day19 part1

3 files changed, 502 insertions, 0 deletions

diff --git a/2024/day19.rs b/2024/day19.rs
new file mode 100644
index 0000000..5060dff
--- /dev/null
+++ b/2024/day19.rs
@@ -0,0 +1,90 @@
+#![allow(dead_code)]
+#![allow(unused_variables)]
+#![allow(unused_mut)]
+use std::collections::HashSet;
+use std::env;
+use std::fs::File;
+use std::io::Read;
+
+fn dfs(design: &str, tokens: &Vec<&str>) -> i64 {
+    if design.len() == 0 {
+        return 1;
+    }
+
+    for t in tokens {
+        if design.starts_with(t) {
+            let ret = dfs(&design[t.len()..], tokens);
+            if ret == 1 {
+                return 1;
+            }
+        }
+    }
+    return 0;
+}
+
+//fn bfs(design: &str, tokens: &Vec<&str>) -> i64 {
+//    let mut hs_new: HashSet<(i64, &str)> = HashSet::new();
+//    hs_new.insert((1,design));
+//
+//    let mut ret = 0;
+//    loop {
+//        let mut hs = hs_new.clone();
+//        hs_new.clear();
+//
+//        for (n,d) in hs.clone() {
+//            for t in tokens {
+//                if &d == t {
+//                    ret += 1;
+//                } else if d.starts_with(t) {
+//                    hs_new.insert((n+1,&d[t.len()..]));
+//                }
+//            }
+//        }
+//
+//        println!("{:?}", hs);
+//        if hs_new.len() == 0 {
+//            return ret;
+//        }
+//    }
+//}
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    let filename = if args.len() == 1 {
+        "in/".to_owned() + args[0].split('/').last().unwrap() + ".pzl"
+    } else {
+        args[1].clone()
+    };
+    let mut f = File::open(filename).expect("cannot open file");
+    let mut content = String::new();
+    f.read_to_string(&mut content).expect("cannot read file");
+    let (para1, para2) = content.trim_end().split_once("\n\n").unwrap();
+
+    let mut tokens: Vec<&str> = Vec::new();
+    for s in para1.split(", ") {
+        tokens.push(s);
+    }
+
+    let mut designs: Vec<&str> = Vec::new();
+    for s in para2.split("\n") {
+        designs.push(s);
+    }
+    //println!("{:?}", tokens);
+    //println!("{:?}", designs);
+
+    let mut res1 = 0;
+    let mut res2 = 0;
+    for d in designs {
+        res1 += dfs(d, &tokens);
+        //println!("{}", d);
+        //let ret = bfs(d, &tokens);
+        //res2 += ret;
+        //println!("{}", ret);
+    }
+
+
+    println!("res1: {}", res1);
+    println!("res2: {}", res2);
+    //assert_eq!(res1, 240);
+    //assert_eq!(res2, );
+}
diff --git a/2024/in/day19.pzl b/2024/in/day19.pzl
new file mode 100644
index 0000000..22db286
--- /dev/null
+++ b/2024/in/day19.pzl
@@ -0,0 +1,402 @@
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diff --git a/2024/in/day19.ref b/2024/in/day19.ref
new file mode 100644
index 0000000..29648be
--- /dev/null
+++ b/2024/in/day19.ref
@@ -0,0 +1,10 @@
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