Zopsmart

22 LeetCode interview questions

Difficulty Distribution

Easy

23%

Medium

64%

Hard

14%

Title	Difficulty	Acceptance	Frequency	Topics
Zigzag Conversion	Medium	53.5%	100.0%	String
Trapping Rain Water	Hard	66.8%	87.5%	ArrayTwo PointersDynamic Programming+2
Reverse Nodes in Even Length Groups	Medium	63.6%	75.0%	Linked List
Minimum Window Substring	Hard	46.9%	75.0%	Hash TableStringSliding Window
Hexadecimal and Hexatrigesimal Conversion	Easy	80.6%	75.0%	MathString
Fraction Addition and Subtraction	Medium	66.4%	62.5%	MathStringSimulation
Container With Most Water	Medium	59.5%	62.5%	ArrayTwo PointersGreedy
Remove K Digits	Medium	36.4%	62.5%	StringStackGreedy+1
Bulls and Cows	Medium	52.2%	62.5%	Hash TableStringCounting
Reverse Words in a String	Medium	55.5%	62.5%	Two PointersString
Broken Calculator	Medium	55.9%	62.5%	MathGreedy
Decode String	Medium	62.2%	62.5%	StringStackRecursion
Group Anagrams	Medium	72.2%	50.0%	ArrayHash TableString+1
3Sum	Medium	38.6%	50.0%	ArrayTwo PointersSorting
Add Two Numbers	Medium	47.9%	50.0%	Linked ListMathRecursion
Letter Combinations of a Phone Number	Medium	65.5%	50.0%	Hash TableStringBacktracking
Reverse Linked List	Easy	80.3%	50.0%	Linked ListRecursion
Reverse Nodes in k-Group	Hard	65.3%	50.0%	Linked ListRecursion
Longest Palindromic Substring	Medium	37.3%	50.0%	Two PointersStringDynamic Programming
Valid Anagram	Easy	67.8%	50.0%	Hash TableStringSorting
Longest Common Prefix	Easy	47.1%	50.0%	ArrayStringTrie
Best Time to Buy and Sell Stock	Easy	56.4%	50.0%	ArrayDynamic Programming

Showing 22 of 22 questions