Huawei

20 LeetCode interview questions

Difficulty Distribution

Easy

20%

Medium

55%

Hard

25%

Title	Difficulty	Acceptance	Frequency	Topics
Minimum Number of Visited Cells in a Grid	Hard	23.6%	100.0%	ArrayDynamic ProgrammingStack+5
Maximum Binary String After Change	Medium	48.0%	100.0%	StringGreedy
Two Sum	Easy	57.1%	87.5%	ArrayHash Table
Number of Islands	Medium	63.8%	87.5%	ArrayDepth-First SearchBreadth-First Search+2
Valid Parentheses	Easy	43.7%	75.0%	StringStack
Decode String	Medium	62.2%	75.0%	StringStackRecursion
Generate Parentheses	Medium	78.2%	75.0%	StringDynamic ProgrammingBacktracking
Longest Palindromic Substring	Medium	37.3%	75.0%	Two PointersStringDynamic Programming
Longest Increasing Subsequence	Medium	59.0%	75.0%	ArrayBinary SearchDynamic Programming
Combination Sum	Medium	76.1%	62.5%	ArrayBacktracking
24 Game	Hard	59.3%	62.5%	ArrayMathBacktracking
Merge Two Sorted Lists	Easy	67.9%	62.5%	Linked ListRecursion
Maximum Subarray	Medium	53.0%	62.5%	ArrayDivide and ConquerDynamic Programming
N-Queens	Hard	74.9%	62.5%	ArrayBacktracking
Remove K Digits	Medium	36.4%	62.5%	StringStackGreedy+1
Trapping Rain Water	Hard	66.8%	62.5%	ArrayTwo PointersDynamic Programming+2
Container With Most Water	Medium	59.5%	62.5%	ArrayTwo PointersGreedy
Merge k Sorted Lists	Hard	58.8%	62.5%	Linked ListDivide and ConquerHeap (Priority Queue)+1
3Sum	Medium	38.6%	62.5%	ArrayTwo PointersSorting
Linked List Cycle	Easy	53.9%	62.5%	Hash TableLinked ListTwo Pointers

Showing 20 of 20 questions