fix scaffolding, start d3

solutions/01.ts

@@ -1,12 +1,13 @@
 import { solvables } from "../main.ts";
 
-import type { Solvable } from "../solvable.ts";
+import { Day } from "../day.ts";
 import { readInput } from "../utils.ts";
 
-class DayOne implements Solvable {
+class DayImpl implements Day {
+    day = 1
     input = readInput('01')
 
-    public part1(): DayOne {
+    public part1(): Day {
         const vals: [string, number][] = this.input
             .split("\n")
             .map(line => [line[0], Number.parseInt(line.slice(1))]);
@@ -27,7 +28,7 @@ class DayOne implements Solvable {
         return this
     }
 
-    public part2(): DayOne {
+    public part2(): Day {
         const vals: [string, number][] = this.input
             .split("\n")
             .map(line => [line[0], Number.parseInt(line.slice(1))]);
@@ -56,4 +57,4 @@ class DayOne implements Solvable {
     }
 }
 
-solvables.push(new DayOne())
+solvables.push(new DayImpl())

solutions/02.ts

@@ -1,6 +1,6 @@
 import { solvables } from "../main.ts";
 
-import type { Solvable } from "../solvable.ts";
+import type { Day } from "../day.ts";
 import { readInput } from "../utils.ts";
 
 const checkWindow = (input: number): boolean => {
@@ -16,10 +16,11 @@ const checkWindow = (input: number): boolean => {
     return left === right;
 }
 
-class DayTwo implements Solvable {
+class DayImpl implements Day {
+    day = 2
     input = readInput('02')
 
-    public part1(): DayTwo {
+    public part1(): Day {
         const vals: [number, number][] = this.input
             .split(",")
             .map(range => range.trim().split("-")
@@ -31,7 +32,6 @@ class DayTwo implements Solvable {
             for (let i = start; i <= end; i++) {
                 if (String(i).length % 2 === 1) continue
                 if (checkWindow(i)) {
-                    console.log(i)
                     invalid.push(i);
                 }
             }
@@ -42,9 +42,9 @@ class DayTwo implements Solvable {
         return this
     }
 
-    public part2(): DayTwo {
+    public part2(): Day {
         return this
     }
 }
 
-solvables.push(new DayTwo())
+solvables.push(new DayImpl())

solutions/03.ts

@@ -0,0 +1,29 @@
+import { solvables } from "../main.ts";
+
+import type { Day } from "../day.ts";
+import { readInput } from "../utils.ts";
+
+class DayImpl implements Day {
+    day = 3
+    input = readInput('03')
+
+    public part1(): Day {
+        const vals: string[] = this.input
+            .split("\n")
+
+        const result = vals.map(battery => {
+            const sorted = battery.split("").sort()
+            return Number.parseInt(sorted[0]) + Number.parseInt(sorted[1])
+        }).reduce((a, b) => a + b, 0)
+
+        console.log(result)
+
+        return this
+    }
+
+    public part2(): Day {
+        return this
+    }
+}
+
+solvables.push(new DayImpl())