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14 problems

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Dynamic Programming Array447 String248 Hash Table189 Math173 Database113 Sorting100 Simulation93 Two Pointers70 Counting69 Bit Manipulation54 Greedy51 Matrix41 Tree40 Depth-First Search39 Binary Tree37 All topics

Easy · With video · 14 results

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TitleSolutionAcceptDifficultyTopics

70. Climbing StairsVideo

Solution54.0%Easy

Dynamic Programming, Math +1· 37 companies

118. Pascal's TriangleVideo

Solution79.4%Easy

Array, Dynamic Programming· 17 companies

119. Pascal's Triangle IIVideo

Solution67.8%Easy

Array, Dynamic Programming· 6 companies

121. Best Time to Buy and Sell StockVideo

Solution57.1%Easy

Array, Dynamic Programming· 92 companies

338. Counting BitsVideo

Solution80.5%Easy

Bit Manipulation, Dynamic Programming· 9 companies

392. Is SubsequenceVideo

Solution49.5%Easy

Dynamic Programming, String +1· 16 companies

509. Fibonacci NumberVideo

Solution74.6%Easy

Dynamic Programming, Math +2· 16 companies

746. Min Cost Climbing StairsVideo

Solution68.7%Easy

Array, Dynamic Programming· 7 companies

1025. Divisor GameVideo

Solution72.3%Easy

Brainteaser, Dynamic Programming +2· 7 companies

1137. N-th Tribonacci NumberVideo

Solution63.2%Easy

Dynamic Programming, Math +1· 7 companies

1668. Maximum Repeating SubstringVideo

Solution42.5%Easy

Dynamic Programming, String +1· 6 companies

2900. Longest Unequal Adjacent Groups Subsequence IVideo

Solution67.0%Easy

Array, Dynamic Programming +2· 1 company

3032. Count Numbers With Unique Digits IIVideoPremium

Solution87.4%Easy

Dynamic Programming, Hash Table +1· 1 company

3954. Sum of Compatible Numbers in Range IVideo

Solution58.4%Easy

Bit Manipulation, Dynamic Programming +1

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