Update the page tree

2026-04-04 03:00:06 +08:00 · 2023-04-16 16:38:04 +08:00
parent f5b8978330
commit 0ade8d87ad
2 changed files with 3 additions and 2 deletions
--- a/codes/cpp/chapter_backtracking/preorder_find_constrained_paths.cpp
+++ b/codes/cpp/chapter_backtracking/preorder_find_constrained_paths.cpp
@@ -11,6 +11,7 @@ vector<vector<TreeNode *>> res;

 /* 前序遍历 */
 static void preOrder(TreeNode *root) {
+    // 剪枝
    if (root == nullptr || root->val == 3) {
        return;
    }