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 Symmetric 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 “Ctrl+F” To Find Any Questions Answer. & For Mobile User, You Just Need To Click On Three dots In Your Browser & You Will Get A “Find” 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 Easy, Medium, 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 Problem – Symmetric Tree– LeetCode Problem
Symmetric Tree– LeetCode Problem
Problem:
Given the root
of a binary tree, check whether it is a mirror of itself (i.e., symmetric around its center).
Example 1:
![Symmetric Tree LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [💯Correct] 2 symtree1](https://assets.leetcode.com/uploads/2021/02/19/symtree1.jpg)
Input: root = [1,2,2,3,4,4,3] Output: true
Example 2:
![Symmetric Tree LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [💯Correct] 3 symtree2](https://assets.leetcode.com/uploads/2021/02/19/symtree2.jpg)
Input: root = [1,2,2,null,3,null,3] Output: false
Constraints:
- The number of nodes in the tree is in the range
[1, 1000]
. -100 <= Node.val <= 100
Symmetric Tree– LeetCode Solutions
Symmetric Tree Solution in C++:
class Solution { public: bool isSymmetric(TreeNode* root) { return isSymmetric(root, root); } private: bool isSymmetric(TreeNode* p, TreeNode* q) { if (!p || !q) return p == q; return p->val == q->val && isSymmetric(p->left, q->right) && isSymmetric(p->right, q->left); } };
Symmetric Tree Solution in Java:
class Solution { public boolean isSymmetric(TreeNode root) { return isSymmetric(root, root); } private boolean isSymmetric(TreeNode p, TreeNode q) { if (p == null || q == null) return p == q; return p.val == q.val && isSymmetric(p.left, q.right) && isSymmetric(p.right, q.left); } }
Symmetric Tree Solution in Python:
class Solution: def isSymmetric(self, root: Optional[TreeNode]) -> bool: def isSymmetric(p: Optional[TreeNode], q: Optional[TreeNode]) -> bool: if not p or not q: return p == q return p.val == q.val and \ isSymmetric(p.left, q.right) and \ isSymmetric(p.right, q.left) return isSymmetric(root, root)
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.
Scrap metal traders Aluminium reprocessing plant Aluminum recycling logistics
Metal waste repurposing technologies, Aluminum cable scrap recycling guidelines, Metal recycling equipment
Scrap metal sustainability Scrap aluminum remelters Scrap metal buyers for aluminum
Recycling process optimization, Scrap aluminum cable sorting techniques, Scrap metal repurposing innovations
Metal scrap reclamation facility Aluminium scrap import restrictions Aluminium scrap circularity
Metal reclamation and repurposing, Aluminum cable scrap collection, Metal waste reuse
Scrap metal reclaiming yard services Aluminium scrap trading Aluminum recycling facility
Metal scrap recovery and reclamation, Recycling aluminum wires and cables, Scrap metal restoration
Metal waste recovery Scrap metal regulations Iron waste management
Ferrous material resource optimization, Iron scrap handling equipment, Scrap metal regeneration
Metal scrap utilization Ferrous material lifecycle analysis Iron scrap recovery operations
Ferrous material audit, Iron repurposing facility, Metal recovery solutions center
Scrap metal reclaiming solutions Ferrous material recycling capabilities Iron sorting
Ferrous metal reclamation operations, Iron reclaiming operations, Metal scrap refurbishing services
Scrap metal trade negotiations Ferrous material deconstruction Iron scrap salvage yard
Ferrous material awareness campaigns, Iron waste reutilization center, Metal residue reprocessing
AGENCANTIK
AGENCANTIK says Thank you very much, all the information above is very good and interesting
mexican drugstore online: cmq pharma – buying prescription drugs in mexico online
mexican drugstore online
https://cmqpharma.online/# mexican online pharmacies prescription drugs
mexican border pharmacies shipping to usa
mexican pharmacy: mexico pharmacy – medicine in mexico pharmacies
AGENCANTIK
AGENCANTIK very good website in indonesia
mexican online pharmacies prescription drugs: buying prescription drugs in mexico online – mexican border pharmacies shipping to usa
best canadian online pharmacy reviews: canadian pharmacy ratings – canadian pharmacy near me
mexican drugstore online medication from mexico pharmacy mexican online pharmacies prescription drugs
medicine in mexico pharmacies: buying from online mexican pharmacy – buying from online mexican pharmacy
http://indiapharmast.com/# reputable indian online pharmacy
mexican online pharmacies prescription drugs: buying from online mexican pharmacy – buying prescription drugs in mexico online
maple leaf pharmacy in canada reliable canadian pharmacy reviews canada drugs online review
precription drugs from canada: canadian drugs – escrow pharmacy canada
mexican pharmacy: pharmacies in mexico that ship to usa – mexico drug stores pharmacies
canadapharmacyonline: canadian discount pharmacy – canadian pharmacy cheap
https://foruspharma.com/# pharmacies in mexico that ship to usa
adderall canadian pharmacy: canadian pharmacies comparison – certified canadian international pharmacy
п»їbest mexican online pharmacies: mexican rx online – purple pharmacy mexico price list
northwest canadian pharmacy: drugs from canada – reliable canadian online pharmacy
online shopping pharmacy india best online pharmacy india reputable indian online pharmacy
canadian pharmacy service: canadian discount pharmacy – maple leaf pharmacy in canada
http://clomiddelivery.pro/# how to get cheap clomid prices
http://ciprodelivery.pro/# buy generic ciprofloxacin
https://ciprodelivery.pro/# purchase cipro
https://doxycyclinedelivery.pro/# doxycycline over the counter uk
Thanks for sharing. I read many of your blog posts, cool, your blog is very good.
http://amoxildelivery.pro/# order amoxicillin online
http://clomiddelivery.pro/# where buy generic clomid prices
https://doxycyclinedelivery.pro/# doxycycline 400 mg brand name
http://amoxildelivery.pro/# where to buy amoxicillin
http://doxycyclinedelivery.pro/# cheap doxycycline 100mg capsule