create 2023 folder

2023/daily-template/Cargo.toml

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+[package]
+name = "{{project-name}}"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+color-eyre = { workspace = true }

2023/daily-template/src/bin/part1.rs

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+use color_eyre::Result;
+use {{crate_name}}::part1::process;
+
+fn main() -> Result<()> {
+    let file = include_str!("../../input1.txt");
+    let result = process(file)?;
+    println!("{}", result);
+    Ok(())
+}

2023/daily-template/src/bin/part2.rs

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+use color_eyre::Result;
+use {{crate_name}}::part2::process;
+
+fn main() -> Result<()> {
+    let file = include_str!("../../input2.txt");
+    let result = process(file)?;
+    println!("{}", result);
+    Ok(())
+}

2023/daily-template/src/lib.rs

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+pub mod part1;
+pub mod part2;

2023/daily-template/src/part1.rs

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+use color_eyre::Result;
+
+pub fn process(input: &str) -> Result<()> {
+    todo!("day xx - part 1");
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_process() -> Result<()> {
+        let input = "";
+        todo!("haven't built test yet");
+        assert_eq!("", process(input)?);
+        Ok(())
+    }
+}

2023/daily-template/src/part2.rs

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+use color_eyre::Result;
+
+pub fn process(input: &str) -> Result<()> {
+    todo!("day xx - part 2");
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_process() -> Result<()> {
+        let input = "";
+        todo!("haven't built test yet");
+        assert_eq!("", process(input)?);
+        Ok(())
+    }
+}