Browse problems by topic and difficulty. 3,930 problems indexed.
| Title | Difficulty | ||
|---|---|---|---|
| Longest Balanced Subarray II | Hard | Solve |
| Lexicographically Smallest String After Reverse | Medium | Solve |
| Maximize Sum of Squares of Digits | Medium | Solve |
| Minimum Operations to Transform Array | Medium | Solve |
| Count Ways to Choose Coprime Integers from Rows | Hard | Solve |
| Remove Zeros in Decimal Representation | Easy | Solve |
| Maximum Alternating Sum of Squares | Medium | Solve |
| Stable Subarrays With Equal Boundary and Interior Sum | Medium | Solve |
| Count Distinct Subarrays Divisible by K in Sorted Array | Hard | Solve |
| Find K Pairs with Smallest Sums | Medium | Solve |
| Maximum Calories Burnt from Jumps | Medium | Solve |
| Find Missing Elements | Easy | Solve |
| Maximum Product of Three Elements After One Replacement | Medium | Solve |
| Minimum Time to Complete All Deliveries | Medium | Solve |
| Lexicographically Smallest Palindromic Permutation Greater Than Target | Hard | Solve |
| Lexicographically Smallest String After Reverse II | Hard | Solve |
| Minimum Moves to Equal Array Elements III | Easy | Solve |
| Count Subarrays With Majority Element I | Medium | Solve |
| Longest Non-Decreasing Subarray After Replacing at Most One Element | Medium | Solve |
| Count Subarrays With Majority Element II | Hard | Solve |
| Guess Number Higher or Lower | Easy | Solve |
| Minimum Distance Between Three Equal Elements I | Easy | Solve |
| Minimum Distance Between Three Equal Elements II | Medium | Solve |
| Maximum Path Score in a Grid | Medium | Solve |
| Maximize Cyclic Partition Score | Hard | Solve |