Most popular coding interview questions and solutions

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Since I started my job search I realized that without practicing coding questions it is not possible to crack an interview and get an offer. I thought this post will be helpful for all beginners . I have selected some most commonly asked and must do practice problems for you.

1. Tree problems (DFS)

Solution

2. Sliding window maximum

Solution

3. Topological sort(Course Schedule)

Solution

4. Union Find(Number of Provinces)

Solution

5. Greedy(Partition Labels)

Solution

6. Binary Search(Find the Duplicate Number)

Solution

7. Two pointer(reverse string)

Solution:

8. Heap(Swim in Rising Water)

Solution:

9. HashMap(design my hashmap)

Solution:

10. Graph(keys and rooms)

Solution:

Hope you find this article helpful and for more questions feel free to contact me @kristinelpetrosyan@gmail.com