Question 1

LRU Cache — TikTok Interview Question

Accepted Answer

"LRU Cache" is a medium difficulty problem asked at TikTok interviews. It covers the following topics: Hash Table, Linked List, Design, Doubly-Linked List. You can practice it on LeetCode: https://leetcode.com/problems/lru-cache

Question 2

Merge Intervals — TikTok Interview Question

Accepted Answer

"Merge Intervals" is a medium difficulty problem asked at TikTok interviews. It covers the following topics: Array, Sorting. You can practice it on LeetCode: https://leetcode.com/problems/merge-intervals

Question 3

Longest Substring Without Repeating Characters — TikTok Interview Question

Accepted Answer

"Longest Substring Without Repeating Characters" is a medium difficulty problem asked at TikTok interviews. It covers the following topics: Hash Table, String, Sliding Window. You can practice it on LeetCode: https://leetcode.com/problems/longest-substring-without-repeating-characters

Question 4

Trapping Rain Water — TikTok Interview Question

Accepted Answer

"Trapping Rain Water" is a hard difficulty problem asked at TikTok interviews. It covers the following topics: Array, Two Pointers, Dynamic Programming, Stack, Monotonic Stack. You can practice it on LeetCode: https://leetcode.com/problems/trapping-rain-water

Question 5

Merge k Sorted Lists — TikTok Interview Question

Accepted Answer

"Merge k Sorted Lists" is a hard difficulty problem asked at TikTok interviews. It covers the following topics: Linked List, Divide and Conquer, Heap (Priority Queue), Merge Sort. You can practice it on LeetCode: https://leetcode.com/problems/merge-k-sorted-lists

Question 6

Minimum Window Substring — TikTok Interview Question

Accepted Answer

"Minimum Window Substring" is a hard difficulty problem asked at TikTok interviews. It covers the following topics: Hash Table, String, Sliding Window. You can practice it on LeetCode: https://leetcode.com/problems/minimum-window-substring

#	Question Title	Difficulty	Frequency	Topics
1	LRU Cache	MEDIUM	96.0	Hash TableLinked ListDesign+1
2	Merge Intervals	MEDIUM	89.6	ArraySorting
3	Longest Substring Without Repeating Characters	MEDIUM	84.8	Hash TableStringSliding Window
4	Trapping Rain Water	HARD	82.2	ArrayTwo PointersDynamic Programming+2
5	Merge k Sorted Lists	HARD	76.9	Linked ListDivide and ConquerHeap (Priority Queue)+1
6	Minimum Window Substring	HARD	76.9	Hash TableStringSliding Window
7	Word Search	MEDIUM	76.0	ArrayStringBacktracking+2
8	Search in Rotated Sorted Array	MEDIUM	75.1	ArrayBinary Search
9	Longest Palindromic Substring	MEDIUM	73.1	Two PointersStringDynamic Programming
10	N-Queens	HARD	73.1	ArrayBacktracking

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