aoc_2

Cargo.toml

@@ -9,3 +9,7 @@ criterion = { version = "0.7", features = ["html_reports"] }
 [[bench]]
 name = "bench_aoc_1"
 harness = false
+
+[[bench]]
+name = "bench_aoc_2"
+harness = false

benches/bench_aoc_2.rs

@@ -0,0 +1,16 @@
+use aoc2025::aoc::aoc_2;
+use criterion::{Criterion, criterion_group, criterion_main};
+use std::hint::black_box;
+
+fn bench_aoc_2_part1(c: &mut Criterion) {
+    let input = black_box(include_str!("../src/aoc/input/full_input_aoc2.txt"));
+    c.bench_function("bench_aoc2 part 1", |b| b.iter(|| aoc_2::solve_p1(input)));
+}
+
+fn bench_aoc_2_part2(c: &mut Criterion) {
+    let input = black_box(include_str!("../src/aoc/input/full_input_aoc2.txt"));
+    c.bench_function("bench_aoc2 part 1", |b| b.iter(|| aoc_2::solve_p2(input)));
+}
+
+criterion_group!(benches_p2, bench_aoc_2_part1, bench_aoc_2_part2);
+criterion_main!(benches_p2);

src/aoc.rs

@@ -1 +1,2 @@
 pub mod aoc_1;
+pub mod aoc_2;

src/aoc/aoc_1.rs

@@ -1,4 +1,3 @@
-use std::hint::unreachable_unchecked;
 
 pub fn solve_1(input :&'static[u8]) -> u64 {
     let mut dial = 50;
@@ -39,7 +38,7 @@ pub fn solve_1_f(input :&'static[u8]) -> u32 {
     let mut dial = 50;
     let mut answer =0;
 
-    let mut index = 0;
+
     for line in input.split(|&b| b == b'\n') {
         let len = line.len();
 

src/aoc/aoc_2.rs

@@ -0,0 +1,39 @@
+use std::io::BufRead;
+
+pub fn solve_p1(input: &str ) -> u64 {
+    let mut answer = 0;
+    for line in input.split(',') {
+        let (num1, num2) = line.split_once('-').map(|n| {(n.0.parse::<u64>().unwrap(), n.1.parse::<u64>().unwrap())}).unwrap();
+        for i  in num1..=num2 {
+            let text = i.to_string();
+            if text.len()%2 == 0 {
+                let splits = text.split_at(text.len()/2);
+                if splits.0==splits.1 {
+                    answer +=i;
+                }
+            }
+        }
+    }
+
+
+    answer
+}
+
+pub fn solve_p2(input: &str ) -> u64 {
+    let mut answer = 0;
+    for line in input.split(',') {
+        let num_range = line.split('-').map(|num| { num.parse::<u64>().unwrap_or(0) }).collect::<Vec<u64>>();
+        for i in num_range[0]..=num_range[1] {
+            let text = i.to_string();
+            for j in 1..=text.len() / 2 {
+                if text.len() % j == 0 {
+                    if text[0..j].repeat(text.len() / j) == text {
+                        answer += i;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    answer
+}

src/aoc/input/test_input_aoc2.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

src/main.rs

@@ -1,10 +1,16 @@
+
+
 pub mod aoc;
 use crate::aoc::*;
 
 fn main() {
-    println!("answer: {}", aoc_1::solve_1_f( include_bytes!("aoc/input/full_input_aoc1.txt")));
-    println!("answer: {}", aoc_1::solve_2(include_bytes!("aoc/input/full_input_aoc1.txt")));
-    //println!("{:?}", include_bytes!("aoc/input/full_input_aoc1.txt"));
+    let input = include_str!("aoc/input/full_input_aoc2.txt");
+    let answer = aoc_2::solve_p1(input);
+    println!("{}", answer);
+
+    let input = include_bytes!("aoc/input/test_input_aoc2.txt");
+    //let answer = aoc_2::solve_p1_f(input);
+    println!("{:?}", input);
 }
 
 #[test]
@@ -18,3 +24,12 @@ fn test_aoc_1_2() {
     assert_eq!(aoc_1::solve_2f(include_bytes!("aoc/input/test_input_aoc1.txt")), 6);
     assert_eq!(aoc_1::solve_2f(include_bytes!("aoc/input/full_input_aoc1.txt")), 6770);
 }
+
+#[test]
+fn test_aoc_2_part1() {
+    assert_eq!(aoc_2::solve_p1(include_str!("aoc/input/test_input_aoc2.txt")), 1227775554);
+}
+#[test]
+fn test_aoc_2_part2() {
+    assert_eq!(aoc_2::solve_p2(include_str!("aoc/input/test_input_aoc2.txt")), 4174379265);
+}