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 itselfLinked lists, Two pointers
- Not startedEasyFind the middle in one passLinked lists, Two pointers
- Not startedEasyTurn the list aroundLinked lists
- Not startedEasyZip two sorted lists togetherLinked lists
- Not startedMediumA cache that forgets what you have not usedHash maps, Design, Linked lists
- Not startedMediumBreak the loop and leave the listLinked lists, Two pointers
- Not startedMediumDrop the nth node from the endLinked lists, Two pointers
- Not startedMediumHow many nodes the loop goes roundLinked lists, Two pointers
- Not startedMediumWhere the loop beginsLinked lists, Two pointers