comments and starting part 6, remove redundant trims

inputs/06.txt

@@ -0,0 +1,130 @@
+....................................#............##........#..#.#..#.........#.............#..............#.......................
+..................##.........#....................##.....#.......#.......................................#..........#.............
+.......#...........#.........................................................................................#.#.#................
+.#..........#...............................#....................................#...#.....#...#.#....................#....#......
+..........#..........................................#............#.........................#..#......#....#..#..........#........
+..........................................................................#..........................................#.........#..
+.....#....#...........................#......#..........#........................#..........#.............#...........#..........#
+................#.......................#...........#.............................#.....#..#..................................#...
+........................................................................#..#.......................................#..............
+........#......................#.....#.......#.............#....#.........#....#........................#.............#...........
+.............#....#.......#........#..#.......##................#.......................................#.........................
+......#..............#.#...#...............#.........................#.....#............#..#.........#...............#............
+..................#...#..............................................#................#.......#................#..................
+....#...#.............#........................#....................................#......#................#......#..............
+..........................................................................................#...#.........##........................
+.............#.#...............#.....#.#......#.............................#.......................................#.....#.......
+.................................................#................................................................#...............
+........#.#......................#......#........#.......................................................#........................
+....#........#......#..................................................................................#............#.............
+...........#.........#.......#...............#........................#........................................................#.#
+........................##..................#........................#..........................................#.............#...
+..........#........#........#.........#..................#.....#..............................#..#..............#.................
+#..............................................................#..#............................#..........#.......................
+.................................................................#...............#...#.#.........#.#.................#...........#
+.....................................#.....................#.....................#........#....#....#.............................
+#..#................#.....#....................................##............#...............#...#..........#.....................
+.................#.....#.....................#................#...........#...................................................#...
+..................................#........#.................#....#..................#.......................................#....
+..#....#............................#................................................##.........................................#.
+...............#......................................................#......##...................................................
+.........................#..................................#................##.#..#.#.................#.......#..................
+.................#......................................#...#.....................................................................
+.........#..........................................................................................#.......#.....................
+....##..#.........#..............#..#............#............#...................................#...............................
+......#.......................................#................................................................#..................
+....#..................#............................#................................................................#............
+...............................##.#..............#....#............#.........................................#.....#..............
+........#........#....#.................................................................#.....#...................#...............
+#...........#..#.........................................#..................................................#..##.......#.....#..#
+................#......#...........##..........................................................#....#.............................
+..........#..........#.............................................................#..............#.................#..........#..
+#.................#....................................................................................#..#..............#........
+.....#..............#.........................#.....#...........#......................#..........................................
+.....##.....................#...............................................................#.....................................
+...................#.................................................................................#.....................#..#...
+...............................................^......................#...........................#...............................
+.......#...............#.........#.........#......#.......................................................................#.......
+........#.........#..#..##.................................#.....#..............#...........#..#........#.........................
+..............................................................................#......#.#...............#..#..#.....#....#.........
+............#...#.......##............#....#...........................................................................#..........
+..................................##........#.....##.......#......................................................................
+.......................#...........................................#..................................#...#.........#.............
+............#......................................................#....#..........#...................#........................#.
+....................................................#......................#..........................#....#......................
+..................#.##....................................#..................................#.................#....#...#.........
+........#.....................................................................................#...#...............................
+....................................................#..........................................#........#..#.#.................#..
+....#...........#..#......#.........................#.....................#............................#.....#.#..............#...
+.............................#.......#..........#..................................................................#....#.....#...
+.....#.#................#...................#...............................................#.....................................
+....#........................................#......#.............................#...............................................
+.......#..........#........................#.....................................#..............#......#...##.....................
+.....#..#.............................##........................................................#.....#..............#.#..........
+...........................................#......#......................................#..............#.........................
+...................#.........#....#................#.....#.........#....................#............#..#........#...............#
+.....#.....................#......................................................................#...............................
+...............#.......................................#...#.................#..............#.....................................
+.........................#........................................................#...............................................
+..................................#..........................................#...........#.....................#..................
+.......................#.#............#.........................................#.................................................
+..........................#...................#......................#......................................#.....................
+.........#.........................#..............................................................#...............................
+..#..............................#...............#..................................###..........................................#
+.............................................#...............#.....#........................................................#..#..
+................#..........................#.......................................#........................................##.#..
+......##........#.....................................#............#..................#...............................#...........
+..#..................#......................................#....#.......................#................................#.......
+........................#...............#....#...#..........................................................................#.....
+.............#.#..........#...#....#.................##...........................................................................
+......#....#.......................................................................#.....................................#..#.....
+.............#.......#............#...#..........#...............#..................................................#..........#..
+..........................#...........................................................#.............#.............................
+#......................................#........#......#..........................................................................
+................#..........................................................#......................................................
+..................#................................................................#..........................#..........#.......#
+.......#.....#............##..............................................................#....................#.....#......#.....
+...........................................#..........#.#............................................#............................
+.......#.......................#..........................................................#.......................................
+.................#........................#.........#...#............................................................#............
+................................................#...................#.........#...........#...........................#...........
+..#..............#......#..............................##............#..................#.......#.................................
+.#.#.........................................#......##.....##........#.............#..#..................##....#.#...#............
+..#.....................#.......#....#...............#...............#...................................................#........
+.#...#...............#..................................................................#..........#....#.................#.#.....
+.#...................#...................................................................#.............#.......................#..
+.....................................#.....#..#...........#...........#..........#....................................#...........
+.................................................................................#..#.............##....#...#............#........
+......................#....#........#......#...................#.............................................#....................
+.......................................#..........................#............................#.#..........................#.....
+.#........................##....................................#.......#...........................#..#.......................#..
+.........#.........#................................................................#.................#........#..................
+..............#.......#.....#....................#........##.............#....#...............#.............#...........#...#.....
+.................................................................#..#........#...#...#.........#..................................
+................#......##..........#..........#.........#....#............................................#.#.............#.......
+...#...................................................................#.......................................#..................
+.......#..................#............#.....#................#..#....##.......#...............#..................................
+............#............##....#...................#..........................#......................................#...#...#....
+......#.....#..........##...............#......#...............................#......#...........................................
+.................#.......#.......................................................#............#........#...#.......#...........#..
+......................##........#...................#.....#....................#...#....#........................#................
+.................#.....#.......#...........#.......#....................##....................................................#.#.
+......#....................................#.........................#..................................#................#.#..#...
+..............#...........................................................................................................#.......
+#.#......#.................................................................................#...........#...#......................
+...........................................#.#........#....#............#.....................#...................................
+...#.............#.....................................................................................................#..........
+..............#..........#............#...#..............#........................................##........#.....#.......#.......
+..................##........#.............................................#.........................................###...........
+..........#......................#............................................................................#....#..............
+.............#........#.............#.#...............#.....#..........#.....#....#...#...........#....#..........................
+........#...#.......#........................#.............#..........#........#.......................#..........................
+..................................................................#...............#......#...#.......#............................
+.............#..........#...................##.............#.........#..................#.........................................
+.#.....#..#...#...............#.#.............#...........#.......................................................................
+..............#..#.........................#..............#..#..............#.......................#.#...........................
+............#.......................#....#................#..........#.......................#.....................#..............
+#.................#............................#...##....#.....#.....................................................#............
+.............................#........................#..................................................#....#...................
+.##...........................................#.....#....#....#.......................#...#.....#...#............#................
+........#.............#.........#..............#........................#.....................#...#...............................

solutions/01.ts

@@ -8,10 +8,9 @@ class DayOne implements Solvable {
 
     public part1(): DayOne {
         const vals = this.input
-            .trim()
             .split("\n")
             .map(line => line.split('   ').map(col => Number.parseInt(col)))
-        const left  = vals.map(line => line[0]).sort()
+        const left = vals.map(line => line[0]).sort()
         const right = vals.map(line => line[1]).sort()
 
         const diff: number[] = []
@@ -25,17 +24,17 @@ class DayOne implements Solvable {
     }
 
     public part2(): DayOne {
-            const vals = this.input.trim().split("\n").map(line => line.split('   '))
+        const vals = this.input.trim().split("\n").map(line => line.split('   '))
-            const left  = vals.map(line => Number.parseInt(line[0])).sort()
+        const left = vals.map(line => Number.parseInt(line[0])).sort()
-            const right = vals.map(line => Number.parseInt(line[1])).sort()
+        const right = vals.map(line => Number.parseInt(line[1])).sort()
 
-            const countedOccurences: Map<number, number> = new Map()
+        const countedOccurences: Map<number, number> = new Map()
-            left.forEach(left_val => countedOccurences.set(left_val, right.filter(right_val => left_val === right_val).length))
+        left.forEach(left_val => countedOccurences.set(left_val, right.filter(right_val => left_val === right_val).length))
-            const result = countedOccurences
+        const result = countedOccurences
-                .entries()
+            .entries()
-                .map(([left_val, occurences]) => left_val * occurences)
+            .map(([left_val, occurences]) => left_val * occurences)
-                .reduce((prev, curr) => prev + curr)
+            .reduce((prev, curr) => prev + curr)
-            console.log(result)
+        console.log(result)
         return this
     }
 }

solutions/04-a.ts

@@ -8,15 +8,15 @@ class DayFour implements Solvable {
 
     public part1(): Solvable {
 
-        const transpose = (m: string[][]) => m[0].map((_,i) => m.map(x => x[i]))
+        const transpose = (m: string[][]) => m[0].map((_, i) => m.map(x => x[i]))
 
-        const matrix = this.input.trim().split('\n').map(line => line.split(''))
+        const matrix = this.input.split('\n').map(line => line.split(''))
 
         const countOccHorizontal = (mat: string[][]) => mat
             .map(line => line.join('')
-            .matchAll(/(XMAS|SAMX)/g)
+                .matchAll(/(XMAS|SAMX)/g)
-            .map(match => match[0])
+                .map(match => match[0])
-            .toArray().length)
+                .toArray().length)
             .reduce((prev, curr) => prev + curr)
 
         // b/y = height
@@ -24,11 +24,11 @@ class DayFour implements Solvable {
         // start top right
 
         const getDiagonals = (mat: string[][]) => {
-            let [b,a] = [0, 140 - 1]
+            let [b, a] = [0, 140 - 1]
             const lines = []
             while (b < mat.length) {
                 let line = ''
-                for (let [y,x] = [b,a]; x < 140 && y < 140; y++,x++)
+                for (let [y, x] = [b, a]; x < 140 && y < 140; y++, x++)
                     line += mat[y][x]
 
                 lines.push(line.split(''))
@@ -44,7 +44,7 @@ class DayFour implements Solvable {
 
         // console.log(getDiagonals(matrix.reverse()))
 
-        console.log(transpose(matrix).map(line=> line.join('')))
+        console.log(transpose(matrix).map(line => line.join('')))
 
         const downRight = countOccHorizontal(getDiagonals(matrix))
         const downLeft = countOccHorizontal(getDiagonals(matrix.reverse()))

solutions/05.ts

@@ -5,10 +5,11 @@ import type { Solvable } from "../solvable.ts";
 import { readInput } from "../utils.ts";
 
 class DayFive implements Solvable {
-    input: string[] = readInput('05').trim().split('\n\n')
+    input: string[] = readInput('05').split('\n\n')
     rules: number[][] = this.input[0].split('\n').map((input: string) => input.split('|').map(rule => Number.parseInt(rule)))
     updates: number[][] = this.input[1].split('\n').map(line => line.split(',').map(update => Number.parseInt(update)))
 
+    // generated in part 1 for part 2
     invalidUpdates: number[][] = []
 
     followsRules = (update: number[]): [boolean, number, number] => {
@@ -32,6 +33,7 @@ class DayFive implements Solvable {
             if (this.followsRules(update)[0]) {
                 validUpdates.push(update)
             } else {
+                // store these for part 2
                 this.invalidUpdates.push(update)
             }
         })

solutions/06.ts

@@ -0,0 +1,71 @@
+
+import { solvables } from "../main.ts";
+
+import type { Solvable } from "../solvable.ts";
+import { readInput } from "../utils.ts";
+
+type Direction = "up" | "down" | "left" | "right"
+
+class DaySix implements Solvable {
+    input: string[][] = readInput('06').split('\n').map(col => col.split(''))
+    map = this.input
+    visitedLoc = new Map()
+
+    // assigned in part1
+    startingPosition: [number, number] = [0, 0]
+
+    takeStep = (x: number, y: number, direction: Direction): [number, number] => {
+        switch (direction) {
+            case 'up':
+                return [x, y + 1]
+            case 'down':
+                return [x, y - 1]
+            case 'right':
+                return [x + 1, y]
+            case 'left':
+                return [x + 1, y]
+        }
+    }
+
+    walk = (x: number, y: number, direction: Direction): [boolean, number, number, Direction] => {
+        const nextStepInBounds = {
+            up: y > 1,
+            down: y < this.map.length,
+            left: x > 1,
+            right: x < this.map.length,
+        }
+
+        if (!nextStepInBounds[direction]) {
+            return [true, x, y, direction]
+        } else {
+            // TODO check for obstacles
+            const [newX, newY] = this.takeStep(x, y, direction)
+            return [false, newX, newY, direction]
+        }
+    }
+
+    public part1(): Solvable {
+        // find starting position
+        this.input.forEach((line, y) => line.forEach((col, x) => { if (col === '^') this.startingPosition = [y, x] }))
+        let [x, y] = [this.startingPosition[0], this.startingPosition[1]]
+        let direction: Direction = 'up'
+        let outOfBounds = false
+
+        while (!outOfBounds) {
+            [outOfBounds, x, y, direction] = this.walk(x, y, direction)
+        }
+
+
+
+        console.log()
+
+        return this
+    }
+
+    public part2(): Solvable {
+        console.log()
+        return this
+    }
+}
+
+solvables.push(new DaySix())

utils.ts

@@ -1,5 +1,5 @@
 function readInput(day: string): string {
-    return Deno.readTextFileSync('./inputs/' + day + '.txt')
+    return Deno.readTextFileSync('./inputs/' + day + '.txt').trim()
 }
 
 export { readInput };