Top 40 String LeetCode Questions Asked in Microsoft (2025 Interview Guide)
Preparing for a Microsoft coding interview? This guide lists the top string-based LeetCode questions frequently asked in Microsoft software engineering interviews. Each problem includes its difficulty level, interview frequency, and a direct LeetCode link to help you practice efficiently.
Top String LeetCode Questions Asked in Microsoft
String problems are very common in Microsoft software engineering interviews. These questions usually test a candidate’s understanding of string manipulation, hashing techniques, sliding window patterns, and character frequency analysis.
During technical interviews, candidates are often asked to write efficient solutions for problems involving substrings, pattern matching, palindromes, and string transformations. Mastering these patterns can help you significantly improve your performance in coding rounds.
In this guide, we’ve compiled some of the most frequently asked string-related LeetCode questions reported in Microsoft interviews. The list includes the difficulty level, interview frequency, and a direct link to the LeetCode problem, making it easier for you to focus on the problems that matter the most.
Below is a curated list of top string LeetCode questions asked in Microsoft interviews.
| Sl.No | Question | Difficulty | Frequency | Leetcode Link |
|---|---|---|---|---|
| 1 | Time Based Key-Value Store | MEDIUM | 100 | Solve On LeetCode |
| 2 | Longest Substring Without Repeating Characters | MEDIUM | 82.6 | Solve On LeetCode |
| 3 | Group Anagrams |
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