Day AAA
HeNine
12 months ago
parent
ea5dacf69c
commit
838f8c9654
@ -0,0 +1,10 @@
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467..114..
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...*......
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..35..633.
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......#...
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...$.*....
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@ -0,0 +1,140 @@
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...733.......289..262.....520..................161.462..........450.........................183.............................................
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.....................244....6.....................................789......................687..............................................
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@ -0,0 +1,36 @@
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import re
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def do_task(lines):
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lines = (
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["." * (len(lines[0]) + 2)]
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+ ["." + line.strip() + "." for line in lines]
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+ ["." * (len(lines[0]) + 2)]
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)
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symbol_sum = 0
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for y in range(1, len(lines) - 1):
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for m in re.finditer(r"\d+", lines[y]):
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if re.search(
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r"[^.0-9]",
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lines[y - 1][m.start() - 1 : m.end() + 1]
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+ lines[y][m.start() - 1] + lines[y][m.end()]
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+ lines[y + 1][m.start() - 1 : m.end() + 1],
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):
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symbol_sum += int(m[0])
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return symbol_sum
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with open("day03/data/input100.txt") as infile:
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lines = infile.readlines()
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result = do_task(lines)
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print(result)
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print(result == 4361)
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with open("day03/data/input101.txt") as infile:
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lines = infile.readlines()
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result = do_task(lines)
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print(result)
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print(result == 525181)
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@ -0,0 +1,48 @@
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def do_task(lines):
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lines = (
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["." * (len(lines[0]) + 2)]
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+ ["." + line.strip() + "." for line in lines]
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+ ["." * (len(lines[0]) + 2)]
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)
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gears = dict()
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for y in range(1, len(lines) - 1):
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n = 0
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ni = []
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for x, c in enumerate(lines[y]):
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if c in "0123456789":
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n = n * 10 + int(c)
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ni.append(x)
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elif n != 0:
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for i in range(min(ni) - 1, max(ni) + 2):
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if lines[y-1][i] == "*":
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if (i, y-1) not in gears:
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gears[(i, y-1)] = []
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gears[(i, y-1)].append(n)
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if lines[y][i] == "*":
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if (i, y) not in gears:
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gears[(i, y)] = []
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gears[(i, y)].append(n)
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if lines[y+1][i] == "*":
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if (i, y+1) not in gears:
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gears[(i, y+1)] = []
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gears[(i, y+1)].append(n)
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n = 0
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ni = []
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return sum([ns[0] * ns[1] if len(ns) == 2 else 0 for ns in gears.values()])
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with open("day03/data/input100.txt") as infile:
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lines = infile.readlines()
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result = do_task(lines)
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print(result)
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print(result == 467835)
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with open("day03/data/input101.txt") as infile:
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lines = infile.readlines()
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result = do_task(lines)
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print(result)
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print(result == 84289137)
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