52 lines
1.4 KiB
Nim
52 lines
1.4 KiB
Nim
import std/[strscans, strformat, strutils]
|
|
|
|
type
|
|
Reveal = tuple[red: int, green: int, blue: int]
|
|
Game = object
|
|
number: int
|
|
reveals: seq[Reveal]
|
|
|
|
var games: seq[Game]
|
|
|
|
for line in readFile("input_02.txt").splitLines:
|
|
if line.strip.len == 0:
|
|
continue
|
|
|
|
var gameNum: int
|
|
var gamespec = line.strip.split(":", 1)
|
|
if not scanf(gamespec[0], "Game $i", gameNum):
|
|
echo "invalid line. Game number prefix mising."
|
|
|
|
var game = Game(number: gameNum)
|
|
|
|
for revealspec in gamespec[1].split(";"):
|
|
var reveal: Reveal
|
|
for dice in revealspec.strip.split(","):
|
|
var spec = dice.strip.split(" ", 1)
|
|
case spec[1].strip:
|
|
of "red":
|
|
reveal.red = parseInt(spec[0])
|
|
of "green":
|
|
reveal.green = parseInt(spec[0])
|
|
of "blue":
|
|
reveal.blue = parseInt(spec[0])
|
|
game.reveals.add(reveal)
|
|
|
|
games.add(game)
|
|
|
|
var max_dice = (red: 12, green: 13, blue: 14)
|
|
var result = 0
|
|
|
|
for game in games:
|
|
var possible = true
|
|
for reveal in game.reveals:
|
|
if reveal.red > max_dice.red or reveal.green > max_dice.green or reveal.blue > max_dice.blue:
|
|
possible = false
|
|
echo &"Game {game.number} NOT possible"
|
|
break
|
|
|
|
if possible:
|
|
result += game.number
|
|
|
|
echo &"Result: {result}"
|