diff options
Diffstat (limited to 'day11')
| -rw-r--r-- | day11/day11.py | 116 | ||||
| -rw-r--r-- | day11/input | 99 |
2 files changed, 215 insertions, 0 deletions
diff --git a/day11/day11.py b/day11/day11.py new file mode 100644 index 0000000..6c3b711 --- /dev/null +++ b/day11/day11.py @@ -0,0 +1,116 @@ +"""Day 11.""" +with open("input") as f: + CHART = tuple(tuple(x) for x in f.read().rstrip().split("\n")) + +EMPTY = 'L' +OCCUPIED = '#' +FLOOR = '.' + +MIN = 0 +MAX = len(CHART[0]) - 1 + +def clamp(num, minimium, maximium): + """Clamp a number in between a range.""" + if num <= minimium: + return minimium + if num >= maximium: + return maximium + return num + + +def get_neighbours(x, y): + """Get neighbour cords for a point.""" + pairs = set() + for i in range(x - 1, x + 2): + for j in range(y - 1, y + 2): + pairs.add( + ( + clamp(i, MIN, MAX), + clamp(j, MIN, MAX) + ) + ) + # Remove self + pairs.remove((x, y)) + return pairs + + +def get_seat(x, y, chart): + """so we can call x, then y.""" + return CHART[y][x] + + +def iterate_over_chart(chart, p=False): + new_map = [] + for y, row in enumerate(chart): + new_map.append([]) + for x, col in enumerate(row): + seat = chart[y][x] + neighbours = [chart[pair[1]][pair[0]] for pair in get_neighbours(x, y)] + occupied_sum = sum(1 if x == OCCUPIED else 0 for x in neighbours) + if seat == EMPTY and not any(x == OCCUPIED for x in neighbours): + new_map[y].append(OCCUPIED) + continue + elif seat == OCCUPIED and occupied_sum >= 4: + new_map[y].append(EMPTY) + continue + else: + new_map[y].append(seat) + if p: + print(y, x, seat) + print([(pair[1], pair[0]) for pair in get_neighbours(x, y)]) + print(neighbours) + print(occupied_sum) + print() + return new_map + +def print_chart(chart): + for y in chart: + line = "" + for x in y: + line += x + print(line) + + +def are_equal(chart1, chart2): + for idx, _ in enumerate(chart1): + if chart1[idx] != chart2[idx]: + return False + return True + +def count_occupied(chart): + count = 0 + for row in chart: + for x in row: + if x == OCCUPIED: + count += 1 + return count + + + + +initial = CHART +count = 0 +while True: + new_chart = iterate_over_chart(initial) + if are_equal(new_chart, initial): + print(count_occupied(new_chart)) + print("done") + break + else: + # print_chart(new_chart) + print(count) + count += 1 + initial = new_chart + + +# while True: +# print_chart(CHART) +# print() +new_chart = iterate_over_chart(CHART) +print(are_equal(initial, new_chart)) +# print() + +# # new_chart = print_iterate_over_chart(new_chart) +# new_chart = iterate_over_chart(new_chart) +# print_chart(new_chart) +# print() diff --git a/day11/input b/day11/input new file mode 100644 index 0000000..1ff3056 --- /dev/null +++ b/day11/input @@ -0,0 +1,99 @@ +LLLLLL.LLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLL +LLLLLL.LLLLLLLLLLLL.LLLLLLL.LLLLL.LLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LL +LLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLL.L.LLLLLL.LL.LLLLLL 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