HackerRank: There are three questions. 1. searching and sorting; 2. interpolation; 3. extrapolation.
Research And Development Scientist Interview Questions
14,586 research and development scientist interview questions shared by candidates
Three questions, two prediction one in time series and regression, one algorithm one.
How many integers n such that n^n is a perfect square are there in range [100;400] ?
Two tubes (infinite right circular cylinders) A and B of equal radii 3 cross at the angle 90 degrees (i.e. their axial lines cross at that angle). What is the volume of the intersection of A and B?
A man has two children, at least one of them is a boy. What is the probability that he has two boys?
what would you do with a situation where you have multiple priorities?
Segment a long string into a set of valid words using a dictionary. Return false if the string cannot be segmented. What is the complexity of your solution?
Predict flight_delayed=1,0 from past flight data (airline, lat/long of origin and dest airport, time stamp of departure and arrival time...)
How can we improve our services?
A parting of n is a list P=(a1,a2,a3,....) such that a1<=a2<=a3.... and n=a1+a2+a3+... For example for n=5 the partings are: (1,1,1,1,1), (1,1,1,2),(1,1,3),(1,2,2),(1,4),(2,3),(5) Define X(P) as the number of 1s in a parting and Y(P) as the number of different numbers, for example X(1,1,1,2)=3 and Y(1,1,1,2)=2. For a certain n, show that the sum of all X(P) is equal to the sum of all Y(P), for example for n=5 both are equal to 12
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