| 204 | Count Primes | — | Medium | ArrayMathEnumeration | 35% | |
| 479 | Largest Palindrome Product | — | Hard | MathEnumeration | 35% | |
| 816 | Ambiguous Coordinates | — | Medium | StringBacktrackingEnumeration | 56% | |
| 829 | Consecutive Numbers Sum | — | Hard | MathEnumeration | 42% | |
| 845 | Longest Mountain in Array | — | Medium | ArrayTwo PointersDynamic Programming | 41% | |
| 869 | Reordered Power of 2 | — | Medium | Hash TableMathSorting | 62% | |
| 906 | Super Palindromes | — | Hard | MathStringEnumeration | 39% | |
| 949 | Largest Time for Given Digits | — | Medium | ArrayStringBacktracking | 35% | |
| 970 | Powerful Integers | — | Medium | Hash TableMathEnumeration | 44% | |
| 1291 | Sequential Digits | — | Medium | Enumeration | 65% | |
| 1534 | Count Good Triplets | — | Easy | ArrayEnumeration | 85% | |
| 1566 | Detect Pattern of Length M Repeated K or More Times | — | Easy | ArrayEnumeration | 43% | |
| 1601 | Maximum Number of Achievable Transfer Requests | — | Hard | ArrayBacktrackingBit Manipulation | 64% | |
| 1617 | Count Subtrees With Max Distance Between Cities | — | Hard | Dynamic ProgrammingBit ManipulationTree | 66% | |
| 1620 | Coordinate With Maximum Network Quality | — | Medium | ArrayEnumeration | 38% | |
| 1625 | Lexicographically Smallest String After Applying Operations | — | Medium | StringDepth-First SearchBreadth-First Search | 65% | |
| 1638 | Count Substrings That Differ by One Character | — | Medium | Hash TableStringDynamic Programming | 72% | |
| 1863 | Sum of All Subset XOR Totals | — | Easy | ArrayMathBacktracking | 90% | |
| 1925 | Count Square Sum Triples | — | Easy | MathEnumeration | 69% | |
| 1952 | Three Divisors | — | Easy | MathEnumerationNumber Theory | 63% | |
| 1958 | Check if Move is Legal | — | Medium | ArrayMatrixEnumeration | 49% | |
| 1995 | Count Special Quadruplets | — | Easy | ArrayHash TableEnumeration | 63% | |
| 2014 | Longest Subsequence Repeated k Times | — | Hard | StringBacktrackingGreedy | 54% | |
| 2018 | Check if Word Can Be Placed In Crossword | — | Medium | ArrayMatrixEnumeration | 50% | |
| 2025 | Maximum Number of Ways to Partition an Array | — | Hard | ArrayHash TableCounting | 35% | |
| 2044 | Count Number of Maximum Bitwise-OR Subsetsread | — | Medium | ArrayBacktrackingBit Manipulation | 88% | |
| 2048 | Next Greater Numerically Balanced Number | — | Medium | Hash TableMathBacktracking | 49% | |
| 2081 | Sum of k-Mirror Numbers | — | Hard | MathEnumeration | 41% | |
| 2094 | Finding 3-Digit Even Numbers | — | Easy | ArrayHash TableSorting | 79% | |
| 2122 | Recover the Original Array | — | Hard | ArrayHash TableTwo Pointers | 40% | |
| 2151 | Maximum Good People Based on Statements | — | Hard | ArrayBacktrackingBit Manipulation | 51% | |
| 2162 | Minimum Cost to Set Cooking Time | — | Medium | MathEnumeration | 41% | |
| 2171 | Removing Minimum Number of Magic Beans | — | Medium | ArrayGreedySorting | 44% | |
| 2212 | Maximum Points in an Archery Competition | — | Medium | ArrayBacktrackingBit Manipulation | 50% | |
| 2232 | Minimize Result by Adding Parentheses to Expression | — | Medium | StringEnumeration | 67% | |
| 2234 | Maximum Total Beauty of the Gardens | — | Hard | ArrayTwo PointersBinary Search | 30% | |
| 2240 | Number of Ways to Buy Pens and Pencils | — | Medium | MathEnumeration | 56% | |
| 2242 | Maximum Score of a Node Sequence | — | Hard | ArrayGraphSorting | 39% | |
| 2249 | Count Lattice Points Inside a Circle | — | Medium | ArrayHash TableMath | 55% | |
| 2259 | Remove Digit From Number to Maximize Result | — | Easy | StringGreedyEnumeration | 47% | |
| 2261 | K Divisible Elements Subarrays | — | Medium | ArrayHash TableTrie | 54% | |
| 2306 | Naming a Company | — | Hard | ArrayHash TableString | 46% | |
| 2309 | Greatest English Letter in Upper and Lower Case | — | Easy | Hash TableStringEnumeration | 71% | |
| 2310 | Sum of Numbers With Units Digit K | — | Medium | MathDynamic ProgrammingGreedy | 27% | |
| 2367 | Number of Arithmetic Triplets | — | Easy | ArrayHash TableTwo Pointers | 85% | |
| 2397 | Maximum Rows Covered by Columnsread | — | Medium | ArrayBacktrackingBit Manipulation | 56% | |
| 2427 | Number of Common Factors | — | Easy | MathEnumerationNumber Theory | 79% | |
| 2437 | Number of Valid Clock Times | — | Easy | StringEnumeration | 47% | |
| 2440 | Create Components With Same Value | — | Hard | ArrayMathTree | 52% | |
| 2443 | Sum of Number and Its Reverse | — | Medium | MathEnumeration | 48% | |