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Commit17d51d5

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author
Lukasz
committed
AoC 2021
1 parent77c6030 commit17d51d5

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5 files changed

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‎advent-of-code/2021/.gitignore

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# Generated by Cargo
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# will have compiled files and executables
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debug/
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target/
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# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
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# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
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Cargo.lock
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# These are backup files generated by rustfmt
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**/*.rs.bk
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# MSVC Windows builds of rustc generate these, which store debugging information
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*.pdb

‎advent-of-code/2021/README.md

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#Advent of code 2021 solutions in RUST by luk6xff

‎advent-of-code/2021/day01/Cargo.toml

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[package]
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name ="day01"
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version ="0.1.0"
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authors = ["luk6xff <lukasz.uszko@gmail.com>"]
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edition ="2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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itertools ="0.9"

‎advent-of-code/2021/day01/input.txt

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‎advent-of-code/2021/day01/src/main.rs

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use itertools::Itertools;
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fnparse_input(input:&str) ->Vec<i32>{
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input.lines()
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.filter_map(|n| n.parse::<i32>().ok())
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.collect()
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}
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fncombination_summing_to_n(input:&[i32],k_combinations:usize,n:i32) ->Option<Vec<i32>>{
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input.iter()
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.copied()
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.combinations(k_combinations)
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.find(|v| v.iter().sum::<i32>() == n)
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}
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fncommon_solution(k_combinations:usize){
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let input =parse_input(include_str!("../input.txt"));
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matchcombination_summing_to_n(&input, k_combinations,2020){
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Some(s) =>println!("Solution: {}", s.iter().product::<i32>()),
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None =>println!("No solution found"),
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}
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}
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fnpart_1(){
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common_solution(2)
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}
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fnpart_2(){
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common_solution(3)
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}
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fnmain(){
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part_1();
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part_2();
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}

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