LeetCode111 MinmumDepthofBinaryTree java 题解

题目:

Given a binary tree, find its minimum depth.

The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node.

解题:

求根节点到最近的叶子节点之间的距离

用遍历的方法,求出根节点到所有叶子节点距离中最小的。

代码:

public static int minDepth(TreeNode root) {
		if(root==null)
			return 0;
		else {

		<span style="white-space:pre">	</span>return 1+Math.min(minDepth(root.left), minDepth(root.right));

		}

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时间: 2024-10-23 01:09:11

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