Fix the codes of backtracking.

2 years ago · 1600ed6dee
parent 3d4fb3dbd7
commit 1600ed6dee
3 changed files with 0 additions and 5 deletions
--- a/codes/java/chapter_backtracking/preorder_find_nodes.java
+++ b/codes/java/chapter_backtracking/preorder_find_nodes.java
@ -15,15 +15,12 @@ public class preorder_find_nodes {
        if (root == null) {
            return;
        }
-        // 尝试
        if (root.val == 7) {
            // 记录解
            res.add(root);
        }
        preOrder(root.left);
        preOrder(root.right);
-        // 回退
-        return;
    }

    public static void main(String[] args) {
--- a/codes/python/chapter_backtracking/preorder_find_constrained_paths.py
+++ b/codes/python/chapter_backtracking/preorder_find_constrained_paths.py
@ -24,7 +24,6 @@ def pre_order(root: TreeNode) -> None:
    pre_order(root.right)
    # 回退
    path.pop()
-    return


 """Driver Code"""
--- a/codes/python/chapter_backtracking/preorder_find_paths.py
+++ b/codes/python/chapter_backtracking/preorder_find_paths.py
@ -23,7 +23,6 @@ def pre_order(root: TreeNode) -> None:
    pre_order(root.right)
    # 回退
    path.pop()
-    return


 """Driver Code"""