comparing f40d5285f14dadd0f979c0ca56ecde71d9257541 and main on kot.pink/aoc

+1

.gitignore

···

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       1
        
       *.input

     

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       +
       .mypy_cache

+41

4.py

···

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       import sys

     

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       from typing import List, Optional, Tuple

     

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       removed_rolls = 0

     

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       file = '4.input' if len(sys.argv) <= 1 else sys.argv[1]

     

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       grid = list(map(list, map(str.strip, open(file).readlines())))

     

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       def check_occupied(y: int, x: int) -> Optional[Tuple[int, int]]:

     

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           try:

     

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               if x >= 0 and y >= 0 and grid[y][x] == "@":

     

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                   return (y, x)

     

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           except IndexError: pass

     

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           return None

     

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       +
       

     

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       def compute_adj(y: int, x: int) -> List[Optional[Tuple[int, int]]]:

     

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           return [

     

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               check_occupied(y-1, x-1), check_occupied(y-1, x), check_occupied(y-1, x+1),

     

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               check_occupied(y, x-1), check_occupied(y, x+1),

     

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               check_occupied(y+1, x-1), check_occupied(y+1, x), check_occupied(y+1, x+1)

     

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           ]

     

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       def search_removable() -> List[Tuple[int, int]]:

     

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           removable = []

     

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           for y in range(len(grid)):

     

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               for x in range(len(grid[y])):

     

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                   if grid[y][x] != "@": continue

     

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                   adj = compute_adj(y, x)

     

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                   if sum(map(bool, adj)) < 4:

     

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                       removable.append((y, x))

     

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           return removable

     

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       removable = search_removable()

     

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       print(f'p1: {len(removable)}')

     

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       while len(removable):

     

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           for (y, x) in removable:

     

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               grid[y][x] = "."

     

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           removed_rolls += len(removable)

     

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           removable = search_removable()

     

       40
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       print(f'p2: {removed_rolls}')

+10

4.test

···

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       ..@@.@@@@.

     

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       @@@.@.@.@@

     

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       @@@@@.@.@@

     

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       @.@@@@..@.

     

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       @@.@@@@.@@

     

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       .@@@@@@@.@

     

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       .@.@.@.@@@

     

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       @.@@@.@@@@

     

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       .@@@@@@@@.

     

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       @.@.@@@.@.

+44

5.py

···

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       import sys

     

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       import heapq

     

       3
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       from typing import List, Tuple, Optional

     

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       listed_in_range = 0

     

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       file = '5.input' if len(sys.argv) <= 1 else sys.argv[1]

     

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       ranges = []

     

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       numbers = None

     

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       for line in open(file).readlines():

     

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           line = line.strip()

     

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           if line == '':

     

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               numbers = []

     

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           elif numbers is not None:

     

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               numbers.append(int(line))

     

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           else:

     

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               heapq.heappush(ranges, tuple(map(int, line.split('-'))))

     

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       for num in numbers:

     

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           for start, end in ranges:

     

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               if start <= num and num <= end:

     

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                   listed_in_range += 1

     

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                   break

     

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       print(f'p1: {listed_in_range}')

     

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       dedup_ranges = []

     

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       last_start, last_end = None, None

     

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       while ranges:

     

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           start, end = heapq.heappop(ranges)

     

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           if last_start is None:

     

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               last_start, last_end = start, end

     

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           elif start <= last_end: # merge interval

     

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               # print("merge", last_start, last_end, "with", start, end)

     

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               last_start, last_end = last_start, max(last_end, end)

     

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           else: # commit interval

     

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               # print("commit", last_start, last_end)

     

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               dedup_ranges.append((last_start, last_end))

     

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               last_start, last_end = start, end

     

       40
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       dedup_ranges.append((last_start, last_end))

     

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       # print(dedup_ranges)

     

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       print(f'p2: {sum(end - start + 1 for start, end in dedup_ranges)}')

+11

5.test

+48

6.py

···

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       import sys

     

       2
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       from operator import mul, add

     

       3
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       from functools import reduce

     

       4
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       total_wordwise = 0

     

       6
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       total_digitwise = 0

     

       7
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       file = '6.input' if len(sys.argv) <= 1 else sys.argv[1]

     

       8
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       9
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       columns = []

     

       10
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       ops = []

     

       11
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       op_line = None

     

       12
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       13
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       for line in open(file).readlines():

     

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           line = line.strip('\n')

     

       15
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           for word in line.split(' '):

     

       16
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               if not word: continue

     

       17
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               if word in '+*':

     

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                   ops.append(word)

     

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                   op_line = line

     

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               else:

     

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                   columns.append(word)

     

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       for op_i, op in enumerate(ops):

     

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           column = [int(c) for i, c in enumerate(columns) if i % len(ops) == op_i]

     

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           if op == '+':

     

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               total_wordwise += sum(column)

     

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           elif op == '*':

     

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               total_wordwise += reduce(mul, column, 1)

     

       29
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       30
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       print(f'p1: {total_wordwise}')

     

       31
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       lines = []

     

       33
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       op_pos = [i for i, ch in enumerate(op_line) if ch in '+*']

     

       34
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       for line in open(file).readlines():

     

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           if line.strip() == op_line.strip(): break

     

       36
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           words = [line[i:j][:-1] for i, j in zip([0] + op_pos[1:], op_pos[1:] + [None])]

     

       37
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           lines.append(words)

     

       38
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       +
       

     

       39
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       +
       for op_i, op in enumerate(ops):

     

       40
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       +
           cols = [line[i] for i in range(len(lines[0])) if i % len(ops) == op_i for line in lines]

     

       41
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       +
           digits = [col[i] for i in range(len(cols[0])) for col in cols]

     

       42
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       +
           numbers = [int(''.join(digits[i:i+len(cols)])) for i in range(0, len(digits), len(cols))]

     

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       +
           if op == '+':

     

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               total_digitwise += sum(numbers)

     

       45
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       +
           elif op == '*':

     

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               total_digitwise += reduce(mul, numbers, 1)

     

       47
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       +
       

     

       48
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       print(f'p2: {total_digitwise}')

+4

6.test

···

       1
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       123 328  51 64 

     

       2
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        45 64  387 23 

     

       3
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         6 98  215 314

     

       4
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       +
       *   +   *   +

Compare changes