#linked lists

LFU cache
CodingxAI
▲ 00 solutions
LRU cache where each item counts by its quantity
CodingxAI
▲ 00 solutions
Flatten a linked list with side branches into one doubly linked list
CodingTesla
▲ 00 solutions
Streaming top-K frequent elements with O(1) updates
CodingNvidia
▲ 00 solutions
Follow one-way links to the endpoint or the last node before a loop
CodingOpenAI
▲ 00 solutions
Reverse nodes in k-group
CodingMicrosoft
▲ 00 solutions
Palindrome linked list without modifying the list
CodingMicrosoft
▲ 00 solutions
Compare two linked lists of string chunks
CodingMeta
▲ 00 solutions
Nth node from the end of a linked list
CodingMeta
▲ 00 solutions
Reverse a linked list between nodes with equal values
CodingMeta
▲ 00 solutions
Copy list with random pointer
CodingMetaMicrosoftSnowflake
▲ 00 solutions
Insert into a sorted circular linked list
CodingMeta
▲ 00 solutions
Populate next right pointers in each node
CodingMeta
▲ 00 solutions
Merge k sorted lists
CodingMeta
▲ 00 solutions
Merge two sorted linked lists
CodingGoogleMeta
▲ 00 solutions
Add two big integers stored as digit lists
CodingGoogle
▲ 00 solutions
Editable sequence with a marker
CodingGoogle
▲ 00 solutions
Intersection of two linked lists that may have cycles
CodingAirbnb
▲ 00 solutions
Copy a linked list with random pointers
CodingAppleMeta
▲ 00 solutions
Convert a BST to a sorted circular doubly linked list
CodingAppleMeta
▲ 00 solutions
Detect and break a cycle in a linked list
CodingAmazon
▲ 00 solutions
Linked-list queue with deletions
CodingAmazon
▲ 00 solutions