Booking.com Software Developer interview questions

1. Balanced parenthesis Create function that will determine are the parenthesis balanced in a given string boolean isBalanced(string) a(bcd)d => true (kjds(hfkj)sdhf => false (sfdsf)(fsfsf => false {[]}() => true {[}] => false 2. Sort the content of the a file based on second field, e.g. Input file: Jervie,12,M Jaimy,11,F Tony,23,M Janey,11,F Output file: Jaimy,11,F Janey,11,F Jervie,12,M Tony,23,M don’t worry about open file, close file etc 1Gb for memory but 4Gb for file

After an initial phone call to introduce the recruiter and the applicant, they'll set up a technical screen over the phone and send you some challenge questions to solve before the call. There are only a few and each one only takes a few minutes (maybe 10, or 15 at most). In the phone call, they'll review your answers to the questions and give you a couple other small challenges to solve in front of them. After that call, if all goes well, you will be invited to interview with them in person, and this is quite a positive experience.