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Anders Olsson
2023-02-05 19:49:01 +01:00
parent 5e1a0811f6
commit 4c8e401a9c
5 changed files with 242 additions and 1 deletions
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95
2018/07/Cargo.lock generated Normal file
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name = "aho-corasick"
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"libc 0.2.45 (registry+https://github.com/rust-lang/crates.io-index)",
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1
2018/07/Cargo.toml
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@@ -5,3 +5,4 @@ authors = ["Anders Olsson <anders.e.olsson@gmail.com>"]
edition = "2018"
[dependencies]
regex = "1.1"

7
2018/07/example-01.txt Normal file
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@@ -0,0 +1,7 @@
Step C must be finished before step A can begin.
Step C must be finished before step F can begin.
Step A must be finished before step B can begin.
Step A must be finished before step D can begin.
Step B must be finished before step E can begin.
Step D must be finished before step E can begin.
Step F must be finished before step E can begin.

101
2018/07/input.txt Normal file
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@@ -0,0 +1,101 @@
Step D must be finished before step T can begin.
Step T must be finished before step K can begin.
Step O must be finished before step S can begin.
Step Y must be finished before step G can begin.
Step F must be finished before step Q can begin.
Step Q must be finished before step C can begin.
Step R must be finished before step X can begin.
Step E must be finished before step X can begin.
Step V must be finished before step U can begin.
Step U must be finished before step H can begin.
Step X must be finished before step S can begin.
Step L must be finished before step C can begin.
Step P must be finished before step B can begin.
Step A must be finished before step N can begin.
Step K must be finished before step W can begin.
Step H must be finished before step Z can begin.
Step W must be finished before step C can begin.
Step M must be finished before step J can begin.
Step S must be finished before step J can begin.
Step G must be finished before step I can begin.
Step Z must be finished before step I can begin.
Step C must be finished before step N can begin.
Step B must be finished before step J can begin.
Step J must be finished before step N can begin.
Step I must be finished before step N can begin.
Step O must be finished before step L can begin.
Step Z must be finished before step B can begin.
Step F must be finished before step Z can begin.
Step J must be finished before step I can begin.
Step Y must be finished before step R can begin.
Step Q must be finished before step N can begin.
Step U must be finished before step M can begin.
Step V must be finished before step C can begin.
Step W must be finished before step B can begin.
Step T must be finished before step E can begin.
Step Q must be finished before step W can begin.
Step A must be finished before step J can begin.
Step G must be finished before step Z can begin.
Step V must be finished before step B can begin.
Step E must be finished before step B can begin.
Step R must be finished before step J can begin.
Step W must be finished before step J can begin.
Step H must be finished before step N can begin.
Step G must be finished before step B can begin.
Step U must be finished before step X can begin.
Step Y must be finished before step M can begin.
Step B must be finished before step I can begin.
Step V must be finished before step I can begin.
Step S must be finished before step C can begin.
Step F must be finished before step K can begin.
Step X must be finished before step G can begin.
Step M must be finished before step C can begin.
Step U must be finished before step J can begin.
Step X must be finished before step H can begin.
Step L must be finished before step A can begin.
Step A must be finished before step K can begin.
Step V must be finished before step G can begin.
Step E must be finished before step U can begin.
Step P must be finished before step I can begin.
Step P must be finished before step G can begin.
Step A must be finished before step I can begin.
Step Y must be finished before step J can begin.
Step X must be finished before step K can begin.
Step B must be finished before step N can begin.
Step A must be finished before step M can begin.
Step E must be finished before step K can begin.
Step S must be finished before step N can begin.
Step Q must be finished before step A can begin.
Step L must be finished before step W can begin.
Step F must be finished before step A can begin.
Step K must be finished before step I can begin.
Step M must be finished before step N can begin.
Step O must be finished before step P can begin.
Step L must be finished before step J can begin.
Step Z must be finished before step N can begin.
Step Q must be finished before step U can begin.
Step V must be finished before step W can begin.
Step F must be finished before step P can begin.
Step F must be finished before step M can begin.
Step E must be finished before step Z can begin.
Step T must be finished before step L can begin.
Step F must be finished before step C can begin.
Step M must be finished before step G can begin.
Step Y must be finished before step S can begin.
Step C must be finished before step J can begin.
Step U must be finished before step I can begin.
Step Y must be finished before step W can begin.
Step Z must be finished before step C can begin.
Step Y must be finished before step N can begin.
Step Q must be finished before step P can begin.
Step P must be finished before step K can begin.
Step O must be finished before step M can begin.
Step W must be finished before step S can begin.
Step M must be finished before step B can begin.
Step X must be finished before step C can begin.
Step D must be finished before step C can begin.
Step H must be finished before step J can begin.
Step S must be finished before step G can begin.
Step C must be finished before step I can begin.
Step Y must be finished before step V can begin.
Step F must be finished before step I can begin.

39
2018/07/src/main.rs
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@@ -1,3 +1,40 @@
use std::collections::HashMap;
use std::io::{self, BufRead};
use regex::Regex;
fn main() {
println!("Hello, world!");
let re = Regex::new(r"Step ([A-Z]) must be finished before step ([A-Z]) can begin.")
.expect("failed to build regex");
let mut entries = io::stdin()
.lock()
.lines()
.filter_map(Result::ok)
.map(|line| {
let caps = re
.captures(&line)
.expect("failed to capture date");
let dependency = caps
.get(1)
.unwrap()
.as_str()
.chars()
.next()
.unwrap();
let step = caps
.get(2)
.unwrap()
.as_str()
.chars()
.next()
.unwrap();
(dependency, step)
})
.collect::<Vec<_>>();
println!("{:#?}", entries);
}