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DSA Problems

12 problems · master the patterns that show up in every interview.

Daily set · 3 curated problems
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Medium
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Hard
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Arrays0/14
Strings0/12
Two Pointers0/11
Sliding Window0/11
Binary Search0/11
Stacks & Queues0/11
Linked Lists0/12
Trees0/13
Tries0/6
Heaps & Priority Queues0/10
Backtracking0/9
Graphs0/13
Greedy0/10
Dynamic Programming0/16
Bit Manipulation0/10
TopicProblemDifficulty
  • Linked ListsReverse Linked List
    Linked ListsEasy
    Easy
  • Linked ListsMiddle of the Linked List
    Linked ListsEasy
    Easy
  • Linked ListsMerge Two Sorted Lists
    Linked ListsEasy
    Easy
  • Linked ListsLinked List Cycle
    Linked ListsEasy
    Easy
  • Linked ListsRemove Nth Node From End of List
    Linked ListsMedium
    Medium
  • Linked ListsRemove Duplicates from Sorted List
    Linked ListsEasy
    Easy
  • Linked ListsPalindrome Linked List
    Linked ListsEasy
    Easy
  • Linked ListsReorder List
    Linked ListsMedium
    Medium
  • Linked ListsAdd Two Numbers
    Linked ListsMedium
    Medium
  • Linked ListsOdd Even Linked List
    Linked ListsMedium
    Medium
  • Linked ListsSwap Nodes in Pairs
    Linked ListsEasy
    Easy
  • Linked ListsRotate List
    Linked ListsMedium
    Medium