| 2771 | | Medium | ArrayDynamic Programming |
| 124 | | Hard | Dynamic ProgrammingTree |
| 740 | | Medium | ArrayHash Table |
| 1197 | | Medium | Breadth-First Search |
| 647 | | Medium | Two PointersString |
| 239 | | Hard | ArrayQueue |
| 2484 | | Hard | StringDynamic Programming |
| 2918 | | Medium | ArrayGreedy |
| 460 | | Hard | Hash TableLinked List |
| 2702 | | Hard | ArrayBinary Search |
| 2533 | | Medium | Dynamic Programming |
| 3186 | | Medium | ArrayHash Table |
| 718 | | Medium | ArrayBinary Search |
| 146 | | Medium | Hash TableLinked List |
| 2361 | | Hard | ArrayDynamic Programming |
| 1515 | | Hard | ArrayMath |
| 399 | | Medium | ArrayString |
| 2661 | | Medium | ArrayHash Table |
| 1048 | | Medium | ArrayHash Table |
| 56 | | Medium | ArraySorting |
| 121 | | Easy | ArrayDynamic Programming |
| 297 | | Hard | StringTree |
| 287 | | Medium | ArrayTwo Pointers |
| 150 | | Medium | ArrayMath |
| 380 | | Medium | ArrayHash Table |
| 37 | | Hard | ArrayHash Table |
| 2958 | | Medium | ArrayHash Table |
| 2050 | | Hard | ArrayDynamic Programming |
| 200 | | Medium | ArrayDepth-First Search |
| 765 | | Hard | GreedyDepth-First Search |
| 295 | | Hard | Two PointersDesign |
| 49 | | Medium | ArrayHash Table |
| 98 | | Medium | TreeDepth-First Search |
| 1229 | | Medium | ArrayTwo Pointers |
| 759 | | Hard | ArrayLine Sweep |
| 23 | | Hard | Linked ListDivide and Conquer |
| 46 | | Medium | ArrayBacktracking |
| 489 | | Hard | BacktrackingInteractive |
| 103 | | Medium | TreeBreadth-First Search |
| 642 | | Hard | StringDepth-First Search |
| 51 | | Hard | ArrayBacktracking |
| 412 | | Easy | MathString |
| 122 | | Medium | ArrayDynamic Programming |
| 10 | | Hard | StringDynamic Programming |
| 123 | | Hard | ArrayDynamic Programming |
| 1268 | | Medium | ArrayString |
| 39 | | Medium | ArrayBacktracking |
| 622 | | Medium | ArrayLinked List |
| 42 | | Hard | ArrayTwo Pointers |
| 79 | | Medium | ArrayString |
| 631 | | Hard | ArrayHash Table |
| 70 | | Easy | MathDynamic Programming |
| 17 | | Medium | Hash TableString |
| 69 | | Easy | MathBinary Search |
| 208 | | Medium | Hash TableString |
| 346 | | Easy | ArrayDesign |
| 1203 | | Hard | Depth-First SearchBreadth-First Search |
| 1670 | | Medium | ArrayLinked List |
| 4 | | Hard | ArrayBinary Search |
| 1606 | | Hard | ArrayGreedy |
| 329 | | Hard | ArrayDynamic Programming |
| 198 | | Medium | ArrayDynamic Programming |
| 221 | | Medium | ArrayDynamic Programming |
| 15 | | Medium | ArrayTwo Pointers |
| 279 | | Medium | MathDynamic Programming |
| 310 | | Medium | Depth-First SearchBreadth-First Search |
| 269 | | Hard | ArrayString |
| 2466 | | Medium | Dynamic Programming |
| 782 | | Hard | ArrayMath |
| 714 | | Medium | ArrayDynamic Programming |
| 752 | | Medium | ArrayHash Table |
| 875 | | Medium | ArrayBinary Search |
| 117 | | Medium | Linked ListTree |
| 149 | | Hard | ArrayHash Table |
| 12 | | Medium | Hash TableMath |
| 47 | | Medium | ArrayBacktracking |
| 50 | | Medium | MathRecursion |
| 71 | | Medium | StringStack |
| 11 | | Medium | ArrayTwo Pointers |
| 994 | | Medium | ArrayBreadth-First Search |
| 300 | | Medium | ArrayBinary Search |
| 1632 | | Hard | ArrayUnion Find |
| 256 | | Medium | ArrayDynamic Programming |
| 974 | | Medium | ArrayHash Table |
| 240 | | Medium | ArrayBinary Search |
| 188 | | Hard | ArrayDynamic Programming |
| 381 | | Hard | ArrayHash Table |
| 126 | | Hard | Hash TableString |
| 815 | | Hard | ArrayHash Table |
| 207 | | Medium | Depth-First SearchBreadth-First Search |
| 767 | | Medium | Hash TableString |
| 1143 | | Medium | StringDynamic Programming |
| 1884 | | Medium | MathDynamic Programming |
| 210 | | Medium | Depth-First SearchBreadth-First Search |
| 116 | | Medium | Linked ListTree |
| 688 | | Medium | Dynamic Programming |
| 735 | | Medium | ArrayStack |
| 218 | | Hard | ArrayDivide and Conquer |
| 224 | | Hard | MathString |
| 2044 | | Medium | ArrayBacktracking |
