y2024d17p2 test works

y2024/src/days/d17.rs

@@ -63,17 +63,22 @@ pub fn process_part2(input: &str) -> u32 {
         .collect_vec()
         .concat();
     let mut a = 0;
+    for idx in 1..=orig.len() {
+        let target = orig[orig.len() - idx..].to_vec();
+
+        let mut new_a = a << 3;
         loop {
-        registers.insert("A", a);
+            registers.insert("A", new_a);
             let out = exec_program(instructions.clone(), &mut registers);
-        if out == orig {
+            println!("target {target:?}");
-            println!("{orig:?}");
+            println!("output {out:?}");
-            println!("{out:?}");
+            if out == target {
+                a = new_a;
                 break;
             }
-        a += 1;
+            new_a += 1;
+        }
     }
-
     a
 }