Microsoft Coding Interview Questions

We track 1339 coding questions asked at Microsoft, tagged with the algorithms and concepts they test. The most common: Array, String, Hash Table, Dynamic Programming, Math.

Browse all 1339 Microsoft questions →

How many questions involve each concept

Share of all 1339 tracked Microsoft questions that touch each concept. Questions usually involve several, so these overlap.

Where Microsoft differs from the average company

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

Microsoft specialties

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

Difficulty mix

Level split of the 1339 tracked Microsoft questions.

Junior29% (382)
Mid/Senior55% (740)
Staff16% (217)

Every concept in Microsoft interviews

Concept	Questions	% of questions	Share of mix
Array	692	51.7%	18.4%
String	294	22.0%	9.1%
Hash Table	262	19.6%	5.8%
Dynamic Programming	218	16.3%	6.0%
Math	205	15.3%	6.6%
Sorting	173	12.9%	3.7%
Depth-First Search	140	10.5%	2.7%
Greedy	132	9.9%	3.0%
Binary Search	124	9.3%	2.9%
Two Pointers	118	8.8%	3.0%
Breadth-First Search	114	8.5%	2.2%
Matrix	105	7.8%	2.3%
Tree	98	7.3%	2.0%
Bit Manipulation	85	6.3%	2.3%
Stack	85	6.3%	2.0%
Binary Tree	84	6.3%	1.7%
Simulation	74	5.5%	1.8%
Heap (Priority Queue)	73	5.5%	1.3%
Prefix Sum	71	5.3%	1.7%
Sliding Window	70	5.2%	1.6%
Graph Theory	63	4.7%	1.4%
Linked List	57	4.3%	1.9%
Database	56	4.2%	4.4%
Backtracking	52	3.9%	1.3%
Counting	47	3.5%	0.9%
Design	47	3.5%	0.9%
Union-Find	37	2.8%	0.6%
Recursion	34	2.5%	0.9%
Divide and Conquer	31	2.3%	0.6%
Enumeration	29	2.2%	0.7%
Monotonic Stack	28	2.1%	0.5%
Queue	23	1.7%	0.4%
Binary Search Tree	22	1.6%	0.4%
Ordered Set	21	1.6%	0.3%
Number Theory	20	1.5%	0.5%
Trie	18	1.3%	0.4%
Memoization	16	1.2%	0.3%
Topological Sort	14	1.0%	0.2%
Geometry	12	0.9%	0.3%
Shortest Path	12	0.9%	0.2%
String Matching	12	0.9%	0.3%
Bitmask	11	0.8%	0.2%
Hash Function	11	0.8%	0.2%
Segment Tree	10	0.7%	0.1%
Doubly-Linked List	9	0.7%	0.2%
Monotonic Queue	9	0.7%	0.1%
Counting Sort	7	0.5%	0.1%
Binary Indexed Tree	6	0.4%	0.1%
Bucket Sort	6	0.4%	0.1%
Combinatorics	6	0.4%	0.1%
Data Stream	6	0.4%	0.1%
Game Theory	6	0.4%	0.1%
Rolling Hash	6	0.4%	0.1%
Brainteaser	5	0.4%	0.1%
Merge Sort	5	0.4%	0.1%
Randomized	5	0.4%	0.1%
Interactive	4	0.3%	0.1%
Quickselect	4	0.3%	0.1%
Concurrency	3	0.2%	0.2%
Probability and Statistics	3	0.2%	0.1%
Iterator	2	0.1%	0.0%
Sweep Line	2	0.1%	0.0%
Minimum Spanning Tree	2	0.1%	0.0%
Radix Sort	2	0.1%	0.0%
Shell	2	0.1%	0.2%
Biconnected Component	1	0.1%	0.0%
Eulerian Circuit	1	0.1%	0.0%
Rejection Sampling	1	0.1%	0.0%
Sort	1	0.1%	0.0%

Practice a Microsoft interview

Take a realistic AI-led mock interview with questions Microsoft actually asks, with live voice and real feedback.

Start a mock interview

Your first interview is free · no credit card required