finish day 21

Author: coding-by-sea

examples/day_21.rs

@@ -0,0 +1,9 @@
+use aoc_2022::day_21::{parsing, part_1, part_2};
+use aoc_2022::utils;
+
+fn main() {
+    let lines = utils::read_lines("inputs/day_21").unwrap();
+    let map = parsing(&lines);
+    println!("part 1: {}", part_1(map.clone()));
+    println!("part 2: {}", part_2(map.clone()));
+}