fix build_tree, binary_search_tree.cs

fix two figures
2026-07-10 06:26:08 +00:00 · 2023-09-15 02:08:09 +08:00
parent af2aeb0897
commit cb9c14f5ff
13 changed files with 69 additions and 72 deletions
@@ -91,7 +91,7 @@ class BinarySearchTree {
                cur = cur.left;
        }
        // 若无待删除节点，则直接返回
-        if (cur == null || pre == null)
+        if (cur == null)
            return;
        // 子节点数量 = 0 or 1
        if (cur.left == null || cur.right == null) {