diff --git a/day01/part1.js b/day01/part1.js index b8a9cce..899c97e 100644 --- a/day01/part1.js +++ b/day01/part1.js @@ -2,6 +2,6 @@ var moves = [[1, 0], [0, -1], [-1, 0], [0, 1]]; var coords = [0, 0]; var input = "R1, R1, R3, R1, R1, L2, R5, L2, R5, R1, R4, L2, R3, L3, R4, L5, R4, R4, R1, L5, L4, R5, R3, L1, R4, R3, L2, L1, R3, L4, R3, L2, R5, R190, R3, R5, L5, L1, R54, L3, L4, L1, R4, R1, R3, L1, L1, R2, L2, R2, R5, L3, R4, R76, L3, R4, R191, R5, R5, L5, L4, L5, L3, R1, R3, R2, L2, L2, L4, L5, L4, R5, R4, R4, R2, R3, R4, L3, L2, R5, R3, L2, L1, R2, L3, R2, L1, L1, R1, L3, R5, L5, L1, L2, R5, R3, L3, R3, R5, R2, R5, R5, L5, L5, R2, L3, L5, L2, L1, R2, R2, L2, R2, L3, L2, R3, L5, R4, L4, L5, R3, L4, R1, R3, R2, R4, L2, L3, R2, L5, R5, R4, L2, R4, L1, L3, L1, L3, R1, R2, R1, L5, R5, R3, L3, L3, L2, R4, R2, L5, L1, L1, L5, L4, L1, L1, R1"; var steps = input.replace(/L/g, "R0, R0, R").split(", ").map((a)=>parseInt(a.substr(1))); -var finalCoords = steps.map((a, i)=>[moves[i%4][0] * a, moves[i%4][1] * a]).reduce((a, b)=>[a[0] + b[0], a[1] + b[1]], [0, 0]); +var finalCoords = steps.map((a, i)=>moves[i%4].map((b)=>(b*a))).reduce((a, b)=>[a[0] + b[0], a[1] + b[1]], [0, 0]); var distance = finalCoords.map(Math.abs).reduce((a, b)=>(a + b)); console.log(distance);