当我运行此leetcode问题时,我使用了以下代码:
class Solution {
public TreeNode sortedArrayToBST(int[] nums) {
TreeNode root = sortedBST(nums, 0, nums.length-1);
return root;
}
public TreeNode sortedBST(int[]nums, int low, int high){
if(low > high) return null;
int temp = (low + high) / 2;
TreeNode node = new TreeNode(nums[temp]);
node.left = sortedBST(nums, 0, temp - 1);
node.right = sortedBST(nums, temp + 1, high);
return node;
}
}
而不是正确的输出
对于已排序的数组[0,-3,9,-10,null,5]
,[-10,-3,0,5,9]
,
我的输出结果是[0,-10,5,null,-3,-3,9,-10,null,-10,0,-3,null,null,null,null,null,-10,null,-10,0,null,-3,null,null,-10,5,-10,null,null,-3,-3,null,null,null,-10,null,-10,0,null,null,null,null,-10,null,null,-3,-10]
。
我对这个结果感到困惑,为什么它有这么多的输出?
答案 0 :(得分:1)
更改行
node.left = sortedBST(nums, low, temp - 1);
到
Mtable