Two Pointers problems

26 Two Pointers DSA practice problems on CampusCode, each with statement, examples and constraints.

• 360. Reorder List Medium Linked List
• 361. Odd Even Linked List Medium Linked List
• 362. Rotate List by K Places Medium Linked List
• 363. Partition List Around a Value X Medium Linked List
• 365. Linked List Cycle II (Start of Cycle) Medium Linked List
• 372. Rearrange Linked List — Negatives Before Positives Medium Linked List
• 376. Find Length of Loop in Linked List Medium Linked List
• 380. Maximum Twin Sum of a Linked List Medium Linked List
• 386. Swapping Nodes in a Linked List (Values) Medium Linked List
• 387. Middle of the Linked List Medium Linked List
• 388. Palindrome Linked List (O(1) Space) Medium Linked List
• 393. Remove Duplicates from Sorted List II Medium Linked List
• 408. Longest Palindrome in a Linked List Hard Linked List
• 409. Detect and Remove Loop — All Edge Cases Hard Linked List
• 410. Reorder List to Min-Max Interleaving Hard Linked List
• 416. Maximum Sum Path in Two Sorted Linked Lists Hard Linked List
• 480. Find K Closest Elements in Sorted Array Medium Binary Search
• 500. Count of Pairs with Sum in a Range Medium Binary Search
• 517. Count Pairs in Two Sorted Arrays Whose Sum is K Medium Binary Search
• 528. Find K-th Smallest Pair Distance Hard Binary Search
• 562. Maximum Score of a Good Subarray Hard Binary Search
• 653. Trapping Rain Water Hard Stack
• 658. Longest Valid Parentheses (O(1) Space) Hard Stack
• 678. Count Subarrays With Score Less Than K Hard Stack
• 891. Two Sum in BST Easy Trees
• 892. Find Pairs with Given Sum in BST Easy Trees