have started on day 2, might need some help with ranges?

aoc-2/Cargo.lock

@@ -0,0 +1,54 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
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+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "aoc-2"
+version = "0.1.0"
+dependencies = [
+ "regex",
+]
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+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
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+[[package]]
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+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
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aoc-2/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "aoc-2"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+regex = "1.12.2"

aoc-2/src/example.txt

@@ -0,0 +1 @@
+11-22,95-115,998-1012,1188511880-1188511890,222220-222224,1698522-1698528,446443-446449,38593856-38593862,565653-565659,824824821-824824827,2121212118-2121212124

aoc-2/src/input.txt

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+5959566378-5959623425,946263-1041590,7777713106-7777870316,35289387-35394603,400-605,9398763-9592164,74280544-74442206,85684682-85865536,90493-179243,202820-342465,872920-935940,76905692-76973065,822774704-822842541,642605-677786,3759067960-3759239836,1284-3164,755464-833196,52-128,3-14,30481-55388,844722790-844967944,83826709-83860070,9595933151-9595993435,4216-9667,529939-579900,1077949-1151438,394508-486310,794-1154,10159-17642,5471119-5683923,16-36,17797-29079,187-382

aoc-2/src/main.rs

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+// within certain rnages, find numbers with a pattern repeated exactly twice
+// eg "55" ("5" twice), "6464" ("64" twice), "123123"
+// cannot be matches on numebrs with an odd number of digits
+// compare the first half of the didgits to the second half
+// save all the matches (invalid id's) to a list and add them up to produce the solution
+// each rnage can have 0 or more invalid id's
+// need to parse each range (probably regex), get start and end value for each 
+
+use std::fs;
+use regex::Regex;
+
+fn main() {
+    println!("Lets begin, day 2, part 1");
+    let file_path = "src/input.txt";
+    // let file_path = "src/example.txt";
+
+    // split up input by "," and "-"
+    // (?<start_range>\d*)-(?<end_range>\d*)
+    let re = Regex::new(r"(?<start_range>\d*)-(?<end_range>\d*)").unwrap();
+    let line = fs::read_to_string(file_path).unwrap();
+    println!("{line}");
+
+    // let mut results = vec![];
+
+    // parse the provided ranges into paits
+    let ranges: Vec<(i32, i32)> = re.captures_iter(&line).map(|caps| {
+        let start: i32 = caps.name("start_range").unwrap().as_str().parse::<i32>().unwrap();
+        let end: i32 = caps.name("end_range").unwrap().as_str().parse::<i32>().unwrap();
+        (start, end)
+    }).collect();
+
+    println!("{ranges:?}");
+
+
+}