I think those are more interesting. I like seeing the process.
Hammerheart
That's kindeof poetic tbh
Python
(Part 1) omg I can't believe this actually worked first try!
with open('input') as data:
parts = data.read().rstrip().split("\n\n")
ordering_rules = parts[0].split("\n")
updates = parts[1].split("\n")
correct_updates = []
middle_updates = []
def find_relevant_rules(pg_num: str, rules: list[str]) -> list[str] | None:
for rule in rules:
return list(filter(lambda x: x.split("|")[0] == pg_num, rules))
def interpret_rule(rule: str) -> list[str]:
return rule.split("|")
def interpret_update(update: str) -> list[str]:
return update.split(",")
def find_middle_update_index(update: list[str]) -> int:
num_of_elements = len(update)
return num_of_elements // 2
for update in updates:
is_correct = True
for i, page in enumerate(interpret_update(update)):
rules_to_check = find_relevant_rules(page, ordering_rules)
for rule in rules_to_check:
if rule.split("|")[1] in interpret_update(update)[:i]:
is_correct = False
if is_correct:
correct_updates.append(update)
for update in correct_updates:
split_update = update.split(",")
middle_updates.append(int(split_update[find_middle_update_index(split_update)]))
print(sum(middle_updates))
Part 1:
with open('input') as data:
lines = [l.strip() for l in data.readlines()]
# Remove empty line
class Result():
def __init__(self):
self.count = 0
def analyze_lines(lines: list[str]):
ans.count += get_rights(lines)
ans.count += get_ups(lines)
ans.count += get_downs(lines)
ans.count += get_down_rights(lines)
ans.count += get_down_lefts(lines)
ans.count += get_up_lefts(lines)
ans.count += get_up_rights(lines)
for line in lines:
ans.count += get_lefts(line)
def get_ups(lines: list[str]) -> int:
up_count = 0
for i_l, line in enumerate(lines):
result = ""
if i_l < 3:
continue
for i_c, char in enumerate(line):
if char == "X":
result = char
result += "".join([lines[i_l - n][i_c] for n in range(1, 4)])
if result == "XMAS":
up_count += 1
else:
result = ""
return up_count
def get_downs(lines: list[str]) -> int:
down_count = 0
for i_l, l in enumerate(lines):
result = ""
for i_c, c in enumerate(l):
if c == "X":
result += c
try:
result += "".join([lines[i_l + n][i_c] for n in range(1, 4)])
except IndexError:
result = ""
continue
finally:
if result == "XMAS":
down_count += 1
result = ""
return down_count
def get_lefts(line: str) -> int:
left_count = 0
for i, char in enumerate(line):
if i < 3:
continue
elif char == "X" and line[i-1] == "M" and line[i-2] == "A" and line[i-3] == "S":
left_count += 1
return left_count
def get_rights(lines: list[str]) -> int:
right_counts = 0
for l in lines:
right_counts += l.count("XMAS")
return right_counts
def get_down_rights(lines: list[str]) -> int:
down_right_count = 0
for i_l, l in enumerate(lines):
result = ""
for i_c, c in enumerate(l):
if c == "X":
result += c
try:
result += "".join(
[lines[i_l + n][i_c + n] for n in range(1,4)]
)
except IndexError:
result = ""
continue
finally:
if result == "XMAS":
down_right_count += 1
result = ""
return down_right_count
def get_down_lefts(lines: list[str]) -> int:
down_left_count = 0
for i_l, l in enumerate(lines):
result = ""
for i_c, c in enumerate(l):
if i_c < 3:
continue
if c == "X":
result += c
try:
result += "".join(
[lines[i_l + n][i_c - n] for n in range(1,4)]
)
except IndexError:
result = ""
continue
finally:
if result == "XMAS":
down_left_count += 1
result = ""
return down_left_count
def get_up_rights(lines: list[str]) -> int:
up_right_count = 0
for i_l, l in enumerate(lines):
result = ""
if i_l < 3:
continue
for i_c, c in enumerate(l):
if c == "X":
result += c
try:
result += "".join(
[lines[i_l - n][i_c + n] for n in range(1,4)]
)
except IndexError:
result = ""
continue
finally:
if result == "XMAS":
up_right_count += 1
result = ""
return up_right_count
def get_up_lefts(lines: list[str]) -> int:
up_left_count = 0
for i_l, l in enumerate(lines):
result = ""
if i_l < 3:
continue
for i_c, c in enumerate(l):
if i_c < 3:
continue
if c == "X":
result = c
try:
result += "".join(
[lines[i_l - n][i_c - n] for n in range(1,4)]
)
except IndexError as e:
result = ""
continue
finally:
if result == "XMAS":
up_left_count += 1
result = ""
return up_left_count
ans = Result()
analyze_lines(lines)
print(ans.count)
Part 2:
with open('input') as data:
lines = list(filter(lambda x: x != '', [l.strip() for l in data.readlines()]))
xmases = 0
for i in range(1, len(lines)):
for j in range(1, len(lines[i])):
if lines[i][j] == "A":
try:
up_back = lines[i-1][j-1]
down_over = lines[i+1][j+1]
up_over = lines[i-1][j+1]
down_back = lines[i+1][j-1]
except IndexError:
continue
else:
if {up_back, down_over} == set("MS") and {up_over, down_back} == set("MS"):
xmases += 1
print(xmases)
I actually found part two A LOT easier than part 1.
I needed to read this. Thank you.
My first insinct was similar, add line breaks to the do and dont modifiers. But I got toa caught up thinking id have to keep track of the added characters, I wound up just abusing split()-
I did part 2 live with the python interactive shell. I deleted all the stuff where I was just exploring ideas.
part 1:
import re
def multiply_and_add(data: "str") -> int:
digit_matches = re.findall(r"mul\(\d{0,3},\d{0,3}\)", data)
result = 0
for _ in digit_matches:
first = _.split("(")[1].split(")")[0].split(",")[0]
second = _.split("(")[1].split(")")[0].split(",")[1]
result += int(first) * int(second)
return result
with open("input") as file:
data = file.read()
answer = multiply_and_add(data)
print(answer)
part 2:
Python 3.11.2 (main, Aug 26 2024, 07:20:54) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import solution2
<re.Match object; span=(647, 651), match='do()'>
>>> from solution2 import *
>>> split_on_dont = data.split("don't()")
>>> valid = []
>>> valid.append(split_on_dont[0])
>>> for substring in split_on_dont[1:]:
... subsubstrings = substring.split("do()", maxsplit=1)
... for subsubstring in subsubstrings[1:]:
... valid.append(subsubstring)
...
>>> answer = 0
>>> for _ in valid:
... answer += multiply_and_add(_)
...
>>> answer
103811193
this took me so fucking long and in the end i just went for brute force anyway. there are still remnants of some of previous, overly complicated, failed attempts, like the hideous global removed
. In the end, I realized I was fucking up by using remove() instead of pop(), it was causing cases with duplicates where the removal of one would yield a safe result to count as unsafe.
def is_safe(report: list[int]) -> bool:
global removed
acceptable_range = [_ for _ in range(-3,4) if _ != 0]
diffs = []
if any([report.count(x) > 2 for x in report]):
return False
for i, num in enumerate(report[:-1]):
cur = num
next = report[i+1]
difference = cur - next
diffs.append(difference)
if difference not in acceptable_range:
return False
if len(diffs) > 1:
if diffs[-1] * diffs[-2] <= 0:
return False
return True
with open('input') as reports:
list_of_reports = reports.readlines()[:-1]
count = 0
failed_first_pass = []
failed_twice = []
for reportsub in list_of_reports:
levels = [int(l) for l in reportsub.split()]
original = levels.copy()
if is_safe(levels):
safe = True
count += 1
else:
failed_first_pass.append(levels)
for report in failed_first_pass:
print(report)
working_copy = report.copy()
for i in range(len(report)):
safe = False
working_copy.pop(i)
print("checking", working_copy)
if is_safe(working_copy):
count += 1
safe = True
break
else:
working_copy = report.copy()
print(count)
I like that, might try it myself, since I actually use those keys, but never wanted to jump to the highest or lowest visible line. Closest I get is gg and G.
The wire mad men
I think the default mod key is the 'super' key (formerly known as the windows key). It might be alt actually, I don't remember. Super + 1-9 switches between workspaces, which hold your windows. Shift + super + 1-9 moves a window to another workspace. you can find more key bindings by viewing $XDG_CONFIG_HOME/sway/config (or wherever config files go on your system).