LeetCode The Hard Way

Akamai

15 problems

ProblemDifficultyFrequency Topics
961. N-Repeated Element in Size 2N ArrayEasy100%
ArrayHash TablePigeonhole Principle
121. Best Time to Buy and Sell StockEasy94%
ArrayDynamic Programming
525. Contiguous ArrayMedium85.9%
ArrayHash TablePrefix Sum
2235. Add Two IntegersEasy73.7%
Math
1. Two SumEasy64.1%
ArrayHash Table
387. First Unique Character in a StringEasy64.1%
Hash TableStringQueueCounting
62. Unique PathsMedium64.1%
MathDynamic ProgrammingCombinatorics
54. Spiral MatrixMedium64.1%
ArrayMatrixSimulation
3. Longest Substring Without Repeating CharactersMedium64.1%
Hash TableStringSliding Window
647. Palindromic SubstringsMedium64.1%
Two PointersStringDynamic Programming
162. Find Peak ElementMedium64.1%
ArrayBinary Search
207. Course ScheduleMedium64.1%
Depth-First SearchBreadth-First SearchGraph TheoryTopological SortDirected Acyclic Graph
1200. Minimum Absolute DifferenceEasy64.1%
ArraySorting
1652. Defuse the BombEasy64.1%
ArraySliding Window
Longest PalindromeEasy64.1%
Hash TableStringGreedy
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