day 1 part 2 + gitignore

.gitignore

@@ -0,0 +1,5 @@
+debug/
+target/
+Cargo.lock
+
+**/*.rs.bk

aoc1/src/main.rs

@@ -18,5 +18,11 @@ fn main() {
         }
     }
     list.sort();
-    println!("{}",list[list.len() - 1]);
+    let length = list.len();
+    println!("part1:");
+    println!("{}",list[length - 1]);
+    let top3 = list[length - 1] + list[length - 2] + list[length - 3];
+    println!("");
+    println!("part2:");
+    println!("{}",top3);
 }