98 lines
2.1 KiB
Nim
98 lines
2.1 KiB
Nim
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import std/strutils
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const ROCK = 0
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const PAPE = 1
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const SCIS = 2
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const WIN = 2
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const LOS = 0
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const DRW = 1
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proc get_rps_winner(m1: int, m2: int): int =
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if m1 == ROCK and m2 == ROCK:
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return 0
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if m1 == ROCK and m2 == PAPE:
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return 2
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if m1 == ROCK and m2 == SCIS:
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return 1
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if m1 == PAPE and m2 == ROCK:
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return 1
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if m1 == PAPE and m2 == PAPE:
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return 0
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if m1 == PAPE and m2 == SCIS:
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return 2
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if m1 == SCIS and m2 == ROCK:
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return 2
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if m1 == SCIS and m2 == PAPE:
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return 1
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if m1 == SCIS and m2 == SCIS:
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return 0
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return -1
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proc get_move(m1: int, res: int): int =
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if m1 == ROCK and res == WIN:
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return PAPE
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if m1 == ROCK and res == LOS:
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return SCIS
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if m1 == ROCK and res == DRW:
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return ROCK
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if m1 == PAPE and res == WIN:
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return SCIS
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if m1 == PAPE and res == LOS:
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return ROCK
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if m1 == PAPE and res == DRW:
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return PAPE
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if m1 == SCIS and res == WIN:
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return ROCK
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if m1 == SCIS and res == LOS:
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return PAPE
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if m1 == SCIS and res == DRW:
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return SCIS
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return -1
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proc run02_2(): string =
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const input = staticRead"../input/day02.txt"
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var score = 0
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for line in splitLines(input):
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if line == "":
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continue
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let move_elve = int(line[0]) - int('A')
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let res_should = int(line[2]) - int('X')
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let move_me = get_move(move_elve, res_should)
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let delta1 = (move_me + 1)
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var delta2 = 0
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let winner = get_rps_winner(move_elve, move_me)
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if winner == 0:
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delta2 = 3 # draw
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elif winner == 1:
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delta2 = 0 # elve win
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elif winner == 2:
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delta2 = 6 # me win
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# echo line , " -> " , move_elve, "|", move_me, " -> ", winner, " || ", score, " + ", delta1, " + ", delta2
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score += delta1
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score += delta2
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return intToStr(score)
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when not defined(js):
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echo run02_2()
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else:
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proc js_run02_2(): cstring {.exportc.} =
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return cstring(run02_2())
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