day02

1 files changed, 69 insertions, 0 deletions

diff --git a/2023/day02.rs b/2023/day02.rs
new file mode 100644
index 0000000..3377acd
--- /dev/null
+++ b/2023/day02.rs
@@ -0,0 +1,69 @@
+#![allow(dead_code)]
+#![allow(unused_variables)]
+#![allow(unused_mut)]
+use std::fs::File;
+use std::io::Read;
+use std::cmp::max;
+
+fn main() {
+    // let filename = "in/day02.ref";
+    let filename = "in/day02.pzl";
+
+    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 lines: Vec<_> = content.trim_end().split('\n').collect();
+    // println!("{:?}", lines);
+
+
+    let mut res1 = 0;
+    let mut res2 = 0;
+
+    for line in &lines {
+        let mut game: Vec<(u32,u32,u32)> = Vec::new();
+
+        let s = line.split(":").collect::<Vec<&str>>();
+        let game = s[0];
+        let subgame = s[1];
+
+        let game_n: u32 = game.split(" ").collect::<Vec<&str>>()[1].parse().unwrap();
+
+        let mut all = 1;
+        let mut min_r = 0;
+        let mut min_g = 0;
+        let mut min_b = 0;
+        let subgames_v = subgame.split(";");
+        for sg in subgames_v {
+            let mut r = 0;
+            let mut g = 0;
+            let mut b = 0;
+            for color in sg.split(",") {
+                let pair = color.trim().split(" ").collect::<Vec<&str>>();
+                let num: u32 = pair[0].parse().unwrap();
+                match pair[1] {
+                    "red" => r += num,
+                    "green" => g += num,
+                    "blue" => b += num,
+                    _ => (),
+                }
+            }
+            if (r > 12) || (g > 13) || (b > 14) {
+                all = 0;
+            }
+            min_r = max(min_r, r);
+            min_g = max(min_g, g);
+            min_b = max(min_b, b);
+        }
+
+        let power = min_r * min_g * min_b;
+        res2 += power;
+
+        if all == 1 {
+            res1 += game_n;
+        }
+
+    }
+
+    println!("res1: {}", res1);
+    println!("res2: {}", res2);
+}