Meta Coding Interview Questions

We track 1308 coding questions asked at Meta, tagged with the algorithms and concepts they test. The most common: Array, String, Hash Table, Math, Dynamic Programming.

Browse all 1308 Meta questions →

How many questions involve each concept

Share of all 1308 tracked Meta questions that touch each concept. Questions usually involve several, so these overlap.

Where Meta differs from the average company

Concept weight at Meta relative to the average across all companies we track. Green means Meta leans on it harder than most.

Meta specialties

Concepts that show up at Meta but are rarely asked elsewhere. They are easy to get blindsided by.

Difficulty mix

Level split of the 1308 tracked Meta questions.

Junior31% (401)
Mid/Senior54% (709)
Staff15% (198)

Every concept in Meta interviews

Concept	Questions	% of questions	Share of mix
Array	681	52.1%	18.9%
String	278	21.3%	8.6%
Hash Table	265	20.3%	5.9%
Math	200	15.3%	6.4%
Dynamic Programming	192	14.7%	5.7%
Sorting	167	12.8%	3.4%
Depth-First Search	134	10.2%	2.6%
Binary Search	118	9.0%	2.8%
Greedy	115	8.8%	2.7%
Breadth-First Search	107	8.2%	2.1%
Two Pointers	105	8.0%	2.7%
Tree	104	8.0%	2.1%
Binary Tree	95	7.3%	2.0%
Matrix	93	7.1%	2.1%
Stack	84	6.4%	2.0%
Simulation	77	5.9%	2.0%
Heap (Priority Queue)	76	5.8%	1.4%
Bit Manipulation	74	5.7%	2.1%
Prefix Sum	72	5.5%	1.8%
Sliding Window	69	5.3%	1.6%
Counting	61	4.7%	1.2%
Database	58	4.4%	4.7%
Linked List	56	4.3%	1.9%
Graph Theory	51	3.9%	1.2%
Design	49	3.7%	1.0%
Backtracking	47	3.6%	1.3%
Union-Find	33	2.5%	0.6%
Divide and Conquer	31	2.4%	0.6%
Enumeration	30	2.3%	0.8%
Monotonic Stack	30	2.3%	0.6%
Recursion	29	2.2%	0.8%
Binary Search Tree	23	1.8%	0.4%
Queue	23	1.8%	0.4%
Ordered Set	20	1.5%	0.3%
Trie	20	1.5%	0.4%
Number Theory	15	1.1%	0.4%
Geometry	14	1.1%	0.3%
Memoization	14	1.1%	0.2%
Topological Sort	14	1.1%	0.3%
Segment Tree	13	1.0%	0.2%
Bitmask	12	0.9%	0.2%
Combinatorics	11	0.8%	0.2%
Hash Function	11	0.8%	0.2%
Binary Indexed Tree	10	0.8%	0.1%
Brainteaser	10	0.8%	0.3%
Data Stream	10	0.8%	0.2%
String Matching	10	0.8%	0.3%
Monotonic Queue	9	0.7%	0.1%
Shortest Path	9	0.7%	0.2%
Game Theory	8	0.6%	0.2%
Merge Sort	7	0.5%	0.1%
Randomized	7	0.5%	0.1%
Bucket Sort	6	0.5%	0.1%
Counting Sort	6	0.5%	0.1%
Doubly-Linked List	6	0.5%	0.1%
Rolling Hash	6	0.5%	0.1%
Interactive	4	0.3%	0.1%
Quickselect	4	0.3%	0.1%
Shell	4	0.3%	0.3%
Sweep Line	3	0.2%	0.1%
Iterator	2	0.2%	0.0%
Radix Sort	2	0.2%	0.0%
Reservoir Sampling	2	0.2%	0.0%
Concurrency	1	0.1%	0.1%
Eulerian Circuit	1	0.1%	0.0%
Minimum Spanning Tree	1	0.1%	0.0%
Probability and Statistics	1	0.1%	0.0%
Rejection Sampling	1	0.1%	0.0%
Sort	1	0.1%	0.0%
Suffix Array	1	0.1%	0.0%

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