Modify the problem of preorder_traversal_iii

2025-11-02 21:24:53 +08:00 · 2023-07-19 16:37:12 +08:00
parent 4e13755023
commit c54536d1a1
10 changed files with 15 additions and 3 deletions
--- a/codes/rust/chapter_backtracking/preorder_traversal_iii_compact.rs
+++ b/codes/rust/chapter_backtracking/preorder_traversal_iii_compact.rs
@ -21,6 +21,7 @@ fn pre_order(res: &mut Vec<Vec<Rc<RefCell<TreeNode>>>>, path: &mut Vec<Rc<RefCel
        if node.borrow().val == 7 {
            // 记录解
            res.push(path.clone());
+            return;
        }
        pre_order(res, path, node.borrow().left.clone());
        pre_order(res, path, node.borrow().right.clone());