Question 1

Valid Parentheses — Ozon Interview Question

Accepted Answer

"Valid Parentheses" is a easy difficulty problem asked at Ozon interviews. It covers the following topics: String, Stack. You can practice it on LeetCode: https://leetcode.com/problems/valid-parentheses

Question 2

Merge Intervals — Ozon Interview Question

Accepted Answer

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

Question 3

Squares of a Sorted Array — Ozon Interview Question

Accepted Answer

"Squares of a Sorted Array" is a easy difficulty problem asked at Ozon interviews. It covers the following topics: Array, Two Pointers, Sorting. You can practice it on LeetCode: https://leetcode.com/problems/squares-of-a-sorted-array

Question 4

Monotonic Array — Ozon Interview Question

Accepted Answer

"Monotonic Array" is a easy difficulty problem asked at Ozon interviews. It covers the following topics: Array. You can practice it on LeetCode: https://leetcode.com/problems/monotonic-array

Question 5

Department Top Three Salaries — Ozon Interview Question

Accepted Answer

"Department Top Three Salaries" is a hard difficulty problem asked at Ozon interviews. It covers the following topics: Database. You can practice it on LeetCode: https://leetcode.com/problems/department-top-three-salaries

Question 6

Two Sum — Ozon Interview Question

Accepted Answer

"Two Sum" is a easy difficulty problem asked at Ozon interviews. It covers the following topics: Array, Hash Table. You can practice it on LeetCode: https://leetcode.com/problems/two-sum

#	Question Title	Difficulty	Frequency	Topics
1	Valid Parentheses	EASY	100.0	StringStack
2	Merge Intervals	MEDIUM	91.8	ArraySorting
3	Squares of a Sorted Array	EASY	91.8	ArrayTwo PointersSorting
4	Monotonic Array	EASY	86.4	Array
5	Department Top Three Salaries	HARD	86.4	Database
6	Two Sum	EASY	79.4	ArrayHash Table
7	Move Zeroes	EASY	69.5	ArrayTwo Pointers
8	Reverse Linked List	EASY	69.5	Linked ListRecursion
9	First Unique Character in a String	EASY	69.5	Hash TableStringQueue+1
10	Invert Binary Tree	EASY	69.5	TreeDepth-First SearchBreadth-First Search+1

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