Advent of Code Leaderboard 2025 / Day 1

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Part 1Part 2PythonRustGoKotlinJavaScriptC#TypeScriptC++JavaCSwiftScalaRubyBash
# Template for reading all lines from stdin and printing the line count to stdout. # Copy this code to your IDE to get started. from sys import stdin lines = stdin.readlines() print(len(lines))
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Leaderboard

	Name	Language	Tokens Sum	Tokens Part 1	Tokens Part 2	Last change
1	Frederik Bonfanti	Ruby	67	31	36	2 months ago
2	CornerMercury	Python	91	43	48	58 days ago
3	Allan Taylor	Python	95	45	50	2 months ago
4	N. Adhikary	Python	95	45	50	59 days ago
5	Benjamin Groves	Python	98	46	52	2 months ago
6	Abbas Moosajee	Python	114	55	59	2 months ago
7	Michael Böiers	Kotlin	117	54	63	2 months ago
8	progheal	C++	127	53	74	2 months ago
9	Hannah Lenk	C++	139	57	82	2 months ago
10	Akke	C	149	74	75	2 months ago
11	Valentin Slawicek	Kotlin	155	61	94	2 months ago
12	Jordan Perry	Python	160	67	93	2 months ago
13	Lafazar	Python	180	82	98	2 months ago
14	Vadzim Kapichenka	Kotlin	189	76	113	2 months ago
15	Norbert Kiesel	Kotlin	201	80	121	2 months ago
16	Olivier Mengué	TypeScript	10090	90	-	58 days ago
17	N. Adhikary	Kotlin	10106	106	-	51 days ago
18	N. Adhikary	Rust	10156	156	-	51 days ago

Solutions with 1 unsolved part get a penalty of 10000 tokens (indicated with "-").

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.