Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1186 | Find X-Sum of All K-Long Subarrays I | Easy | ArrayHash TableSliding Window |
| 1187 | Find X-Sum of All K-Long Subarrays II | Hard | ArrayHash TableSliding Window |
| 1188 | Find X Value of Array I | Medium | ArrayMathDynamic Programming |
| 1189 | Find X Value of Array II | Hard | ArrayMathSegment Tree |
| 1190 | Find Xor-Beauty of Array | Medium | ArrayMathBit Manipulation |
| 1191 | Find XOR Sum of All Pairs Bitwise AND | Hard | ArrayMathBit Manipulation |
| 1192 | Finding 3-Digit Even Numbers | Easy | ArrayHash TableRecursion |
| 1193 | Finding MK Average | Hard | DesignQueueHeap (Priority Queue) |
| 1194 | Finding Pairs With a Certain Sum | Medium | ArrayHash TableDesign |
| 1195 | Finding the Number of Visible Mountains | Medium | ArrayStackSorting |
| 1196 | Finding the Topic of Each Post | Hard | Database |
| 1197 | Finding the Users Active Minutes | Medium | ArrayHash Table |
| 1198 | First and Last Call On the Same Day | Hard | Database |
| 1199 | First Bad Version | Easy | Binary SearchInteractive |
| 1200 | First Completely Painted Row or Column | Medium | ArrayHash TableMatrix |
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