| 1 |
Set Matrix Zero |
Easy
|
|
| 2 |
Move Zeros |
Easy
|
|
| 3 |
Best to buy and sell stocks |
Easy
|
|
| 4 |
Chocolate Distribution |
Easy
|
|
| 5 |
Find Duplicate Number |
Easy
|
|
| 6 |
Two Sum |
Easy
|
|
| 7 |
Best to buy and sell stocks 2 |
Easy
|
|
| 8 |
Sub-Array divisible by K |
Medium
|
|
| 9 |
Find All Duplicates |
Medium
|
|
| 10 |
Container with Most Water |
Medium
|
|
| 11 |
Three Sum |
Medium
|
|
| 12 |
Four Sum |
Medium
|
|
| 13 |
Maximum Points obtain from Cards |
Medium
|
|
| 14 |
Sub-Arrays sum Equals to K |
Medium
|
|
| 15 |
Reverse Pairs |
Medium
|
|
| 16 |
Game of Life |
Medium
|
|
| 17 |
Max Value of Equation |
Hard
|
|
| 18 |
Insert Delete Gtrandom |
Hard
|
|
| 19 |
Valid Parenthesis |
Easy
|
|
| 20 |
Implement StrStr |
Easy
|
|
| 21 |
Valid Palindrome 2 |
Easy
|
|
| 22 |
Integer to Roman |
Medium
|
|
| 23 |
Generate Parenthesis |
Medium
|
|
| 24 |
Simplify Path |
Medium
|
|
| 25 |
Reverse Words in a String |
Medium
|
|
| 26 |
Rabin Karp Algorithm |
Medium
|
|
| 27 |
Group Anagrams |
Medium
|
|
| 28 |
Word Wrap |
Medium
|
|
| 29 |
Minimum Window Substring |
Hard
|
|
| 30 |
Boyer Moore Algorithm |
Hard
|
|
| 31 |
Rotate Image |
Medium
|
|
| 32 |
Missing Number |
Easy
|
|
| 33 |
Valid Sqaure |
Medium
|
|
| 34 |
Pair with Given Difference |
Easy
|
|
| 35 |
Allocate Minimum Number of Pages |
Hard
|
|
| 36 |
Rotate Sorted Array |
Hard
|
|
| 37 |
Split Array Largest Sum |
Hard
|
|
| 38 |
Linked List Cycle |
Easy
|
|
| 39 |
Convert Binary number in a Linked List |
Easy
|
|
| 40 |
Intersection of Two Linked List |
Easy
|
|
| 41 |
Zig Zag Conversion |
Medium
|
|
| 42 |
Word Break |
Medium
|
|
| 43 |
Magic Squares In Grid |
Medium
|
|
| 44 |
Sudoku Solver |
Hard
|
|
| 45 |
Count and Say |
Medium
|
|
| 46 |
First Missing Positive |
Hard
|
|
| 47 |
Trapping Rain Water |
Hard
|
|
| 48 |
Wildcard Matching |
Hard
|
|
| 49 |
Jump Game II |
Medium
|
|
| 50 |
N-Queens |
Hard
|
|
| 51 |
N-Queens II |
Hard
|
|
| 52 |
Length of Last Word |
Easy
|
|
| 53 |
Unique Paths |
Medium
|
|
| 54 |
Minimum Path Sum |
Medium
|
|
| 55 |
Valid Number |
Hard
|
|
| 56 |
Plus One |
Easy
|
|
| 57 |
Add Binary |
Easy
|
|
| 58 |
Text Justification |
Hard
|
|
| 59 |
Sqrt(x) |
Easy
|
|
| 60 |
Climbing Stairs |
Easy
|
|
| 61 |
Edit Distance |
Medium
|
|
| 62 |
Subsets |
Medium
|
|
| 63 |
Word Search |
Medium
|
|
| 64 |
Scramble String |
Hard
|
|
| 65 |
Decode Ways |
Medium
|
|
| 66 |
Restore IP Addresses |
Medium
|
|
| 67 |
Unique Binary Search Trees |
Medium
|
|
| 68 |
Validate Binary Search Tree |
Medium
|
|
| 69 |
Symmetric Tree |
Easy
|
|
| 70 |
Convert Sorted Array to BST |
Easy
|
|
| 71 |
Distinct Subsequences |
Hard
|
|
| 72 |
Best Time to Buy Stock 2 |
Medium
|
|
| 73 |
Best Time to Buyt Stock |
microsoft
|
|
| 74 |
Best Time to Buy Stock 3 |
Hard
|
|
| 75 |
Gas Station |
Medium
|
|
| 76 |
Linked List Cyvle 2 |
Medium
|
|
| 77 |
LRU Cache |
Medium
|
|
| 78 |
Max Point On Line |
Hard
|
|
| 79 |
Maximum Product Subarray |
Medium
|
|
| 80 |
Find Minimum in Rotated Sorted Array |
Medium
|
|
| 81 |
Min Stack |
Medium
|
|
| 82 |
Find Peak Element |
Medium
|
|
| 83 |
Fractions to Recurring Decimal |
Medium
|
|
| 84 |
Excel Sheet Column Number |
Easy
|
|
| 85 |
Factorial Trailing Zeros |
Medium
|
|
| 86 |
Dungeon Game |
Hard
|
|
| 87 |
Second Highest Salary |
Medium
|
|
| 88 |
Nth Highest Salary |
Medium
|
|
| 89 |
Rank Scores |
Medium
|
|
| 90 |
Consecutive Numbers |
Medium
|
|
| 91 |
Rising Temperature |
Easy
|
|
| 92 |
Binary Tree Right Side View |
Medium
|
|
| 93 |
Number of Islands |
Medium
|
|
| 94 |
Bitwise and of Numbers Range |
Medium
|
|
| 95 |
Happy Number |
Easy
|
|
| 96 |
Count Primes |
Medium
|
|
| 97 |
Course Schedule 2 |
Medium
|
|
| 98 |
Word Search 2 |
Medium
|
|
| 99 |
House Robber 2 |
Medium
|
|
| 100 |
The Skyline Problem |
Hard
|
|
| 101 |
Longest Substring Without Repeating Characters |
Medium
|
|
| 102 |
Regular Expression Matching |
Hard
|
|
| 103 |
Maximal Sqaure |
Medium
|
|
| 104 |
Rectangle Area |
Medium
|
|
| 105 |
Basic Calculator |
Hard
|
|
| 106 |
Kst Smallest Element in BST |
Medium
|
|
| 107 |
Number of Digit One |
Hard
|
|
| 108 |
Delete Node in a Linked List |
Medium
|
|
| 109 |
Product of Array Except Self |
Medium
|
|
| 110 |
Sliding Window Maximum |
Hard
|
|
| 111 |
Palindrome Linked List |
Easy
|
|
| 112 |
Different Ways to Add Parentheses |
Medium
|
|
| 113 |
Ugly Number II |
Medium
|
|
| 114 |
Integer to English Words |
Hard
|
|
| 115 |
H-Index |
Medium
|
|
| 116 |
Expression Add Operators |
Hard
|
|
| 117 |
Peeking Iterator |
Medium
|
|
| 118 |
Game of Life |
Medium
|
|
| 119 |
Bulls and Cows |
Medium
|
|
| 120 |
Remove Invalid Parentheses |
Hard
|
|
| 121 |
Burst Ballons |
Hard
|
|
| 122 |
Create Maximum Number |
Hard
|
|
| 123 |
Coin Change |
Medium
|
|
| 124 |
Odd Even Linked List |
Medium
|
|
| 125 |
Palindrome Pairs |
Hard
|
|
| 126 |
House Robber III |
Medium
|
|
| 127 |
Russian Doll Envelopes |
Hard
|
|
| 128 |
Design Twitter |
Medium
|
|
| 129 |
Water and Jug |
Medium
|
|
| 130 |
Find K Pairs with Smallest Sums |
Medium
|
|
| 131 |
Guess Number Higher or Lower II |
Medium
|
|
| 132 |
Lexicographical Number |
Medium
|
|
| 133 |
Perfect Rectangle |
Hard
|
|
| 134 |
Rotate Function |
Medium
|
|
| 135 |
Nth Digit |
Medium
|
|
| 136 |
Frog Jump |
Hard
|
|
| 137 |
Sum of Left Leaves |
Easy
|
|
| 138 |
Partition Equal Subset Sum |
Medium
|
|
| 139 |
Battleships in a Board |
Medium
|
|
| 140 |
Strong Password Checker |
Hard
|
|
