111. Minimum Depth of Binary Tree#1(Done)
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Solution
/** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */public class Solution { public int minDepth(TreeNode root) { if (root == null) { return 0; } return getMin(root); } public int getMin(TreeNode root) { if (root == null) { return Integer.MAX_VALUE; } if (root.left == null && root.right == null) { return 1; } return Math.min(getMin(root.left), getMin(root.right)) + 1; }}Problem#1
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