LeetCode Linked List Mastery List

✅ Easy

# Title Link Done
206 Reverse Linked List 🔗 LeetCode ☐
21 Merge Two Sorted Lists 🔗 LeetCode ☐
83 Remove Duplicates from Sorted List 🔗 LeetCode ☐
141 Linked List Cycle 🔗 LeetCode ☐
876 Middle of the Linked List 🔗 LeetCode ☐
234 Palindrome Linked List 🔗 LeetCode ☐

🟡 Medium

# Title Link Done
19 Remove Nth Node From End of List 🔗 LeetCode ☐
2 Add Two Numbers 🔗 LeetCode ☐
82 Remove Duplicates from Sorted List II 🔗 LeetCode ☐
24 Swap Nodes in Pairs 🔗 LeetCode ☑
143 Reorder List 🔗 LeetCode ☐
92 Reverse Linked List II 🔗 LeetCode ☐
86 Partition List 🔗 LeetCode ☐
328 Odd Even Linked List 🔗 LeetCode ☐
142 Linked List Cycle II 🔗 LeetCode ☐
707 Design Linked List 🔗 LeetCode ☐
109 Convert Sorted List to Binary Search Tree 🔗 LeetCode ☐

🔴 Hard

# Title Link Done
25 Reverse Nodes in k-Group 🔗 LeetCode ☐
23 Merge k Sorted Lists 🔗 LeetCode ☐
138 Copy List with Random Pointer 🔗 LeetCode ☐
147 Insertion Sort List 🔗 LeetCode ☐
1171 Remove Zero Sum Consecutive Nodes 🔗 LeetCode ☐

💡 Pro Tips

  • Practice writing from scratch: struct ListNode, recursion, dummy nodes
  • Memorize reverse list & two-pointer cycle detection patterns
  • Understand when to use dummy node (saves edge case pain)
  • For hard problems, focus on visual diagrams