Question 1

Minimum Number of Steps to Make Two Strings Anagram — sofi Interview Question

Accepted Answer

"Minimum Number of Steps to Make Two Strings Anagram" is a medium difficulty problem asked at sofi interviews. It covers the following topics: Hash Table, String, Counting. You can practice it on LeetCode: https://leetcode.com/problems/minimum-number-of-steps-to-make-two-strings-anagram

Question 2

Minimum Window Substring — sofi Interview Question

Accepted Answer

"Minimum Window Substring" is a hard difficulty problem asked at sofi 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 3

Asteroid Collision — sofi Interview Question

Accepted Answer

"Asteroid Collision" is a medium difficulty problem asked at sofi interviews. It covers the following topics: Array, Stack, Simulation. You can practice it on LeetCode: https://leetcode.com/problems/asteroid-collision

Question 4

Longest Mountain in Array — sofi Interview Question

Accepted Answer

"Longest Mountain in Array" is a medium difficulty problem asked at sofi interviews. It covers the following topics: Array, Two Pointers, Dynamic Programming, Enumeration. You can practice it on LeetCode: https://leetcode.com/problems/longest-mountain-in-array

Question 5

Number of Islands — sofi Interview Question

Accepted Answer

"Number of Islands" is a medium difficulty problem asked at sofi interviews. It covers the following topics: Array, Depth-First Search, Breadth-First Search, Union Find, Matrix. You can practice it on LeetCode: https://leetcode.com/problems/number-of-islands

Question 6

Insert Delete GetRandom O(1) — sofi Interview Question

Accepted Answer

"Insert Delete GetRandom O(1)" is a medium difficulty problem asked at sofi interviews. It covers the following topics: Array, Hash Table, Math, Design, Randomized. You can practice it on LeetCode: https://leetcode.com/problems/insert-delete-getrandom-o1

#	Question Title	Difficulty	Frequency	Topics
1	Minimum Number of Steps to Make Two Strings Anagram	MEDIUM	100.0	Hash TableStringCounting
2	Minimum Window Substring	HARD	92.9	Hash TableStringSliding Window
3	Asteroid Collision	MEDIUM	88.5	ArrayStackSimulation
4	Longest Mountain in Array	MEDIUM	88.5	ArrayTwo PointersDynamic Programming+1
5	Number of Islands	MEDIUM	83.0	ArrayDepth-First SearchBreadth-First Search+2
6	Insert Delete GetRandom O(1)	MEDIUM	83.0	ArrayHash TableMath+2
7	Roman to Integer	EASY	75.9	Hash TableMathString
8	Maximum Number of Non-overlapping Palindrome Substrings	HARD	75.9	Two PointersStringDynamic Programming+1
9	Merge k Sorted Lists	HARD	75.9	Linked ListDivide and ConquerHeap (Priority Queue)+1
10	Two Sum	EASY	75.9	ArrayHash Table

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