2 interviewer sat in front of me, one of them talked all along, the other mostly just sat there, giving comments here and there. They told me about the company, their products, the department and the offered role. Then they asked me to tell about myself, describe a project I've worked on and asked a few specific questions about the project.

Then they moved on to technical questions, the first was a given code of a function that I had to read and describe in a sentence what the function does, then there were two more questions which were problems described to me and I had to come up with a solution and then write it in code

Given a matrix (two-dimentional array), a row index i, column index j, width and lengh, return the average of a single position in the sub-matrix of size width*length starting at (i,j)