 59,119 through 699,734
+toggle 407,898 through 493,955
+toggle 912,966 through 949,991
+turn on 479,990 through 895,990
+toggle 390,589 through 869,766
+toggle 593,903 through 926,943
+toggle 358,439 through 870,528
+turn off 649,410 through 652,875
+turn on 629,834 through 712,895
+toggle 254,555 through 770,901
+toggle 641,832 through 947,850
+turn on 268,448 through 743,777
+turn off 512,123 through 625,874
+turn off 498,262 through 930,811
+turn off 835,158 through 886,242
+toggle 546,310 through 607,773
+turn on 501,505 through 896,909
+turn off 666,796 through 817,924
+toggle 987,789 through 993,809
+toggle 745,8 through 860,693
+toggle 181,983 through 731,988
+turn on 826,174 through 924,883
+turn on 239,228 through 843,993
+turn on 205,613 through 891,667
+toggle 867,873 through 984,896
+turn on 628,251 through 677,681
+toggle 276,956 through 631,964
+turn on 78,358 through 974,713
+turn on 521,360 through 773,597
+turn off 963,52 through 979,502
+turn on 117,151 through 934,622
+toggle 237,91 through 528,164
+turn on 944,269 through 975,453
+toggle 979,460 through 988,964
+turn off 440,254 through 681,507
+toggle 347,100 through 896,785
+turn off 329,592 through 369,985
+turn on 931,960 through 979,985
+toggle 703,3 through 776,36
+toggle 798,120 through 908,550
+turn off 186,605 through 914,709
+turn off 921,725 through 979,956
+toggle 167,34 through 735,249
+turn on 726,781 through 987,936
+toggle 720,336 through 847,756
+turn on 171,630 through 656,769
+turn off 417,276 through 751,500
+toggle 559,485 through 584,534
+turn on 568,629 through 690,873
+toggle 248,712 through 277,988
+toggle 345,594 through 812,723
+turn off 800,108 through 834,618
+turn off 967,439 through 986,869
+turn on 842,209 through 955,529
+turn on 132,653 through 357,696
+turn on 817,38 through 973,662
+turn off 569,816 through 721,861
+turn on 568,429 through 945,724
+turn on 77,458 through 844,685
+turn off 138,78 through 498,851
+turn on 136,21 through 252,986
+turn off 2,460 through 863,472
+turn on 172,81 through 839,332
+turn on 123,216 through 703,384
+turn off 879,644 through 944,887
+toggle 227,491 through 504,793
+toggle 580,418 through 741,479
+toggle 65,276 through 414,299
+toggle 482,486 through 838,931
+turn off 557,768 through 950,927
+turn off 615,617 through 955,864
+turn on 859,886 through 923,919
+turn on 391,330 through 499,971
+toggle 521,835 through 613,847
+turn on 822,787 through 989,847
+turn on 192,142 through 357,846
+turn off 564,945 through 985,945
+turn off 479,361 through 703,799
+toggle 56,481 through 489,978
+turn off 632,991 through 774,998
+toggle 723,526 through 945,792
+turn on 344,149 through 441,640
+toggle 568,927 through 624,952
+turn on 621,784 through 970,788
+toggle 665,783 through 795,981
+toggle 386,610 through 817,730
+toggle 440,399 through 734,417
+toggle 939,201 through 978,803
+turn off 395,883 through 554,929
+turn on 340,309 through 637,561
+turn off 875,147 through 946,481
+turn off 945,837 through 957,922
+turn off 429,982 through 691,991
+toggle 227,137 through 439,822
+toggle 4,848 through 7,932
+turn off 545,146 through 756,943
+turn on 763,863 through 937,994
+turn on 232,94 through 404,502
+turn off 742,254 through 930,512
+turn on 91,931 through 101,942
+toggle 585,106 through 651,425
+turn on 506,700 through 567,960
+turn off 548,44 through 718,352
+turn off 194,827 through 673,859
+turn off 6,645 through 509,764
+turn off 13,230 through 821,361
+turn on 734,629 through 919,631
+toggle 788,552 through 957,972
+toggle 244,747 through 849,773
+turn off 162,553 through 276,887
+turn off 569,577 through 587,604
+turn off 799,482 through 854,956
+turn on 744,535 through 909,802
+toggle 330,641 through 396,986
+turn off 927,458 through 966,564
+toggle 984,486 through 986,913
+toggle 519,682 through 632,708
+turn on 984,977 through 989,986
+toggle 766,423 through 934,495
+turn on 17,509 through 947,718
+turn on 413,783 through 631,903
+turn on 482,370 through 493,688
+turn on 433,859 through 628,938
+turn off 769,549 through 945,810
+turn on 178,853 through 539,941
+turn off 203,251 through 692,433
+turn off 525,638 through 955,794
+turn on 169,70 through 764,939
+toggle 59,352 through 896,404
+toggle 143,245 through 707,320
+turn off 103,35 through 160,949
+toggle 496,24 through 669,507
+turn off 581,847 through 847,903
+turn on 689,153 through 733,562
+turn on 821,487 through 839,699
+turn on 837,627 through 978,723
+toggle 96,748 through 973,753
+toggle 99,818 through 609,995
+turn on 731,193 through 756,509
+turn off 622,55 through 813,365
+turn on 456,490 through 576,548
+turn on 48,421 through 163,674
+turn off 853,861 through 924,964
+turn off 59,963 through 556,987
+turn on 458,710 through 688,847
+toggle 12,484 through 878,562
+turn off 241,964 through 799,983
+turn off 434,299 through 845,772
+toggle 896,725 through 956,847
+turn on 740,289 through 784,345
+turn off 395,840 through 822,845
+turn on 955,224 through 996,953
+turn off 710,186 through 957,722
+turn off 485,949 through 869,985
+turn on 848,209 through 975,376
+toggle 221,241 through 906,384
+turn on 588,49 through 927,496
+turn on 273,332 through 735,725
+turn on 505,962 through 895,962
+toggle 820,112 through 923,143
+turn on 919,792 through 978,982
+toggle 489,461 through 910,737
+turn off 202,642 through 638,940
+turn off 708,953 through 970,960
+toggle 437,291 through 546,381
+turn on 409,358 through 837,479
+turn off 756,279 through 870,943
+turn off 154,657 through 375,703
+turn off 524,622 through 995,779
+toggle 514,221 through 651,850
+toggle 808,464 through 886,646
+toggle 483,537 through 739,840
+toggle 654,769 through 831,825
+turn off 326,37 through 631,69
+turn off 590,570 through 926,656
+turn off 881,913 through 911,998
+turn on 996,102 through 998,616
+turn off 677,503 through 828,563
+turn on 860,251 through 877,441
+turn off 964,100 through 982,377
+toggle 888,403 through 961,597
+turn off 632,240 through 938,968
+toggle 731,176 through 932,413
+turn on 5,498 through 203,835
+turn on 819,352 through 929,855
+toggle 393,813 through 832,816
+toggle 725,689 through 967,888
+turn on 968,950 through 969,983
+turn off 152,628 through 582,896
+turn off 165,844 through 459,935
+turn off 882,741 through 974,786
+turn off 283,179 through 731,899
+toggle 197,366 through 682,445
+turn on 106,309 through 120,813
+toggle 950,387 through 967,782
+turn off 274,603 through 383,759
+turn off 155,665 through 284,787
+toggle 551,871 through 860,962
+turn off 30,826 through 598,892
+toggle 76,552 through 977,888
+turn on 938,180 through 994,997
+toggle 62,381 through 993,656
+toggle 625,861 through 921,941
+turn on 685,311 through 872,521
+turn on 124,934 through 530,962
+turn on 606,379 through 961,867
+turn off 792,735 through 946,783
+turn on 417,480 through 860,598
+toggle 178,91 through 481,887
+turn off 23,935 through 833,962
+toggle 317,14 through 793,425
+turn on 986,89 through 999,613
+turn off 359,201 through 560,554
+turn off 729,494 through 942,626
+turn on 204,143 through 876,610
+toggle 474,97 through 636,542
+turn off 902,924 through 976,973
+turn off 389,442 through 824,638
+turn off 622,863 through 798,863
+turn on 840,622 through 978,920
+toggle 567,374 through 925,439
+turn off 643,319 through 935,662
+toggle 185,42 through 294,810
+turn on 47,124 through 598,880
+toggle 828,303 through 979,770
+turn off 174,272 through 280,311
+turn off 540,50 through 880,212
+turn on 141,994 through 221,998
+turn on 476,695 through 483,901
+turn on 960,216 through 972,502
+toggle 752,335 through 957,733
+turn off 419,713 through 537,998
+toggle 772,846 through 994,888
+turn on 881,159 through 902,312
+turn off 537,651 through 641,816
+toggle 561,947 through 638,965
+turn on 368,458 through 437,612
+turn on 290,149 through 705,919
+turn on 711,918 through 974,945
+toggle 916,242 through 926,786
+toggle 522,272 through 773,314
+turn on 432,897 through 440,954
+turn off 132,169 through 775,380
+toggle 52,205 through 693,747
+toggle 926,309 through 976,669
+turn off 838,342 through 938,444
+turn on 144,431 through 260,951
+toggle 780,318 through 975,495
+turn off 185,412 through 796,541
+turn on 879,548 through 892,860
+turn on 294,132 through 460,338
+turn on 823,500 through 899,529
+turn off 225,603 through 483,920
+toggle 717,493 through 930,875
+toggle 534,948 through 599,968
+turn on 522,730 through 968,950
+turn off 102,229 through 674,529
diff --git a/2015/rs/src/three.rs b/2015/rs/src/three.rs
new file mode 100644
index 0000000..04db03a
--- /dev/null
+++ b/2015/rs/src/three.rs
@@ -0,0 +1,29 @@
+use std::collections::HashSet;
+
+static INPUT: &'static str = include_str!("three.txt");
+
+fn main() {
+  let valueified = INPUT.chars().map(|c| match c { '<' => (-1, 0), '>' => (1, 0), '^' => (0, 1), 'v' => (0, -1), _ => (0, 0) });
+
+  let mut visited = HashSet::new();
+  append_visits(valueified.clone(), &mut visited);
+  println!("Number visited normally: {}", visited.len());
+
+  let santa_iter = valueified.clone().step_by(2);
+  let robot_iter = valueified.skip(1).step_by(2);
+
+  let mut visited = HashSet::new();
+  append_visits(santa_iter.clone(), &mut visited);
+  append_visits(robot_iter.clone(), &mut visited);
+  println!("Number visited w/ robot: {}", visited.len());
+}
+
+fn append_visits<I: Iterator<Item = (i32, i32)>>(iter: I, visited: &mut HashSet<(i32, i32)>) {
+  let (mut x, mut y) = (0, 0);
+  visited.insert((0, 0));
+  for (move_x, move_y) in iter {
+    x += move_x;
+    y += move_y;
+    visited.insert((x, y));
+  }
+}
diff --git a/2015/rs/src/three.txt b/2015/rs/src/three.txt
new file mode 100644
index 0000000..55f286f
--- /dev/null
+++ b/2015/rs/src/three.txt
@@ -0,0 +1 @@
+^><^>>>^<^v<v^^vv^><<^<><<vv^<>^<^v>^vv<>v><vv^^<>>^^^v<<vv><<^>^<^v<^>^v><<<v^<v<<<v<<vv<v<^><^>><>v>v^<<v^^<^v<><^>^<<^^^>v>>v^^<v>>^>vv><v>>^>>v^>^v>^<^^v>^>^^v<v>^^<v<>>v^^v><^><^<<>v^<^<^v<v>v^>>>v^v^>^<>^v<^^vv<v>^>^<>^^<vv^<><<v<^<^^>vv<>^>v<^>^v>v^>^v<>^><>><vv<>v^v<><>v^v>>>>v^^>^><^^<v<^><^<v>>^v^v<>v<<<^<<vvvv<<v^vv^>v^^^<^^^<v>>v<^v>>>>>v<^^^^>v<^<><v>>>>><v>>v^vvvv^^<v^<>^v<^v^>v><^>^v<<>>vv^>v>v^^>vv^<^vvv<>><>><><^^^<v<>^<^^^<v><^v>>v>^v<v^vv^<>^^^>v^^^v>>^v^^<^>>^>^<<v>>>^^<>>^vv>v^<^>>>><v<><><^^v<><<<<^^<>>^<vvv^><>v<v<<<<><v<<v>v<v^><vv<v^>^<^>v^^><^v>^^>v<>^v^<>^vv^><v^^vv>vvv>v>^<vv^>>^>>^>><>>>^^^^v<vv>^<>v^^><v^>^<>v<^^v><v<<><^v><>^^^^^v^v>>^^v><<><<vv>^^^^><^>v>><<<^v>v^^>^v^<^^v>v<^<<>>^v<<<v<<>>v<^v^><vv<v^v>v^<v>><v>^v<<<vv^>v<v>>v>>v><v><v^>v^^v>^v^>>>><>^>v>^v^>>>>v^<<vv<^v><<>v<v^<^^<<v<^v^^v^>vv><vv<v^<^>><^^>^<><^^<v<><^v^v^<^^>^<v><^<v>v^<<<^^v<v>^v>>><>^^>vv<<^v^<<<<^^>>>v>v<<<>^^>>>v>^>v>vv<<>^<^><v^>^^<^<v<<v<^>>^v^<vvv><>v^><<v>^^<v^vv^^^<vvv^<^>^>vv>><^v<^<<v<><<><<^^<><><vv>v>^<v>>^<>>^^v>vv^<^^v>><^vv^<<v^^><<>vv<v<><v<><v^^^v^v>^v<^<>v^^>><>^<^<v^<v^v^>v<<<^<<^>>>^^<^^v>v^<v>vvvv>v<>><^>^<<<<v^<v<>v^^^v<>v>^<v<<^^v^^<>^<<v^^<^<v>v>>v>>v^>^<vv<<<<<^<><>v><>>>v^>^v<^<><<v<^v^^<^<><^>^^^>^><>^><<vv>^<>vv<<v^v<<<<<>>>v<vv>^v>^>^>^<^><>v<><>>>^^<v>^<^v>>^<><v^><v^>>>v<v^^vvv^><v<v>v^>vvvv>>><^>v<>^^^>v>>v^<v<>v^>^<v^>^<<^>^>>v<<><<v^^>>v^<v^<^v^>^>v^><<^<v>v^<v>>^^<<v>v><<<^v^<>^<>^>>^<<v>^^<>^v<>v^>>><<v>><v^>^><v^<><v><>><v^<>vv>v^<^^^>v>^^<vv>>^v<><>>><>><^<>>v>v^^>^^<^^>^>>v>vv^^v<^<^v><vv<v<^>><<vvv<<><^>^v>^^^<<>v^<v<v><<v>^^v<<<>^^vv<^>vv>^>^<><<>vv<^>v^vv>^^^v><<^vv>^v<><v^^^^v^>vv^^<^<>^^v^<^vv<v<vv<>v>v^^<>^^>^^>^<><<^v>^><^^vvvv<><>^<v^^>v<>^><>v>><>vv^<<><<>><>v<^>^v>>^^v><<<>>^<^v^<v<<<v^>^^<^<><><^><<<<^<vv><v<<><vvv^^><vv>^<<vv<<<^v<>>><><>>v><<<v>vvvv^^vv<v>><<^v^vvv><><vv>v><>v<<<^<v^>><^^>v^<v>><v>^^^v^v>><<<v<^^>>^v<>v^<vv^^<<v<v>v<<<<^^^v^v<<>>>v>>vv>^^<><^v<v><>>v^>>>>>^>v^v^<^v^v^vvv>v<v<^>vv^<<v>vv>>v^^vv<^v>>>>vv<>v<>^^vv^<v>v^>>vvv<<<v<<^vv^^^^>v>v>^><<<^>v^><v<^<<<v>^v^^^><<><<<^^<^^<>^<v>^<v<<v<^^vv>v<^v><v><v<>^v<^<v<^<v^v><v>><v<v<<>^<v<>>><>^v^v<<^><v^<<v<v^>^>v><^>^vv^^<v<v<vv<v>^v^v^>^<<>>>>>v^<>^>v^vv^><<>>^^<>v^><v>^vvv^>v^v><>^><<>v>v<^<^><^^vv<<><>>v>>v><vv>>^v<<>^vv<>^vv>v>v>^>^>>><><<>v<v>^<<^v^^<<<><v>>vv<^<vv<vv^<<v<<^v><<>v<^^^<<^v^>^v>^^^v^v>>>v>v^v>^>^vv<^^<<vv^>^<<<vv>v^<><<^vvv^^><>vv^v>v>^><<^^^^vvv^<vvv>><^v<^>^<>>^<v<<vv>>><v>vv^<>><v^<v>^v>^>v>^<^<^^^<<vvvv^>>>>>>>v><vv>^<>^^v^><>><^v^^<v^v<<<<v^>><>v^v<vv<><^<<<<^>^^>vv>><^v<v^v<<>^vvv>v^^><^^<^<>>^^v^vv<>v<^<<<v^^^><v<vv<<>v>v<>^v^><v^vv^v^^v<^^v^^v><>v<^v>><<^<^v^>><<vv<<^>^<<v^<>^><>v><vv^v>>^<v<<<^>vv<^v>^>v<<v>^>>^>>v^<v<v>>^v<^v^v><<><>^><<<><v<vvvv<v^<v^v><>^<>^^^^v>^>^vvvvv>v>>v><<vv<<v<><<^><<^v><<v<<<v><vv<^>^v>>>>^v<^v<<>>^>^<<vv^<^>v>><<^>^>^v><><>^><<v<>v^><<^v^<^^><^^v^<<^v^^>>^v^<^><vv>v^^<<^^^<><>^>v^v>v^>^v^vv>^^>>>>^^<^>>>^^v<vv<><^^<vvv<^^^vv>v<v<v>><<<>^>^^>^>^v<<<<>>^<<>><v>>v>^^<^v<>v<>v^>v^><^<^^><v^^v>^^vv<v<<>><<vv<>>v>^<<<<v<<v>^><^^<^<^<v^<<^^v>^v<^>v^v^<v^vv^>^^><^>v^v>>^^v^><vv<v<v<v>>>>><<><v><v^v^<v^<^^<v<>^>v>v<>>>v>^^^^>><v^v^^v<<<>v^<<^<v>>>><^v^<<><v<>>v><><v<v^v>^v^^<v<^<^^v>><<vv<<vv><>>^>^>vv<^<>^vvv^v<v^^<>v^v>^^<<<<<>^v^>^<>v^^<>v^v<vv>^<>vv^<^vv>><v^^vvvvv>><<>v<vv^<^<vv^v^<>^^<v^<vv^<v^v^v<<^>^>^>^^>>>vvv>^>v>v>>>^>vv^><>^><>v>^^<v^>^><<v>><<<>>v<vvvv^>^v<^<>^<v>^<>^^<<><>^v<><>>>^vv<^<<^<^v>v<<<<<^^v<^v<><v<<><^>v>^v>>^v^><^^^^v<><><>vv^<>vv<^v<^^><v^<^><^^v^v^<^^<<><v>v<v<v^<<^v><>v^v<^>vvv><<^v>>v><><v<<^>>>v<^>>v>^<>><>^<v^v^<vv<<^>v<^^>^<^v<^<<^^v<>>^>^>^v^^v^v<v^^vv^<v>>v><vv^vv>v<>v^>v^^>^^>><v><v^<<><<>><<^^>><^v<v<><<><<><v<v^<^<v>>>><v^^v^^>>>^^^^^<<vv<^><>^<<<vv^^^>^><<<v<^v>^<v<^>^vvv<<>vv><<>v>v^v>>>>>^<>><^^^><<<<v><<vv>>>v<^<vv^v^<<v>>>>^^vvv>v<>><v>>>v>>^v^vvv<<>vvv<<^^^<>vv^^v<<>^^^>>^<^v^<^^>v^><v>>^<<^v<<vv<vv>v^>>^>v^><^><>^>>>vv>><^^^>vv<<^^vv><^<>^>^^<^<>>^vv^>>^v><>v^>>><<<^^<^>^>v<^>^<^^<>>><^^<>^v^<<vvv<v><>vvv><v>v^v<<^<v>^^><<^vv^v>v>v<<^v^<<<>^><><vvv>v>^vv^v<>vv^>^^<^>^>v^^<vv^>v><v<<<><>>^v<^<><><^<v^^<<^<v>vv<><<>v^<v^>^>^^<><<>^<^<<v^^v<v^<><<>v>><^<<>^>^v^v<v^v><^>>^v<^>v<<>^^^<^v>>>^<v>vvvv<<v^<^^>vvvv>v<>v<v><vvvvv>^<><>vvv<>^<<>^>>>>v^<^<><^v>v^>>v><>^><<v^>^<<>^>^v^<v^^>>^v><v>^<v><>v^<^^>v>^>>>v^v>>>^<>^<>>>>>v>>vv^v<><<<><><v><<vv<<v<><>>vv<^<vv>^v<<>v^v<^v<><v>>^v>>vvv^^v>>v>^>^>v><v><^>^^<<>^v<^<<<<^>v<^>>v^<^v>^v<<>^>^vvv<^^vv>^vv>vv<>>v>v<v>>v^<<<<<^^v^>v>^<<<v^v>>v<v><vvv><v>^<vv><<>>^<^>^^<>>>>^<^v<>v^^>^<^^v<^><>><v>>^v^vv<^v<^><<vvv<>><>><^^>^<^v^<^<>v<<<^v>v^^^<>v^<v^>^v^>><>^^<v<^><<^^v^<>^<^vv>>><^v><v^>vv<^v<<<v^>>v>v^v>^<v>v<^<>v^vvv>^vv<<<<v><^><v>>^^>><^v><<^>v^^<<v^^<^<><<<<>^<v<^v^>v<<^^>v<<<<<vvv<v<^>^>^>^>>^>>>v^<<v>>^^v><vv<^v<v<^^^>>>^vvv<^v<>>>vv>^^><^v>vv^>>v>v^<>^<vv>^>^<<^>^^^>>^vv>^^>vvvv<>>^^^^>>>v>v^^>vv>vv^<<>^><^<v^vvvv><v<><v>><<<v<v<<^v><vv^vv^<>>>^>^<v<^v<>><^<vv^^><v>v^>v^<><v^vvv>^>v^^v^>^^>v<<<<^<<^>>v>v^^^<<<v>>>^^v>v<v><<<<^^^v>^vv^>><>^v<v<<^^<<<<><>>>v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diff --git a/2015/rs/src/two.rs b/2015/rs/src/two.rs
new file mode 100644
index 0000000..572c556
--- /dev/null
+++ b/2015/rs/src/two.rs
@@ -0,0 +1,31 @@
+static INPUT: &'static str = include_str!("two.txt");
+
+fn main() {
+  let valueified = INPUT
+    .split('\n')
+    .filter(|s| !s.is_empty())
+    .map(|line| {
+      let mut nums = line
+        .split('x')
+        .map(str::parse::<u32>)
+        .map(Result::unwrap);
+      (nums.next().unwrap(), nums.next().unwrap(), nums.next().unwrap())
+     });
+
+  let final_area: u32 = valueified.clone()
+    .map(|(w, l, h)| {
+      let sides = [w*h, l*w, h*l];
+      sides.into_iter().min().unwrap() + sides.into_iter().sum::<u32>() * 2
+    })
+    .sum();
+  println!("Final area: {final_area}");
+
+  let ribbon_length: u32 = valueified
+    .map(|(w, l, h)| {
+      let mut nums = [w, l, h];
+      nums.sort();
+      (nums[0] + nums[1]) * 2 + (w * l * h)
+    })
+    .sum();
+  println!("Ribbon length: {ribbon_length}");
+}
diff --git a/2015/rs/src/two.txt b/2015/rs/src/two.txt
new file mode 100644
index 0000000..5f3335f
--- /dev/null
+++ b/2015/rs/src/two.txt
@@ -0,0 +1,1000 @@
+29x13x26
+11x11x14
+27x2x5
+6x10x13
+15x19x10
+26x29x15
+8x23x6
+17x8x26
+20x28x3
+23x12x24
+11x17x3
+19x23x28
+25x2x25
+1x15x3
+25x14x4
+23x10x23
+29x19x7
+17x10x13
+26x30x4
+16x7x16
+7x5x27
+8x23x6
+2x20x2
+18x4x24
+30x2x26
+6x14x23
+10x23x9
+29x29x22
+1x21x14
+22x10x13
+10x12x10
+20x13x11
+12x2x14
+2x16x29
+27x18x26
+6x12x20
+18x17x8
+14x25x1
+30x15x22
+17x18x7
+28x23x24
+15x12x25
+14x7x20
+29x23x8
+24x5x22
+6x22x8
+1x15x26
+14x5x1
+24x28x28
+17x23x23
+4x15x7
+23x8x11
+6x15x1
+23x18x13
+17x1x26
+23x13x17
+2x18x8
+22x22x1
+10x22x6
+28x29x20
+22x21x25
+14x8x23
+12x30x14
+8x7x5
+3x30x15
+4x3x29
+25x18x3
+16x7x16
+4x3x8
+9x16x30
+20x28x3
+28x24x6
+4x18x2
+23x18x5
+22x4x30
+15x30x9
+7x12x12
+3x22x29
+12x1x9
+9x2x25
+17x11x10
+25x24x7
+7x27x26
+26x4x12
+29x2x26
+19x24x12
+23x23x3
+26x28x16
+18x4x16
+25x30x18
+29x19x19
+16x3x27
+29x25x29
+18x19x5
+14x21x30
+19x13x26
+19x10x15
+9x4x7
+18x6x6
+24x25x29
+9x12x27
+15x3x22
+30x17x21
+18x19x28
+9x11x12
+8x28x22
+11x3x4
+28x17x20
+24x18x15
+11x12x13
+6x19x24
+28x4x5
+28x22x23
+13x29x2
+9x16x15
+29x28x1
+10x18x30
+19x11x12
+26x28x25
+23x17x13
+25x1x21
+17x1x27
+17x27x28
+28x13x15
+14x13x25
+11x29x7
+22x29x5
+13x6x14
+23x18x13
+25x7x17
+18x9x20
+21x11x2
+28x11x13
+13x25x1
+19x29x25
+16x29x4
+10x21x10
+7x25x17
+5x9x3
+1x15x6
+8x27x29
+23x6x30
+22x22x29
+6x20x30
+26x25x29
+10x19x19
+20x30x9
+5x30x24
+17x10x27
+30x14x30
+8x17x4
+7x18x6
+3x5x4
+24x17x15
+14x20x17
+22x27x15
+18x14x15
+23x9x11
+21x16x29
+7x18x21
+9x3x29
+10x13x4
+2x30x4
+23x20x4
+8x22x21
+29x28x4
+13x16x25
+21x9x11
+7x26x26
+13x23x30
+19x7x10
+9x23x21
+21x9x17
+9x21x15
+20x29x22
+23x13x15
+19x25x2
+12x11x30
+20x21x6
+21x6x17
+24x26x9
+29x21x29
+29x26x16
+6x16x1
+2x12x6
+6x7x20
+7x2x22
+6x22x4
+13x11x27
+25x27x14
+11x8x6
+26x11x14
+30x3x29
+27x21x20
+15x16x26
+6x22x10
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