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691 problems

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Array2,237 String877 Hash Table797 Math691 Dynamic Programming673 Sorting508 Greedy485 Binary Search357 Depth-First Search338 Database308 Bit Manipulation286 Matrix279 Tree264 Breadth-First Search257 Prefix Sum252 All topics

691 results

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TitleSolutionAcceptDifficultyTopics

3869. Count Fancy Numbers in a RangeVideo

Solution26.6%Hard

Dynamic Programming, Math

3870. Count Commas in RangeVideo

Solution78.0%Easy

3871. Count Commas in Range IIVideo

Solution49.3%Medium

3875. Construct Uniform Parity Array IVideo

Solution85.8%Easy

Array, Math· 2 companies

3876. Construct Uniform Parity Array IIVideo

Solution66.3%Medium

Array, Math· 1 company

3881. Direction Assignments with Exactly K Visible PeopleVideo

Solution35.7%Medium

Combinatorics, Math

3886. Sum of Sortable IntegersVideo

Solution55.3%Hard

Array, Enumeration +2

3894. Traffic Signal ColorVideo

Solution82.7%Easy

Math, Simulation +1· 1 company

3895. Count Digit AppearancesVideo

Solution86.2%Medium

3896. Minimum Operations to Transform Array into Alternating PrimeVideo

Solution53.2%Medium

Array, Binary Search +4· 1 company

3899. Angles of a TriangleVideo

Solution62.5%Medium

Array, Geometry +1

3901. Good Subsequence QueriesVideo

Solution19.9%Hard

Array, Math +2· 2 companies

3908. Valid Digit NumberVideo

Solution69.8%Easy

3918. Sum of Primes Between Number and Its ReverseVideo

Solution75.3%Medium

Math, Number Theory

3927. Minimize Array Sum Using Divisible ReplacementsVideo

–32.2%Medium

Array, Greedy +3· 1 company

3932. Count K-th Roots in a RangeVideo

Solution24.6%Medium

Binary Search, Math· 2 companies

3945. Digit Frequency ScoreVideo

Solution90.7%Easy

Hash Table, Math

3953. Maximum Score with Co-Prime ElementVideo

–27.5%Hard

Array, Combinatorics +4· 2 companies

3959. Check Good IntegerVideo

Solution82.6%Easy

Math, Simulation

3966. Count Good Integers in a RangeVideo

–49.8%Hard

Dynamic Programming, Math

3968. Maximum Manhattan Distance After All MovesVideo

Solution63.3%Medium

Counting, Math +1

3971. Maximum Total ValueVideo

–29.7%Hard

Array, Binary Search +2· 1 company

3982. Sum of Integers with Maximum Digit RangeVideo

Solution72.9%Easy

3984. Divisible GameVideo

–42.3%Medium

Array, Dynamic Programming +3

3986. Number of Elapsed Seconds Between Two TimesVideo

Solution82.5%Easy

3987. Minimum Total Cost to Process All ElementsVideo

Solution24.7%Medium

3988. Create Grid With Exactly K Paths IVideo

–33.1%Medium

Array, Combinatorics +2

3993. Maximum Value of an Alternating SequenceVideo

Solution31.5%Medium

3996. Even Number of Knight MovesVideo

Solution75.1%Easy

4000. Largest Integer With Given Digit SumVideo

Solution61.6%Easy

4002. Count Valid SequencesVideo

Solution42.5%Medium

Combinatorics, Math

4010. Maximize Pair Strength Using GCDVideo

Solution48.6%Easy

Array, Enumeration +2

4021. Minimum Operations to Make a Rotated Palindrome IVideo

Solution63.9%Medium

Enumeration, Math +1

4022. K-th Digit in Infinite StringVideo

Solution35.1%Medium

Binary Search, Math

4032. Longest Subarray With at Most K Distinct Prime FactorsVideo

Solution56.5%Medium

Array, Hash Table +3

4034. Minimum Bishop Moves to Reach TargetVideo

Solution65.4%Medium

4035. Maximum Valid Split Positions IVideo

Solution51.8%Medium

Array, Enumeration +2

4037. Maximum Valid Split Positions IIVideo

Solution32.2%Hard

Array, Enumeration +2

4039. Sum of Decoded NumbersVideo

Solution44.8%Medium

4050. Minimum Days to Score Exactly N PointsVideo

Solution42.2%Medium

Dynamic Programming, Math

4061. Minimum Queen Moves to Reach TargetVideo

Solution56.7%Easy

Showing 651–691 of 691