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red 2023-12-03 03:57:45 -06:00
parent 6c1f70106b
commit 02370afca8
3 changed files with 648 additions and 0 deletions
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119
day3-1.py Normal file
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import time
valid_symbols = "#$%&*+-/=@"#"/,!@#$%^&*()_-+={}[]"
w,h = (140,140)
with open("input_day3.txt") as file:
lines = [line.rstrip() for line in file]
matrix = [[0 for x in range(w)] for y in range(h)]
for y in range(h):
for x in range(w):
matrix[y][x] = lines[y][x]
class number:
def __init__(self,x,y,length=1,num=0):
self.x = x
self.y = y
self.length = length
self.number = num
def append(self,num=0):
self.length+=1
self.number = int( f"{self.number}{num}" )
def is_valid(num:number) -> bool:
#but first check if number is valid
result = False
for offset in range(num.length):
x = num.x+offset
y = num.y
check_upperleft = True
check_upper = True
check_upperright = True
check_midleft = True
check_midright = True
check_lowerleft = True
check_lower = True
check_lowerright = True
#if on first y dont check above
if num.y == 0:
check_upperleft,check_upper,check_upperright = (False,False,False)
#if on last y dont check below
if num.y == h-1:
check_lowerleft,check_lower,check_lowerright = (False,False,False)
# if on left or right horizontal edge
if x == 0:
check_midleft = False
if x >= w-1:
check_midright = False
check_upperright = False
check_lowerright = False
#now do comparison
if check_upperleft:
if is_symbol(str(matrix[y-1][x-1])):
return True
if check_upper:
if is_symbol(str(matrix[y-1][x])):
return True
if check_upperright:
if is_symbol(str(matrix[y-1][x+1])):
return True
if check_midleft:
if is_symbol(str(matrix[y][x-1])):
return True
if check_midright:
if is_symbol(str(matrix[y][x+1])):
return True
if check_lowerleft:
if is_symbol(str(matrix[y+1][x-1])):
return True
if check_lower:
if is_symbol(str(matrix[y+1][x])):
return True
if check_lowerright:
if is_symbol(str(matrix[y+1][x+1])):
return True
return False
def is_symbol(c):
if c in valid_symbols:
return True
return False
numbers = []
#140x140 matrix
y=-1
#look at every element in matrix for a number
for line in lines:
#start new line
y+=1
is_on_number = False
for x in range(w):
c = line[x]
if c.isnumeric():
if not is_on_number:
#start a new number record
is_on_number = True
new_num = number(x,y,num=int(c))
elif x == w-1:
new_num.append(c)
if is_valid(new_num):
numbers.append(new_num)
print(new_num.number)
is_on_number = False
else:
#append to existing number
new_num.append(c)
else:
#not a number anymore so finish the number and add to num list if number is valid
if is_on_number:
if is_valid(new_num):
numbers.append(new_num)
#print(new_num.number)
#time.sleep(0.1)
is_on_number = False
sum = 0
for num in numbers:
sum+=int(num.number)
print(sum)

389
day3-2.py Normal file
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import time
valid_symbols = "#$%&*+-/=@"#"/,!@#$%^&*()_-+={}[]"
w,h = (140,140)
with open("input_day3.txt") as file:
lines = [line.rstrip() for line in file]
matrix = [[0 for x in range(w)] for y in range(h)]
for y in range(h):
for x in range(w):
matrix[y][x] = lines[y][x]
class number:
def __init__(self,x,y,length=1,num=0):
self.x = x
self.y = y
self.length = length
self.number = num
def append(self,num=0):
self.length+=1
self.number = int( f"{self.number}{num}" )
def is_valid(num:number) -> bool:
#but first check if number is valid
result = False
for offset in range(num.length):
x = num.x+offset
y = num.y
check_upperleft = True
check_upper = True
check_upperright = True
check_midleft = True
check_midright = True
check_lowerleft = True
check_lower = True
check_lowerright = True
#if on first y dont check above
if num.y == 0:
check_upperleft,check_upper,check_upperright = (False,False,False)
#if on last y dont check below
if num.y == h-1:
check_lowerleft,check_lower,check_lowerright = (False,False,False)
# if on left or right horizontal edge
if x == 0:
check_midleft = False
if x >= w-1:
check_midright = False
check_upperright = False
check_lowerright = False
#now do comparison
if check_upperleft:
if is_symbol(str(matrix[y-1][x-1])):
return True
if check_upper:
if is_symbol(str(matrix[y-1][x])):
return True
if check_upperright:
if is_symbol(str(matrix[y-1][x+1])):
return True
if check_midleft:
if is_symbol(str(matrix[y][x-1])):
return True
if check_midright:
if is_symbol(str(matrix[y][x+1])):
return True
if check_lowerleft:
if is_symbol(str(matrix[y+1][x-1])):
return True
if check_lower:
if is_symbol(str(matrix[y+1][x])):
return True
if check_lowerright:
if is_symbol(str(matrix[y+1][x+1])):
return True
return False
def is_symbol(c):
if c in valid_symbols:
return True
return False
numbers = []
#140x140 matrix
y=-1
#look at every element in matrix for a number
for line in lines:
#start new line
y+=1
is_on_number = False
for x in range(w):
c = line[x]
if c.isnumeric():
if not is_on_number:
#start a new number record
is_on_number = True
new_num = number(x,y,num=int(c))
elif x == w-1:
new_num.append(c)
if is_valid(new_num):
numbers.append(new_num)
print(new_num.number)
is_on_number = False
else:
#append to existing number
new_num.append(c)
else:
#not a number anymore so finish the number and add to num list if number is valid
if is_on_number:
if is_valid(new_num):
numbers.append(new_num)
#print(new_num.number)
#time.sleep(0.1)
is_on_number = False
def check_gear_ratio(x,y):
check_upperleft = True
check_upper = True
check_upperright = True
check_midleft = True
check_midright = True
check_lowerleft = True
check_lower = True
check_lowerright = True
#if on first y dont check above
if y == 0:
check_upperleft,check_upper,check_upperright = (False,False,False)
#if on last y dont check below
if y == h-1:
check_lowerleft,check_lower,check_lowerright = (False,False,False)
# if on left or right horizontal edge
if x == 0:
check_midleft = False
check_upperleft = False
check_lowerleft = False
if x >= w-1:
check_midright = False
check_upperright = False
check_lowerright = False
num_0 = False
num_1 = False
num_2 = False
num_3 = False
num_4 = False
num_5 = False
num_6 = False
num_7 = False
total_nums = 0
nums0=None
nums1=None
if check_upperleft:
if str(matrix[y-1][x-1]).isnumeric():
num_0 = True
total_nums+=1
if check_upper:
if str(matrix[y-1][x]).isnumeric():
num_1 = True
if not num_0:
total_nums+=1
if check_upperright:
if str(matrix[y-1][x+1]).isnumeric():
num_2 = True
if not num_1:
total_nums+=1
if check_midleft:
if str(matrix[y][x-1]).isnumeric():
num_3 = True
total_nums+=1
if check_midright:
if str(matrix[y][x+1]).isnumeric():
num_4 = True
total_nums+=1
if check_lowerleft:
if str(matrix[y+1][x-1]).isnumeric():
num_5 = True
total_nums+=1
if check_lower:
if str(matrix[y+1][x]).isnumeric():
num_6 = True
if not num_5:
total_nums+=1
if check_lowerright:
if str(matrix[y+1][x+1]).isnumeric():
num_7 = True
if not num_6:
total_nums+=1
if total_nums==2:
if num_0:
if num_1:
if num_2:
#three-digit string
nums0 = f"{matrix[y-1][x-1]}{matrix[y-1][x]}{matrix[y-1][x+1]}"
else: #if num_0, num_1, NOT num_2
if str(matrix[y-1][x-2]).isnumeric():
nums0 = f"{matrix[y-1][x-2]}{matrix[y-1][x-1]}{matrix[y-1][x]}"
else: #if num_0, NOT num_1
#num_0 is true so number is ends on top-left corner
if str(matrix[y-1][x-2]).isnumeric():
if str(matrix[y-1][x-3]).isnumeric():
nums0 = f"{matrix[y-1][x-3]}{matrix[y-1][x-2]}{matrix[y-1][x-1]}"
else:
nums0 = f"{matrix[y-1][x-2]}{matrix[y-1][x-1]}"
else:
nums0 = f"{matrix[y-1][x-1]}"
#check num_2
if num_2:
if str(matrix[y-1][x+2]).isnumeric():
if str(matrix[y-1][x+3]).isnumeric():
nums1 = f"{matrix[y-1][x+1]}{matrix[y-1][x+2]}{matrix[y-1][x+3]}"
else:
nums1 = f"{matrix[y-1][x+1]}{matrix[y-1][x+2]}"
else:
nums1 = f"{matrix[y-1][x+1]}"
else: #if NOT num_0
if num_1: #NOt num_0, num_1
if num_2: #NOT num_0, num_1, num_2
#num 1 and num 2 are numbers so maybe the next digit is too
if str(matrix[y-1][x+2]).isnumeric():
nums0 = f"{matrix[y-1][x]}{matrix[y-1][x+1]}{str(matrix[y-1][x+2])}"
else:
nums0 = f"{matrix[y-1][x]}{matrix[y-1][x+1]}"
else: #if NOT num 0, num 1, NOT num_2
nums0 = f"{matrix[y-1][x]}"
else: #if NOT num0, NOT num_1
if num_2: #if NOT num0, NOT num_1, num_2
if str(matrix[y-1][x+2]).isnumeric():
if str(matrix[y-1][x+3]).isnumeric():
nums0 = f"{matrix[y-1][x+1]}{matrix[y-1][x+2]}{matrix[y-1][x+3]}"
else:
nums0 = f"{matrix[y-1][x+1]}{matrix[y-1][x+2]}"
else:
nums0 = f"{matrix[y-1][x+1]}"
else: #if NOT num0, NOT num_1, NOT num_2
pass
if not nums1 is None:
return int(nums0)*int(nums1)
if num_3:
if str(matrix[y][x-2]).isnumeric():
if str(matrix[y][x-3]).isnumeric():
if nums0 is None:
nums0 = f"{matrix[y][x-3]}{matrix[y][x-2]}{matrix[y][x-1]}"
else:
nums1 = f"{matrix[y][x-3]}{matrix[y][x-2]}{matrix[y][x-1]}"
else:
if nums0 is None:
nums0 = f"{matrix[y][x-2]}{matrix[y][x-1]}"
else:
nums1 = f"{matrix[y][x-2]}{matrix[y][x-1]}"
else:
if nums0 is None:
nums0 = f"{matrix[y][x-1]}"
else:
nums1 = f"{matrix[y][x-1]}"
if not nums1 is None:
return int(nums0)*int(nums1)
if num_4:
if str(matrix[y][x+2]).isnumeric():
if str(matrix[y][x+3]).isnumeric():
if nums0 is None:
nums0 = f"{matrix[y][x+1]}{matrix[y][x+2]}{matrix[y][x+3]}"
else:
nums1 = f"{matrix[y][x+1]}{matrix[y][x+2]}{matrix[y][x+3]}"
else:
if nums0 is None:
nums0 = f"{matrix[y][x+1]}{matrix[y][x+2]}"
else:
nums1 = f"{matrix[y][x+1]}{matrix[y][x+2]}"
else:
if nums0 is None:
nums0 = f"{matrix[y][x+1]}"
else:
nums1 = f"{matrix[y][x+1]}"
if not nums1 is None:
return int(nums0)*int(nums1)
if num_5:
if num_6:
if num_7:
#three-digit string
if nums0 is None:
nums0 = f"{matrix[y+1][x-1]}{matrix[y+1][x]}{matrix[y+1][x+1]}"
else:
nums1 = f"{matrix[y+1][x-1]}{matrix[y+1][x]}{matrix[y+1][x+1]}"
else: #if num_0, num_1, NOT num_2
if str(matrix[y+1][x-2]).isnumeric():
if nums0 is None:
nums0 = f"{matrix[y+1][x-2]}{matrix[y+1][x-1]}{matrix[y+1][x]}"
else:
nums1 = f"{matrix[y+1][x-2]}{matrix[y+1][x-1]}{matrix[y+1][x]}"
else: #if num_0, NOT num_1
#num_0 is true so number is ends on top-left corner
if str(matrix[y+1][x-2]).isnumeric():
if str(matrix[y+1][x-3]).isnumeric():
if nums0 is None:
nums0 = f"{matrix[y+1][x-3]}{matrix[y+1][x-2]}{matrix[y+1][x-1]}"
else:
nums1 = f"{matrix[y+1][x-3]}{matrix[y+1][x-2]}{matrix[y+1][x-1]}"
else:
if nums0 is None:
nums0 = f"{matrix[y+1][x-2]}{matrix[y+1][x-1]}"
else:
nums1 = f"{matrix[y+1][x-2]}{matrix[y+1][x-1]}"
else:
if nums0 is None:
nums0 = f"{matrix[y+1][x-1]}"
else:
nums1 = f"{matrix[y+1][x-1]}"
#check num_2
if num_7:
if str(matrix[y+1][x+2]).isnumeric():
if str(matrix[y+1][x+3]).isnumeric():
nums1 = f"{matrix[y+1][x+1]}{matrix[y+1][x+2]}{matrix[y+1][x+3]}"
else:
nums1 = f"{matrix[y+1][x+1]}{matrix[y+1][x+2]}"
else:
nums1 = f"{matrix[y+1][x+1]}"
else: #if NOT num_0
if num_6: #NOt num_0, num_1
if num_7: #NOT num_0, num_1, num_2
#num 1 and num 2 are numbers so maybe the next digit is too
if str(matrix[y+1][x+2]).isnumeric():
if nums0 is None:
nums0 = f"{matrix[y+1][x]}{matrix[y+1][x+1]}{str(matrix[y+1][x+2])}"
else:
nums1 = f"{matrix[y+1][x]}{matrix[y+1][x+1]}{str(matrix[y+1][x+2])}"
else:
if nums0 is None:
nums0 = f"{matrix[y+1][x]}{matrix[y+1][x+1]}"
else:
nums1 = f"{matrix[y+1][x]}{matrix[y+1][x+1]}"
else: #if NOT num 0, num 1, NOT num_2
if nums0 is None:
nums0 = f"{matrix[y+1][x]}"
else:
nums1 = f"{matrix[y+1][x]}"
else: #if NOT num0, NOT num_1
if num_7: #if NOT num0, NOT num_1, num_2
if str(matrix[y+1][x+2]).isnumeric():
if str(matrix[y+1][x+3]).isnumeric():
if nums0 is None:
nums0 = f"{matrix[y+1][x+1]}{matrix[y+1][x+2]}{matrix[y+1][x+3]}"
else:
nums1 = f"{matrix[y+1][x+1]}{matrix[y+1][x+2]}{matrix[y+1][x+3]}"
else:
if nums0 is None:
nums0 = f"{matrix[y+1][x+1]}{matrix[y+1][x+2]}"
else:
nums1 = f"{matrix[y+1][x+1]}{matrix[y+1][x+2]}"
else:
if nums0 is None:
nums0 = f"{matrix[y+1][x+1]}"
else:
nums1 = f"{matrix[y+1][x+1]}"
else: #if NOT num0, NOT num_1, NOT num_2
pass
if not nums1 is None:
print(f"y {nums0} {nums1} {y}")
return int(nums0)*int(nums1)
return -1
sum = 0
for y in range(h):
for x in range(w):
c = matrix[y][x]
if c == '*':
#check all 8 directions for part numbers
#since we are an asterisk, we don't have to check if numbers in range are valid since they automatically are :3
gear_ratio = check_gear_ratio(x,y)
if not gear_ratio == -1:
sum+=int(gear_ratio)
print(sum)

140
input_day3.txt Normal file
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...........................................751........501...................................890.231...............829..168......143.........
......................................*.........841....*....../................+..311.......................441..........*...........202....
.........332...60....537..697.......901.................609....678....261.....90................870....519...........272..449.......%.......
840.........*...........*....*..968......273...440.415..................*..................&......*...*......447................883...&.....
.....34....651.786...646...804.*..........*.../.....-..........=...............94......96..760.222.....637.%...&.290...55..368.....*..565...
.518*..........+................717......80.............231.....610...810*942..........*...................640...*................499.......
...................189......................772.........*........................550..626...676-......213......432...........790.......834..
......995..=..........&..955...........391......387...825..362........481...334..*................579.*...84%.......506./...................
........*.700..............*..........*.......+..*............*...170.%..........733........658..*....832............-..777..616.915........
......322...........977.526............852...410.14.........28.....$.........831.....%.....@.....586.........69.....................+.......
...............................30.........................*............./.....*.......505....274...........=.#....344...52.308..............
.........123*504.................-...-..................15.968.....427.439...456..............*..935../..441......*.....*..*.....195.794....
..729.............186...............786..476*168.653*.............*........................148...+...962...................271......*.......
............23.......................................435.491*4..40...-...26.......11..133..................*758.-....215....................
466...656..=............957.........463.............................372..*..............................894.....661.......903.......%283....
..................421...*.................32..946...%....668.886..........30.682......108...........................292..................189
....759......379.*.....380.......................-..942..=....*...891......../.......*....193.......703..946/......./...................*...
.39*.........*...847............80-..........................886.*.....+.............418.@......763............432.....................873..
...........916.......................335..369.....................651..624.445*809.........*695...*..267.......+....666.641.888.480.........
...@38...............685..149..........&.*..........312..................................27......544....*.420.........*....*..........*750..
................&.....*..*...............208...........*...361.....&.....569................*986.....295...*..751..499.............549......
.....@.......626...390..761....*.............$.........319....+.289..250*................189.....947......804....*......742*................
.....660....................342.582.......24..611..................................354.*............*.............997.......595....874......
...................................................109.........*...108.........252.*...168.@88...973................................#...$...
214.....161..............499-.......................%........497...*....419.....*...52.........................83.........*5.............739
.......*...............................156..........................88........798..............204...............*.....444.......974........
.108..39..................*651.395#.....*.............963.......911...............886.................532.....417...................-.......
....*..........921*82..321...........597...@321..409.....*254....../........237...*.......................&......./...................=308..
.954..110........................................../.................478....*.....423.........990....187.429..#...506..........614*.........
........#...211.............................575.....................*....893...13.........811*................673.....85...........465......
..................393...........782.............-166.........=.831...401........*.348....................477...........*.819..#261..........
.....761..........*...536.....+....&.................549..427.....*...........924.@......283.50............*........795...=.................
....*....-.51....617./......954...................................248...................*........776....407.................................
.756..986..............326........516............387..342....336............142=.823..354....233.............$...........523........336.....
..........+495...856.....*....363....*188.177.4..+..............*....=512....................*...835......458..348..........*.......=....445
................*.........638.$..............*.......214.........190......293...........&.128......*............*..167......711.........*...
...565.......842.................#.....................@...............=..#...........195.......984.....201#...530...................640....
...*...........................289.401.......251...626..........198*..277....$..............%.......................719..........964........
...397..910+............................$....*.....&.....936..............893../...........249.....#334.299.../503..........*....*..........
..............................918-...420...405..............$...226.729.........910........................*.........892....76....511.......
...674=...282*418......#................................................962..........=693.....760..........499.908/..../.......$........*926
.......................906..../......485*..........*......9....+....564*.........132.............*..........................137.............
...........................300...........960....503.572......490............608*.......*....504.979..25......230.................925...@....
..673............787..............................................433*164.......961.956.596.........*...610...............340.......#...765.
....*....................8*............217*805..................*..................................427..*........680*.......................
....247..............699...848....................651........137.870.673............696..................660.........432...593=.........906.
..........209.........*....................327............................%..........%................3.....................................
.....%.../.....482...708...782............*..........520..................947....390...420.....%..............456.....667*544............732
..305.......%.....*......%....%....220...419....608..*.............282............&....#........269......117-....*834.........546#..........
............137...145.128...........%.............*.555.............*.......................=...............................................
....988.299.....................940.......978..971........437.......79..........*.........238.497...490.912.539.........85......157-........
..........*.660....335......../...%........................*..224........@...556.368.............*...*...*..*...551......................474
291..217..1..................321......-...................17.....*.......810............411......573.688...273.....*....$.............../...
....*.........=.......701............781...*....................761...........315........*........................895.445...................
...............467.......*...............444................................/../..........925..530+....50.....-.............................
........+..........545....970........./........767......543..............953........389.................$.....393......#....17....83........
.668.....577...&..@............803.....931......*............829..226*.............*.......-....114................=..9.....&............298
..../........239.......101...&...*..................419.....@.........922..17......598....704..*..................722...........768.........
.................776..*......156.163............419...@....................*...................465..+....................206=......-.*......
....506.891-.......=.499....................@......#..........992..664....270......*395..............519.......666..............37...566....
....&........251.................671.=.......474......429....*..../.............776.........#.............260.&....319......410*............
............*.....46...772.........#.441.........340=..-.....393.....452..../..............219......487..*........*.....697.................
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