Advent of Code Leaderboard 2024 / Day 1

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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), 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.

Code publicly visible

Leaderboard

	Name	Language	Tokens Sum	Tokens Part 1	Tokens Part 2	Last change
1	Sharparam	Ruby	72	38	34	24 hours ago
2	Ricardo Bittencourt	Python	75	34	41	4 hours ago
4	Gorane7	Python	149	80	69	27 hours ago
5	Valentin Slawicek	Kotlin	157	83	74	32 hours ago
6	Evan	Swift	195	103	92	28 hours ago
7	David Basden	Python	10056	56	-	15 hours ago

74 tokens in Kotlin for part 2 by Valentin Slawicek

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funmain(){
vallines=generateSequence(::readLine).toList()
valnums2=lines.map{it.substringAfterLast(' ').toInt()}
println(lines.map{it.substringBefore(' ').toInt()}.sumOf{num1->num1*nums2.count{it==num1}})
}