From 7fd957642236b5b64972b4e3f66fe48feecb735b Mon Sep 17 00:00:00 2001
From: Lizzy Hunt <lizzy.hunt@usu.edu>
Date: Fri, 1 Dec 2023 16:13:41 -0700
Subject: final test for the setup. aoc 2021 / 2

---
 aoc_2021/day-02/part_1.ts | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 aoc_2021/day-02/part_1.ts

(limited to 'aoc_2021/day-02/part_1.ts')

diff --git a/aoc_2021/day-02/part_1.ts b/aoc_2021/day-02/part_1.ts
new file mode 100644
index 0000000..ecd75aa
--- /dev/null
+++ b/aoc_2021/day-02/part_1.ts
@@ -0,0 +1,41 @@
+export const main = async (lines: string[]): Promise<number | string> => {
+  const { depth, horiz } = lines
+    .map((line) => line.split(" "))
+    .reduce(
+      (acc, [dir, delta]) => {
+        const d = Number(delta);
+        if (dir === "forward") {
+          acc.horiz += d;
+        }
+
+        if (dir === "up") {
+          acc.depth -= d;
+        }
+        if (dir === "down") {
+          acc.depth += d;
+        }
+        return acc;
+      },
+      { horiz: 0, depth: 0 },
+    );
+
+  return depth * horiz;
+};
+
+//
+
+const isrun = process.argv.length > 1 && process.argv[1] === import.meta.path;
+if (isrun) {
+  const file = Bun.file("./problem.txt");
+  const text = await file.text();
+  const lines = text.split("\n");
+
+  console.log("=== COMPUTATION ===\n");
+
+  const answer = await main(lines);
+
+  console.log("\n=== /COMPUTATION ===\n");
+
+  console.log("=== ANSWER TO P1 ===");
+  console.log(answer);
+}
-- 
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