Common Data Structures and Algorithms

This is a quiz about common data structures and algorithms in interviews.

Still, there might be something missing, please don't hesitate to leave a comment if you have any suggestions.
Other techniques are something else essential, but not a part of DSA's.
Grey cells don't have a hint.
Quiz by
Angbo
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Last updated: February 18, 2026
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First submittedNovember 20, 2025
Times taken28
Average score40.0%
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Algorithms
Level
Hint
Answer
1
 
Prefix Sum
2
Two Pointers
Sliding Window
 
Two Pointers
3
Searching
Binary Search
Breadth-First Search
Depth-First Search
 
Greedy
4
Graph
Dijkstra
 
Dynamic Programming
Graph
MST
Graph
Topological Sort
5
Graph
A*
 
Divide and Conquer
Data Structures
Level
Hint
Answer
1
 
Array
 
Hash Table
 
Set
2
 
Linked List
 
Queue
 
Stack
3
Tree
Binary Tree
Queue
Priority Queue / Heap
 
Tree
4
Set
Disjoint Set
 
Graph
Stack
Monotonic Stack
Tree
Trie
5
Tree
Binary Indexed Tree
Tree
Segment Tree
Other Techniques
Level
Answer
1
Iteration
3
Bit Manipulation
Recursion
4
Backtracking
Memoization
5
Bitmask
Hashing
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