60 lines
1.5 KiB
Python
60 lines
1.5 KiB
Python
from math import sqrt
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from tools.aoc import AOCDay
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from typing import Any
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def fire(velX: int, velY: int, minX: int, maxX: int, minY: int, maxY: int) -> (bool, int):
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highY, posX, posY = 0, velX, velY
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while not posX > maxX and not posY < minY:
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if velX > 0:
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velX -= 1
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elif posX < minX:
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break
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velY -= 1
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posX += velX
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posY += velY
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if posY > highY:
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highY = posY
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hit = minX <= posX - velX <= maxX and minY <= posY - velY <= maxY
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return hit, highY if hit else minY
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class Day(AOCDay):
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inputs = [
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[
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(45, "test_input17"),
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(5151, "input17")
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],
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[
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(112, "test_input17"),
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(968, "input17")
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]
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]
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def getBoundaries(self) -> (int, int, int, int):
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_, xRange, yRange = self.getInput().split("=")
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minX, maxX = map(int, xRange[:-3].split(".."))
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minY, maxY = map(int, yRange.split(".."))
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return minX, maxX, minY, maxY
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def part1(self) -> Any:
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minX, maxX, minY, maxY = self.getBoundaries()
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return max(fire(x, y, minX, maxX, minY, maxY)[1] for x in range(maxX) for y in range(abs(minY)))
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def part2(self) -> Any:
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minX, maxX, minY, maxY = self.getBoundaries()
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hitCounter = 0
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for x in range(int(sqrt(maxX)), maxX + 1):
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for y in range(minY, abs(minY)):
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hitCounter += fire(x, y, minX, maxX, minY, maxY)[0]
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return hitCounter
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if __name__ == '__main__':
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day = Day(17)
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day.run(verbose=True)
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