3 files changed, 244 insertions, 0 deletions
diff --git a/day3/__init__.py b/day3/__init__.py
new file mode 100644
index 0000000..ebe243e
--- /dev/null
+++ b/day3/__init__.py
@@ -0,0 +1,94 @@
+# -*- coding: utf-8 -*-
+from abc import ABC
+from functools import reduce
+from typing import Optional, Iterator
+from aoc import BaseAssignment, I, T
+from aoc.datastructures import Coordinate
+class Assignment(BaseAssignment, ABC):
+    def symbol_overlap(self, number_coordinates: list[Coordinate], symbols: set[Coordinate]) -> set[Coordinate]:
+        neighbours = {
+            neighbour
+            for coordinate in number_coordinates
+            for neighbour in coordinate.neighbours()
+        }
+        return neighbours & symbols
+    def read_input(self, example=False) -> tuple[list[str], list[tuple[list[Coordinate], int]], set[Coordinate]]:
+        schematic = list(super().read_input(example))
+        numbers: list[tuple[list[Coordinate], int]] = list()
+        symbols: set[Coordinate] = set()
+        for y, row in enumerate(schematic):
+            number: Optional[list[list[Coordinate], str]] = None
+            for x, item in enumerate(row):
+                if item.isdigit():
+                    if number is None:
+                        number = [[], '']
+                    number[0].append(Coordinate(x, y))
+                    number[1] += item
+                    continue
+                if number is not None:
+                    numbers.append((number[0], int(number[1])))
+                    number = None
+                if item != '.':
+                    symbols.add(Coordinate(x, y))
+            if number is not None:
+                numbers.append((number[0], int(number[1])))
+        return schematic, numbers, symbols
+class AssignmentOne(Assignment):
+    example_result = 4361
+    def is_part_number(self, number_coordinates: list[Coordinate], symbols: set[Coordinate]) -> bool:
+        return len(self.symbol_overlap(number_coordinates, symbols)) > 0
+    def run(self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]) -> int:
+        _, numbers, symbols = input
+        part_numbers = []
+        for coordinates, number in numbers:
+            if self.is_part_number(coordinates, symbols):
+                part_numbers.append(number)
+        return sum(part_numbers)
+class AssignmentTwo(Assignment):
+    example_result = 467835
+    def run(self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]) -> int:
+        schematic, numbers, symbols = input
+        possible_gears = {}
+        for coordinates, number in numbers:
+            for symbol in self.symbol_overlap(coordinates, symbols):
+                if schematic[symbol.y][symbol.x] != '*':
+                    continue
+                if symbol not in possible_gears:
+                    possible_gears[symbol] = []
+                possible_gears[symbol].append(number)
+        return sum([
+            reduce(
+                lambda total, number: total * number,
+                numbers,
+                1
+            )
+            for symbol, numbers in possible_gears.items()
+            if len(numbers) > 1
+        ])
diff --git a/day3/example.txt b/day3/example.txt
new file mode 100644
index 0000000..b20187f
--- /dev/null
+++ b/day3/example.txt
@@ -0,0 +1,10 @@
+467..114..
+...*......
+..35..633.
+......#...
+617*......
+.....+.58.
+..592.....
+......755.
+...$.*....
+.664.598..
diff --git a/day3/input.txt b/day3/input.txt
new file mode 100644
index 0000000..c1073d9
--- /dev/null
+++ b/day3/input.txt
@@ -0,0 +1,140 @@
+.....613...................................439............498.........................438......617....343.............942...................
+.......*............790...........269..735..*........................../679..............*444.*.........*.......147...*.............441.....
+....539......422.......*......662*........*..691..........*124.15..675.................=.......404...872............237......930.....+......
+........334.............861.........%....479..........424.......+.@.......402.......314...905................833........*293................
+..........#.......................906.................*...............950.....................712...437.........*142.359........551.14......
+....509.....=...........890...................&........9................./..847.154..568............@...102................280...*..........
+.....*..950.67.............-......161.......530....=...................=............*...../..............@.......................426........
+614...............................*.............59.591.....259*.......342...427..........29../.........-....................946.............
+.......896........808..............6.............*.............35............./......538.....572....510...677*380...........=...............
+.......*.............*534..814................879...............................615/....*............................90.........580...413...
+.......810..........................................714.260..498..........386..........877......754........793...943.*............/.....*...
+.....................845..#..483........55...643.......*......&.....421..+.....+...527.....938............*.......*...993...............706.
+....339*..370..........-.540.@.....337..........*........39........*........404......&.......*...483...308.....567................../.......
+..........*......994..............*......855..356.768.....*.....114...@195..................976....-...............496.61...610...369.200...
+..........15........*...@890...447.........*.........*.303......................821..251*....................8........*....+................
+...962.............260...................@..716....893..............304............*.....537.........805.....#..........................388.
+............201*........................281.............471........*...../.....=....959...............%..238....180..641@...................
+....278.........132..........65...&.........*920.......*.......831..97..828.....533......#368............../.......*......66-...............
+.....*................*......*..627......343..........111.....*.....................................*.100$........693..........780..........
+...974........474..537.759.101.......366....................183...............461*178..850.......644.........57.............................
+..........67$.@.........................*...879..................54.100..355.................794.............=.....................826.530..
+494*549...............670...=194.....173............329=....*14....*........*....811*303....*....891..541........975........................
+........................*................403.............591................667............630....*.....$.667*....#...*......819.........19.
+572...@.......%.......271..........910.........578.551..........818.534...........................217.........809.....262.....+.............
+.....105.......748..............%........637...*...*........515....*...................119............*143..@.....258.......................
+.20........115........714....525...491....*..768...647.....*...................433..../............583.......404..#..............268........
+.......650..*.....%......%............*.311............275.283.306..=659.....................499........@................652.176............
+..100.....#.193.637..........828...806.............725*........*..............................@......418........370.......@........86&..977.
+......350................229..$.............................%...724.....#.981*582..$...............................*.38.....38.503......$...
+.......#..380...........*.............311........%..........968......647..........33..................634*13......72./...%...*..*...........
+............*.203*52.......+........./...........295.....................888..........277...938..662.........3.........619.320...766........
+....149...883..............817...........163............959..........8.....*.811%............*......&...354..+.....392......................
+....................727........789......*...............@...............739.........537....326.............*......*.......&925.........938..
+..383..505.166......-.........*.......565......491........136.....693..........870.%...........#...........654..&..313.................*....
+.........=..$..801....962.....787..........181......186.../..........*103........+............826....599.......289.....311.768..........986.
+.292.414..........*......*................*..................214.....................439.@130...........+...52........*.....*.....989*......
+.........221......149....405...@...........393..........714.....&.......652............*............607....*.........412....682.......982...
+.........*......................491.......................*..............-......906..909.......885.....%.747......19........................
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+....66......*....92..........367.......*....883.625.....479....852@.............277.635............860.......940..21....*....995.....&......
+.........206............595%...................*............./.......................*......691.......*..........*..........*...............
+.....766.............&................=...........*...649-.241...56..@724..713..836.863.......=....676...+..824.506......247..$132..........
+.....................278..........917..864.....219...............+............%.*......................973.........................744......
+.........912...............%......*................979....-953...................733.............&................................*.........
+.........@........$........995....905......552...................391.........40=.......388.......141...................731*640.....511......
+123..662...989.672............................*........611......+.....%910.............*....5......................584......................
+...*...*../...........................306.....289.*....*.............................673.....*........970..51....@....*...............#.....
+...916.23.......14..828........908.................181.227......26....190.....723..*.......877...513...@...*..977......319..867/...997..76..
+..........158........=............$..............................%............#...605....................264.......569.....................1
+.....453..*............................815.430*........946..840.........................456.........152................23...................
+216.....*.389...........930............*.......211.......-...*.....635..472*185.................................@444...*.....783...966......
+...*...72.................*..........527...+...............636.......*.............746....575.....5...276.821........568.+......*...-.......
+..765...........991........686..142*......588......@...........366....395.............*..*...............................983...266..........
+.................+..................383.............330..&......%...............337.853.337........927.@703.&513......................855...
+...652................=../..@.............431....48......512...............541....%.................+.............-...835/.......%......*...
+.....*..205.....510.92..901.778............*......./............588.........#..........@....................968.603........820...75....844..
+...560............/........................597...................&.......#............698..........427........*...../249....................
+..............817..........50..........208..................149..........169........................*......835..............522.............
+.....-......................*............*.....470......%..*.......151.................731.......395..979.........200.........#.......$.....
+..242.........698........763............531.....*....252...533.....*.........64.........*...233.........*............*262.............498...
+........994.....*...............620.639......575................934..606.99....*....770.72.#......@.............................-...........
+.......*.........658..355.........#...*............*...*597..............*...645......*........292........-..354...@.......409...515........
+........453..594.......#..............571..=552.193...8.............820...69.........877....%..........846.....*...525.446....*........*386.
+....&...........#..................................................*....-.................652.................500............361....290.....
+...833..................652.....410..924*72..........*.../104.....231.223....@...%....775................375................................
+.................470...........*..................663.......................179.10....&.........256..770*............243.........354........
+...*5.............*............962......-....................../.....529...................../.....*.........39.255./.......73......&.......
+...............253..766....$.............659........$497..241.656....&....630................262.212...154.......*............*.............
+...................*....755...................375...........*................@...........................*.....936...159.......786...981....
+...................78....................426.....*39....885..835....432..............439.................335............@...................
+.......*574.785............................................*................736......*.....860....395...........381...........@..114...825..
+....557........@.............187.....640......514.36*.....834.........630...@....*..194......#....-......*......*....164....440.%.....*.....
+...................744.908....*........*......*......185......................165........635..........464.354..104.................996......
+.........................*.805..604..375...326........................*.................../....970.....................*....................
+....751.....776.......661.......*.................777*........434..952.662....2......................$.923...........99.463.........&.514...
+....*........*.....55..........414..............................*..............$......&522........378............+............*....89..*....
+.331.......403..94..................547.551..............300...600........=......452.......976.+...............213.........815.757..........
+.....209-......*...760...............@...*.............................963........+..........*.906.......785...........................+....
+958...........319....@.....+.334..........640.................................798.........611......678.....*..630.......389............426..
+.........../............961..*..................608..472...........45...........*...................*....390.............*..................
+.....597..191......&861.......279.689.............=....*.972*..........560......900.............548..97.......240...51....2....411.......233
+......*.......379.................*......+...........770.....989...955...&.214#.........*588.......*.............%..$.......................
+....982.&.......................82....850...450......................*...............755.....799....539.....298.........993........788......
+.........901....382.......569...............&........428............281.....=599.........98.../....................789.@......956.=....450..
+.................*..497/..*...664....*...............%.........610................/944.....*....778......713*375.....*.................*....
+.......@......637........443.../...905............................*883.......389...........563......................388...$.....*559....386.
+........241.......*597.........................876..............$........731*.....192.483..............#958...%..*......828..100............
+...89&.........994.........*228...............#...........18...413..............1....*...........*..........157...453.......................
+..........573...........198............447........488.672../.#......&383.........%.....589........511..................46...................
+.....*449......$...228*................+.............*........662.........%.............*....321........34%....838&...*.....................
+..592.......659...............=...........................................188..248....836......*....................141..%......344.........
+............................564....481..............-..........................................861............%...........93.....$...$.936..
+..........618.287......490$.......-............*..304.........662.........@....196...@...72*.........918.339.999.-.................28.......
+.............*..............................556.......812.272.....235@.510...#.....51.......804...........#.......209......323=.............

diff --git a/day3/__init__.py b/day3/__init__.py new file mode 100644 index 0000000..ebe243e --- /dev/null +++ b/day3/__init__.py
@@ -0,0 +1,94 @@
	1	# -- coding: utf-8 --
	2	from abc import ABC
	3	from functools import reduce
	4	from typing import Optional, Iterator
	5
	6	from aoc import BaseAssignment, I, T
	7	from aoc.datastructures import Coordinate
	8
	9
	10	class Assignment(BaseAssignment, ABC):
	11	def symbol_overlap(self, number_coordinates: list[Coordinate], symbols: set[Coordinate]) -> set[Coordinate]:
	12	neighbours = {
	13	neighbour
	14	for coordinate in number_coordinates
	15	for neighbour in coordinate.neighbours()
	16	}
	17
	18	return neighbours & symbols
	19
	20	def read_input(self, example=False) -> tuple[list[str], list[tuple[list[Coordinate], int]], set[Coordinate]]:
	21	schematic = list(super().read_input(example))
	22	numbers: list[tuple[list[Coordinate], int]] = list()
	23	symbols: set[Coordinate] = set()
	24
	25	for y, row in enumerate(schematic):
	26	number: Optional[list[list[Coordinate], str]] = None
	27
	28	for x, item in enumerate(row):
	29	if item.isdigit():
	30	if number is None:
	31	number = [[], '']
	32
	33	number[0].append(Coordinate(x, y))
	34	number[1] += item
	35	continue
	36
	37	if number is not None:
	38	numbers.append((number[0], int(number[1])))
	39	number = None
	40
	41	if item != '.':
	42	symbols.add(Coordinate(x, y))
	43
	44	if number is not None:
	45	numbers.append((number[0], int(number[1])))
	46
	47	return schematic, numbers, symbols
	48
	49
	50	class AssignmentOne(Assignment):
	51	example_result = 4361
	52
	53	def is_part_number(self, number_coordinates: list[Coordinate], symbols: set[Coordinate]) -> bool:
	54	return len(self.symbol_overlap(number_coordinates, symbols)) > 0
	55
	56	def run(self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]) -> int:
	57	_, numbers, symbols = input
	58
	59	part_numbers = []
	60
	61	for coordinates, number in numbers:
	62	if self.is_part_number(coordinates, symbols):
	63	part_numbers.append(number)
	64
	65	return sum(part_numbers)
	66
	67
	68	class AssignmentTwo(Assignment):
	69	example_result = 467835
	70
	71	def run(self, input: tuple[list[tuple[list[Coordinate], int]], set[Coordinate]]) -> int:
	72	schematic, numbers, symbols = input
	73
	74	possible_gears = {}
	75
	76	for coordinates, number in numbers:
	77	for symbol in self.symbol_overlap(coordinates, symbols):
	78	if schematic[symbol.y][symbol.x] != '*':
	79	continue
	80
	81	if symbol not in possible_gears:
	82	possible_gears[symbol] = []
	83
	84	possible_gears[symbol].append(number)
	85
	86	return sum([
	87	reduce(
	88	lambda total, number: total * number,
	89	numbers,
	90	1
	91	)
	92	for symbol, numbers in possible_gears.items()
	93	if len(numbers) > 1
	94	])


diff --git a/day3/example.txt b/day3/example.txt new file mode 100644 index 0000000..b20187f --- /dev/null +++ b/day3/example.txt
@@ -0,0 +1,10 @@
	1	467..114..
	2	...*......
	3	..35..633.
	4	......#...
	5	617*......
	6	.....+.58.
	7	..592.....
	8	......755.
	9	...$.*....
	10	.664.598..


diff --git a/day3/input.txt b/day3/input.txt new file mode 100644 index 0000000..c1073d9 --- /dev/null +++ b/day3/input.txt
@@ -0,0 +1,140 @@
	1	.....613...................................439............498.........................438......617....343.............942...................
	2	...................790...........269..735............................/679..............444.................147................441.....
	3	....539......422.............662..........691..........124.15..675.................=.......404...872............237......930.....+......
	4	........334.............861.........%....479..........424.......+.@.......402.......314...905................833........*293................
	5	..........#.......................906................................950.....................712...437.........142.359........551.14......
	6	....509.....=...........890...................&........9................./..847.154..568............@...102................280...*..........
	7	.......950.67.............-......161.......530....=...................=................./..............@.......................426........
	8	614............................................59.591.....259.......342...427..........29../.........-....................946.............
	9	.......896........808..............6..........................35............./......538.....572....510...677380...........=...............
	10	....................534..814................879...............................615/....*............................90.........580...413...
	11	.......810..........................................714.260..498..........386..........877......754........793...943............./........
	12	.....................845..#..483........55...643.............&.....421..+.....+...527.....938...................*...993...............706.
	13	....339..370..........-.540.@.....337..................39................404......&..........483...308.....567................../.......
	14	................994....................855..356.768.....*.....114...@195..................976....-...............496.61...610...369.200...
	15	..........15...........@890...447...................303......................821..251....................8........*....+................
	16	...962.............260...................@..716....893..............304............*.....537.........805.....#..........................388.
	17	............201........................281.............471............./.....=....959...............%..238....180..641@...................
	18	....278.........132..........65...&.........920..............831..97..828.....533......#368............../.......*......66-...............
	19	.............................627......343..........111..........................................*.100$........693..........780..........
	20	...974........474..537.759.101.......366....................183...............461*178..850.......644.........57.............................
	21	..........67$.@.........................*...879..................54.100..355.................794.............=.....................826.530..
	22	494549...............670...=194.....173............329=....14................811303........891..541........975........................
	23	........................................403.............591................667............630.........$.667....#.........819.........19.
	24	572...@.......%.......271..........910.........578.551..........818.534...........................217.........809.....262.....+.............
	25	.....105.......748..............%........637..............515.......................119............143..@.....258.......................
	26	.20........115........714....525...491......768...647........................433..../............583.......404..#..............268........
	27	.......650.......%......%.............311............275.283.306..=659.....................499........@................652.176............
	28	..100.....#.193.637..........828...806.............725......................................@......418........370.......@........86&..977.
	29	......350................229..$.............................%...724.....#.981582..$................................38.....38.503......$...
	30	.......#..380........................311........%..........968......647..........33..................63413......72./...%................
	31	.............20352.......+........./...........295.....................888..........277...938..662.........3.........619.320...766........
	32	....149...883..............817...........163............959..........8......811%..................&...354..+.....392......................
	33	....................727........789.....................@...............739.........537....326...................*.......&925.........938..
	34	..383..505.166......-................565......491........136.....693..........870.%...........#...........654..&..313.....................
	35	.........=..$..801....962.....787..........181......186.../..........*103........+............826....599.......289.....311.768..........986.
	36	.292.414..................................................214.....................439.@130...........+...52..................989......
	37	.........221......149....405...@...........393..........714.....&.......652........................607.............412....682.......982...
	38	...............................491.....................................-......906..909.......885.....%.747......19........................
	39	......567.........193........1..................925.........78......117.....797*................@............208............................
	40	.............943.......571........919.487............/....+......................................................433.922.......795......
	41	....66..........92..........367...........883.625.....479....852@.............277.635............860.......940..21....*....995.....&......
	42	.........206............595%................................/.............................691...........................*...............
	43	.....766.............&................=...........*...649-.241...56..@724..713..836.863.......=....676...+..824.506......247..$132..........
	44	.....................278..........917..864.....219...............+............%.*......................973.........................744......
	45	.........912...............%......................979....-953...................733.............&.........................................
	46	.........@........$........995....905......552...................391.........40=.......388.......141...................731*640.....511......
	47	123..662...989.672....................................611......+.....%910.................5......................584......................
	48	......../...........................306.....289..................................673.............970..51....@...................#.....
	49	...916.23.......14..828........908.................181.227......26....190.....723.........877...513...@.....977......319..867/...997..76..
	50	..........158........=............$..............................%............#...605....................264.......569.....................1
	51	.....453..............................815.430........946..840.........................456.........152................23...................
	52	216......389...........930...................211.......-........635..472185.................................@444...*.....783...966......
	53	......72...........................527...+...............636....................746....575.....5...276.821........568.+.........-.......
	54	..765...........991........686..142......588......@...........366....395...............*...............................983...266..........
	55	.................+..................383.............330..&......%...............337.853.337........927.@703.&513......................855...
	56	...652................=../..@.............431....48......512...............541....%.................+.............-...835/.......%......*...
	57	.......205.....510.92..901.778.................../............588.........#..........@....................968.603........820...75....844..
	58	...560............/........................597...................&.......#............698..........427........*...../249....................
	59	..............817..........50..........208..................149..........169........................*......835..............522.............
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