Cadence Design Systems Junior Software Engineer interview questions

Implement a method that receives a big rectangle and a list of smaller rectangles and returns the number of small rectangles from the list that we can put inside the big rectangle. don't need to check all combination, just return the count until we first run out out space

Design system of autonomic cars, where the car are in binary tree according to the car id. Write function that returns all the cars that are 100 km from me, in order by their car id