All companies
De Shaw
12 Easy63 Medium30 Hard105 total
| No. | Problem | Difficulty | Frequency |
|---|---|---|---|
| 968 | Binary Tree Cameras | Hard | |
| 3469 | Find Minimum Cost to Remove Array Elements | Medium | |
| 17 | Letter Combinations of a Phone Number | Medium | |
| 2920 | Maximum Points After Collecting Coins From All Nodes | Hard | |
| 1122 | Relative Sort Array | Easy | |
| 3077 | Maximum Strength of K Disjoint Subarrays | Hard | |
| 2171 | Removing Minimum Number of Magic Beans | Medium | |
| 3082 | Find the Sum of the Power of All Subsequences | Hard | |
| 3108 | Minimum Cost Walk in Weighted Graph | Hard | |
| 3085 | Minimum Deletions to Make String K-Special | Medium | |
| 1262 | Greatest Sum Divisible by Three | Medium | |
| 2343 | Query Kth Smallest Trimmed Number | Medium | |
| 2352 | Equal Row and Column Pairs | Medium | |
| 3209 | Number of Subarrays With AND Value of K | Hard | |
| 1326 | Minimum Number of Taps to Open to Water a Garden | Hard | |
| 1358 | Number of Substrings Containing All Three Characters | Medium | |
| 2875 | Minimum Size Subarray in Infinite Array | Medium | |
| 2430 | Maximum Deletions on a String | Hard | |
| 2387 | Median of a Row Wise Sorted Matrix | Medium | |
| 2542 | Maximum Subsequence Score | Medium | |
| 2660 | Determine the Winner of a Bowling Game | Easy | |
| 2558 | Take Gifts From the Richest Pile | Easy | |
| 2644 | Find the Maximum Divisibility Score | Easy | |
| 1679 | Max Number of K-Sum Pairs | Medium | |
| 2800 | Shortest String That Contains Three Strings | Medium | |
| 1927 | Sum Game | Medium | |
| 2972 | Count the Number of Incremovable Subarrays II | Hard | |
| 2984 | Find Peak Calling Hours for Each City | Medium | |
| 3323 | Minimize Connected Groups by Inserting Interval | Medium | |
| 3332 | Maximum Points Tourist Can Earn | Medium | |
| 3383 | Minimum Runes to Add to Cast Spell | Hard | |
| 3628 | Maximum Number of Subsequences After One Inserting | Medium | |
| 42 | Trapping Rain Water | Hard | |
| 198 | House Robber | Medium | |
| 239 | Sliding Window Maximum | Hard | |
| 380 | Insert Delete GetRandom O(1) | Medium | |
| 440 | K-th Smallest in Lexicographical Order | Hard | |
| 20 | Valid Parentheses | Easy | |
| 169 | Majority Element | Easy | |
| 871 | Minimum Number of Refueling Stops | Hard | |
| 779 | K-th Symbol in Grammar | Medium | |
| 2434 | Using a Robot to Print the Lexicographically Smallest String | Medium | |
| 767 | Reorganize String | Medium | |
| 4 | Median of Two Sorted Arrays | Hard | |
| 128 | Longest Consecutive Sequence | Medium | |
| 152 | Maximum Product Subarray | Medium | |
| 2551 | Put Marbles in Bags | Hard | |
| 752 | Open the Lock | Medium | |
| 3016 | Minimum Number of Pushes to Type Word II | Medium | |
| 875 | Koko Eating Bananas | Medium | |
| 2617 | Minimum Number of Visited Cells in a Grid | Hard | |
| 1283 | Find the Smallest Divisor Given a Threshold | Medium | |
| 475 | Heaters | Medium | |
| 1574 | Shortest Subarray to be Removed to Make Array Sorted | Medium | |
| 668 | Kth Smallest Number in Multiplication Table | Hard | |
| 829 | Consecutive Numbers Sum | Hard | |
| 518 | Coin Change II | Medium | |
| 470 | Implement Rand10() Using Rand7() | Medium | |
| 168 | Excel Sheet Column Title | Easy | |
| 1048 | Longest String Chain | Medium | |
| 3281 | Maximize Score of Numbers in Ranges | Medium | |
| 2104 | Sum of Subarray Ranges | Medium | |
| 735 | Asteroid Collision | Medium | |
| 2221 | Find Triangular Sum of an Array | Medium | |
| 200 | Number of Islands | Medium | |
| 146 | LRU Cache | Medium | |
| 994 | Rotting Oranges | Medium | |
| 1000 | Minimum Cost to Merge Stones | Hard | |
| 3 | Longest Substring Without Repeating Characters | Medium | |
| 1642 | Furthest Building You Can Reach | Medium | |
| 74 | Search a 2D Matrix | Medium | |
| 424 | Longest Repeating Character Replacement | Medium | |
| 121 | Best Time to Buy and Sell Stock | Easy | |
| 227 | Basic Calculator II | Medium | |
| 1383 | Maximum Performance of a Team | Hard | |
| 852 | Peak Index in a Mountain Array | Medium | |
| 122 | Best Time to Buy and Sell Stock II | Medium | |
| 1569 | Number of Ways to Reorder Array to Get Same BST | Hard | |
| 2680 | Maximum OR | Medium | |
| 209 | Minimum Size Subarray Sum | Medium | |
| 18 | 4Sum | Medium | |
| 943 | Find the Shortest Superstring | Hard | |
| 34 | Find First and Last Position of Element in Sorted Array | Medium | |
| 410 | Split Array Largest Sum | Hard | |
| 341 | Flatten Nested List Iterator | Medium | |
| 1244 | Design A Leaderboard | Medium | |
| 91 | Decode Ways | Medium | |
| 68 | Text Justification | Hard | |
| 1434 | Number of Ways to Wear Different Hats to Each Other | Hard | |
| 212 | Word Search II | Hard | |
| 32 | Longest Valid Parentheses | Hard | |
| 44 | Wildcard Matching | Hard | |
| 1368 | Minimum Cost to Make at Least One Valid Path in a Grid | Hard | |
| 2222 | Number of Ways to Select Buildings | Medium | |
| 962 | Maximum Width Ramp | Medium | |
| 851 | Loud and Rich | Medium | |
| 696 | Count Binary Substrings | Easy | |
| 1 | Two Sum | Easy | |
| 88 | Merge Sorted Array | Easy | |
| 316 | Remove Duplicate Letters | Medium | |
| 213 | House Robber II | Medium | |
| 11 | Container With Most Water | Medium | |
| 99 | Recover Binary Search Tree | Medium | |
| 242 | Valid Anagram | Easy | |
| 134 | Gas Station | Medium |