Skip to content

For employers Sign in

Make and follow sheets.Sign in

Problems

4,009 problems

Has video Premium only Reset

Array2,209 String870 Hash Table786 Math682 Dynamic Programming666 Sorting504 Greedy480 Binary Search352 Depth-First Search335 Database303 Bit Manipulation283 Matrix278 Tree261 Breadth-First Search255 Two Pointers249 All topics

With video · 4,009 results

Sign in to see which of these you have solved.Sign in

TitleSolutionAcceptDifficultyTopics

3020. Find the Maximum Number of Elements in SubsetVideo

Solution42.2%Medium

Array, Enumeration +1· 5 companies

3021. Alice and Bob Playing Flower GameVideo

Solution60.2%Medium

Math· 5 companies

3022. Minimize OR of Remaining Elements Using OperationsVideo

Solution30.2%Hard

Array, Bit Manipulation +1· 1 company

3023. Find Pattern in Infinite Stream IVideoPremium

Solution57.5%Medium

Array, Hash Function +3· 1 company

3024. Type of TriangleVideo

Solution44.1%Easy

Array, Math +1· 5 companies

3025. Find the Number of Ways to Place People IVideo

Solution64.0%Medium

Array, Enumeration +3· 4 companies

3026. Maximum Good Subarray SumVideo

Solution22.7%Medium

Array, Hash Table +1· 5 companies

3027. Find the Number of Ways to Place People IIVideo

Solution64.4%Hard

Array, Enumeration +3· 3 companies

3028. Ant on the BoundaryVideo

Solution74.6%Easy

Array, Prefix Sum +1· 3 companies

3029. Minimum Time to Revert Word to Initial State IVideo

Solution42.4%Medium

Hash Function, Rolling Hash +2· 1 company

3030. Find the Grid of Region AverageVideo

Solution43.0%Medium

Array, Matrix· 2 companies

3031. Minimum Time to Revert Word to Initial State IIVideo

Solution35.1%Hard

Hash Function, Rolling Hash +2· 1 company

3032. Count Numbers With Unique Digits IIVideoPremium

Solution87.4%Easy

Dynamic Programming, Hash Table +1· 1 company

3033. Modify the MatrixVideo

Solution69.1%Easy

Array, Matrix· 1 company

3034. Number of Subarrays That Match a Pattern IVideo

Solution67.9%Medium

Array, Hash Function +2· 5 companies

3035. Maximum Palindromes After OperationsVideo

Solution47.2%Medium

Array, Counting +4· 8 companies

3036. Number of Subarrays That Match a Pattern IIVideo

Solution34.1%Hard

Array, Hash Function +2· 2 companies

3037. Find Pattern in Infinite Stream IIVideoPremium

–68.1%Hard

Array, Hash Function +3· 1 company

3038. Maximum Number of Operations With the Same Score IVideo

Solution52.8%Easy

Array, Simulation· 1 company

3039. Apply Operations to Make String EmptyVideo

Solution57.5%Medium

Array, Counting +2· 1 company

3040. Maximum Number of Operations With the Same Score IIVideo

Solution34.1%Medium

Array, Dynamic Programming +1· 1 company

3041. Maximize Consecutive Elements in an Array After ModificationVideo

Solution33.7%Hard

Array, Dynamic Programming +1· 1 company

3042. Count Prefix and Suffix Pairs IVideo

Solution77.8%Easy

Array, Hash Function +4· 6 companies

3043. Find the Length of the Longest Common PrefixVideo

Solution62.1%Medium

Array, Hash Table +2· 17 companies

3044. Most Frequent PrimeVideo

Solution45.5%Medium

Array, Counting +5· 1 company

3045. Count Prefix and Suffix Pairs IIVideo

Solution28.2%Hard

Array, Hash Function +4· 4 companies

3046. Split the ArrayVideo

Solution61.7%Easy

Array, Counting +1· 4 companies

3047. Find the Largest Area of Square Inside Two RectanglesVideo

Solution66.9%Medium

Array, Geometry +1· 5 companies

3048. Earliest Second to Mark Indices IVideo

Solution37.3%Medium

Array, Binary Search· 1 company

3049. Earliest Second to Mark Indices IIVideo

Solution22.6%Hard

Array, Binary Search +2· 2 companies

3050. Pizza Toppings Cost AnalysisVideoPremium

Solution69.2%Medium

Database· 1 company

3051. Find Candidates for Data Scientist PositionVideoPremium

Solution75.7%Easy

Database· 1 company

3052. Maximize ItemsVideoPremium

Solution74.4%Hard

Database· 1 company

3053. Classifying Triangles by LengthsVideoPremium

Solution51.2%Easy

Database· 1 company

3054. Binary Tree NodesVideoPremium

Solution78.0%Medium

Database· 1 company

3055. Top Percentile FraudVideoPremium

Solution57.4%Medium

3056. Snaps AnalysisVideoPremium

Solution58.8%Medium

3057. Employees Project AllocationVideoPremium

Solution68.4%Hard

3058. Friends With No Mutual FriendsVideoPremium

Solution49.4%Medium

3059. Find All Unique Email DomainsVideoPremium

Solution70.3%Easy

3060. User Activities within Time BoundsVideoPremium

Solution42.3%Hard

3061. Calculate Trapping Rain WaterVideoPremium

Solution82.0%Hard

3062. Winner of the Linked List GameVideoPremium

Solution77.6%Easy

3063. Linked List FrequencyVideoPremium

Solution85.8%Easy

Counting, Hash Table +1

3064. Guess the Number Using Bitwise Questions IVideoPremium

Solution89.0%Medium

Bit Manipulation, Interactive

3065. Minimum Operations to Exceed Threshold Value IVideo

Solution86.7%Easy

Array· 1 company

3066. Minimum Operations to Exceed Threshold Value IIVideo

Solution45.8%Medium

Array, Heap (Priority Queue) +1· 4 companies

3067. Count Pairs of Connectable Servers in a Weighted Tree NetworkVideo

Solution55.6%Medium

Array, Depth-First Search +1· 2 companies

3068. Find the Maximum Sum of Node ValuesVideo

Solution69.5%Hard

Array, Bit Manipulation +4· 4 companies

3069. Distribute Elements Into Two Arrays IVideo

Solution83.4%Easy

Array, Simulation· 2 companies

Showing 3,001–3,050 of 4,009