1 files changed, 29 insertions, 0 deletions

diff --git a/2022/03/b.rs b/2022/03/b.rs
new file mode 100644
index 0000000..89da764
--- /dev/null
+++ b/2022/03/b.rs
@@ -0,0 +1,29 @@
+mod common;
+use common::*;
+
+fn get_rep_val(e: &[String; 3]) -> i64 {
+    let mut seen = [[false; 256]; 2];
+    for i in 0..2 {
+        for c in e[i].chars() {
+            seen[i][c as usize] = true;
+        }
+    }
+    for c in e[2].chars() {
+        if seen[0][c as usize] && seen[1][c as usize] {
+            return value(c);
+        }
+    }
+    panic!("Could not find repeated char");
+}
+
+fn main() {
+    let mut sum = 0;
+    let mut lines: [String; 3] = Default::default();
+    while std::io::stdin().read_line(&mut lines[0]).unwrap() > 0 {
+        let _ = std::io::stdin().read_line(&mut lines[1]);
+        let _ = std::io::stdin().read_line(&mut lines[2]);
+        sum += get_rep_val(&lines);
+        for l in &mut lines { l.clear(); }
+    }
+    println!("{sum}");
+}