minimum depth of a binary tree leetcode

Why is an arrow pointing through a glass of water only flipped vertically but not horizontally? Minimum Insertion Steps to Make a String Palindrome, 1315. Max Sum of Rectangle No Larger Than K, 381. LeetCode helps you in getting a job in Top MNCs. The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node. Time Needed to Rearrange a Binary String, 2383. Minimum Cost to Separate Sentence Into Rows, 2056. Product of Two Run-Length Encoded Arrays, 1869. Minimum Number of Operations to Sort a Binary Tree by Level, 2472. Execute Asynchronous Functions in Parallel, 2730. Step-By-Step Directions From a Binary Tree Node to Another, 2098. Path Sum II.md","path":"solutions/113. Categorize Box According to Criteria, 2526. Find XOR Sum of All Pairs Bitwise AND, 1836. Longest ZigZag Path in a Binary Tree, 1374. Add Two Numbers 3. Split the Array to Make Coprime Products, 2586. Find the Subtasks That Did Not Execute, 1769. Construct Binary Tree from Preorder and Postorder Traversal, 893. Longest Substring with At Most Two Distinct Characters, 181. Last Substring in Lexicographical Order, 1168. A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Sum of Nodes with Even-Valued Grandparent, 1317. Maximum of Absolute Value Expression, 1135. Remove All Ones With Row and Column Flips, 2131. Minimum Operations to Make a Subsequence, 1714. Hence, we only need to call the recursive function when the node it is called upon is NOT null. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Maximize Number of Subsequences in a String, 2208. Given a binary tree, find its minimum depth. Please support us by disabling these ads blocker. Minimum Number of Operations to Convert Time, 2225. Binary Tree Longest Consecutive Sequence, 302. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":" Backspace String Compare.cpp","path":" Backspace String Compare.cpp","contentType":"file . Reduction Operations to Make the Array Elements Equal, 1888. Number of Valid Words in a Sentence, 2048. Maximum Number of Words Found in Sentences, 2115. Minimum Number of Vertices to Reach All Nodes, 1558. Leetcode Solutions Leetcode Solutions Introduction 1. Final Value of Variable After Performing Operations, 2014. Widest Pair of Indices With Equal Range Sum, 1984. LeetCode. Minimum Number of Moves to Make Palindrome, 2196. Maximum Sum With Exactly K Elements, 2657. Minimum Cost to Make at Least One Valid Path in a Grid, 1369. Were all of the "good" terminators played by Arnold Schwarzenegger completely separate machines? Given a binary tree, find its minimum depth. Longest Substring with At Most K Distinct Characters, 363. Remove Duplicates from Sorted Array II, 82. Pairs of Songs With Total Durations Divisible by 60, 1011. List the Products Ordered in a Period, 1330. Largest Color Value in a Directed Graph, 1864. This problem is structurally same as finding the height of a binary tree but in this case, we need to find the minimum height/depth between the root and any leaf in the tree. The Most Recent Orders for Each Product, 1551. Smallest Greater Multiple Made of Two Digits, 2001. Divide Array Into Increasing Sequences, 1123. Given the root of a binary tree, return its max depth where max depth is the number of nodes along the longest path from the root node down to the farthest leaf node. 6. Remove All Adjacent Duplicates In String, 1050. Design a Stack With Increment Operation, 1385. Maximum Number of Occurrences of a Substring, 1298. Minimum Depth of Binary Tree Solution in Java, 111. Count Unreachable Pairs of Nodes in an Undirected Graph, 2320. For your input: In test cases usually trees are represented as in-order traversal, so you can build up a tree from it using suitable traversal algorithm or you could build it manually: Your algorithm is correct, but I would refactor it a bit: Thanks for contributing an answer to Stack Overflow! Find the City With the Smallest Number of Neighbors at a Threshold Distance, 1335. Count Ways to Build Rooms in an Ant Colony, 1921. Partition Array Into Three Parts With Equal Sum, 1016. Maximum Product of the Length of Two Palindromic Substrings, 1961. The Journey of an Electromagnetic Wave Exiting a Router, My cancelled flight caused me to overstay my visa and now my visa application was rejected. Guess the Majority in a Hidden Array, 1541. Maximize Sum Of Array After K Negations, 1007. Count Artist Occurrences On Spotify Ranking List, 2672. Percentage of Users Attended a Contest, 1634. Fixed by #1605 Contributor juhikushwah commented Nov 18, 2020 Title - C++ code for 111. Earliest Possible Day of Full Bloom, 2137. 7. Airplane Seat Assignment Probability, 1228. LeetCode 111. The Number of Employees Which Report to Each Employee, 1735. Binary Tree Zigzag Level Order Traversal, 105. Minimum Fuel Cost to Report to the Capital, 2479. Vertical Order Traversal of a Binary Tree, 990. I am testing the leetcode 104 Maximum Depth of Binary Tree. Solution 1 /** * Definition for a binary . Number of Times a Driver Was a Passenger, 2240. A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. This problem 111. Example 1 : Input: root = [3,9,20,null,null,15,7] Output: 3 Example 2 : Input: root = [1,null,2] Output: 2 Constraints Execute Cancellable Function With Delay, 2721. Longest Substring of One Repeating Character, 2216. Check if Number Has Equal Digit Count and Digit Value, 2287. Find the Kth Smallest Sum of a Matrix With Sorted Rows, 1441. Logical OR of Two Binary Grids Represented as Quad-Trees, 562. Generate a String With Characters That Have Odd Counts, 1375. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Minimum Score Triangulation of Polygon, 1047. Length of the Longest Alphabetical Continuous Substring, 2419. Count the Number of Square-Free Subsets, 2575. Binary String With Substrings Representing 1 To N, 1026. Construct Binary Tree from Preorder and Inorder Traversal, 106. Create Sorted Array through Instructions, 1650. Number of Students Doing Homework at a Given Time, 1452. The minimum depth is the number of nodes along the shortest path from the root node down to the nearest leaf node. * Definition for a binary tree node. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. Minimum Skips to Arrive at Meeting On Time, 1886. Link for the Problem Minimum Depth of Binary Tree LeetCode Problem. Second Minimum Node In a Binary Tree, 673. EASY C++ CODE (HIGHLY UNDERSTANDABLE) baibhavsingh07. Note: A leaf is a node with no children. October 2020 Leetcode ChallengeLeetcode - Minimum Depth of Binary Tree # 111. Display Table of Food Orders in a Restaurant, 1420. We are providing the correct and tested solutions to coding problems present on LeetCode. Kth Smallest Number in Multiplication Table, 671. A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Find Total Time Spent by Each Employee, 1743. Use "Ctrl+F" To Find Any Questions Answer. You do not construct your tree in the right way. Disconnect Path in a Binary Matrix by at Most One Flip, 2557. Verify Preorder Serialization of a Binary Tree, 340. Longest Substring Without Repeating Characters, 17. In this Leetcode Minimum Depth of Binary Tree problem solution we have Given a binary tree, find its minimum depth. Insufficient Nodes in Root to Leaf Paths, 1081. Construct the Lexicographically Largest Valid Sequence, 1719. Binary Tree Level Order Traversal II 108. Make the XOR of All Segments Equal to Zero, 1789. Find Nearest Right Node in Binary Tree, 1604. Count Square Submatrices with All Ones, 1279. Count Nodes Equal to Average of Subtree, 2267. Get Biggest Three Rhombus Sums in a Grid, 1880. * int val; Least Number of Unique Integers after K Removals, 1482. Find the Longest Substring Containing Vowels in Even Counts, 1372. Construct Binary Tree from Inorder and Postorder Traversal, 107. Minimum Number of Arrows to Burst Balloons, 453. Number of People That Can Be Seen in a Grid, 2283. first you will add 3 to queue here what happens:- before first iteration queue = [3], queue.length = 1 and i = 0 depth should increase after first iteration but see what happens. Here, we will use the BFS algorithm, i.e., level order traversal to find the minimum depth of a binary tree. Merge Operations to Turn Array Into a Palindrome, 2423. Find Resultant Array After Removing Anagrams, 2274. Example 1: Input: root = [3,9,20,null,null,15,7] Output: 2 Example 2: The Time When the Network Becomes Idle, 2040. Valid Parentheses 2 LeetCode 7. Check if Number is a Sum of Powers of Three, 1784. Minimum Moves to Reach Target Score, 2141. Maximum Value of a String in an Array, 2499. Design Add and Search Words Data Structure, 235. Count Subarrays With Score Less Than K, 2307. Check if There is a Valid Partition For The Array, 2372. Number of Pairs Satisfying Inequality, 2431. Required fields are marked *. Two Furthest Houses With Different Colors, 2083. Convert Integer to the Sum of Two No-Zero Integers, 1318. The Number of Users That Are Eligible for Discount, 2207. Find the Prefix Common Array of Two Arrays, 2660. Number of Spaces Cleaning Robot Cleaned, 2064. Find Substring With Given Hash Value, 2158. The length of a path between two nodes is represented by the number of edges between them. First Day Where You Have Been in All the Rooms, 1999. Reverse Integer . At Each Problem with Successful submission with all Test Cases Passed, you will get a score or marks and LeetCode Coins. Accepted Candidates From the Interviews, 2042. Special Array With X Elements Greater Than or Equal X, 1611. Keep Multiplying Found Values by Two, 2155. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Smallest Subtree with all the Deepest Nodes, 873. Pour Water Between Buckets to Make Water Levels Equal, 2138. Minimum Value to Get Positive Step by Step Sum, 1414. Number of Steps to Reduce a Number in Binary Representation to One, 1412. Find the Divisibility Array of a String, 2576. We can retrieve the minimum depths of left and right subtrees of the root using Depth First Search(DFS) and then return the minimum of the two depths. Lowest Common Ancestor of a Binary Tree II, 1647. Minimum Lines to Represent a Line Chart, 2282. If the left subtree is NULL,it will return a height equal to 0but as we have found no leaf in this subtree, so this 0will be a wrong answer. This seems to be the complement of getting the maximum depth of a binary tree problem also found in LeetCode. Minimum Number of Taps to Open to Water a Garden, 1327. Serialize and Deserialize Binary Tree, 298. Construct Target Array With Multiple Sums, 1356. The Users That Are Eligible for Discount, 2231. Ways to Split Array Into Good Subarrays, 2752. Kth Smallest Element in a Sorted Matrix, 381. Maximum XOR With an Element From Array, 1712. Minimum Swaps to Group All 1's Together, 1153. Minimum Number of Removals to Make Mountain Array, 1673. How Many Numbers Are Smaller Than the Current Number, 1368. Number of Increasing Paths in a Grid, 2334. They also have a repository of solutions with the reasoning behind each step. Split a String Into the Max Number of Unique Substrings, 1594. Binary Search Tree to Greater Sum Tree, 1039. And if the right subtree is NULL, then recur for the left subtree. Lexicographically Smallest String After Applying Operations, 1628. Minimum Number of Work Sessions to Finish the Tasks, 1989. Number of Different Subsequences GCDs, 1820. Minimum Hours of Training to Win a Competition, 2385. Design Graph With Shortest Path Calculator, 2644. For your input: In test cases usually trees are represented as in-order traversal, so you can build up a tree from it using suitable traversal algorithm or you could build it manually: root = TreeNode (3) root.left = TreeNode (9) root.right = TreeNode (20) root.right.right = TreeNode (7) root.right.left = TreeNode (15) Your algorithm is correct . Minimum Moves to Move a Box to Their Target Location, 1265. Merge Triplets to Form Target Triplet, 1900. Minimum Depth of Binary Tree - LeetCode 4.5 (22 votes) Solution Approach 1: Depth-First Search (DFS) Intuition If you're not familiar with DFS, check out our Explore Card. Choose Numbers From Two Arrays in Range, 2144. The First Day of the Maximum Recorded Degree in Each City, 2316.