Update the codes of backtracking.

2026-07-24 12:06:07 +00:00 · 2023-04-27 02:17:04 +08:00
parent 9c070a028f
commit bc77a81330
12 changed files with 13 additions and 2 deletions
@@ -49,8 +49,8 @@ public class preorder_traversal_iii_template {
            if (isValid(state, choice)) {
                // 尝试：做出选择，更新状态
                makeChoice(state, choice);
-                List<TreeNode> nextChoices = new List<TreeNode>() { choice.left, choice.right };
-                backtrack(state, nextChoices, res);
+                // 进行下一轮选择
+                backtrack(state, new List<TreeNode> { choice.left, choice.right }, res);
                // 回退：撤销选择，恢复到之前的状态
                undoChoice(state, choice);
            }