Blid-75 Index

Index	Question	Statue	Level	Type
1	Contains Duplicate	Done	Easy	Array & Hashing
2	Valid Anagram	Done	Easy	Array & Hashing
3	Two Sum	Done	Easy	Array & Hashing
4	Group Anagrams	Done	Medium	Array & Hashing
5	Top K Frequent Elements	Done	Medium	Array & Hashing
6	Product of Array Except Self	Done	Medium	Array & Hashing
7	Encode and Decode Strings	Pending	Medium	Array & Hashing
8	Longest Consecutive Sequence	Done	Medium	Array & Hashing
9	Valid Palindrome	Done	Easy	Two Pointers
10	3Sum	Done	Medium	Two Pointers
11	Container with Most Water	Done	Medium	Two Pointers
12	Best Time to Buy & Sell Stock	Done	Easy	Sliding Window
13	Longest Substring Without Repeating Characters	Done	Medium	Sliding Window
14	Longest Repeating Character Replacement	Done	Medium	Sliding Window
15	Minimum Window Substring	Pending	Hard	Sliding Window
16	Valid Parentheses	Done	Easy	Stack
17	Search Rotated Sorted Array	Done	Medium	Binary Search
18	Find Minimum in Rotated Sorted Array	Done	Medium	Binary Search
19	Reverse Linked List	Pending	Easy	Linked List
20	Merge Two Linked Lists	Pending	Easy	Linked List
21	Linked List Cycle	Pending	Easy	Linked List
22	Reorder List	Pending	Medium	Linked List
23	Remove Nth Node from End of List	Pending	Medium	Linked List
24	Merge K Sorted Lists	Pending	Hard	Linked List
25	Invert Binary Tree	Done	Easy	Tree
26	Maximum Depth of Binary Tree	Done	Easy	Tree
27	Same Tree	Done	Easy	Tree
28	Subtree of Another Tree	Done	Easy	Tree
29	Lowest Common Ancestor of a BST	Done	Easy	Tree
30	Binary Tree Level Order Traversal	Pending	Medium	Tree
31	Validate Binary Search Tree	Pending	Medium	Tree
32	Kth Smallest Element in a BST	Pending	Medium	Tree
33	Construct Tree from Preorder and Inorder Traversal	Pending	Medium	Tree
34	Binary Tree Max Path Sum	Pending	Hard	Tree
35	Serialize and Deserialize Binary Tree	Pending	Hard	Tree