Yandex
120 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1493. Longest Subarray of 1's After Deleting One Element | Medium | 100% | TopicsArrayDynamic ProgrammingSliding Window |
| 228. Summary Ranges | Easy | 91.6% | TopicsArray |
| 849. Maximize Distance to Closest Person | Medium | 91.6% | TopicsArray |
| 3. Longest Substring Without Repeating Characters | Medium | 86.4% | TopicsHash TableStringSliding Window |
| 680. Valid Palindrome II | Easy | 83.8% | TopicsTwo PointersStringGreedy |
| Find K Closest Elements | Medium | 83.3% | TopicsArrayTwo PointersBinary SearchSliding WindowSortingHeap (Priority Queue) |
| 443. String Compression | Medium | 82.1% | TopicsTwo PointersString |
| 560. Subarray Sum Equals K | Medium | 79.5% | TopicsArrayHash TablePrefix Sum |
| 56. Merge Intervals | Medium | 78% | TopicsArraySortingQuicksort |
| 283. Move Zeroes | Easy | 72.9% | TopicsArrayTwo Pointers |
| Insert Delete GetRandom O(1) | Medium | 71.9% | TopicsArrayHash TableMathDesignRandomized |
| 3105. Longest Strictly Increasing or Strictly Decreasing Subarray | Easy | 71.9% | TopicsArray |
| 125. Valid Palindrome | Easy | 70.8% | TopicsTwo PointersString |
| 205. Isomorphic Strings | Easy | 70.8% | TopicsHash TableString |
| 5. Longest Palindromic Substring | Medium | 69.7% | TopicsTwo PointersStringDynamic ProgrammingManacher |
| Line Reflection | Medium | 69.7% | TopicsArrayHash TableMath |
| 1. Two Sum | Easy | 68.5% | TopicsArrayHash Table |
| One Edit Distance | Medium | 68.5% | TopicsTwo PointersString |
| 567. Permutation in String | Medium | 68.5% | TopicsHash TableTwo PointersStringSliding Window |
| 986. Interval List Intersections | Medium | 67.3% | TopicsArrayTwo PointersSweep Line |
| 2657. Find the Prefix Common Array of Two Arrays | Medium | 67.3% | TopicsArrayHash TableBit Manipulation |
| 438. Find All Anagrams in a String | Medium | 65.9% | TopicsHash TableStringSliding Window |
| 21. Merge Two Sorted Lists | Easy | 62.9% | TopicsLinked ListRecursion |
| 49. Group Anagrams | Medium | 62.9% | TopicsArrayHash TableStringSorting |
| 88. Merge Sorted Array | Easy | 62.9% | TopicsArrayTwo PointersSorting |
