There are 10 piles of candies, 9 piles weigh 1g each, and one pile weighs 2g. How can you use a scale to determine which weighs 2g? There are 3 versions of this question: with x piles weighing 1g, y piles weighing 2g, x + y = 10, how can you find how many 1g piles there are?
The written test was divided into four sections, mostly multiple-choice (single and multiple select): a 90-minute logical reasoning section with pattern/algorithm-style questions (no coding), a 30-minute frontend section focused on class-style React/JS fundamentals, a 30-minute backend section where you analyze screenshots of code and fill in missing lines based on expected output, and a database section that tested MongoDB concepts and query optimization.
Leetcode questions. Heaps related
How would you go about building a todo list app
Describe types of HTTP requests
How do you make sure that this code continues to work in the future?
How do you approach testing?
Tell us please your experience with migrating application from on-premise to the public cloud. What was the most challenging decisions?
2 problems involving strings and graphs
For the backend questions were mostly related to databases, Spring and Java. For the frontend questions were related to Javascript (callback, async, events etc) and Reactjs.
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