- LeetCode - The Worlds Leading Online Programming Learning Platform
Level up your coding skills and quickly land a job This is the best place to expand your knowledge and get prepared for your next interview
- LeetCode Explore
LeetCode Explore is the best place for everyone to start practicing and learning on LeetCode No matter if you are a beginner or a master, there are always new topics waiting for you to explore
- Contest - LeetCode
Enhance your coding abilities and get valuable real-world feedback by participating in contests on LeetCode You can also win up to 5000 LeetCoins per contest, as well as bonus prizes from sponsored companies
- Problems - LeetCode
Boost your coding interview skills and confidence by practicing real interview questions with LeetCode Our platform offers a range of essential problems for practice, as well as the latest questions being asked by top-tier companies
- Study Plan - LeetCode
Enhance your coding skills and prepare for job interviews with LeetCode's study plans
- Two Sum - LeetCode
A really brute force way would be to search for all possible pairs of numbers but that would be too slow Again, it's best to try out brute force solutions just for completeness It is from these brute force solutions that you can come up with optimizations
- Swapping Nodes in a Linked List - LeetCode
You are given the head of a linked list, and an integer k Return the head of the linked list after swapping the values of the k th node from the beginning and the k th node from the end (the list is 1-indexed) Example 1: Input: head = [1,2,3,4,5], k = 2 Output: [1,4,3,2,5] Example 2: Input: head = [7,9,6,6,7,8,3,0,9,5], k = 5 Output: [7,9,6,6,8,7,3,0,9,5] Constraints: The number of nodes in
- Top Interview 150 - Study Plan - LeetCode
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