Grokking Microsoft Coding Interview

It is the 50 coding questions asked most frequently in Microsoft interviews. Each one comes as a problem lesson you attempt in an in-browser editor, followed by a separate solution lesson with the approach, an algorithm walkthrough, code in six languages, and the time and space complexity.

Engineers interviewing at Microsoft, at any level. It assumes you already know your data structures and patterns and want company-specific practice for the final stretch. If the fundamentals are not solid yet, start with Grokking the Coding Interview and return to this closer to the date.

Fifty, among them Buddy Strings, Can Place Flowers, Plus One, Merge Two Sorted Lists, Excel Sheet Column Title, Restore IP Addresses, Spiral Matrix, Valid Sudoku, Multiply Strings, Score of Parentheses, Inorder Successor in BST, Distribute Coins in Binary Tree, Number of Islands, Next Permutation, 132 Pattern, Median of Two Sorted Arrays, Regular Expression Matching, Largest Rectangle in Histogram, Word Ladder, and Longest Valid Parentheses.

Broadly a standard data structures and algorithms loop, with a noticeable preference for string and array manipulation, matrix problems, and tree work over the heavier graph theory some companies favour. The problem mix here reflects that. Communication is weighted heavily, which is why the solutions explain the route to the answer rather than only the answer itself.

15 easy, 25 medium, and 10 hard. Most of your interview time will be spent in the medium band, so that is the largest chapter, but the hard chapter contains several problems Microsoft asks often enough to be worth the effort.

Python, Java, C++, JavaScript, Go, and C#. Every solution is given in all six, which is worth noting for Microsoft specifically, since C# turns up in its interviews more often than in most.

It is targeted preparation for the coding rounds rather than for the whole loop. Microsoft interviews also cover system design at most levels and always include behavioral questions, and no list can guarantee the questions you get. The aim of these 50 is recognition of the underlying shapes, not coverage of a fixed set.

Grokking the Coding Interview teaches the patterns from the ground up across a much larger problem set. This one assumes them and narrows to a single company, so it works best as the last phase of preparation rather than the first.

Text-based, with runnable code and diagrams. You want to attempt, run, fail, and reread, and that cycle is far quicker on a page than in a video.

Yes. Design Gurus issues a certificate once you have completed the course, and you can share the link directly or add it to your LinkedIn profile.