Cargo.lock

@@ -1,7 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "aoc23"
-version = "0.1.0"

rustfmt.toml

@@ -1 +0,0 @@
-tab_spaces = 2

src/main.rs

@@ -1,102 +1,3 @@
-use std::io;
-
-fn get_calibration_digits() -> u32 {
-  let mut buffer = String::new();
-  let mut sum = 0;
-  while io::stdin().read_line(&mut buffer).unwrap() > 0 {
-    let nums: Vec<u32> = buffer.chars().filter_map(|c| c.to_digit(10)).collect();
-    sum += nums.first().unwrap() * 10 + nums.last().unwrap();
-    buffer = String::new();
-  }
-  sum
-}
-
-const NUMBERS: [&'static str; 9] = [
-  "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",
-];
-
-enum SearchDir {
-  First,
-  Last,
-}
-
-fn get_digit(line: &String, dir: SearchDir) -> u32 {
-  let mut first: usize = 0;
-  let mut index: Option<usize> = None;
-  for n in 1..=9 {
-    let f = match &dir {
-      SearchDir::First => line.find(&n.to_string()),
-      SearchDir::Last => line.rfind(&n.to_string()),
-    };
-    if f == None {
-      continue;
-    }
-    let found = f.unwrap();
-    match index {
-      None => {
-        index = f;
-        first = n;
-      }
-      Some(i) => match &dir {
-        SearchDir::First => {
-          if found < i {
-            index = f;
-            first = n;
-          }
-        }
-        SearchDir::Last => {
-          if found > i {
-            index = f;
-            first = n;
-          }
-        }
-      },
-    }
-  }
-  for (num, num_str) in NUMBERS.iter().enumerate() {
-    let f = match &dir {
-      SearchDir::First => line.find(num_str),
-      SearchDir::Last => line.rfind(num_str),
-    };
-    if f == None {
-      continue;
-    }
-    let found = f.unwrap();
-    match index {
-      None => {
-        index = f;
-        first = num + 1;
-      }
-      Some(i) => match &dir {
-        SearchDir::First => {
-          if found < i {
-            index = f;
-            first = num + 1;
-          }
-        }
-        SearchDir::Last => {
-          if found > i {
-            index = f;
-            first = num + 1;
-          }
-        }
-      },
-    }
-  }
-  first.try_into().unwrap()
-}
-
-fn get_calibration_digits_alnum() -> u32 {
-  let mut buffer = String::new();
-  let mut sum = 0;
-  while io::stdin().read_line(&mut buffer).unwrap() > 0 {
-    let val = (get_digit(&buffer, SearchDir::First) * 10) + get_digit(&buffer, SearchDir::Last);
-    sum += val;
-    buffer = String::new();
-  }
-  sum
-}
-
 fn main() {
-  println!("Sum: {}", get_calibration_digits_alnum());
+    println!("Hello, world!");
 }