Contacted by a recruiter through school.

Had a simple HR screening interview before the onsite.

The onsite had 4 interviews, and the questions were mostly algorithmic.

Interview questions:

• Given an unsorted array of numbers from 1 to n with a number missing, find the missing number.
• Given a dictionary and a function that returns if a word is in the dictionary, create a function that takes a non-space-delimited string and outputs the same string with words separated by spaces.
• I forget the third one.
• Given a matrix of 1s and 0s, replace every value in a column or row with 0 if 0 is present in it.

Given a dictionary and a function that returns if a word is in the dictionary, create a function that takes a non-space-delimited string and outputs the same string with words separated by spaces.