Package g0101_0200.s0111_minimum_depth_of_binary_tree

Class Solution

java.lang.Object

g0101_0200.s0111_minimum_depth_of_binary_tree.Solution

public class Solution
extends Object

111 - Minimum Depth of Binary Tree.<p>Easy</p> <p>Given a binary tree, find its minimum depth.</p> <p>The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node.</p> <p><strong>Note:</strong> A leaf is a node with no children.</p> <p><strong>Example 1:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2020/10/12/ex_depth.jpg" alt="" /></p> <p><strong>Input:</strong> root = [3,9,20,null,null,15,7]</p> <p><strong>Output:</strong> 2</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> root = [2,null,3,null,4,null,5,null,6]</p> <p><strong>Output:</strong> 5</p> <p><strong>Constraints:</strong></p> <ul> <li>The number of nodes in the tree is in the range <code>[0, 10⁵]</code>.</li> <li><code>-1000 <= Node.val <= 1000</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	minDepth(TreeNode root)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

minDepth

public int minDepth(TreeNode root)