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Goldman Sachs DSA Interview Questions
259 curated coding interview questions directly asked in Goldman Sachs technical rounds, sorted by frequency with recency and difficulty diagnostics.
259
Total Questions
50 (19%)
Easy Problems
163 (63%)
Medium Problems
46 (18%)
Hard Problems
🔥 Most Tested Topics:
Core DSA (84)Arrays (73)Strings (51)Trees (28)Binary Search (11)
📂 Sourced Datasets:
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Showing top 200 of 259 questions. View all 259 in the interactive tracker.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 42 | Trapping Rain Water | Hard | Core DSA | Two Pointers | 67.4% | 100.0% | 30d |
| 166 | Fraction to Recurring Decimal | Medium | Core DSA | Implementation / Reasoning | 30.9% | 87.5% | 30d |
| 1086 | High Five | Easy | Core DSA | Implementation / Reasoning | 74.2% | 75.0% | 30d |
| 4 | Median of Two Sorted Arrays | Hard | Arrays; Heap | Sorting / Prefix / Scan; Priority Queue | 46.6% | 75.0% | 3m |
| 11 | Container With Most Water | Medium | Core DSA | Two Pointers | 60.0% | 75.0% | 6m |
| 443 | String Compression | Medium | Strings | Hashing / Sliding Window | 60.0% | 62.5% | 3m |
| 64 | Minimum Path Sum | Medium | Arrays; Trees | Sorting / Prefix / Scan; DFS / BFS | 68.2% | 62.5% | 3m |
| 76 | Minimum Window Substring | Hard | Arrays; Strings; Trees | Sorting / Prefix / Scan; Hashing / Sliding Window; DFS / BFS; Sliding Window | 47.5% | 62.5% | 3m |
| 15 | 3Sum | Medium | Arrays | Sorting / Prefix / Scan | 39.1% | 62.5% | 3m |
| 56 | Merge Intervals | Medium | Arrays | Sorting / Prefix / Scan | 51.8% | 62.5% | 3m |
| 121 | Best Time to Buy and Sell Stock | Easy | Core DSA | Implementation / Reasoning | 56.8% | 62.5% | 3m |
| 49 | Group Anagrams | Medium | Strings | Hashing / Sliding Window | 72.6% | 62.5% | 3m |
| 33 | Search in Rotated Sorted Array | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 44.9% | 62.5% | 3m |
| 200 | Number of Islands | Medium | Graphs | BFS / DFS / Topological Sort | 64.4% | 62.5% | 3m |
| 387 | First Unique Character in a String | Easy | Strings | Hashing / Sliding Window | 65.5% | 62.5% | 3m |
| 657 | Robot Return to Origin | Easy | Core DSA | Implementation / Reasoning | 78.1% | 62.5% | 3m |
| 1209 | Remove All Adjacent Duplicates in String II | Medium | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 61.3% | 62.5% | 6m |
| 945 | Minimum Increment to Make Array Unique | Medium | Arrays | Sorting / Prefix / Scan | 60.7% | 62.5% | 6m |
| 134 | Gas Station | Medium | Greedy | Greedy | 48.0% | 62.5% | 6m |
| 1665 | Minimum Initial Energy to Finish Tasks | Hard | Arrays | Sorting / Prefix / Scan | 76.4% | 62.5% | 6m |
| 3 | Longest Substring Without Repeating Characters | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS; Sliding Window | 39.1% | 62.5% | all |
| 91 | Decode Ways | Medium | Dynamic Programming | State Transition | 38.0% | 62.5% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 62.5% | all |
| 688 | Knight Probability in Chessboard | Medium | Core DSA | Implementation / Reasoning | 57.0% | 62.5% | all |
| 1041 | Robot Bounded In Circle | Medium | Core DSA | Implementation / Reasoning | 56.5% | 62.5% | all |
| 3167 | Better Compression of String | Medium | Strings | Hashing / Sliding Window | 75.3% | 62.5% | all |
| 1823 | Find the Winner of the Circular Game | Medium | Core DSA | Implementation / Reasoning | 82.2% | 62.5% | all |
| 465 | Optimal Account Balancing | Hard | Core DSA | Implementation / Reasoning | 50.5% | 50.0% | 6m |
| 69 | Sqrt(x) | Easy | Binary Search | Binary Search | 41.8% | 50.0% | 6m |
| 457 | Circular Array Loop | Medium | Arrays | Sorting / Prefix / Scan | 37.5% | 50.0% | 6m |
| 695 | Max Area of Island | Medium | Graphs | BFS / DFS / Topological Sort | 74.0% | 50.0% | 6m |
| 53 | Maximum Subarray | Medium | Arrays | Sorting / Prefix / Scan | 53.3% | 50.0% | 6m |
| 347 | Top K Frequent Elements | Medium | Heap | Priority Queue | 66.4% | 50.0% | 6m |
| 875 | Koko Eating Bananas | Medium | Binary Search | Binary Search | 50.0% | 50.0% | 6m |
| 1094 | Car Pooling | Medium | Core DSA | Implementation / Reasoning | 56.4% | 50.0% | 6m |
| 62 | Unique Paths | Medium | Core DSA | Implementation / Reasoning | 66.8% | 50.0% | 6m |
| 934 | Shortest Bridge | Medium | Core DSA | Implementation / Reasoning | 59.5% | 50.0% | 6m |
| 13 | Roman to Integer | Easy | Strings | Hashing / Sliding Window | 66.6% | 50.0% | 6m |
| 1472 | Design Browser History | Medium | Design | Data Structure Design | 78.3% | 50.0% | 6m |
| 739 | Daily Temperatures | Medium | Stack / Queue | Monotonic Stack / Simulation | 68.7% | 50.0% | 6m |
| 1 | Two Sum | Easy | Arrays | Sorting / Prefix / Scan; Two Pointers | 57.5% | 50.0% | all |
| 55 | Jump Game | Medium | Greedy | Greedy | 40.9% | 50.0% | all |
| 118 | Pascal's Triangle | Easy | Core DSA | Implementation / Reasoning | 78.9% | 50.0% | all |
| 122 | Best Time to Buy and Sell Stock II | Medium | Core DSA | Implementation / Reasoning | 71.1% | 50.0% | all |
| 2087 | Minimum Cost Homecoming of a Robot in a Grid | Medium | Arrays | Sorting / Prefix / Scan | 51.7% | 50.0% | all |
| 153 | Find Minimum in Rotated Sorted Array | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 54.7% | 50.0% | all |
| 2097 | Valid Arrangement of Pairs | Hard | Strings | Hashing / Sliding Window | 66.6% | 50.0% | all |
| 215 | Kth Largest Element in an Array | Medium | Arrays; Heap | Sorting / Prefix / Scan; Priority Queue | 68.9% | 50.0% | all |
| 2154 | Keep Multiplying Found Values by Two | Easy | Core DSA | Implementation / Reasoning | 75.0% | 50.0% | all |
| 2266 | Count Number of Texts | Medium | Core DSA | Implementation / Reasoning | 50.2% | 50.0% | all |
| 2300 | Successful Pairs of Spells and Potions | Medium | Core DSA | Implementation / Reasoning | 49.6% | 50.0% | all |
| 2420 | Find All Good Indices | Medium | Core DSA | Implementation / Reasoning | 41.0% | 50.0% | all |
| 2438 | Range Product Queries of Powers | Medium | Arrays | Sorting / Prefix / Scan | 61.3% | 50.0% | all |
| 2446 | Determine if Two Events Have Conflict | Easy | Core DSA | Implementation / Reasoning | 53.3% | 50.0% | all |
| 2484 | Count Palindromic Subsequences | Hard | Core DSA | Implementation / Reasoning | 41.2% | 50.0% | all |
| 2550 | Count Collisions of Monkeys on a Polygon | Medium | Core DSA | Implementation / Reasoning | 30.1% | 50.0% | all |
| 706 | Design HashMap | Easy | Design | Data Structure Design | 66.6% | 50.0% | all |
| 862 | Shortest Subarray with Sum at Least K | Hard | Arrays | Sorting / Prefix / Scan | 32.8% | 50.0% | all |
| 931 | Minimum Falling Path Sum | Medium | Arrays; Trees | Sorting / Prefix / Scan; DFS / BFS | 60.8% | 50.0% | all |
| 1010 | Pairs of Songs With Total Durations Divisible by 60 | Medium | Core DSA | Implementation / Reasoning | 53.5% | 50.0% | all |
| 1109 | Corporate Flight Bookings | Medium | Core DSA | Implementation / Reasoning | 67.3% | 50.0% | all |
| 1116 | Print Zero Even Odd | Medium | Core DSA | Implementation / Reasoning | 65.5% | 50.0% | all |
| 3001 | Minimum Moves to Capture The Queen | Medium | Arrays | Sorting / Prefix / Scan | 22.5% | 50.0% | all |
| 2191 | Sort the Jumbled Numbers | Medium | Arrays | Sorting / Prefix / Scan | 60.0% | 50.0% | all |
| 1427 | Perform String Shifts | Easy | Strings | Hashing / Sliding Window | 56.0% | 50.0% | all |
| 3168 | Minimum Number of Chairs in a Waiting Room | Easy | Arrays | Sorting / Prefix / Scan | 79.4% | 50.0% | all |
| 1750 | Minimum Length of String After Deleting Similar Ends | Medium | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 56.1% | 50.0% | all |
| 1771 | Maximize Palindrome Length From Subsequences | Hard | Strings | Hashing / Sliding Window | 38.5% | 50.0% | all |
| 3437 | Permutations III | Medium | Backtracking | Backtracking | 86.9% | 50.0% | all |
| 3494 | Find the Minimum Amount of Time to Brew Potions | Medium | Arrays | Sorting / Prefix / Scan | 62.7% | 50.0% | all |
| 2 | Add Two Numbers | Medium | Core DSA | Implementation / Reasoning | 48.5% | 37.5% | all |
| 5 | Longest Palindromic Substring | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 37.8% | 37.5% | all |
| 8 | String to Integer (atoi) | Medium | Strings | Hashing / Sliding Window | 21.0% | 37.5% | all |
| 20 | Valid Parentheses | Easy | Strings | Hashing / Sliding Window | 44.2% | 37.5% | all |
| 50 | Pow(x, n) | Medium | Core DSA | Implementation / Reasoning | 38.7% | 37.5% | all |
| 51 | N-Queens | Hard | Backtracking | Backtracking | 75.5% | 37.5% | all |
| 54 | Spiral Matrix | Medium | Arrays | Sorting / Prefix / Scan | 56.8% | 37.5% | all |
| 70 | Climbing Stairs | Easy | Dynamic Programming | State Transition | 54.1% | 37.5% | all |
| 73 | Set Matrix Zeroes | Medium | Arrays | Sorting / Prefix / Scan | 62.9% | 37.5% | all |
| 135 | Candy | Hard | Core DSA | Implementation / Reasoning | 48.5% | 37.5% | all |
| 141 | Linked List Cycle | Easy | Linked List | Two Pointers | 54.3% | 37.5% | all |
| 152 | Maximum Product Subarray | Medium | Arrays | Sorting / Prefix / Scan | 36.4% | 37.5% | all |
| 160 | Intersection of Two Linked Lists | Easy | Linked List | Two Pointers | 63.7% | 37.5% | all |
| 162 | Find Peak Element | Medium | Binary Search | Binary Search | 47.0% | 37.5% | all |
| 198 | House Robber | Medium | Dynamic Programming | State Transition | 53.2% | 37.5% | all |
| 209 | Minimum Size Subarray Sum | Medium | Arrays | Sorting / Prefix / Scan | 51.7% | 37.5% | all |
| 218 | The Skyline Problem | Hard | Core DSA | Implementation / Reasoning | 45.4% | 37.5% | all |
| 238 | Product of Array Except Self | Medium | Arrays | Sorting / Prefix / Scan | 68.9% | 37.5% | all |
| 239 | Sliding Window Maximum | Hard | Arrays | Sorting / Prefix / Scan; Sliding Window | 48.8% | 37.5% | all |
| 295 | Find Median from Data Stream | Hard | Heap | Priority Queue | 54.5% | 37.5% | all |
| 326 | Power of Three | Easy | Core DSA | Implementation / Reasoning | 51.1% | 37.5% | all |
| 74 | Search a 2D Matrix | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 53.9% | 37.5% | all |
| 2375 | Construct Smallest Number From DI String | Medium | Strings | Hashing / Sliding Window | 85.6% | 37.5% | all |
| 421 | Maximum XOR of Two Numbers in an Array | Medium | Arrays | Sorting / Prefix / Scan | 53.5% | 37.5% | all |
| 560 | Subarray Sum Equals K | Medium | Arrays | Sorting / Prefix / Scan | 47.3% | 37.5% | all |
| 647 | Palindromic Substrings | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 72.8% | 37.5% | all |
| 735 | Asteroid Collision | Medium | Core DSA | Implementation / Reasoning | 47.9% | 37.5% | all |
| 780 | Reaching Points | Hard | Core DSA | Implementation / Reasoning | 34.4% | 37.5% | all |
| 844 | Backspace String Compare | Easy | Strings | Hashing / Sliding Window | 49.9% | 37.5% | all |
| 994 | Rotting Oranges | Medium | Core DSA | Implementation / Reasoning | 58.7% | 37.5% | all |
| 1011 | Capacity To Ship Packages Within D Days | Medium | Binary Search | Binary Search | 73.9% | 37.5% | all |
| 1395 | Count Number of Teams | Medium | Core DSA | Implementation / Reasoning | 70.2% | 37.5% | all |
| 1413 | Minimum Value to Get Positive Step by Step Sum | Easy | Arrays | Sorting / Prefix / Scan | 64.7% | 37.5% | all |
| 1832 | Check if the Sentence Is Pangram | Easy | Core DSA | Implementation / Reasoning | 84.2% | 37.5% | all |
| 424 | Longest Repeating Character Replacement | Medium | Strings | Hashing / Sliding Window | 59.7% | 37.5% | all |
| 273 | Integer to English Words | Hard | Strings | Hashing / Sliding Window | 35.0% | 37.5% | all |
| 23 | Merge k Sorted Lists | Hard | Arrays; Linked List; Heap | Sorting / Prefix / Scan; Two Pointers; Priority Queue | 59.6% | 37.5% | all |
| 641 | Design Circular Deque | Medium | Design | Data Structure Design | 64.7% | 37.5% | all |
| 1235 | Maximum Profit in Job Scheduling | Hard | Arrays | Sorting / Prefix / Scan | 54.7% | 37.5% | all |
| 206 | Reverse Linked List | Easy | Linked List | Two Pointers | 80.6% | 37.5% | all |
| 1004 | Max Consecutive Ones III | Medium | Core DSA | Implementation / Reasoning | 67.7% | 37.5% | all |
| 22 | Generate Parentheses | Medium | Strings | Hashing / Sliding Window | 78.7% | 37.5% | all |
| 752 | Open the Lock | Medium | Core DSA | Implementation / Reasoning | 61.3% | 37.5% | all |
| 128 | Longest Consecutive Sequence | Medium | Core DSA | Implementation / Reasoning | 47.1% | 37.5% | all |
| 1446 | Consecutive Characters | Easy | Strings | Hashing / Sliding Window | 60.4% | 37.5% | all |
| 414 | Third Maximum Number | Easy | Arrays | Sorting / Prefix / Scan | 39.4% | 37.5% | all |
| 283 | Move Zeroes | Easy | Core DSA | Two Pointers | 63.8% | 37.5% | all |
| 968 | Binary Tree Cameras | Hard | Trees | DFS / BFS | 47.9% | 37.5% | all |
| 322 | Coin Change | Medium | Dynamic Programming | State Transition | 48.4% | 37.5% | all |
| 3371 | Identify the Largest Outlier in an Array | Medium | Arrays | Sorting / Prefix / Scan | 36.3% | 37.5% | all |
| 210 | Course Schedule II | Medium | Graphs | BFS / DFS / Topological Sort | 55.5% | 37.5% | all |
| 1343 | Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold | Medium | Arrays | Sorting / Prefix / Scan | 72.9% | 37.5% | all |
| 85 | Maximal Rectangle | Hard | Core DSA | Implementation / Reasoning | 58.8% | 37.5% | all |
| 354 | Russian Doll Envelopes | Hard | Core DSA | Implementation / Reasoning | 37.9% | 37.5% | all |
| 1478 | Allocate Mailboxes | Hard | Core DSA | Implementation / Reasoning | 56.6% | 37.5% | all |
| 611 | Valid Triangle Number | Medium | Strings | Hashing / Sliding Window | 56.9% | 37.5% | all |
| 621 | Task Scheduler | Medium | Greedy | Greedy | 63.1% | 37.5% | all |
| 1219 | Path with Maximum Gold | Medium | Arrays | Sorting / Prefix / Scan | 68.4% | 37.5% | all |
| 25 | Reverse Nodes in k-Group | Hard | Trees; Linked List | DFS / BFS; Two Pointers | 66.1% | 37.5% | all |
| 84 | Largest Rectangle in Histogram | Hard | Core DSA | Implementation / Reasoning | 49.9% | 37.5% | all |
| 3649 | Number of Perfect Pairs | Medium | Core DSA | Implementation / Reasoning | 34.1% | 37.5% | all |
| 88 | Merge Sorted Array | Easy | Arrays | Sorting / Prefix / Scan | 54.9% | 37.5% | all |
| 3885 | Design Event Manager | Medium | Design | Data Structure Design | 50.8% | 37.5% | all |
| 12 | Integer to Roman | Medium | Strings | Hashing / Sliding Window | 71.0% | 25.0% | all |
| 17 | Letter Combinations of a Phone Number | Medium | Strings; Backtracking | Hashing / Sliding Window; Backtracking | 66.1% | 25.0% | all |
| 21 | Merge Two Sorted Lists | Easy | Arrays; Linked List | Sorting / Prefix / Scan; Two Pointers | 68.3% | 25.0% | all |
| 31 | Next Permutation | Medium | Backtracking | Backtracking | 45.3% | 25.0% | all |
| 41 | First Missing Positive | Hard | Arrays | Sorting / Prefix / Scan | 42.9% | 25.0% | all |
| 45 | Jump Game II | Medium | Greedy | Greedy | 42.9% | 25.0% | all |
| 48 | Rotate Image | Medium | Arrays | Sorting / Prefix / Scan | 80.1% | 25.0% | all |
| 79 | Word Search | Medium | Strings; Binary Search | Hashing / Sliding Window; Binary Search | 47.4% | 25.0% | all |
| 119 | Pascal's Triangle II | Easy | Core DSA | Implementation / Reasoning | 67.5% | 25.0% | all |
| 143 | Reorder List | Medium | Linked List | Two Pointers | 65.3% | 25.0% | all |
| 188 | Best Time to Buy and Sell Stock IV | Hard | Core DSA | Implementation / Reasoning | 50.1% | 25.0% | all |
| 221 | Maximal Square | Medium | Core DSA | Implementation / Reasoning | 50.3% | 25.0% | all |
| 268 | Missing Number | Easy | Arrays | Sorting / Prefix / Scan | 72.0% | 25.0% | all |
| 287 | Find the Duplicate Number | Medium | Arrays | Sorting / Prefix / Scan | 64.3% | 25.0% | all |
| 300 | Longest Increasing Subsequence | Medium | Dynamic Programming | State Transition | 59.4% | 25.0% | all |
| 340 | Longest Substring with At Most K Distinct Characters | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS; Sliding Window | 50.0% | 25.0% | all |
| 344 | Reverse String | Easy | Strings | Hashing / Sliding Window | 80.8% | 25.0% | all |
| 394 | Decode String | Medium | Strings; Dynamic Programming; Stack / Queue | Hashing / Sliding Window; State Transition; Monotonic Stack / Simulation | 62.6% | 25.0% | all |
| 452 | Minimum Number of Arrows to Burst Balloons | Medium | Arrays | Sorting / Prefix / Scan | 61.4% | 25.0% | all |
| 496 | Next Greater Element I | Easy | Stack / Queue | Monotonic Stack / Simulation | 76.1% | 25.0% | all |
| 567 | Permutation in String | Medium | Strings; Backtracking | Hashing / Sliding Window; Sliding Window; Backtracking | 48.9% | 25.0% | all |
| 2719 | Count of Integers | Hard | Core DSA | Implementation / Reasoning | 38.6% | 25.0% | all |
| 767 | Reorganize String | Medium | Strings | Hashing / Sliding Window | 57.1% | 25.0% | all |
| 871 | Minimum Number of Refueling Stops | Hard | Arrays | Sorting / Prefix / Scan | 41.4% | 25.0% | all |
| 1396 | Design Underground System | Medium | Design | Data Structure Design | 74.5% | 25.0% | all |
| 205 | Isomorphic Strings | Easy | Strings | Hashing / Sliding Window | 48.4% | 25.0% | all |
| 139 | Word Break | Medium | Strings; Dynamic Programming | Hashing / Sliding Window; State Transition | 49.5% | 25.0% | all |
| 564 | Find the Closest Palindrome | Hard | Strings | Hashing / Sliding Window | 32.0% | 25.0% | all |
| 37 | Sudoku Solver | Hard | Backtracking | Backtracking | 65.5% | 25.0% | all |
| 98 | Validate Binary Search Tree | Medium | Strings; Trees; Binary Search | Hashing / Sliding Window; DFS / BFS; Binary Search | 35.8% | 25.0% | all |
| 264 | Ugly Number II | Medium | Core DSA | Implementation / Reasoning | 49.6% | 25.0% | all |
| 540 | Single Element in a Sorted Array | Medium | Arrays | Sorting / Prefix / Scan | 59.3% | 25.0% | all |
| 412 | Fizz Buzz | Easy | Core DSA | Implementation / Reasoning | 75.5% | 25.0% | all |
| 93 | Restore IP Addresses | Medium | Core DSA | Implementation / Reasoning | 56.0% | 25.0% | all |
| 733 | Flood Fill | Easy | Core DSA | Implementation / Reasoning | 68.3% | 25.0% | all |
| 325 | Maximum Size Subarray Sum Equals k | Medium | Arrays | Sorting / Prefix / Scan | 50.9% | 25.0% | all |
| 125 | Valid Palindrome | Easy | Strings | Hashing / Sliding Window | 53.3% | 25.0% | all |
| 124 | Binary Tree Maximum Path Sum | Hard | Arrays; Trees | Sorting / Prefix / Scan; DFS / BFS | 42.3% | 25.0% | all |
| 909 | Snakes and Ladders | Medium | Core DSA | Implementation / Reasoning | 48.1% | 25.0% | all |
| 78 | Subsets | Medium | Backtracking | Backtracking | 82.3% | 25.0% | all |
| 171 | Excel Sheet Column Number | Easy | Core DSA | Implementation / Reasoning | 67.8% | 25.0% | all |
| 1752 | Check if Array Is Sorted and Rotated | Easy | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 57.2% | 25.0% | all |
| 918 | Maximum Sum Circular Subarray | Medium | Arrays | Sorting / Prefix / Scan | 50.2% | 25.0% | all |
| 1909 | Remove One Element to Make the Array Strictly Increasing | Easy | Arrays | Sorting / Prefix / Scan | 29.8% | 25.0% | all |
| 460 | LFU Cache | Hard | Design | Data Structure Design | 49.2% | 25.0% | all |
| 289 | Game of Life | Medium | Core DSA | Implementation / Reasoning | 72.6% | 25.0% | all |
| 59 | Spiral Matrix II | Medium | Arrays | Sorting / Prefix / Scan | 75.1% | 25.0% | all |
| 336 | Palindrome Pairs | Hard | Strings | Hashing / Sliding Window | 37.2% | 25.0% | all |
| 456 | 132 Pattern | Medium | Strings | Hashing / Sliding Window | 34.8% | 25.0% | all |
| 1838 | Frequency of the Most Frequent Element | Medium | Core DSA | Implementation / Reasoning | 44.8% | 25.0% | all |
| 2043 | Simple Bank System | Medium | Core DSA | Implementation / Reasoning | 69.7% | 25.0% | all |
| 227 | Basic Calculator II | Medium | Stack / Queue | Monotonic Stack / Simulation | 46.9% | 25.0% | all |
| 1910 | Remove All Occurrences of a Substring | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 78.5% | 25.0% | all |
| 112 | Path Sum | Easy | Arrays; Trees | Sorting / Prefix / Scan; DFS / BFS | 54.9% | 25.0% | all |
| 1448 | Count Good Nodes in Binary Tree | Medium | Trees | DFS / BFS | 73.9% | 25.0% | all |
| 653 | Two Sum IV - Input is a BST | Easy | Arrays; Trees | Sorting / Prefix / Scan; DFS / BFS; Two Pointers | 63.3% | 25.0% | all |
| 503 | Next Greater Element II | Medium | Stack / Queue | Monotonic Stack / Simulation | 68.4% | 25.0% | all |
| 779 | K-th Symbol in Grammar | Medium | Core DSA | Implementation / Reasoning | 48.3% | 25.0% | all |
| 208 | Implement Trie (Prefix Tree) | Medium | Trees | DFS / BFS | 69.5% | 25.0% | all |
| 2402 | Meeting Rooms III | Hard | Greedy | Greedy | 51.5% | 25.0% | all |
| 622 | Design Circular Queue | Medium | Stack / Queue; Design | Monotonic Stack / Simulation; Data Structure Design | 54.7% | 25.0% | all |
| 2734 | Lexicographically Smallest String After Substring Operation | Medium | Strings; Trees; Graphs | Hashing / Sliding Window; DFS / BFS; BFS / DFS / Topological Sort | 34.9% | 25.0% | all |
| 277 | Find the Celebrity | Medium | Core DSA | Implementation / Reasoning | 49.0% | 25.0% | all |
| 120 | Triangle | Medium | Core DSA | Implementation / Reasoning | 59.9% | 25.0% | all |
| 1091 | Shortest Path in Binary Matrix | Medium | Arrays | Sorting / Prefix / Scan | 51.5% | 25.0% | all |
| 815 | Bus Routes | Hard | Core DSA | Implementation / Reasoning | 47.3% | 25.0% | all |
| 225 | Implement Stack using Queues | Easy | Stack / Queue | Monotonic Stack / Simulation | 69.9% | 25.0% | all |