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Tcs DSA Interview Questions
216 curated coding interview questions directly asked in Tcs technical rounds, sorted by frequency with recency and difficulty diagnostics.
216
Total Questions
95 (44%)
Easy Problems
100 (46%)
Medium Problems
21 (10%)
Hard Problems
🔥 Most Tested Topics:
Arrays (78)Core DSA (68)Strings (34)Trees (15)Linked List (13)
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Showing top 200 of 216 questions. View all 216 in the interactive tracker.
| ID | Problem | Difficulty | Topic | Pattern | Acceptance | Frequency | Recency |
|---|---|---|---|---|---|---|---|
| 766 | Toeplitz Matrix | Easy | Arrays | Sorting / Prefix / Scan | 69.7% | 100.0% | 30d |
| 53 | Maximum Subarray | Medium | Arrays | Sorting / Prefix / Scan | 53.3% | 100.0% | 30d |
| 54 | Spiral Matrix | Medium | Arrays | Sorting / Prefix / Scan | 56.8% | 100.0% | 30d |
| 283 | Move Zeroes | Easy | Core DSA | Two Pointers | 63.8% | 100.0% | 3m |
| 152 | Maximum Product Subarray | Medium | Arrays | Sorting / Prefix / Scan | 36.4% | 100.0% | 3m |
| 5 | Longest Palindromic Substring | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 37.8% | 100.0% | 6m |
| 2993 | Friday Purchases I | Medium | Core DSA | Implementation / Reasoning | 81.1% | 100.0% | all |
| 1 | Two Sum | Easy | Arrays | Sorting / Prefix / Scan; Two Pointers | 57.5% | 87.5% | 3m |
| 28 | Find the Index of the First Occurrence in a String | Easy | Strings | Hashing / Sliding Window | 46.7% | 75.0% | 3m |
| 14 | Longest Common Prefix | Easy | Core DSA | Implementation / Reasoning | 47.6% | 75.0% | 3m |
| 242 | Valid Anagram | Easy | Strings | Hashing / Sliding Window | 68.1% | 75.0% | 3m |
| 621 | Task Scheduler | Medium | Greedy | Greedy | 63.1% | 75.0% | 3m |
| 118 | Pascal's Triangle | Easy | Core DSA | Implementation / Reasoning | 78.9% | 75.0% | 3m |
| 496 | Next Greater Element I | Easy | Stack / Queue | Monotonic Stack / Simulation | 76.1% | 75.0% | 3m |
| 153 | Find Minimum in Rotated Sorted Array | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 54.7% | 75.0% | 3m |
| 26 | Remove Duplicates from Sorted Array | Easy | Arrays | Sorting / Prefix / Scan; Two Pointers | 62.8% | 75.0% | 3m |
| 3 | Longest Substring Without Repeating Characters | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS; Sliding Window | 39.1% | 75.0% | 3m |
| 9 | Palindrome Number | Easy | Strings | Hashing / Sliding Window | 60.6% | 75.0% | 6m |
| 312 | Burst Balloons | Hard | Core DSA | Implementation / Reasoning | 63.5% | 75.0% | 6m |
| 125 | Valid Palindrome | Easy | Strings | Hashing / Sliding Window | 53.3% | 75.0% | 6m |
| 560 | Subarray Sum Equals K | Medium | Arrays | Sorting / Prefix / Scan | 47.3% | 75.0% | 6m |
| 2 | Add Two Numbers | Medium | Core DSA | Implementation / Reasoning | 48.5% | 75.0% | 6m |
| 344 | Reverse String | Easy | Strings | Hashing / Sliding Window | 80.8% | 75.0% | 6m |
| 189 | Rotate Array | Medium | Arrays | Sorting / Prefix / Scan | 44.9% | 75.0% | 6m |
| 540 | Single Element in a Sorted Array | Medium | Arrays | Sorting / Prefix / Scan | 59.3% | 75.0% | 6m |
| 88 | Merge Sorted Array | Easy | Arrays | Sorting / Prefix / Scan | 54.9% | 75.0% | 6m |
| 75 | Sort Colors | Medium | Arrays | Sorting / Prefix / Scan | 69.6% | 75.0% | 6m |
| 4 | Median of Two Sorted Arrays | Hard | Arrays; Heap | Sorting / Prefix / Scan; Priority Queue | 46.6% | 62.5% | 6m |
| 33 | Search in Rotated Sorted Array | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 44.9% | 62.5% | 6m |
| 8 | String to Integer (atoi) | Medium | Strings | Hashing / Sliding Window | 21.0% | 62.5% | 6m |
| 15 | 3Sum | Medium | Arrays | Sorting / Prefix / Scan | 39.1% | 62.5% | 6m |
| 977 | Squares of a Sorted Array | Easy | Arrays | Sorting / Prefix / Scan | 73.8% | 62.5% | 6m |
| 516 | Longest Palindromic Subsequence | Medium | Core DSA | Implementation / Reasoning | 65.4% | 62.5% | 6m |
| 182 | Duplicate Emails | Easy | Arrays | Sorting / Prefix / Scan | 73.8% | 62.5% | 6m |
| 136 | Single Number | Easy | Core DSA | Implementation / Reasoning | 77.7% | 62.5% | 6m |
| 17 | Letter Combinations of a Phone Number | Medium | Strings; Backtracking | Hashing / Sliding Window; Backtracking | 66.1% | 62.5% | 6m |
| 167 | Two Sum II - Input Array Is Sorted | Medium | Arrays | Sorting / Prefix / Scan; Two Pointers | 65.1% | 62.5% | 6m |
| 1823 | Find the Winner of the Circular Game | Medium | Core DSA | Implementation / Reasoning | 82.2% | 62.5% | 6m |
| 176 | Second Highest Salary | Medium | Core DSA | Implementation / Reasoning | 47.0% | 62.5% | 6m |
| 11 | Container With Most Water | Medium | Core DSA | Two Pointers | 60.0% | 62.5% | 6m |
| 238 | Product of Array Except Self | Medium | Arrays | Sorting / Prefix / Scan | 68.9% | 62.5% | 6m |
| 27 | Remove Element | Easy | Core DSA | Implementation / Reasoning | 61.8% | 62.5% | 6m |
| 90 | Subsets II | Medium | Backtracking | Backtracking | 61.3% | 62.5% | 6m |
| 1021 | Remove Outermost Parentheses | Easy | Strings | Hashing / Sliding Window | 87.1% | 62.5% | 6m |
| 1581 | Customer Who Visited but Did Not Make Any Transactions | Easy | Core DSA | Implementation / Reasoning | 67.7% | 62.5% | 6m |
| 181 | Employees Earning More Than Their Managers | Easy | Core DSA | Implementation / Reasoning | 73.2% | 62.5% | 6m |
| 34 | Find First and Last Position of Element in Sorted Array | Medium | Arrays | Sorting / Prefix / Scan | 48.9% | 62.5% | 6m |
| 198 | House Robber | Medium | Dynamic Programming | State Transition | 53.2% | 62.5% | 6m |
| 121 | Best Time to Buy and Sell Stock | Easy | Core DSA | Implementation / Reasoning | 56.8% | 62.5% | 6m |
| 20 | Valid Parentheses | Easy | Strings | Hashing / Sliding Window | 44.2% | 62.5% | all |
| 169 | Majority Element | Easy | Core DSA | Implementation / Reasoning | 66.3% | 62.5% | all |
| 2423 | Remove Letter To Equalize Frequency | Easy | Strings | Hashing / Sliding Window | 19.4% | 62.5% | all |
| 2520 | Count the Digits That Divide a Number | Easy | Core DSA | Implementation / Reasoning | 85.9% | 62.5% | all |
| 1800 | Maximum Ascending Subarray Sum | Easy | Arrays | Sorting / Prefix / Scan | 66.3% | 62.5% | all |
| 7 | Reverse Integer | Medium | Core DSA | Implementation / Reasoning | 31.9% | 50.0% | all |
| 13 | Roman to Integer | Easy | Strings | Hashing / Sliding Window | 66.6% | 50.0% | all |
| 42 | Trapping Rain Water | Hard | Core DSA | Two Pointers | 67.4% | 50.0% | all |
| 50 | Pow(x, n) | Medium | Core DSA | Implementation / Reasoning | 38.7% | 50.0% | all |
| 55 | Jump Game | Medium | Greedy | Greedy | 40.9% | 50.0% | all |
| 62 | Unique Paths | Medium | Core DSA | Implementation / Reasoning | 66.8% | 50.0% | all |
| 66 | Plus One | Easy | Core DSA | Implementation / Reasoning | 50.0% | 50.0% | all |
| 70 | Climbing Stairs | Easy | Dynamic Programming | State Transition | 54.1% | 50.0% | all |
| 217 | Contains Duplicate | Easy | Arrays | Sorting / Prefix / Scan | 64.4% | 50.0% | all |
| 268 | Missing Number | Easy | Arrays | Sorting / Prefix / Scan | 72.0% | 50.0% | all |
| 67 | Add Binary | Easy | Core DSA | Implementation / Reasoning | 58.1% | 50.0% | all |
| 2481 | Minimum Cuts to Divide a Circle | Easy | Arrays | Sorting / Prefix / Scan | 56.2% | 50.0% | all |
| 898 | Bitwise ORs of Subarrays | Medium | Arrays | Sorting / Prefix / Scan | 56.9% | 50.0% | all |
| 509 | Fibonacci Number | Easy | Core DSA | Implementation / Reasoning | 74.1% | 50.0% | all |
| 3065 | Minimum Operations to Exceed Threshold Value I | Easy | Arrays | Sorting / Prefix / Scan | 86.8% | 50.0% | all |
| 3066 | Minimum Operations to Exceed Threshold Value II | Medium | Arrays | Sorting / Prefix / Scan | 45.8% | 50.0% | all |
| 1745 | Palindrome Partitioning IV | Hard | Strings; Dynamic Programming | Hashing / Sliding Window; State Transition | 45.5% | 50.0% | all |
| 1752 | Check if Array Is Sorted and Rotated | Easy | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 57.3% | 50.0% | all |
| 51 | N-Queens | Hard | Backtracking | Backtracking | 75.5% | 50.0% | all |
| 219 | Contains Duplicate II | Easy | Arrays | Sorting / Prefix / Scan | 51.3% | 50.0% | all |
| 3417 | Zigzag Grid Traversal With Skip | Easy | Core DSA | Implementation / Reasoning | 65.3% | 50.0% | all |
| 56 | Merge Intervals | Medium | Arrays | Sorting / Prefix / Scan | 51.8% | 50.0% | all |
| 18 | 4Sum | Medium | Arrays | Sorting / Prefix / Scan | 40.6% | 37.5% | all |
| 21 | Merge Two Sorted Lists | Easy | Arrays; Linked List | Sorting / Prefix / Scan; Two Pointers | 68.3% | 37.5% | all |
| 22 | Generate Parentheses | Medium | Strings | Hashing / Sliding Window | 78.7% | 37.5% | all |
| 31 | Next Permutation | Medium | Backtracking | Backtracking | 45.3% | 37.5% | all |
| 58 | Length of Last Word | Easy | Strings | Hashing / Sliding Window | 58.8% | 37.5% | all |
| 73 | Set Matrix Zeroes | Medium | Arrays | Sorting / Prefix / Scan | 62.9% | 37.5% | all |
| 69 | Sqrt(x) | Easy | Binary Search | Binary Search | 41.8% | 37.5% | all |
| 78 | Subsets | Medium | Backtracking | Backtracking | 82.3% | 37.5% | all |
| 122 | Best Time to Buy and Sell Stock II | Medium | Core DSA | Implementation / Reasoning | 71.1% | 37.5% | all |
| 128 | Longest Consecutive Sequence | Medium | Core DSA | Implementation / Reasoning | 47.1% | 37.5% | all |
| 151 | Reverse Words in a String | Medium | Strings | Hashing / Sliding Window | 56.4% | 37.5% | all |
| 179 | Largest Number | Medium | Core DSA | Implementation / Reasoning | 43.1% | 37.5% | all |
| 185 | Department Top Three Salaries | Hard | Core DSA | Implementation / Reasoning | 60.5% | 37.5% | all |
| 202 | Happy Number | Easy | Core DSA | Implementation / Reasoning | 59.7% | 37.5% | all |
| 204 | Count Primes | Medium | Core DSA | Implementation / Reasoning | 36.1% | 37.5% | all |
| 239 | Sliding Window Maximum | Hard | Arrays | Sorting / Prefix / Scan; Sliding Window | 48.8% | 37.5% | all |
| 387 | First Unique Character in a String | Easy | Strings | Hashing / Sliding Window | 65.5% | 37.5% | all |
| 412 | Fizz Buzz | Easy | Core DSA | Implementation / Reasoning | 75.5% | 37.5% | all |
| 532 | K-diff Pairs in an Array | Medium | Arrays | Sorting / Prefix / Scan | 45.9% | 37.5% | all |
| 584 | Find Customer Referee | Easy | Core DSA | Implementation / Reasoning | 72.9% | 37.5% | all |
| 1148 | Article Views I | Easy | Core DSA | Implementation / Reasoning | 76.6% | 37.5% | all |
| 912 | Sort an Array | Medium | Arrays | Sorting / Prefix / Scan | 55.9% | 37.5% | all |
| 543 | Diameter of Binary Tree | Easy | Trees | DFS / BFS | 65.5% | 37.5% | all |
| 287 | Find the Duplicate Number | Medium | Arrays | Sorting / Prefix / Scan | 64.3% | 37.5% | all |
| 35 | Search Insert Position | Easy | Binary Search | Binary Search | 51.3% | 37.5% | all |
| 1757 | Recyclable and Low Fat Products | Easy | Arrays | Sorting / Prefix / Scan | 88.6% | 37.5% | all |
| 85 | Maximal Rectangle | Hard | Core DSA | Implementation / Reasoning | 58.8% | 37.5% | all |
| 485 | Max Consecutive Ones | Easy | Core DSA | Implementation / Reasoning | 65.2% | 37.5% | all |
| 416 | Partition Equal Subset Sum | Medium | Arrays; Dynamic Programming | Sorting / Prefix / Scan; State Transition | 49.5% | 37.5% | all |
| 1075 | Project Employees I | Easy | Core DSA | Implementation / Reasoning | 66.8% | 37.5% | all |
| 805 | Split Array With Same Average | Hard | Arrays | Sorting / Prefix / Scan | 27.0% | 37.5% | all |
| 2006 | Count Number of Pairs With Absolute Difference K | Easy | Core DSA | Implementation / Reasoning | 85.4% | 37.5% | all |
| 49 | Group Anagrams | Medium | Strings | Hashing / Sliding Window | 72.6% | 37.5% | all |
| 1512 | Number of Good Pairs | Easy | Core DSA | Implementation / Reasoning | 89.8% | 37.5% | all |
| 45 | Jump Game II | Medium | Greedy | Greedy | 42.9% | 37.5% | all |
| 124 | Binary Tree Maximum Path Sum | Hard | Arrays; Trees | Sorting / Prefix / Scan; DFS / BFS | 42.3% | 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 |
| 141 | Linked List Cycle | Easy | Linked List | Two Pointers | 54.3% | 37.5% | all |
| 19 | Remove Nth Node From End of List | Medium | Trees; Linked List | DFS / BFS; Two Pointers | 51.6% | 37.5% | all |
| 956 | Tallest Billboard | Hard | Core DSA | Implementation / Reasoning | 51.9% | 37.5% | all |
| 263 | Ugly Number | Easy | Core DSA | Implementation / Reasoning | 43.5% | 37.5% | all |
| 628 | Maximum Product of Three Numbers | Easy | Arrays | Sorting / Prefix / Scan | 45.9% | 37.5% | all |
| 155 | Min Stack | Medium | Stack / Queue | Monotonic Stack / Simulation | 58.2% | 37.5% | all |
| 875 | Koko Eating Bananas | Medium | Binary Search | Binary Search | 50.0% | 37.5% | all |
| 876 | Middle of the Linked List | Easy | Linked List | Two Pointers | 81.8% | 37.5% | all |
| 1125 | Smallest Sufficient Team | Hard | Core DSA | Implementation / Reasoning | 55.6% | 37.5% | all |
| 462 | Minimum Moves to Equal Array Elements II | Medium | Arrays | Sorting / Prefix / Scan | 61.9% | 37.5% | all |
| 297 | Serialize and Deserialize Binary Tree | Hard | Trees; Design | DFS / BFS; Data Structure Design | 60.8% | 37.5% | all |
| 146 | LRU Cache | Medium | Design | Data Structure Design | 47.4% | 37.5% | all |
| 643 | Maximum Average Subarray I | Easy | Arrays | Sorting / Prefix / Scan | 47.8% | 37.5% | all |
| 2095 | Delete the Middle Node of a Linked List | Medium | Trees; Linked List | DFS / BFS; Two Pointers | 59.6% | 37.5% | all |
| 414 | Third Maximum Number | Easy | Arrays | Sorting / Prefix / Scan | 39.4% | 37.5% | all |
| 41 | First Missing Positive | Hard | Arrays | Sorting / Prefix / Scan | 42.9% | 37.5% | all |
| 2099 | Find Subsequence of Length K With the Largest Sum | Easy | Arrays | Sorting / Prefix / Scan | 57.4% | 37.5% | all |
| 81 | Search in Rotated Sorted Array II | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 40.1% | 37.5% | all |
| 1068 | Product Sales Analysis I | Easy | Arrays | Sorting / Prefix / Scan | 85.8% | 37.5% | all |
| 1493 | Longest Subarray of 1's After Deleting One Element | Medium | Arrays | Sorting / Prefix / Scan | 71.2% | 37.5% | all |
| 1518 | Water Bottles | Easy | Core DSA | Implementation / Reasoning | 72.6% | 37.5% | all |
| 455 | Assign Cookies | Easy | Core DSA | Implementation / Reasoning | 55.0% | 37.5% | all |
| 303 | Range Sum Query - Immutable | Easy | Arrays | Sorting / Prefix / Scan | 72.2% | 37.5% | all |
| 80 | Remove Duplicates from Sorted Array II | Medium | Arrays | Sorting / Prefix / Scan; Two Pointers | 64.7% | 25.0% | all |
| 84 | Largest Rectangle in Histogram | Hard | Core DSA | Implementation / Reasoning | 49.9% | 25.0% | all |
| 206 | Reverse Linked List | Easy | Linked List | Two Pointers | 80.6% | 25.0% | all |
| 231 | Power of Two | Easy | Core DSA | Implementation / Reasoning | 50.1% | 25.0% | all |
| 349 | Intersection of Two Arrays | Easy | Arrays | Sorting / Prefix / Scan | 77.8% | 25.0% | all |
| 577 | Employee Bonus | Easy | Core DSA | Implementation / Reasoning | 77.4% | 25.0% | all |
| 595 | Big Countries | Easy | Trees | DFS / BFS | 68.5% | 25.0% | all |
| 704 | Binary Search | Easy | Binary Search | Binary Search | 60.9% | 25.0% | all |
| 852 | Peak Index in a Mountain Array | Medium | Arrays; Binary Search | Sorting / Prefix / Scan; Binary Search | 66.8% | 25.0% | all |
| 1636 | Sort Array by Increasing Frequency | Easy | Arrays | Sorting / Prefix / Scan | 80.8% | 25.0% | all |
| 3190 | Find Minimum Operations to Make All Elements Divisible by Three | Easy | Arrays | Sorting / Prefix / Scan | 90.8% | 25.0% | all |
| 63 | Unique Paths II | Medium | Core DSA | Implementation / Reasoning | 44.5% | 25.0% | all |
| 1492 | The kth Factor of n | Medium | Heap | Priority Queue | 70.4% | 25.0% | all |
| 273 | Integer to English Words | Hard | Strings | Hashing / Sliding Window | 35.0% | 25.0% | all |
| 196 | Delete Duplicate Emails | Easy | Arrays | Sorting / Prefix / Scan | 66.0% | 25.0% | all |
| 162 | Find Peak Element | Medium | Binary Search | Binary Search | 47.0% | 25.0% | all |
| 1025 | Divisor Game | Easy | Core DSA | Implementation / Reasoning | 71.9% | 25.0% | all |
| 670 | Maximum Swap | Medium | Arrays | Sorting / Prefix / Scan | 52.0% | 25.0% | all |
| 229 | Majority Element II | Medium | Core DSA | Implementation / Reasoning | 56.2% | 25.0% | all |
| 3163 | String Compression III | Medium | Strings | Hashing / Sliding Window | 67.1% | 25.0% | all |
| 1455 | Check If a Word Occurs As a Prefix of Any Word in a Sentence | Easy | Strings | Hashing / Sliding Window | 68.8% | 25.0% | all |
| 2461 | Maximum Sum of Distinct Subarrays With Length K | Medium | Arrays | Sorting / Prefix / Scan | 43.0% | 25.0% | all |
| 374 | Guess Number Higher or Lower | Easy | Core DSA | Implementation / Reasoning | 57.6% | 25.0% | all |
| 1480 | Running Sum of 1d Array | Easy | Arrays | Sorting / Prefix / Scan | 86.9% | 25.0% | all |
| 1368 | Minimum Cost to Make at Least One Valid Path in a Grid | Hard | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 71.0% | 25.0% | all |
| 1378 | Replace Employee ID With The Unique Identifier | Easy | Core DSA | Implementation / Reasoning | 83.5% | 25.0% | all |
| 567 | Permutation in String | Medium | Strings; Backtracking | Hashing / Sliding Window; Sliding Window; Backtracking | 48.9% | 25.0% | all |
| 1497 | Check If Array Pairs Are Divisible by k | Medium | Arrays | Sorting / Prefix / Scan | 46.2% | 25.0% | all |
| 48 | Rotate Image | Medium | Arrays | Sorting / Prefix / Scan | 80.1% | 25.0% | all |
| 658 | Find K Closest Elements | Medium | Core DSA | Implementation / Reasoning | 49.7% | 25.0% | all |
| 442 | Find All Duplicates in an Array | Medium | Arrays | Sorting / Prefix / Scan | 76.9% | 25.0% | all |
| 2563 | Count the Number of Fair Pairs | Medium | Core DSA | Implementation / Reasoning | 52.7% | 25.0% | all |
| 2703 | Return Length of Arguments Passed | Easy | Core DSA | Implementation / Reasoning | 94.5% | 25.0% | all |
| 1910 | Remove All Occurrences of a Substring | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 78.5% | 25.0% | all |
| 459 | Repeated Substring Pattern | Easy | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 48.2% | 25.0% | all |
| 3330 | Find the Original Typed String I | Easy | Strings | Hashing / Sliding Window | 72.0% | 25.0% | all |
| 164 | Maximum Gap | Medium | Arrays | Sorting / Prefix / Scan | 52.1% | 25.0% | all |
| 1751 | Maximum Number of Events That Can Be Attended II | Hard | Arrays | Sorting / Prefix / Scan | 63.5% | 25.0% | all |
| 328 | Odd Even Linked List | Medium | Linked List | Two Pointers | 62.5% | 25.0% | all |
| 109 | Convert Sorted List to Binary Search Tree | Medium | Arrays; Trees; Linked List; Binary Search | Sorting / Prefix / Scan; DFS / BFS; Two Pointers; Binary Search | 66.6% | 25.0% | all |
| 713 | Subarray Product Less Than K | Medium | Arrays | Sorting / Prefix / Scan | 54.3% | 25.0% | all |
| 3136 | Valid Word | Easy | Strings | Hashing / Sliding Window | 50.9% | 25.0% | all |
| 1614 | Maximum Nesting Depth of the Parentheses | Easy | Arrays; Strings | Sorting / Prefix / Scan; Hashing / Sliding Window | 84.9% | 25.0% | all |
| 142 | Linked List Cycle II | Medium | Linked List | Two Pointers | 57.9% | 25.0% | all |
| 495 | Teemo Attacking | Easy | Core DSA | Implementation / Reasoning | 57.7% | 25.0% | all |
| 979 | Distribute Coins in Binary Tree | Medium | Trees; Dynamic Programming | DFS / BFS; State Transition | 77.3% | 25.0% | all |
| 209 | Minimum Size Subarray Sum | Medium | Arrays | Sorting / Prefix / Scan | 51.7% | 25.0% | all |
| 94 | Binary Tree Inorder Traversal | Easy | Trees | DFS / BFS | 80.1% | 25.0% | all |
| 1015 | Smallest Integer Divisible by K | Medium | Core DSA | Implementation / Reasoning | 54.3% | 25.0% | all |
| 184 | Department Highest Salary | Medium | Core DSA | Implementation / Reasoning | 58.1% | 25.0% | all |
| 1365 | How Many Numbers Are Smaller Than the Current Number | Easy | Core DSA | Implementation / Reasoning | 87.4% | 25.0% | all |
| 143 | Reorder List | Medium | Linked List | Two Pointers | 65.3% | 25.0% | all |
| 319 | Bulb Switcher | Medium | Core DSA | Implementation / Reasoning | 55.9% | 25.0% | all |
| 10 | Regular Expression Matching | Hard | Core DSA | Implementation / Reasoning | 31.0% | 25.0% | all |
| 570 | Managers with at Least 5 Direct Reports | Medium | Core DSA | Implementation / Reasoning | 49.0% | 25.0% | all |
| 350 | Intersection of Two Arrays II | Easy | Arrays | Sorting / Prefix / Scan | 59.9% | 25.0% | all |
| 2054 | Two Best Non-Overlapping Events | Medium | Greedy | Greedy | 64.0% | 25.0% | all |
| 994 | Rotting Oranges | Medium | Core DSA | Implementation / Reasoning | 58.7% | 25.0% | all |
| 435 | Non-overlapping Intervals | Medium | Arrays; Greedy | Sorting / Prefix / Scan; Greedy | 57.1% | 25.0% | all |
| 83 | Remove Duplicates from Sorted List | Easy | Arrays; Linked List | Sorting / Prefix / Scan; Two Pointers | 56.7% | 25.0% | all |
| 3714 | Longest Balanced Substring II | Medium | Strings; Trees | Hashing / Sliding Window; DFS / BFS | 41.9% | 25.0% | all |
| 38 | Count and Say | Medium | Core DSA | Implementation / Reasoning | 62.9% | 25.0% | all |
| 12 | Integer to Roman | Medium | Strings | Hashing / Sliding Window | 71.0% | 25.0% | all |
| 200 | Number of Islands | Medium | Graphs | BFS / DFS / Topological Sort | 64.4% | 25.0% | all |