33 lines
981 B
Nim
33 lines
981 B
Nim
|
import ./common, std/[sequtils, algorithm, sugar, sets, strformat, strutils, tables, options, json, hashes, random]
|
||
|
|
|
||
|
|
proc p1(input: Lines): uint64 =
|
||
|
|
const DIE_FACES = 100
|
||
|
|
const TARGET_SCORE = 1000
|
||
|
|
const BOARD_POSITIONS = 10
|
||
|
|
|
||
|
|
var scores = [0, 0]
|
||
|
|
var pos = [input[0].split(": ")[1].parseInt - 1, input[1].split(": ")[1].parseInt - 1]
|
||
|
|
var rollNum = 1
|
||
|
|
var turn = 0
|
||
|
|
while scores[0] < TARGET_SCORE and scores[1] < TARGET_SCORE:
|
||
|
|
var move = 0
|
||
|
|
for _ in 1..3:
|
||
|
|
move += rollNum mod DIE_FACES
|
||
|
|
inc rollNum
|
||
|
|
pos[turn] = (pos[turn] + move) mod BOARD_POSITIONS
|
||
|
|
scores[turn] += pos[turn] + 1
|
||
|
|
echo &"{move}, {pos[turn]}, {scores}"
|
||
|
|
turn = (turn + 1) mod 2
|
||
|
|
|
||
|
|
echo rollNum, scores
|
||
|
|
uint64(scores[turn mod 2] * (rollNum - 1))
|
||
|
|
|
||
|
|
proc p2(input: Lines): uint64 =
|
||
|
|
0
|
||
|
|
|
||
|
|
const input = """
|
||
|
|
Player 1 starting position: 4
|
||
|
|
Player 2 starting position: 8
|
||
|
|
""".strip().split('\n')
|
||
|
|
doDayX 21, (n: int) => n.loadInput, p1, p2, (input, 739785'u64, 444356092776315'u64)
|