In this post we will solve LeetCode 111. Minimum Depth of Binary Tree problem using Java and the VSCode IDE on a Windows computer. Not that it matters, but I am using Windows 11.

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. Note: A leaf is a node with no children. Constraints: o The number of nodes in the tree is in the range [0, 10^5]. o -1000 <= Node.val <= 1000 Related Topics: o Tree * Depth-First Search * Breadth-First Search o Binary Tree

We are given the root of a binary tree and are asked to find the **minimum **depth of the tree. A couple years ago we solved in this post Maximum Depth of a Binary Tree.

The definition of minimum depth is provided in the requirements for the problem at hand. Continue reading “LeetCode 111. Minimum Depth of Binary Tree in Java”