| 4 |
Median of Two Sorted Arrays |
|
| 5 |
Longest Palindromic Substring |
|
| 17 |
Letter Combinations of Phone Number |
|
| 24 |
Swap Nodes in Pairs |
|
| 33 |
Search in Rotated Sorted Array |
|
| 34 |
Find First and Last Position of Element in Sorted Array |
|
| 46 |
Permutations |
|
| 50 |
Pow(x,n) |
|
| 54 |
Spiral Matrix |
|
| 59 |
Spiral Matrix II |
|
| 63 |
Unique Paths II |
|
| 68 |
Text Justification |
|
| 71 |
Simplifying Path |
|
| 74 |
Search a 2D Matrix |
|
| 77 |
Combinations |
|
| 81 |
Search in Rotated Sorted Array II |
|
| 86 |
Partition List |
|
| 92 |
Reverse Linked List II |
|
| 95 |
Unique Binary Search Trees II |
|
| 97 |
Interleaving Strings |
|
| 111 |
Minimum Depth of a Binary Tree |
|
| 118 |
Pascal's Triangle |
|
| 119 |
Pascal's Triangle II |
|
| 135 |
Candy |
|
| 137 |
Single Number II |
|
| 138 |
Copy list with Random Pointer |
|
| 139 |
Word break |
|
| 141 |
Linked List Cycle |
|
| 146 |
LRU Cache |
|
| 168 |
Excel Sheet Column Title |
|
| 207 |
Course Schedule |
|
| 209 |
Minimum Size Subarray Sum |
|
| 215 |
Kth Largest element in an array |
|
| 225 |
Implement Stack using Queues |
|
| 228 |
Summary Ranges |
|
| 239 |
Sliding Window Maximum |
|
| 258 |
Add Digits |
|
| 287 |
Find the Duplicate Number |
|
| 316 |
Remove Duplicate Letters |
|
| 319 |
Bulb Switcher |
|
| 332 |
Reconstruct Itinerary |
|
| 338 |
Counting Bits |
|
| 341 |
Flatten Nested List Iterator |
|
| 342 |
Power of Four |
|
| 343 |
Integer Break |
|
| 347 |
Top K Frequent Elements |
|
| 373 |
Find K Pairs with Smallest Sums |
|
| 389 |
Find the Difference |
|
| 392 |
Is Subsequence |
|
| 399 |
Evaluate Division |
|
| 403 |
Frog Jump |
|
| 435 |
Non Overlapping Intervals |
|
| 445 |
Add two numbers II |
|
| 459 |
Repeated Substring Patterns |
|
| 486 |
Predict the Winner |
|
| 501 |
Find Mode in Binary Search Tree |
|
| 515 |
Find Largest Value in Each Tree Row |
|
| 516 |
Longest Palindromic Subsequence |
|
| 518 |
Coin Change II |
|
| 530 |
Minimum Absolute Difference in BST |
|
| 542 |
01 Matrix |
|
| 547 |
Number of Provinices |
|
| 646 |
Maximum Length of a Pair Chain |
|
| 649 |
Dota2 Senate |
|
| 662 |
Maximum Width of Binary Tree |
|
| 664 |
Maximum Width of Binary Tree |
|
| 673 |
Number of Longest Increasing Sub-sequences |
|
| 688 |
Knight Probability in Chessboard |
|
| 703 |
Kth Largest element in a stream |
|
| 705 |
Design Hashset |
|
| 706 |
Design Hashmap |
|
| 712 |
Minimum ASCII Delete Sum for Two Strings |
|
| 714 |
Best Time to Buy and Sell Stock with Transaction Fee |
|
| 725 |
Split Linked List in Parts |
|
| 735 |
Asteroid Collision |
|
| 744 |
Find samllest letter greater than target |
|
| 746 |
Min Cost Climbing Stairs |
|
| 758 |
Is Graph Bipartite? |
|
| 767 |
Reorganize String |
|
| 779 |
K-th Symbol in Grammar |
|
| 802 |
Find Eventual Safe States |
|
| 808 |
Soup Servings |
|
| 823 |
Binary Tree with Factors |
|
| 837 |
New 21 Game |
|
| 839 |
Similar String Groups |
|
| 844 |
Backspace String Compare |
|
| 852 |
Peak Index in a Mountain Array |
|
| 859 |
Buddy Strings |
|
| 863 |
All Nodes Distance K in Binary Tree |
|
| 864 |
Shortest Path to Get All Keys |
|
| 879 |
Profitable Schemes |
|
| 880 |
Decoded String at Index |
|
| 894 |
All Possible Full Binary Trees |
|
| 896 |
Monotonic Array |
|
| 920 |
Number of Music Playlist |
|
| 934 |
Shortest Bridge |
|
| 946 |
Validate Stack Sequences |
|
| 956 |
Tallest Billboard |
|
| 1027 |
Longest Arithmetic Subsequence |
|
| 1035 |
Uncrossed Lines |
|
| 1046 |
Last Stone Weight |
|
| 1091 |
Shortest Path in Binary Matrix |
|
| 1095 |
Find in Mountain Array |
|
| 1125 |
Smallest Sufficient Team |
|
| 1140 |
Stone Game II |
|
| 1146 |
Snapshot Array |
|
| 1161 |
Maximum Level Sum of a Binary Tree |
|
| 1187 |
Make Array Strictly Increasing |
|
| 1203 |
Sort Items by Groups Respecting Dependencies |
|
| 1218 |
Longest Arithmetic Subsequence of Given Difference |
|
| 1232 |
Check If It Is a Straight Line |
|
| 1282 |
Group the People Given the Group Size They Belong To |
|
| 1312 |
Minimum Insertion Steps to Make a String Palindrome |
|
| 1318 |
Minimum Flips to Make a OR b Equal to c |
|
| 1326 |
Minimum Number of Taps to Open to Water a Garden |
|
| 1337 |
The K Weakest Rows in a Matrix |
|
| 1351 |
Count Negative Numbers in a Sorted Matrix |
|
| 1361 |
Validate Binary Tree Nodes |
|
| 1372 |
Longest ZigZag Path in a Binary Tree |
|
| 1376 |
Time needed to inform all employees |
|
| 1396 |
Design Underground System |
|
| 1406 |
Stone Game III |
|
| 1416 |
Restore The Array |
|
| 1422 |
Maximum Score After Splitting a String |
|
| 1431 |
Kids With the Greatest Number of Candies |
|
| 1456 |
Maximum Number of Vowels in a Substring of Given Length |
|
| 1489 |
Find Critical and Pseudo Critical Edges in Minimum Spanning Tree |
|
| 1491 |
Average Salary Excluding the Minimum and Maximum Salary |
|
| 1493 |
Longest Subarray of 1's After Deleting One Element |
|
| 1498 |
Number of Subsequences That Satisfy the Given Sum Condition |
|
| 1502 |
Can Make Arithemetic Progressions from a Sequence |
|
| 1512 |
Number of Good Pairs |
|
| 1514 |
Path with Maximum Probability |
|
| 1547 |
Minimum Cost to cut a stick |
|
| 1569 |
Number of Ways to Reorder Array to Get Same BST |
|
| 1572 |
Matrix Diagonal Sum |
|
| 1575 |
Count All Possible Routes |
|
| 1577 |
Maximum number of vertices to Reach all nodes |
|
| 1579 |
Remove Max Number of Edges to Keep Graph Fully Traversable |
|
| 1584 |
Min Cost to Connect All Points |
|
| 1601 |
Maximum Number of Achievable Transfer Requests |
|
| 1603 |
Design Parking System |
|
| 1615 |
Maximal Network Rank |
|
| 1639 |
Number of Ways to Form a Target String Given a Dictionary |
|
| 1647 |
Minimum Deletions to Make Character Frequencies Unique |
|
| 1658 |
Minimum Operations to Reduce X to Zero |
|
| 1697 |
Checking the Existence of Edge Length Limited Paths |
|
| 1721 |
Swapping Nodes in a Linked List |
|
| 1732 |
Find the highest Altitude |
|
| 1751 |
Maximum Number of Events That Can Be Attended II |
|
| 1768 |
Merge Strings Alternately |
|
| 1799 |
Maximize score after N Operations |
|
| 1802 |
Maximum Value at a Given Index in a Bounded Array |
|
| 1822 |
Sign of the Product of an Array |
|
| 1870 |
Minimum Speed to Arrive on Time |
|
| 1964 |
Find the Longest Valid Obstacle Course at Each Position |
|
| 1970 |
Last Day Where You Can Still Cross |
|
| 2009 |
Minimum Number of Operations to Make Array Continuous |
|
| 2022 |
Convert 1D Array Into 2D Array |
|
| 2028 |
Find Missing Observation |
|
| 2024 |
Maximize the confusion of an Exam |
|
| 2038 |
Remove Colored Pieces if Both Neighbors are the same color |
|
| 2050 |
Parallel Courses III |
|
| 2090 |
K Radius Subarray Averages |
|
| 2101 |
Detonate the Maximum Bombs |
|
| 2116 |
Check if a Parantheses String Can Be a Valid |
|
| 2130 |
Maximum Twin sum of a Linked List |
|
| 2140 |
Solving Questions with Brainpower |
|
| 2141 |
Maximum Running time for N Computers |
|
| 2215 |
Find the Difference of Two Arrays |
|
| 2218 |
Maximum Value of K Coins From Piles |
|
| 2251 |
Number of Flowers in Full Bloom |
|
| 2272 |
Substring With Largest Variance |
|
| 2305 |
Fair Distribution of Cookies |
|
| 2328 |
Number of Increasing Paths in a Grid |
|
| 2336 |
Smallest Number in Infinite Set |
|
| 2352 |
Equal Row and Column Pairs |
|
| 2366 |
Minimum Replacements to Sort the Array |
|
| 2369 |
Check if there is a Valid Partition For The Array |
|
| 2433 |
Find The Original Array of Prefix Xor |
|
| 2448 |
Minimum Cost to Make Array Equal |
|
| 2462 |
Total Cost to Hire K Workers |
|
| 2466 |
Count Ways To Build Good Strings |
|
| 2483 |
Minimum Penalty for a shop |
|
| 2542 |
Maximum Subsequence Score |
|
| 2551 |
Put Marbles in Bags |
|
| 2616 |
Minimize the Maximum difference in pairs |
|
| 2707 |
Extra Characters in a String |
|