xmas

Uber Interview Questions – Deepest Node In a Tree

Tree problem is also one of the most commonly asked coding interview questions. Some people might be afraid of tree at first. However, most tree problems in coding interviews are quite straightforward given that there are not too many operations.

As a result, if you are familiar with basic concepts like BST and how to traverse a tree, you are already half done. What you need next is just more practice. (more…)

The post is written by Gainlo - a platform that allows you to have mock interviews with employees from Google, Amazon etc..

I'd like to learn more

Share on FacebookTweet about this on TwitterShare on LinkedInShare on Reddit

Read More

letters-691842_640

Print All Paths Of a Binary Tree

In our previous posts, we’ve covered quite a few coding interview questions about string. This time, I’d like to analyze a binary tree problem.

In my opinion, most interview questions about data structures like binary tree, linked list are relatively easier because these data structures have limited ways of operation so that it can’t be too flexible. In other words, with enough practice, you should be able to be familiar with these topics. We’ll explain more soon.
(more…)

The post is written by Gainlo - a platform that allows you to have mock interviews with employees from Google, Amazon etc..

I'd like to learn more

Share on FacebookTweet about this on TwitterShare on LinkedInShare on Reddit

Read More

northern-light-984001_640

Find The Longest Substring With K Unique Characters

If it’s your first time to see this series of posts, I’d like to emphasize again that the whole point of the article is not providing something like standard answers, but tell you how to analyze a coding interview question step by step. At the end of each post, I’ll summarize some common techniques that can be reused in other questions. (more…)

The post is written by Gainlo - a platform that allows you to have mock interviews with employees from Google, Amazon etc..

I'd like to learn more

Share on FacebookTweet about this on TwitterShare on LinkedInShare on Reddit

Read More

coding interview questions

If a String Contains an Anagram of Another String

From last week’s survey, most Gainlo users said that they want to read posts about how to come up with solutions to coding questions. So we decided to start talking about this topic from this week.

I think it’ll be much more helpful by analyzing popular coding interview questions as examples. I’d also like to highlight few points that make this article worth reading: (more…)

The post is written by Gainlo - a platform that allows you to have mock interviews with employees from Google, Amazon etc..

I'd like to learn more

Share on FacebookTweet about this on TwitterShare on LinkedInShare on Reddit

Read More