Problems

Total: 99 Easy: 69 Medium: 26 Hard: 0

• 🟩 Easy - 1. Two Sum

• 🟧 Medium - 2. Add Two Numbers

• 🟧 Medium - 7. Reverse Integer

• 🟩 Easy - 9. Palindrome Number

• 🟧 Medium - 11. Container With Most Water

• 🟧 Medium - 12. Integer to Roman

• 🟩 Easy - 13. Roman to Integer

• 🟩 Easy - 14. Longest Common Prefix

• 🟧 Medium - 15. 3Sum

• 🟩 Easy - 21. Merge Two Sorted Lists

• 🟩 Easy - 26. Remove Duplicates from Sorted Array

• 🟩 Easy - 27. Remove Element

• 🟩 Easy - 28. Find the Index of the First Occurrence in a String

• 🟧 Medium - 34. Find First and Last Position of Element in Sorted Array

• 🟩 Easy - 35. Search Insert Position

• 🟧 Medium - 43. Multiply Strings

• 🟧 Medium - 49. Group Anagrams

• 🟧 Medium - 50. Pow(x, n)

• 🟧 Medium - 54. Spiral Matrix

• 🟩 Easy - 58. Length of Last Word

• 🟩 Easy - 66. Plus One

• 🟩 Easy - 67. Add Binary

• 🟩 Easy - 69. Sqrt(x)

• 🟧 Medium - 73. Set Matrix Zeroes

• 🟧 Medium - 75. Sort Colors

• 🟩 Easy - 88. Merge Sorted Array

• 🟩 Easy - 104. Maximum Depth of Binary Tree

• 🟩 Easy - 121. Best Time to Buy and Sell Stock

• 🟧 Medium - 122. Best Time to Buy and Sell Stock II

• 🟩 Easy - 136. Single Number

• 🟧 Medium - 146. LRU Cache

• 🟧 Medium - 189. Rotate Array

• 🟩 Easy - 206. Reverse Linked List

• 🟩 Easy - 217. Contains Duplicate

• 🟩 Easy - 219. Contains Duplicate II

• 🟩 Easy - 226. Invert Binary Tree

• 🟧 Medium - 238. Product of Array Except Self

• 🟩 Easy - 242. Valid Anagram

• 🟩 Easy - 268. Missing Number

• 🟩 Easy - 283. Move Zeroes

• 🟩 Easy - 350. Intersection of Two Arrays II

• 🟩 Easy - 383. Ransom Note

• 🟩 Easy - 389. Find the Difference

• 🟩 Easy - 412. Fizz Buzz

• 🟩 Easy - 414. Third Maximum Number

• 🟧 Medium - 445. Add Two Numbers II

• 🟩 Easy - 448. Find All Numbers Disappeared in an Array

• 🟩 Easy - 459. Repeated Substring Pattern

• 🟩 Easy - 485. Max Consecutive Ones

• 🟩 Easy - 509. Fibonacci Number

• 🟩 Easy - 637. Average of Levels in Binary Tree

• 🟩 Easy - 657. Robot Return to Origin

• 🟩 Easy - 682. Baseball Game

• 🟩 Easy - 704. Binary Search

• 🟩 Easy - 705. Design HashSet

• 🟩 Easy - 709. To Lower Case

• 🟩 Easy - 724. Find Pivot Index

• 🟩 Easy - 876. Middle of the Linked List

• 🟩 Easy - 860. Lemonade Change

• 🟩 Easy - 896. Monotonic Array

• 🟩 Easy - 905. Sort Array By Parity

• 🟧 Medium - 916. Word Subsets

• 🟩 Easy - 941. Valid Mountain Array

• 🟩 Easy - 976. Largest Perimeter Triangle

• 🟩 Easy - 977. Squares of a Sorted Array

• 🟧 Medium - 1041. Robot Bounded In Circle

• 🟩 Easy - 1051. Height Checker

• 🟩 Easy - 1089. Duplicate Zeros

• 🟩 Easy - 1232. Check If It Is a Straight Line

• 🟩 Easy - 1275. Find Winner on a Tic Tac Toe Game

• 🟩 Easy - 1295. Find Numbers with Even Number of Digits

• 🟩 Easy - 1299. Replace Elements with Greatest Element on Right Side

• 🟩 Easy - 1342. Number of Steps to Reduce a Number to Zero

• 🟩 Easy - 1346. Check If N and Its Double Exist

• 🟧 Medium - 1476. Subrectangle Queries

• 🟩 Easy - 1480. Running Sum of 1d Array

• 🟩 Easy - 1491. Average Salary Excluding the Minimum and Maximum Salary

• 🟩 Easy - 1502. Can Make Arithmetic Progression From Sequence

• 🟩 Easy - 1523. Count Odd Numbers in an Interval Range

• 🟩 Easy - 1572. Matrix Diagonal Sum

• 🟩 Easy - 1672. Richest Customer Wealth

• 🟩 Easy - 1752. Check if Array Is Sorted and Rotated

• 🟩 Easy - 1768. Merge Strings Alternately

• 🟧 Medium - 1769. Minimum Number of Operations to Move All Balls to Each Box

• 🟩 Easy - 1790. Check if One String Swap Can Make Strings Equal

• 🟩 Easy - 1800. Maximum Ascending Subarray Sum

• 🟩 Easy - 1822. Sign of the Product of an Array

• 🟧 Medium - 1930. Unique Length-3 Palindromic Subsequences

• 🟩 Easy - 1991. Find the Middle Index in Array

• 🟩 Easy - 2185. Counting Words With a Given Prefix

• 🟩 Easy - 2235. Add Two Integers

• 🟩 Easy - 2236. Root Equals Sum of Children

• 🟧 Medium - 2270. Number of Ways to Split Array

• 🟧 Medium - 2381. Shifting Letters II

• 🟧 Medium - 2559. Count Vowel Strings in Ranges

• 🟧 Medium - 2610. Convert an Array Into a 2D Array With Conditions

• 🟧 Medium - 2657. Find the Prefix Common Array of Two Arrays

• 🟩 Easy - 3042. Count Prefix and Suffix Pairs I

• 🟩 Easy - 3105. Longest Strictly Increasing or Strictly Decreasing Subarray

• 🟩 Easy - 3151. Special Array I

• 🟧 Medium - 3223. Minimum Length of String After Operations