All problems
Linked lists problems
9 problems: 4 easy, 5 medium and 0 hard. Start at the top; each one assumes the ones above it.
- Not startedEasyDoes this list loop back on itselfTwo pointers, Linked lists
- Not startedEasyFind the middle in one passTwo pointers, Linked lists
- Not startedEasyTurn the list aroundLinked lists
- Not startedEasyZip two sorted lists togetherLinked lists
- Not startedMediumA cache that forgets what you have not usedLinked lists, Hash maps, Design
- Not startedMediumBreak the loop and leave the listTwo pointers, Linked lists
- Not startedMediumDrop the nth node from the endTwo pointers, Linked lists
- Not startedMediumHow many nodes the loop goes roundTwo pointers, Linked lists
- Not startedMediumWhere the loop beginsTwo pointers, Linked lists