Quest 1 / Part 1

.gitignore

@@ -18,4 +18,8 @@ Cargo.lock
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
+#.idea/
+
+# Added by cargo
+
+/target

Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "ec"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

data/quest-1-part-1.txt

@@ -0,0 +1 @@
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src/bin/quest-1-part-1.rs

@@ -0,0 +1,34 @@
+use std::{collections::HashMap, path::PathBuf};
+
+type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
+
+fn main() -> Result<()> {
+    let file_path = PathBuf::from("./data/quest-1-part-1.txt");
+    let data = std::fs::read_to_string(file_path)?;
+    let counter = quest_part_1(&data);
+    println!("Quest 1 / Part 1: {counter}");
+    Ok(())
+}
+
+fn quest_part_1(data: &str) -> i32 {
+    let table = HashMap::from([('A', 0), ('B', 1), ('C', 3)]);
+    let mut counter = 0;
+    for beast in data.chars() {
+        if let Some(potions) = table.get(&beast) {
+            counter += potions;
+        }
+    }
+    counter
+}
+
+#[cfg(test)]
+mod tests {
+    use super::quest_part_1;
+
+    #[test]
+    fn sample() {
+        let data = "ABBAC";
+        let result = quest_part_1(data);
+        assert_eq!(result, 5);
+    }
+}