23 lines
591 B
JavaScript
23 lines
591 B
JavaScript
|
const fs = require('fs');
|
||
|
|
|
||
|
|
const data = fs.readFileSync('input.txt', 'utf-8');
|
||
|
|
const lines = data.split('\n');
|
||
|
|
|
||
|
|
console.log()
|
||
|
|
const width = lines[0].length
|
||
|
|
// lets do it recursively why not
|
||
|
|
function trees(x, y, slopex, slopey) {
|
||
|
|
// escape case : bottom row
|
||
|
|
if (y >= lines.length - 1) {
|
||
|
|
return lines[y][x % width]=="#"
|
||
|
|
}
|
||
|
|
// haha javascript bool to int type casting go brrr
|
||
|
|
return (lines[y][x % width]=="#") + trees(x+slopex, y+slopey, slopex, slopey)
|
||
|
|
}
|
||
|
|
|
||
|
|
// got lucky with this star lol
|
||
|
|
console.log(trees(0,0,1,1)
|
||
|
|
*trees(0,0,3,1)
|
||
|
|
*trees(0,0,5,1)
|
||
|
|
*trees(0,0,7,1)
|
||
|
|
*trees(0,0,1,2))
|