156
Problems Solved
All Problems
- 01 Matrix
- 3Sum
- 3Sum Closest
- 4Sum
- Add Binary
- Add Two Numbers
- Balanced Binary Tree
- Best Time to Buy and Sell Stock
- Big Countries
- Binary Search
- Binary Search Tree to Greater Sum Tree
- Binary Tree Inorder Traversal
- Binary Tree Level Order Traversal
- Bitwise AND of Numbers Range
- Bitwise OR of Even Numbers in an Array
- Card Flipping Game
- Cells with Odd Values in a Matrix
- Check If String Is Transformable With Substring Sort Operations
- Classes With at Least 5 Students
- Climbing Stairs
- Coin Change II
- Combination Sum
- Combination Sum II
- Combine Two Tables
- Consecutive Numbers
- Container With Most Water
- Contains Duplicate
- Convert Integer to the Sum of Two No-Zero Integers
- Convert Sorted Array to Binary Search Tree
- Count and Say
- Count Servers that Communicate
- Counting Words With a Given Prefix
- Customers Who Never Order
- Decrypt String from Alphabet to Integer Mapping
- Delete Duplicate Emails
- Department Highest Salary
- Department Top Three Salaries
- Design HashSet
- Diameter of Binary Tree
- Divide Two Integers
- Duplicate Emails
- Employees Earning More Than Their Managers
- Exchange Seats
- Find Duplicate Subtrees
- Find First and Last Position of Element in Sorted Array
- Find Median from Data Stream
- Find Minimum in Rotated Sorted Array
- Find N Unique Integers Sum up to Zero
- Find the Index of the First Occurrence in a String
- Find the Smallest Divisor Given a Threshold
- First Bad Version
- First Missing Positive
- Fizz Buzz
- Flood Fill
- Generate Parentheses
- Group Anagrams
- Implement Queue using Stacks
- Insert Interval
- Insertion Sort List
- Integer to Roman
- Invert Binary Tree
- Jump Game II
- K Closest Points to Origin
- Letter Combinations of a Phone Number
- Linked List Cycle
- Linked List in Binary Tree
- Longest Common Prefix
- Longest Palindrome
- Longest Palindromic Substring
- Longest Substring Without Repeating Characters
- Longest Valid Parentheses
- Lowest Common Ancestor of a Binary Search Tree
- Majority Element
- Maximum Depth of Binary Tree
- Maximum Length of Pair Chain
- Maximum Subarray
- Maximum Swap
- Median of Two Sorted Arrays
- Merge k Sorted Lists
- Merge Two Sorted Lists
- Middle of the Linked List
- Minimum ASCII Delete Sum for Two Strings
- Minimum Flips to Make a OR b Equal to c
- Minimum Number of Increments on Subarrays to Form a Target Array
- Minimum Number of K Consecutive Bit Flips
- Minimum Number of Steps to Make Two Strings Anagram II
- Minimum Number of Swaps to Make the String Balanced
- Most Beautiful Item for Each Query
- Multiply Strings
- Next Permutation
- Nth Highest Salary
- Number of Arithmetic Triplets
- Number of Islands
- Number of Recent Calls
- Number of Ways to Split Array
- Palindrome Number
- Palindromic Substrings
- Pancake Sorting
- Path Sum II
- Patients With a Condition
- Permutations
- Permutations II
- Pow(x, n)
- Preimage Size of Factorial Zeroes Function
- Print in Order
- Random Pick Index
- Range Addition II
- Rank Scores
- Ransom Note
- Rectangle Area
- Regular Expression Matching
- Remove All Adjacent Duplicates In String
- Remove All Adjacent Duplicates in String II
- Remove Comments
- Remove Duplicates from Sorted Array
- Remove Element
- Remove Nth Node From End of List
- Repeated String Match
- Reverse Integer
- Reverse Linked List
- Reverse Nodes in k-Group
- Rising Temperature
- RLE Iterator
- Roman to Integer
- Rotate Image
- Rotting Oranges
- Search in Rotated Sorted Array
- Search Insert Position
- Second Highest Salary
- Serialize and Deserialize BST
- Short Encoding of Words
- Sort Colors
- Split Linked List in Parts
- Sqrt(x)
- String to Integer (atoi)
- Substring with Concatenation of All Words
- Subtract the Product and Sum of Digits of an Integer
- Sudoku Solver
- Sum of Nodes with Even-Valued Grandparent
- Swap Nodes in Pairs
- Symmetric Tree
- Tenth Line
- Trapping Rain Water
- Triangle
- Trips and Users
- Two Sum
- Unique Number of Occurrences
- Valid Anagram
- Valid Palindrome
- Valid Parentheses
- Valid Phone Numbers
- Valid Sudoku
- Water and Jug Problem
- Wildcard Matching
- XOR Queries of a Subarray
- Zigzag Conversion