Practice problems across 75+ categories
Practice problems frequently asked at Enumeration • 123 problems | 27 Easy | 61 Medium | 35 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 106 | Reschedule Meetings for Maximum Free Time II | Medium | ArrayGreedyEnumeration |
| 107 | Sequential Digits | Medium | Enumeration |
| 108 | Shortest String That Contains Three Strings | Medium | StringGreedyEnumeration |
| 109 | Similar RGB Color | Easy | MathStringEnumeration |
| 110 | Smallest Divisible Digit Product I | Easy | MathEnumeration |
| 111 | Smallest Greater Multiple Made of Two Digits | Medium | MathEnumeration |
| 112 | Smallest Substring With Identical Characters I | Hard | ArrayBinary SearchEnumeration |
| 113 | Split Message Based on Limit | Hard | StringBinary SearchEnumeration |
| 114 | Splitting a String Into Descending Consecutive Values | Medium | StringBacktrackingEnumeration |
| 115 | Sum of All Subset XOR Totals | Easy | ArrayMathBacktracking |
| 116 | Sum of Imbalance Numbers of All Subarrays | Hard | ArrayHash TableEnumeration |
| 117 | Sum of k-Mirror Numbers | Hard | MathEnumeration |
| 118 | Sum of Number and Its Reverse | Medium | MathEnumeration |
| 119 | Sum of Numbers With Units Digit K | Medium | MathDynamic ProgrammingGreedy |
| 120 | Sum of Squares of Special Elements | Easy | ArrayEnumeration |
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