Question 1

LRU Cache — Confluent Interview Question

Accepted Answer

"LRU Cache" is a medium difficulty problem asked at Confluent 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

Time Based Key-Value Store — Confluent Interview Question

Accepted Answer

"Time Based Key-Value Store" is a medium difficulty problem asked at Confluent interviews. It covers the following topics: Hash Table, String, Binary Search, Design. You can practice it on LeetCode: https://leetcode.com/problems/time-based-key-value-store

Question 3

Valid Sudoku — Confluent Interview Question

Accepted Answer

"Valid Sudoku" is a medium difficulty problem asked at Confluent interviews. It covers the following topics: Array, Hash Table, Matrix. You can practice it on LeetCode: https://leetcode.com/problems/valid-sudoku

Question 4

Minimum Time to Eat All Grains — Confluent Interview Question

Accepted Answer

"Minimum Time to Eat All Grains" is a hard difficulty problem asked at Confluent interviews. It covers the following topics: Array, Two Pointers, Binary Search, Sorting. You can practice it on LeetCode: https://leetcode.com/problems/minimum-time-to-eat-all-grains

Question 5

Sudoku Solver — Confluent Interview Question

Accepted Answer

"Sudoku Solver" is a hard difficulty problem asked at Confluent interviews. It covers the following topics: Array, Hash Table, Backtracking, Matrix. You can practice it on LeetCode: https://leetcode.com/problems/sudoku-solver

Question 6

Regular Expression Matching — Confluent Interview Question

Accepted Answer

"Regular Expression Matching" is a hard difficulty problem asked at Confluent interviews. It covers the following topics: String, Dynamic Programming, Recursion. You can practice it on LeetCode: https://leetcode.com/problems/regular-expression-matching

#	Question Title	Difficulty	Frequency	Topics
1	LRU Cache	MEDIUM	100.0	Hash TableLinked ListDesign+1
2	Time Based Key-Value Store	MEDIUM	93.9	Hash TableStringBinary Search+1
3	Valid Sudoku	MEDIUM	87.0	ArrayHash TableMatrix
4	Minimum Time to Eat All Grains	HARD	83.3	ArrayTwo PointersBinary Search+1
5	Sudoku Solver	HARD	81.2	ArrayHash TableBacktracking+1
6	Regular Expression Matching	HARD	65.0	StringDynamic ProgrammingRecursion
7	Debounce	MEDIUM	65.0	N/A
8	Design Authentication Manager	MEDIUM	65.0	Hash TableLinked ListDesign+1
9	Wildcard Matching	HARD	59.2	StringDynamic ProgrammingGreedy+1
10	Combination Sum	MEDIUM	59.2	ArrayBacktracking

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