CppCompetitive

LeetCode Problems

Linked List

• Add Two Numbers -> Solution
• Remove Nth Node From End of List -> Solution
• Merge Two Sorted Lists -> Solution
• Merge k Sorted Lists -> Solution
• Swap Nodes in Pairs -> Solution1 | Solution2
• Reverse Nodes in k-Group -> Solution1 | Solution2
• Rotate List -> Solution
• Remove Duplicates from Sorted List II -> Solution
• Remove Duplicates from Sorted List -> Solution
• Partition List -> Solution
• Reverse Linked List II -> Solution
• Copy List with Random Pointer -> Solution | Solution2
• Linked List Cycle -> Solution
• Linked List Cycle II -> Solution
• Reorder List -> Solution
• Insertion Sort List -> Solution
• Sort List -> Solution
• Intersection of Two Linked Lists -> Solution | Solution2
• Remove Linked List Elements -> Solution
• Reverse Linked List -> Solution
• Palindrome Linked List -> Solution | Solution2
• Delete Node in a Linked List -> Solution
• Odd Even Linked List -> Solution

Tree

• Binary Tree Inorder Traversal -> Solution
• Unique Binary Search Trees -> Solution
• Same Tree -> Solution
• Symmetric Tree -> Solution
• Recover Binary Search Tree -> Solution

Heap / Priority Queue

• Merge k Sorted Lists -> Solution
• Kth Largest Element in an Array -> Solution
• Sliding Window Maximum -> Solution
• Meeting Rooms II -> Solution1 | Solution2
• Ugly Number II -> Solution1 | Solution2
• Find Median from Data Stream -> Solution1 | Solution2

HashMap

• Two Sum -> Solution

Recursion

• Distinct Subsequences -> Solution | Solution2

• Triangle -> Solution

Dynamic Programming

• Unique Paths -> Solution | Solution2

• Minimum Path Sum -> Solution | Solution2

• Edit Distance -> Solution

• Decode Ways -> Solution

• Distinct Subsequences -> Solution | Solution2

• Triangle -> Solution | Solution2

• Best Time to Buy and Sell Stock -> Solution

Greedy

• Advantage Shuffle -> Solution

Two Pointer

• Best Time to Buy and Sell Stock -> Solution