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Microsoft Interview Questions



101 Microsoft Interview Questions Found

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What to expect at Microsoft Interview?

Be able to discuss the big-O complexity of your approaches. Don't forget to brush up on your data structures like lists, arrays, hash tables, hash maps, stacks, queues, graphs, trees, heaps. Also sorts, searches, and traversals(BFS, DFS). Also review recursion and iterative approaches.
Use the programming language you're best at. It's important to write your solution correctly and in time, so use the language you are most familiar with.
Find and fix the bugs by yourself: Don't wait for the interviewer to find them for you.
Use the hints you are given: Usually, the interviewer knows the question well enough to know which hints will help you next if you get stuck.


Solve Interview Questions asked at Microsoft


1. Majority Element

Given an array of size n, find the majority element. The majority element is the element that appears more than floor(n/2) times. You may assume that ...

2. Distribute Candy

There are N children standing in a line. Each child is assigned a rating value. You are giving candies to these children subjected to the following re...

3. Longest Increasing Subsequence

Find the longest increasing subsequence of a given array of integers, A. In other words, find a subsequence of array in which the subsequence’s elemen...

4. Max Rectangle in Binary Matrix

Given a 2D binary matrix filled with 0’s and 1’s, find the largest rectangle containing all ones and return its area. Bonus if you can solve it in O(n...

5. Max Product Subarray

Find the contiguous subarray within an array (containing at least one number) which has the largest product. Return an integer corresponding to the max...

6. Regular Expression Match

Implement wildcard pattern matching with support for ‘?’ and ‘*’ for strings A and B. ’?’ : Matches any single character. ‘*’ : Matches any seq...

7. Edit Distance

Given two strings A and B, find the minimum number of steps required to convert A to B. (each operation is counted as 1 step.) You have the following ...

8. Regular Expression II

Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or more of the preceding elemen...

9. Swap List Nodes in pairs

Given a linked list, swap every two adjacent nodes and return its head. For example, Given 1->2->3->4, you should return the list as 2->1-...

10. Reorder List

Given a singly linked list L: L0 → L1 → … → Ln-1 → Ln, reorder it to: L0 → Ln → L1 → Ln-1 → L2 → Ln-2 → … You must do this in-place wit...


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