day 3 part 2

2024/day3/part2/Cargo.lock

@@ -0,0 +1,54 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "day3"
+version = "0.1.0"
+dependencies = [
+ "regex",
+]
+
+[[package]]
+name = "memchr"
+version = "2.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+
+[[package]]
+name = "regex"
+version = "1.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"

2024/day3/part2/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "day3"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+regex = "1.11.1"

2024/day3/part2/src/main.rs

@@ -7,12 +7,11 @@ fn main() {
         .lines()
         .map(String::from)
         .collect();
-    let pattern1 = Regex::new(r"mul\((\d+,\d+)\)").unwrap();
-    let pattern2 = Regex::new(r"mul\((\d+)\,(\d+)\)").unwrap();
-
-    let mut finalvec1 = mul_parse(lines, pattern1);
-    let finalint = mul_process(finalvec1,pattern2);
-    println!("{:?}",finalint)
+    let pattern1 = Regex::new(r"(mul\((\d+)\,(\d+)\))|(do\(\))|(don\'t\(\))").unwrap();
+    let finalvec1 = mul_parse(lines, pattern1.clone());
+    let finalint = mul_process(finalvec1,pattern1.clone());
+    // println!("{:?}",finalint)
+    println!("{finalint}")
 }
 
 
@@ -28,18 +27,40 @@ fn mul_parse(thelines: Vec<String>, pattern: Regex) -> Vec<String>{
         }
 
     }
+    println!("mulvec is {:?}",mulvec);
     mulvec
 
 }
 
 fn mul_process(mulvec: Vec<String>, pattern: Regex) -> i64 {
+    let mut enabled = true;
     let mut mulint: i64 = 0;
+    let matchmul = Regex::new(r"mul\((\d+)\,(\d+)\)").unwrap();
+    let matchdo = Regex::new(r"do\(\)").unwrap();
+    let matchdont = Regex::new(r"don\'t\(\)").unwrap();
     for i in mulvec {
-        let captures = pattern.captures(&i).unwrap();
-        let capture1 = captures.get(1).unwrap().as_str().parse::<i32>().unwrap();
+        if let Some(t) = matchdo.find(&i) {
+            println!("matchdo");
+            enabled = true;
+        }
+        else if let Some(t) = matchdont.find(&i) {
+            println!("matchdont");
+            enabled = false;
+        }
+        else if let Some(t) = matchmul.find(&i) {
+            if enabled {
+                println!("matchmul");
+                let captures = pattern.captures(&i).unwrap();
+                let capture1 = captures.get(2).unwrap().as_str().parse::<i32>().unwrap();
+                let capture2 = captures.get(3).unwrap().as_str().parse::<i32>().unwrap();
+                mulint += (capture1 * capture2) as i64;
+            }
+        }
+
+
+
+
 
-        let capture2 = captures.get(2).unwrap().as_str().parse::<i32>().unwrap();
-        mulint += (capture1 * capture2) as i64;
     }