# Leetcode-Minimum Depth of Binary Tree

Source: Internet
Author: User

Leetcode-Minimum Depth of Binary Tree
Minimum Depth of Binary Tree Total Accepted: 32062 Total Submissions: 110013My SubmissionsQuestionSolution

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.

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`/** * Definition for binary tree * struct TreeNode { *     int val; *     TreeNode *left; *     TreeNode *right; *     TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */class Solution {public:    int minDepth(TreeNode *root) {        if(root==NULL)            return 0;                int l=minDepth(root->left);        int r=minDepth(root->right);                if(l==0&&r==0)            return 1;        if(l==0||r==0)            return l>r?l+1:r+1;        if(l!=0&&r!=0)            return l>r?r+1:l+1;    }};`

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