Question 1

Longest Happy String — Rakuten Interview Question

Accepted Answer

"Longest Happy String" is a medium difficulty problem asked at Rakuten interviews. It covers the following topics: String, Greedy, Heap (Priority Queue). You can practice it on LeetCode: https://leetcode.com/problems/longest-happy-string

Question 2

Best Time to Buy and Sell Stock II — Rakuten Interview Question

Accepted Answer

"Best Time to Buy and Sell Stock II" is a medium difficulty problem asked at Rakuten interviews. It covers the following topics: Array, Dynamic Programming, Greedy. You can practice it on LeetCode: https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii

Question 3

Best Time to Buy and Sell Stock — Rakuten Interview Question

Accepted Answer

"Best Time to Buy and Sell Stock" is a easy difficulty problem asked at Rakuten interviews. It covers the following topics: Array, Dynamic Programming. You can practice it on LeetCode: https://leetcode.com/problems/best-time-to-buy-and-sell-stock

Question 4

LRU Cache — Rakuten Interview Question

Accepted Answer

"LRU Cache" is a medium difficulty problem asked at Rakuten 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 5

Rotate Image — Rakuten Interview Question

Accepted Answer

"Rotate Image" is a medium difficulty problem asked at Rakuten interviews. It covers the following topics: Array, Math, Matrix. You can practice it on LeetCode: https://leetcode.com/problems/rotate-image

Question 6

3Sum — Rakuten Interview Question

Accepted Answer

"3Sum" is a medium difficulty problem asked at Rakuten interviews. It covers the following topics: Array, Two Pointers, Sorting. You can practice it on LeetCode: https://leetcode.com/problems/3sum

#	Question Title	Difficulty	Frequency	Topics
1	Longest Happy String	MEDIUM	100.0	StringGreedyHeap (Priority Queue)
2	Best Time to Buy and Sell Stock II	MEDIUM	100.0	ArrayDynamic ProgrammingGreedy
3	Best Time to Buy and Sell Stock	EASY	100.0	ArrayDynamic Programming
4	LRU Cache	MEDIUM	100.0	Hash TableLinked ListDesign+1
5	Rotate Image	MEDIUM	100.0	ArrayMathMatrix
6	3Sum	MEDIUM	100.0	ArrayTwo PointersSorting

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