diff options
Diffstat (limited to '2024/08')
| -rw-r--r-- | 2024/08/.gitignore | 1 | ||||
| -rw-r--r-- | 2024/08/Makefile | 1 | ||||
| -rw-r--r-- | 2024/08/input | 50 | ||||
| -rw-r--r-- | 2024/08/puzzles.py | 40 |
4 files changed, 92 insertions, 0 deletions
diff --git a/2024/08/.gitignore b/2024/08/.gitignore new file mode 100644 index 0000000..8931d44 --- /dev/null +++ b/2024/08/.gitignore @@ -0,0 +1 @@ +puzzle-[12].py
\ No newline at end of file diff --git a/2024/08/Makefile b/2024/08/Makefile new file mode 100644 index 0000000..6e58a9d --- /dev/null +++ b/2024/08/Makefile @@ -0,0 +1 @@ +include ../../Makefiles/py.mk
\ No newline at end of file diff --git a/2024/08/input b/2024/08/input new file mode 100644 index 0000000..3b9068b --- /dev/null +++ b/2024/08/input @@ -0,0 +1,50 @@ +..................................3.........H..... +..............F............................CK..... +..................F...e...m..........C.Ki......... +......1..................m........................ +.........F.1...................................... +.......1.....W...........3..Z............i........ +...........W...m....1............................. +......W...........m..............N..C............. +E............2................Z.K.......p......... +.....Y.........4....i.........N................... +..............W.Y....................3..9....i.... +.................................h........9....... +.........................................Z.......H +2...............................3.......H9........ +..2..........4T................................... +...2..............Y...4........Z.................. +.........E.........................N...5.......... +.......................................e.......... +..............................C................... +..E..................P.....................p.H.... +......4............................IN......h.p.... +..........................T....M.........K..p..... +..........................G....................... +.................................................. +...................................M.............. +.5.............G..............M................... +.............Y..........................M......... +.................E8...0.........................h. +.............................P............g....... +......5........................................... +.............n.................................c.. +...............................g....f.......c..... +.y..............8...t....T........................ +..7..F.............T........R..........f........u. +.kz.......7..R.................................... +.........8..................U.........P........... +......U.............wG....v.....P.............c... +...0.....R..........g............................. +.....7.....8.........g.............f.............. +....z...........G................7................ +........5........6.v.....U..f.......u........e.... +.........V....v........6......t................... +......6..0..y.....R........V...........r.......... +...........v.......we..U.............c..r......... +................................r.......Iu........ +k............y6..........t.................r...I.. +........k............t...........w................ +.............z....n.................I............. +..0.................n............................. +...............n..........V...........y........u..
\ No newline at end of file diff --git a/2024/08/puzzles.py b/2024/08/puzzles.py new file mode 100644 index 0000000..87c4c46 --- /dev/null +++ b/2024/08/puzzles.py @@ -0,0 +1,40 @@ +#!/usr/bin/python3 + +import collections +import itertools + + +type Antennas = defaultdict[str, list[complex]] + + +def main() -> None: + with open("input", "r") as f: + data = [x.rstrip() for x in f.readlines()] + w, h = len(data[0]), len(data) + + antennas: Antennas = collections.defaultdict(list) + antinodes: set[complex] = set() + + for y, row in enumerate(data): + for x, ch in enumerate(row): + if ch != '.': + antennas[ch].append(complex(x, y)) + + for coords in antennas.values(): + for a, b in itertools.combinations(coords, 2): + v⃗ = a - b + u⃗ = b - a + # START PART 1 + antinodes.add(a + u⃗*2) + antinodes.add(b + v⃗*2) + # END PART 1 START PART 2 + for i in range(1, max(w, h)): + antinodes.add(a + u⃗*i) + antinodes.add(b + v⃗*i) + # END PART 2 + + print(sum(0 <= x.real < w and 0 <= x.imag < h for x in antinodes)) + + +if __name__ == "__main__": + main()
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