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Advent of Code Leaderboard 2023 / Day 3

View puzzle on adventofcode.com

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Leaderboard

Name Language Tokens Sum Tokens Part 1 Tokens Part 2 Last change
1 Profile imageLiquidFun Python 555 275 280 11 months ago
2 Profile imageValentin Slawicek Kotlin 1198 576 622 11 months ago
3 Profile imageVisible-Bag4062 C++ 10473 473 - 12 months ago

Rules

  • You're welcome to participate alone or in a team.
  • You may submit multiple solutions and explore different programming languages.
  • Stick to the standard library of your language, no further dependencies/libraries, except the ones which OneCompiler provides (e.g. NumPy for Python).
  • Ensure your code aligns to the template (Python, Rust, Go, Kotlin, JavaScript, C#, TypeScript, C++, Java, C, Swift, Scala, Ruby, Bash), reading the puzzle input from stdin (terminated with end-of-file), and printing the solution to stdout.
  • Please refrain from making network requests, reading data from files, or storing data in variable/function/class names for reflection.
  • Your code must be able to process all valid Advent of Code inputs. Golfcoder might reevaluate correctness of your solution with different inputs after your submission.

275 tokens in Python for part 1 by LiquidFun

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fromcollectionsimportdefaultdict

lines=open(0).read().splitlines()
gear_to_num=defaultdict(list)
s1=0

is_valid=lambday,x:0<=y<len(lines)and0<=x<len(lines[0])

foryinrange(len(lines)):
forx_startinrange(len(lines[y])):
x_end=x_start
iflines[y][x_start].isdigit()and(notis_valid(y,x_start-1)ornotlines[y][x_start-1].isdigit()):
whileis_valid(y,x_end+1)andlines[y][x_end+1].isdigit():
x_end+=1
good=False
forydinrange(y-1,y+2):
forxdinrange(x_start-1,x_end+2):
ifis_valid(yd,xd)andlines[yd][xd]notin'.0123456789':
good=True
iflines[yd][xd]in'*':
gear_to_num[(yd,xd)].append(int(lines[y][x_start:x_end+1]))

s1+=good*int(lines[y][x_start:x_end+1])

print(s1)