a few days

d17/src/a2.rs

@@ -143,6 +143,9 @@ pub fn run(inp :Vec<String>) {
         
 
         let mut highest_point = find_highest(&positions); 
+
+        // check if the top row is completely filled 
+        // if so we know that we can reset the board
         let mut can_be_reset = true; 
         for i in 0..WIDTH {
             if !positions.contains(&Pos(i, highest_point)) {

d17/src/main.rs

@@ -32,7 +32,7 @@ fn read_file(path :&str) -> Vec<String> {
 
 fn main() {
     
-    let inp :Vec<String> = read_file("input.txt"); 
+    let inp :Vec<String> = read_file("test_input.txt"); 
 
     a1::run(inp.clone());