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81 problems

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Linked List 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

81 results

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TitleSolutionAcceptDifficultyTopics

1265. Print Immutable Linked List in ReverseVideoPremium

Solution94.0%Medium

Linked List, Recursion +2

1290. Convert Binary Number in a Linked List to IntegerVideo

Solution82.3%Easy

Linked List, Math· 10 companies

1367. Linked List in Binary TreeVideo

Solution52.1%Medium

Binary Tree, Depth-First Search +2· 5 companies

1472. Design Browser HistoryVideo

Solution78.3%Medium

Array, Data Stream +4· 13 companies

1474. Delete N Nodes After M Nodes of a Linked ListVideoPremium

Solution74.4%Easy

Linked List· 1 company

1634. Add Two Polynomials Represented as Linked ListsVideoPremium

Solution61.1%Medium

Linked List, Math +1· 1 company

1669. Merge In Between Linked ListsVideo

Solution82.9%Medium

Linked List· 11 companies

1670. Design Front Middle Back QueueVideo

Solution59.1%Medium

Array, Data Stream +3· 3 companies

1721. Swapping Nodes in a Linked ListVideo

Solution69.9%Medium

Linked List, Two Pointers· 6 companies

1797. Design Authentication ManagerVideo

Solution58.5%Medium

Design, Doubly-Linked List +2· 11 companies

1836. Remove Duplicates From an Unsorted Linked ListVideoPremium

Solution75.6%Medium

Hash Table, Linked List· 2 companies

2046. Sort Linked List Already Sorted Using Absolute ValuesVideoPremium

Solution67.1%Medium

Linked List, Sorting +1

2058. Find the Minimum and Maximum Number of Nodes Between Critical PointsVideo

Solution72.9%Medium

Linked List· 6 companies

2074. Reverse Nodes in Even Length GroupsVideo

Solution65.6%Medium

Linked List· 8 companies

2095. Delete the Middle Node of a Linked ListVideo

Solution60.4%Medium

Linked List, Two Pointers· 7 companies

2130. Maximum Twin Sum of a Linked ListVideo

Solution83.2%Medium

Linked List, Stack +1· 6 companies

2181. Merge Nodes in Between ZerosVideo

Solution89.8%Medium

Linked List, Simulation· 5 companies

2289. Steps to Make Array Non-decreasingVideo

Solution25.3%Medium

Array, Linked List +2· 1 company

2296. Design a Text EditorVideo

Solution52.1%Hard

Design, Doubly-Linked List +4· 10 companies

2326. Spiral Matrix IVVideo

Solution82.3%Medium

Array, Linked List +2· 4 companies

2487. Remove Nodes From Linked ListVideo

Solution75.0%Medium

Linked List, Monotonic Stack +2· 4 companies

2674. Split a Circular Linked ListVideoPremium

Solution78.1%Medium

Linked List, Two Pointers

2807. Insert Greatest Common Divisors in Linked ListVideo

Solution91.4%Medium

Linked List, Math +1· 4 companies

2816. Double a Number Represented as a Linked ListVideo

Solution61.4%Medium

Linked List, Math +1· 3 companies

3062. Winner of the Linked List GameVideoPremium

Solution77.6%Easy

3063. Linked List FrequencyVideoPremium

Solution85.8%Easy

Counting, Hash Table +1

3217. Delete Nodes From Linked List Present in ArrayVideo

Solution69.5%Medium

Array, Hash Table +1· 5 companies

3263. Convert Doubly Linked List to Array IVideoPremium

Solution95.0%Easy

Array, Doubly-Linked List +1

3294. Convert Doubly Linked List to Array IIVideoPremium

Solution83.3%Medium

Array, Doubly-Linked List +1

3507. Minimum Pair Removal to Sort Array IVideo

Solution65.3%Easy

Array, Doubly-Linked List +5· 5 companies

3510. Minimum Pair Removal to Sort Array IIVideo

Solution39.1%Hard

Array, Doubly-Linked List +5· 3 companies

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