Practice problems across 75+ categories
Practice problems frequently asked at Math • 596 problems | 150 Easy | 283 Medium | 161 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 91 | Count Connected Components in LCM Graph | Hard | ArrayHash TableMath |
| 92 | Count Days Spent Together | Easy | MathString |
| 93 | Count Distinct Numbers on Board | Easy | ArrayHash TableMath |
| 94 | Count Good Numbers | Medium | MathRecursion |
| 95 | Count Integers With Even Digit Sum | Easy | MathSimulation |
| 96 | Count K-Reducible Numbers Less Than N | Hard | MathStringDynamic Programming |
| 97 | Count K-Subsequences of a String With Maximum Beauty | Hard | Hash TableMathString |
| 98 | Count Largest Group | Easy | Hash TableMath |
| 99 | Count Lattice Points Inside a Circle | Medium | ArrayHash TableMath |
| 100 | Count Mentions Per User | Medium | ArrayMathSorting |
| 101 | Count Nice Pairs in an Array | Medium | ArrayHash TableMath |
| 102 | Count Number of Bad Pairs | Medium | ArrayHash TableMath |
| 103 | Count Number of Balanced Permutations | Hard | MathStringDynamic Programming |
| 104 | Count Number of Distinct Integers After Reverse Operations | Medium | ArrayHash TableMath |
| 105 | Count Number of Homogenous Substrings | Medium | MathString |
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