1 files changed, 34 insertions, 0 deletions
diff --git a/2023/rs/code/four/src/bin/maddie.rs b/2023/rs/code/four/src/bin/maddie.rs
new file mode 100644
index 0000000..dc630a3
--- /dev/null
+++ b/2023/rs/code/four/src/bin/maddie.rs
@@ -0,0 +1,34 @@
+use std::fs;
+
+fn main() {
+    let puzzle_input: String = fs::read_to_string("src/input.txt").expect("Failed to read file");
+    let mut total_points = 0;
+    let mut total_cards = 0;
+    let mut card_counts: Vec<i32> = vec![1;209];
+
+    for (i,line) in puzzle_input.lines().enumerate() {
+        let mut trim = line.split(":");
+        trim.next();
+        let mut nums = trim.next().unwrap().split("|");
+        let winning_nums = nums.next().unwrap().split(" ");
+        let player_nums = nums.next().unwrap().split(" ");
+        let mut winning_num_count = 0;
+
+        for num in player_nums {
+            for winning_num in winning_nums.clone() {
+                if num == winning_num && num != "" {
+                    winning_num_count += 1;
+                }
+            }
+        }
+        if winning_num_count != 0 {
+            total_points += 1 << (winning_num_count-1);
+        }
+        for j in (i+1)..(i+winning_num_count+1) {
+            card_counts[j] += card_counts[i];
+        }
+        total_cards += card_counts[i];
+    }
+    println!("total points: {total_points}");
+    println!("total cards: {total_cards}");
+}