-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
4 changed files
with
211 additions
and
4 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| import { readFile } from "fs/promises"; | ||
| import { taskOne, taskTwo } from "./task"; | ||
|
|
||
| async function main() { | ||
| let lastArgument = process.argv.pop() as string; | ||
| let taskNumber = 1; | ||
| let isTest = false; | ||
|
|
||
| if (lastArgument === "test") { | ||
| isTest = true; | ||
| taskNumber = parseInt(process.argv.pop() as string); | ||
| } else { | ||
| taskNumber = parseInt(lastArgument) | ||
| } | ||
|
|
||
| const fileToLoad = isTest ? "test.in" : "solve.in"; | ||
| const fileContents = await readFile(fileToLoad, "utf-8") | ||
|
|
||
| const lines = fileContents.split("\n"); | ||
|
|
||
| if (taskNumber === 1) { | ||
| await taskOne(lines); | ||
| } | ||
| if (taskNumber === 2) { | ||
| await taskTwo(lines); | ||
| } | ||
| } | ||
|
|
||
| void main(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| export async function taskOne(input: string[]): Promise<void> { | ||
| let i = 0 | ||
| const grid: string[][] = [] | ||
| while (input[i] != '') { | ||
| grid.push(input[i].split('')) | ||
| i++ | ||
| } | ||
| i++ | ||
| let instructions = '' | ||
| while(i < input.length) { | ||
| instructions += input[i] | ||
| i++ | ||
| } | ||
| let pos = [-1,-1] | ||
| for (let y = 0; y < grid.length; y++) { | ||
| for (let x = 0; x < grid[y].length; x++) { | ||
| if (grid[y][x] == '@') pos = [y,x] | ||
| } | ||
| } | ||
|
|
||
| for (const i of instructions) { | ||
| let dir = [0,0] | ||
| if (i == '>') dir = [0,1] | ||
| if (i == '<') dir = [0,-1] | ||
| if (i == 'v') dir = [1,0] | ||
| if (i == '^') dir = [-1,0] | ||
|
|
||
| let c = [pos[0], pos[1]] | ||
| let foundFree = false | ||
| while(grid[c[0]][c[1]] != '#') { | ||
| if (grid[c[0]][c[1]] == '.') { | ||
| foundFree = true | ||
| break | ||
| } | ||
| c[0] += dir[0] | ||
| c[1] += dir[1] | ||
| } | ||
| if (!foundFree) continue | ||
|
|
||
|
|
||
| while(c[0] != pos[0] || c[1] != pos[1]) { | ||
| grid[c[0]][c[1]] = grid[c[0]-dir[0]][c[1]-dir[1]] | ||
| grid[c[0]-dir[0]][c[1]-dir[1]] = '.' | ||
| c[0] -= dir[0] | ||
| c[1] -= dir[1] | ||
| } | ||
| pos[0] += dir[0] | ||
| pos[1] += dir[1] | ||
| } | ||
|
|
||
| let s = 0 | ||
| for (let y = 0; y < grid.length; y++) { | ||
| for (let x = 0; x < grid[y].length; x++) { | ||
| if (grid[y][x] == 'O') { | ||
| s += y*100+x | ||
| } | ||
| } | ||
| } | ||
| console.log(s) | ||
| } | ||
|
|
||
| export async function taskTwo(input: string[]): Promise<void> { | ||
| let i = 0 | ||
| let oggrid: string[][] = [] | ||
| while (input[i] != '') { | ||
| const row: string[] = [] | ||
| for (const c of input[i]) { | ||
| if (c == '#') { | ||
| row.push('#') | ||
| row.push('#') | ||
| } else | ||
| if (c == '.') { | ||
| row.push('.') | ||
| row.push('.') | ||
| } else | ||
| if (c == '@') { | ||
| row.push('@') | ||
| row.push('.') | ||
| } else | ||
| if (c == 'O') { | ||
| row.push('[') | ||
| row.push(']') | ||
| } | ||
| } | ||
| oggrid.push(row) | ||
| i++ | ||
| } | ||
| i++ | ||
| let instructions = '' | ||
| while(i < input.length) { | ||
| instructions += input[i] | ||
| i++ | ||
| } | ||
| let pos = [-1,-1] | ||
| for (let y = 0; y < oggrid.length; y++) { | ||
| for (let x = 0; x < oggrid[y].length; x++) { | ||
| if (oggrid[y][x] == '@') pos = [y,x] | ||
| } | ||
| } | ||
|
|
||
| for (const i of instructions) { | ||
| const grid = JSON.parse(JSON.stringify(oggrid)) as string[][] | ||
| let dir = [0,0] | ||
| if (i == '>') dir = [0,1] | ||
| if (i == '<') dir = [0,-1] | ||
| if (i == 'v') dir = [1,0] | ||
| if (i == '^') dir = [-1,0] | ||
|
|
||
| let c = [pos[0], pos[1]] | ||
| let foundEmpty = false | ||
| while(grid[c[0]][c[1]] != '#') { | ||
| if (grid[c[0]][c[1]] == '.') { | ||
| foundEmpty = true | ||
| break | ||
| } | ||
|
|
||
| c[0] += dir[0] | ||
| c[1] += dir[1] | ||
| } | ||
|
|
||
| if (!foundEmpty) continue | ||
|
|
||
| if (dir[0] == 0) { | ||
| while(c[0] != pos[0] || c[1] != pos[1]) { | ||
| grid[c[0]][c[1]] = grid[c[0]-dir[0]][c[1]-dir[1]] | ||
| grid[c[0]-dir[0]][c[1]-dir[1]] = '.' | ||
| c[0] -= dir[0] | ||
| c[1] -= dir[1] | ||
| } | ||
| } else { | ||
| if (!push(pos[1],pos[0],dir[1],dir[0])) continue | ||
| } | ||
|
|
||
| pos[0] += dir[0] | ||
| pos[1] += dir[1] | ||
| oggrid = grid | ||
|
|
||
| function push(x: number, y: number, dX: number, dY: number): boolean { | ||
| let orth = new ComplexNumber(1,0) | ||
| if (grid[y+dY][x+dX] == '#') return false | ||
| if (grid[y+dY][x+dX] == '.') { | ||
| grid[y+dY][x+dX] = grid[y][x] | ||
| grid[y][x] = '.' | ||
| return true | ||
| } | ||
| if (grid[y+dY][x+dX] == '[') { | ||
| if (!push(x+orth.rel+dX,y+orth.img+dY,dX,dY)) return false | ||
| if (!push(x+dX,y+dY,dX,dY)) return false | ||
| grid[y+dY][x+dX] = grid[y][x] | ||
| grid[y][x] = '.' | ||
| return true | ||
| } | ||
| if (grid[y+dY][x+dX] == ']') { | ||
| if (!push(x-orth.rel+dX,y-orth.img+dY,dX,dY)) return false | ||
| if (!push(x+dX,y+dY,dX,dY)) return false | ||
| grid[y+dY][x+dX] = grid[y][x] | ||
| grid[y][x] = '.' | ||
| return true | ||
| } | ||
|
|
||
|
|
||
| throw "how?" | ||
| } | ||
| } | ||
|
|
||
| let s = 0 | ||
| for (let y = 0; y < oggrid.length; y++) { | ||
| for (let x = 0; x < oggrid[y].length; x++) { | ||
| if (oggrid[y][x] == '[') { | ||
| s += y*100+x | ||
| } | ||
| } | ||
| } | ||
| console.log(s) | ||
|
|
||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters