commit 658f3bfca5616db8fc512e02dd49e587066cfe02
Author: Daniel Yrovas <dan@danielyrovas.com>
Date:   Thu Nov 10 16:58:11 2022 +1100

    initial commit

diff --git a/01-sonar-sweep/.gitignore b/01-sonar-sweep/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/01-sonar-sweep/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/01-sonar-sweep/Cargo.lock b/01-sonar-sweep/Cargo.lock
new file mode 100644
index 0000000..3e571b9
--- /dev/null
+++ b/01-sonar-sweep/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "sonar-sweep"
+version = "0.1.0"
diff --git a/01-sonar-sweep/Cargo.toml b/01-sonar-sweep/Cargo.toml
new file mode 100644
index 0000000..cc9d9a1
--- /dev/null
+++ b/01-sonar-sweep/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "sonar-sweep"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/01-sonar-sweep/LICENSE b/01-sonar-sweep/LICENSE
new file mode 100644
index 0000000..7fb39ed
--- /dev/null
+++ b/01-sonar-sweep/LICENSE
@@ -0,0 +1,19 @@
+The MIT License (MIT)
+Copyright (c) 2021 danielyrovas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/01-sonar-sweep/depths.txt b/01-sonar-sweep/depths.txt
new file mode 100644
index 0000000..42f77f8
--- /dev/null
+++ b/01-sonar-sweep/depths.txt
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diff --git a/01-sonar-sweep/puzzle.md b/01-sonar-sweep/puzzle.md
new file mode 100644
index 0000000..51b5be3
--- /dev/null
+++ b/01-sonar-sweep/puzzle.md
@@ -0,0 +1,3 @@
+### puzzle
+find rate of increase of depth
+count number of times a depth measurement increases from the previous measurement
diff --git a/01-sonar-sweep/src/main.rs b/01-sonar-sweep/src/main.rs
new file mode 100644
index 0000000..2839aff
--- /dev/null
+++ b/01-sonar-sweep/src/main.rs
@@ -0,0 +1,52 @@
+#![allow(dead_code, unused_imports)]
+
+use std::{io::{stdin, Read}, str::FromStr};
+
+fn main() {
+  let depths = read_depths();
+  let mut n = 0;
+  let mut prev = 0;
+  let mut f: Option<u32> = None;
+  let mut p: Option<u32> = None;
+  let mut window;
+  for &depth in depths.iter() {
+    if f == None { f = Some(depth); continue; }
+    if p == None { p = f; continue; }
+    window = f.unwrap() + p.unwrap() + &depth;
+    // update variables that store prior 2 iterations state
+    f = p;
+    p = Some(depth);
+    if prev == 0 {
+      println!("{}, (no prior data)", window)
+    } else if window > prev {
+      n += 1;
+      println!("{}, (increased)", window);
+    } else if prev > window {
+      println!("{}, (decreased)", window)
+    } else {
+      println!("{}, (no change)", window)
+    }
+    prev = window;
+  }
+  println!("number of increases: {}", n);
+}
+
+fn read_depths() -> Vec<u32> {
+  let mut s = String::new();
+  stdin().read_to_string(&mut s).unwrap();
+  let result = s
+    .lines()
+    .map(u32::from_str)
+    .collect::<Result<Vec<_>, _>>();
+  result.unwrap()
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[test]
+  fn print_input() {
+    read_depths();
+  }
+}
diff --git a/02-dive!/.gitignore b/02-dive!/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/02-dive!/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/02-dive!/Cargo.lock b/02-dive!/Cargo.lock
new file mode 100644
index 0000000..7b1e04e
--- /dev/null
+++ b/02-dive!/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "dive"
+version = "0.1.0"
diff --git a/02-dive!/Cargo.toml b/02-dive!/Cargo.toml
new file mode 100644
index 0000000..c106b20
--- /dev/null
+++ b/02-dive!/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "dive"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/02-dive!/LICENSE b/02-dive!/LICENSE
new file mode 100644
index 0000000..7fb39ed
--- /dev/null
+++ b/02-dive!/LICENSE
@@ -0,0 +1,19 @@
+The MIT License (MIT)
+Copyright (c) 2021 danielyrovas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/02-dive!/directions.txt b/02-dive!/directions.txt
new file mode 100644
index 0000000..83b7ae1
--- /dev/null
+++ b/02-dive!/directions.txt
@@ -0,0 +1,1000 @@
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diff --git a/02-dive!/src/main.rs b/02-dive!/src/main.rs
new file mode 100644
index 0000000..78cf3da
--- /dev/null
+++ b/02-dive!/src/main.rs
@@ -0,0 +1,33 @@
+#![allow(dead_code, unused_imports)]
+use std::fs::File;
+use std::path::Path;
+use std::io::{self, BufRead};
+fn main() {
+  let mut h = 0;
+  let mut v = 0;
+  let mut aim = 0;
+  if let Ok(lines) = read_lines("directions.txt") {
+    for line in lines {
+      if let Ok(val) = line {
+        println!("{}", val);
+        //shadow assignment
+        let val: Vec<&str> = val.split(' ').collect();
+        let cmd = val[0];
+        let n = val[1].parse::<u32>().unwrap();
+        match cmd {
+          "forward" => {h += n; v += n * aim },
+          "down" => aim += n,
+          "up" => aim -= n,
+          _ => println!("not a command"),
+        }
+      }
+    }
+  }
+  println!("h: {}, v: {}, final position: {}", h, v, h * v );
+}
+
+fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>> where P: AsRef<Path>, 
+{
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}
diff --git a/03-binary-diagnostic/.gitignore b/03-binary-diagnostic/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/03-binary-diagnostic/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/03-binary-diagnostic/Cargo.lock b/03-binary-diagnostic/Cargo.lock
new file mode 100644
index 0000000..5820ae6
--- /dev/null
+++ b/03-binary-diagnostic/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "binary-diagnostic"
+version = "0.1.0"
diff --git a/03-binary-diagnostic/Cargo.toml b/03-binary-diagnostic/Cargo.toml
new file mode 100644
index 0000000..4c2b6fa
--- /dev/null
+++ b/03-binary-diagnostic/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "binary-diagnostic"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/03-binary-diagnostic/LICENSE b/03-binary-diagnostic/LICENSE
new file mode 100644
index 0000000..7fb39ed
--- /dev/null
+++ b/03-binary-diagnostic/LICENSE
@@ -0,0 +1,19 @@
+The MIT License (MIT)
+Copyright (c) 2021 danielyrovas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/03-binary-diagnostic/diagnostics.txt b/03-binary-diagnostic/diagnostics.txt
new file mode 100644
index 0000000..7320494
--- /dev/null
+++ b/03-binary-diagnostic/diagnostics.txt
@@ -0,0 +1,1000 @@
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diff --git a/03-binary-diagnostic/src/main.rs b/03-binary-diagnostic/src/main.rs
new file mode 100644
index 0000000..b97c070
--- /dev/null
+++ b/03-binary-diagnostic/src/main.rs
@@ -0,0 +1,62 @@
+#![allow(dead_code, unused_imports)]
+use std::fmt::Binary;
+use std::fs::File;
+use std::path::Path;
+use std::io::{self, BufRead};
+
+fn main() {
+  let mut data: Vec<Vec<u32>> = Vec::new();
+  if let Ok(lines) = read_lines("diagnostics.txt") {
+    let mut vecinit = false;
+    for line in lines {
+      if let Ok(l) = line {
+        if !vecinit {
+          for _ in l.chars() {
+            data.push(Vec::new());
+          }
+          vecinit = true;
+        }
+        //println!("{}", l);
+        let mut i = 0;
+        for c in l.chars() {
+          data[i].push(c as u32 - 48);
+          i += 1;
+        }
+      }
+    }
+  }
+  let mut gama = Vec::new();
+  for line in &data {
+    gama.push(
+      if line.iter().sum::<u32>() < data[0].len() as u32 / 2 {
+        0
+      } else {
+        1
+      }
+    );
+  }
+  let lifesupport = if data[0].iter().sum::<u32>() < data[0].len() as u32 / 2 {
+    0
+  } else {
+    1
+  };
+  let co2scrub = if data[0].iter().sum::<u32>() > data[0].len() as u32 / 2 {
+    0
+  } else {
+    1
+  };
+  println!("{}:{}", lifesupport,co2scrub);
+  let mut gamarate = 0;
+  let mut epsilonrate = 0;
+  for i in 0..gama.len() {
+    gamarate += (2_u32.pow(i.try_into().unwrap())) * gama[gama.len() - i - 1];
+    epsilonrate += (2_u32.pow(i.try_into().unwrap())) * if gama[gama.len() - i - 1] == 1 { 0 } else { 1 };
+  }
+  println!("power consumption: {}", gamarate * epsilonrate);
+}
+
+fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
+  where P: AsRef<Path> {
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}
diff --git a/04-giant-squid/.gitignore b/04-giant-squid/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/04-giant-squid/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/04-giant-squid/Cargo.lock b/04-giant-squid/Cargo.lock
new file mode 100644
index 0000000..74be640
--- /dev/null
+++ b/04-giant-squid/Cargo.lock
@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "anyhow"
+version = "1.0.51"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b26702f315f53b6071259e15dd9d64528213b44d61de1ec926eca7715d62203"
+
+[[package]]
+name = "giant-squid"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+]
diff --git a/04-giant-squid/Cargo.toml b/04-giant-squid/Cargo.toml
new file mode 100644
index 0000000..b267570
--- /dev/null
+++ b/04-giant-squid/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "giant-squid"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.51"
diff --git a/04-giant-squid/bingo.txt b/04-giant-squid/bingo.txt
new file mode 100644
index 0000000..788b56b
--- /dev/null
+++ b/04-giant-squid/bingo.txt
@@ -0,0 +1,601 @@
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diff --git a/04-giant-squid/src/main.rs b/04-giant-squid/src/main.rs
new file mode 100644
index 0000000..129f9b0
--- /dev/null
+++ b/04-giant-squid/src/main.rs
@@ -0,0 +1,18 @@
+#![allow(dead_code, unused_imports)]
+use std::str::FromStr;
+use anyhow::Result;
+
+fn main() {
+    println!("Hello, world!");
+}
+
+fn read_one_per_line<T>(path: &str) -> Result<Vec<T>>
+where
+    T: FromStr,
+{
+    Ok(std::fs::read_to_string(path)?
+        .lines()
+        .filter_map(|line| line.parse::<T>().ok())
+        .collect())
+}
+
diff --git a/2021/.gitignore b/2021/.gitignore
new file mode 100644
index 0000000..96ef6c0
--- /dev/null
+++ b/2021/.gitignore
@@ -0,0 +1,2 @@
+/target
+Cargo.lock
diff --git a/2021/Cargo.toml b/2021/Cargo.toml
new file mode 100644
index 0000000..f09e66a
--- /dev/null
+++ b/2021/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "advent-of-code-2021"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+name = "aoc"
+path = "src/lib.rs"
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0"
+itertools = "0.10"
diff --git a/2021/data/1.depths b/2021/data/1.depths
new file mode 100644
index 0000000..42f77f8
--- /dev/null
+++ b/2021/data/1.depths
@@ -0,0 +1,2000 @@
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diff --git a/2021/data/4.bingo b/2021/data/4.bingo
new file mode 100644
index 0000000..788b56b
--- /dev/null
+++ b/2021/data/4.bingo
@@ -0,0 +1,601 @@
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diff --git a/2021/src/bin/01-sonar-sweep.rs b/2021/src/bin/01-sonar-sweep.rs
new file mode 100644
index 0000000..13951f8
--- /dev/null
+++ b/2021/src/bin/01-sonar-sweep.rs
@@ -0,0 +1,20 @@
+#![allow(dead_code, unused_imports)]
+use anyhow::Result;
+use itertools::Itertools;
+
+use std::{io::{stdin, Read}, str::FromStr};
+
+fn descending_window(size: usize) -> Result<usize> {
+    Ok(aoc::read_one_per_line::<u32>("./data/1.depths")?
+        .windows(size)
+        .filter(|win| win[0] < win[size - 1])
+        .collect_vec()
+        .len())
+}
+
+fn main() -> Result<()> {
+    println!("Part 1: {}", descending_window(2)?);
+    println!("Part 2: {}", descending_window(4)?);
+
+    Ok(())
+}
diff --git a/2021/src/bin/04-giant-squid.rs b/2021/src/bin/04-giant-squid.rs
new file mode 100644
index 0000000..e69de29
diff --git a/2021/src/lib.rs b/2021/src/lib.rs
new file mode 100644
index 0000000..f100ab7
--- /dev/null
+++ b/2021/src/lib.rs
@@ -0,0 +1,34 @@
+use anyhow::Result;
+use std::str::FromStr;
+
+pub fn read_one_per_line<T>(path: &str) -> Result<Vec<T>>
+where
+    T: FromStr,
+{
+    Ok(std::fs::read_to_string(path)?
+        .lines()
+        .filter_map(|line| line.parse::<T>().ok())
+        .collect())
+}
+
+pub fn read_vec_per_line<T, F>(path: &str, f: F) -> Result<Vec<Vec<T>>>
+where
+    T: FromStr,
+    F: Fn(char) -> Option<T>,
+{
+    Ok(std::fs::read_to_string(path)?
+        .lines()
+        .map(|line| line.chars().map(|c| f(c).unwrap()).collect())
+        .collect())
+}
+
+pub fn read_one_line<T>(path: &str, sep: &str) -> Result<Vec<T>>
+where
+    T: FromStr,
+{
+    Ok(std::fs::read_to_string(path)?
+        .trim()
+        .split(sep)
+        .filter_map(|c| c.parse::<T>().ok())
+        .collect())
+}