Minimum Depth of Binary Tree LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [๐Ÿ’ฏCorrect]

LeetCode Problem | LeetCode Problems For Beginners | LeetCode Problems & Solutions | Improve Problem Solving Skills | LeetCode Problems Java | LeetCode Solutions in C++

Hello Programmers/Coders, Today we are going to share solutions to the Programming problems of LeetCode Solutions in C++, Java, & Python. At Each Problem with Successful submission with all Test Cases Passed, you will get a score or marks and LeetCode Coins. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for the Minimum Depth of Binary Tree in C++, Java & Python-LeetCode problem. We are providing the correct and tested solutions to coding problems present on LeetCode. If you are not able to solve any problem, then you can take help from our Blog/website.

Use โ€œCtrl+Fโ€ To Find Any Questions Answer. & For Mobile User, You Just Need To Click On Three dots In Your Browser & You Will Get A โ€œFindโ€ Option There. Use These Option to Get Any Random Questions Answer.

About LeetCode

LeetCode is one of the most well-known online judge platforms to help you enhance your skills, expand your knowledge and prepare for technical interviews. 

LeetCode is for software engineers who are looking to practice technical questions and advance their skills. Mastering the questions in each level on LeetCode is a good way to prepare for technical interviews and keep your skills sharp. They also have a repository of solutions with the reasoning behind each step.

LeetCode has over 1,900 questions for you to practice, covering many different programming concepts. Every coding problem has a classification of either EasyMedium, or Hard.

LeetCode problems focus on algorithms and data structures. Here is some topic you can find problems on LeetCode:

  • Mathematics/Basic Logical Based Questions
  • Arrays
  • Strings
  • Hash Table
  • Dynamic Programming
  • Stack & Queue
  • Trees & Graphs
  • Greedy Algorithms
  • Breadth-First Search
  • Depth-First Search
  • Sorting & Searching
  • BST (Binary Search Tree)
  • Database
  • Linked List
  • Recursion, etc.

Leetcode has a huge number of test cases and questions from interviews too like Google, Amazon, Microsoft, Facebook, Adobe, Oracle, Linkedin, Goldman Sachs, etc. LeetCode helps you in getting a job in Top MNCs. To crack FAANG Companies, LeetCode problems can help you in building your logic.

Link for the ProblemMinimum Depth of Binary Treeโ€“ LeetCode Problem

Minimum Depth of Binary Treeโ€“ LeetCode Problem


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.

Example 1:

Input: root = [3,9,20,null,null,15,7]
Output: 2

Example 2:

Input: root = [2,null,3,null,4,null,5,null,6]
Output: 5


  • The number of nodes in the tree is in the range [0, 105].
  • -1000 <= Node.val <= 1000
Minimum Depth of Binary Treeโ€“ LeetCode Solutions
Minimum Depth of Binary Tree Solution in C++:
class Solution {
  int minDepth(TreeNode* root) {
    if (!root)
      return 0;

    int ans = 0;
    queue<TreeNode*> q{{root}};

    while (!q.empty()) {
      for (int size = q.size(); size > 0; --size) {
        TreeNode* node = q.front();
        if (!node->left && !node->right)
          return ans;
        if (node->left)
        if (node->right)

Minimum Depth of Binary Tree Solution in Java:
class Solution {
  public int minDepth(TreeNode root) {
    if (root == null)
      return 0;
    if (root.left == null)
      return minDepth(root.right) + 1;
    if (root.right == null)
      return minDepth(root.left) + 1;
    return Math.min(minDepth(root.left), minDepth(root.right)) + 1;
Minimum Depth of Binary Tree Solution in Python:
class Solution:
  def minDepth(self, root: Optional[TreeNode]) -> int:
    if not root:
      return 0
    if not root.left:
      return self.minDepth(root.right) + 1
    if not root.right:
      return self.minDepth(root.left) + 1
    return min(self.minDepth(root.left), self.minDepth(root.right)) + 1

382 thoughts on “Minimum Depth of Binary Tree LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [๐Ÿ’ฏCorrect]”

  1. I may need your help. I’ve been doing research on gate io recently, and I’ve tried a lot of different things. Later, I read your article, and I think your way of writing has given me some innovative ideas, thank you very much.

  2. Scrap metal sustainability practices Secondary aluminium Aluminium scrap transportation
    Scrap metal logistics solutions, Where to sell aluminum cable scrapAluminum cable prices, Scrap metal reprocessing plant

    Fang Jifan์€ ๊ทธ๋ฅผ ๋ง‰์•˜์Šต๋‹ˆ๋‹ค. “์ „ํ•˜๊ฐ€ ์—ฌ๊ธฐ ์žˆ์Šต๋‹ˆ๋‹ค. ์‹์‚ฌ๋ฅผํ•˜๊ณ  ๋– ๋‚˜์ง€ ์•Š๊ฒ ์Šต๋‹ˆ๊นŒ?”

    ๊ทธ๊ฐ€ ์ž…์„ ์—ด์ž๋งˆ์ž ๋ˆ„๊ตฐ๊ฐ€๊ฐ€ ๊ธ‰ํžˆ ๋‹ค๊ฐ€์™”๋‹ค. “์ „ํ•˜, ํ™ฉ์ œ์˜ ์†์ž๊ฐ€ ์ „ํ•˜๋ฅผ ๋งŒ๋‚˜๋Ÿฌ ์™”์Šต๋‹ˆ๋‹ค.”

    ์ด ์ˆœ๊ฐ„ ๊ทธ๋“ค์€… ๊ทธ๋“ค์ด ์ ์„ ๊ฒฝ์†”ํ•˜๊ฒŒ ๊ณผ์†Œํ‰๊ฐ€ํ–ˆ๋‹ค๋Š” ๊ฒƒ์„ ๊นจ๋‹ฌ์•˜์Šต๋‹ˆ๋‹ค.

    ์ด๊ณณ์—๋Š” ์‚ฌ๋ฐฉ์— ๊ฒฝ๋น„์›์ด ์žˆ๊ณ  ๋ฐค์—๋Š” ์ฃฝ์€ ๋„์‹œ์ฒ˜๋Ÿผ ๋ถˆ์ด ๋ชจ๋‘ ๊บผ์ง‘๋‹ˆ๋‹ค.

    ๊ทธ๋Š” ํ™”ํ•ดํ•˜์ง€ ์•Š์•˜๊ณ  ๋ฉฐ์น  ๊ณ ๋ฏผ ๋์— ๋งˆ์นจ๋‚ด ๋“œ๋ž˜ํ”„ํŠธ๋ฅผ ๋งˆ์ณค๋‹ค.

  8. ZenCortex Research’s contains only the natural ingredients that are effective in supporting incredible hearing naturally.A unique team of health and industry professionals dedicated to unlocking the secrets of happier living through a healthier body.

  9. Find the latest technology news and expert tech product reviews. Learn about the latest gadgets and consumer tech products for entertainment, gaming, lifestyle and more.

  10. KeraBiotics is a meticulously-crafted natural formula designed to help people dealing with nail fungus. This solution, inspired by a sacred Amazonian barefoot tribe ritual, reintroduces good bacteria that help you maintain the health of your feet while rebuilding your toenails microbiome. This will create a protective shield for your skin and nails.

  11. ExtenZeโ„ข is a popular male enhancement pill that claims to increase a maleโ€™s sexual performance by improving erection size and increasing vigor. It enhances blood circulation, increases testosterone production, and enhances stamina.

  12. Illuderma is a serum designed to deeply nourish, clear, and hydrate the skin. The goal of this solution began with dark spots, which were previously thought to be a natural symptom of ageing. The creators of Illuderma were certain that blue modern radiation is the source of dark spots after conducting extensive research.

    Fang Jifan์€ “๋‚˜์ค‘์— ์ „ํ•˜๊ฐ€ ๋จผ์ € ์‚ฌ๊ณผํ•˜๋Ÿฌ ๊ฐˆ ๊ฒƒ์ž…๋‹ˆ๋‹ค. “๋ผ๊ณ  ํŽธ๋ฆฌํ•˜๊ฒŒ ๋งํ–ˆ์Šต๋‹ˆ๋‹ค.

    Hongz ํ™ฉ์ œ๋Š” ๊ฐ‘์ž๊ธฐ ๋ฌด์–ธ๊ฐ€๋ฅผ ๊ธฐ์–ตํ•˜๊ณ  ๋‹ค์‹œ ๋งํ–ˆ์Šต๋‹ˆ๋‹ค. “์ด ๋ฌธ์ œ๋ฅผ ์–ธ๊ธ‰ ํ•œ ์ด์œ ๋Š” ๋ฌด์—‡์ž…๋‹ˆ๊นŒ?”Hongzhi ํ™ฉ์ œ๋Š” ์•ฝ๊ฐ„ ๋‹นํ™ฉํ–ˆ๊ณ  ๋‘ ์ž๋…€ ์ค‘ ๋ˆ„๊ฐ€ ์˜ณ์€์ง€ ๋ชฐ๋ž์Šต๋‹ˆ๋‹ค.

  15. Gut Vitaโ„ข is a daily supplement that helps consumers to improve the balance in their gut microbiome, which supports the health of their immune system. It supports healthy digestion, even for consumers who have maintained an unhealthy diet for a long time.

  16. Unlock the incredible potential of Puravive! Supercharge your metabolism and incinerate calories like never before with our unique fusion of 8 exotic components. Bid farewell to those stubborn pounds and welcome a reinvigorated metabolism and boundless vitality. Grab your bottle today and seize this golden opportunity!

  17. Cerebrozen is an excellent liquid ear health supplement purported to relieve tinnitus and improve mental sharpness, among other benefits. The Cerebrozen supplement is made from a combination of natural ingredients, and customers say they have seen results in their hearing, focus, and memory after taking one or two droppers of the liquid solution daily for a week.

  18. Keravita Proโ„ข is a dietary supplement created by Benjamin Jones that effectively addresses nail fungus and hair loss, promoting the growth of healthier and thicker nails and hair. The formula is designed to target the underlying causes of these health issues and provide comprehensive treatment.


Leave a Comment

Ads Blocker Image Powered by Code Help Pro

Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker๐Ÿ™.