chore: Add more functions to rust template

template/src/main.rs

@@ -1,20 +1,47 @@
 use aoc;
 
-fn parse_num<T: std::str::FromStr>(str: &str) -> T {
-    match str.trim().parse::<T>() {
-        Ok(n) => n,
-        _ => panic!("Error parsing"),
-    }
-}
-
 fn solve(raw: String) -> () {
     println!("{}", raw);
 }
 
 fn main() {
     let input = aoc::get_input({{year}}, {{day}});
 
-    // let example_input = std::fs::read_to_string("").expect("Error reading input");
+    // let input = std::fs::read_to_string("").expect("Error reading input");
 
     solve(input);
 }
+
+// Utilities
+#[allow(dead_code)]
+fn normal(x: usize, y: usize, width: usize) -> usize {
+    x + y * width
+}
+
+#[allow(dead_code)]
+fn rev_normal(norm: usize, width: usize) -> (usize, usize) {
+    (norm % width, norm / width)
+}
+
+#[allow(dead_code)]
+fn parse_num<T: std::str::FromStr>(str: &str) -> T {
+    match str.trim().parse::<T>() {
+        Ok(n) => n,
+        _ => panic!("Error parsing"),
+    }
+}
+#[allow(dead_code)]
+fn to_int(bin: &str) -> u32 {
+    match u32::from_str_radix(bin, 2) {
+        Ok(n) => n,
+        _ => panic!("Error parsing binary to integer"),
+    }
+}
+
+#[allow(dead_code)]
+fn string_vec<T: std::string::ToString>(vec: &Vec<T>, separator: &str) -> String {
+    vec.iter()
+        .map(|x| x.to_string())
+        .collect::<Vec<String>>()
+        .join(separator)
+}