sort

src/main.rs

@@ -148,7 +148,8 @@ fn nodes_at_vec(map: HashMap<char, i32>) -> Vec<Node> {
         node.set_counter(*value);
         nodes.push(node);
     }
-    nodes.sort_by(|a, b| a.val.cmp(&b.val));
+    nodes.sort();
+    //nodes.sort_by(|a, b| a.val.cmp(&b.val));
     nodes
 }
 

src/node.rs

@@ -1,4 +1,3 @@
-use std::collections::BTreeSet;
 use std::collections::HashMap;
 use std::collections::VecDeque;