Cracking the Coding Interview

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Cracking the Coding Interview: 189 Programming Questions and Solutions
AuthorGayle Laakmann McDowell
SubjectJob interviews
Coding interviews

Cracking the Coding Interview: 189 Programming Questions and Solutions is a book by Gayle Laakmann McDowell about coding interviews.[1][2] It describes typical problems in computer science that are often asked during coding interviews, typically on a whiteboard during job interviews at big technology companies such as Google, Apple, Microsoft,, Facebook and Palantir Technologies.

First published in 2008, it has been translated into seven languages: Russian, Simplified Chinese, Traditional Chinese, Japanese, Polish, Spanish, and Korean. It describes solutions to common problems set in coding job interviews.[3][4] The sixth edition of the textbook was published in 2015.[2]

The book has been cited in peer reviewed papers in scientific journals such as PeerJ.[5][6][7]


  1. ^ Hess, Ken (2012-02-09). "Women in Tech: Gayle Laakmann McDowell excels beyond the stereotypes". ZDNet. Archived from the original on 2019-12-31.
  2. ^ a b McDowell, Gayle Laakmann (2015). Cracking the coding interview : 189 programming questions and solutions (6th ed.). Palo Alto, CA. ISBN 978-0-9847828-5-7. OCLC 913477191.
  3. ^ Ravisankar, Vivek (2018). "Gayle Laakmann McDowell Deconstructs the Engineering Interview Process". HackerRank. Archived from the original on 2019-12-31.
  4. ^ McDowell, Gayle Laakman (2012). "Tips to Crack the Coding Interview".
  5. ^ Wyrich, Marvin; Graziotin, Daniel; Wagner, Stefan (2019). "A theory on individual characteristics of successful coding challenge solvers". PeerJ Computer Science. 5: e173. doi:10.7717/peerj-cs.173. ISSN 2376-5992.
  6. ^ Hall Jr., Phillip; Gosha, Kinnis (2018). "The Effects of Anxiety and Preparation on Performance in Technical Interviews for HBCU Computer Science Majors". SIGMIS-CPR'18: Proceedings of the 2018 ACM SIGMIS Conference on Computers and People Research: 64–69. doi:10.1145/3209626.3209707.
  7. ^ Ford, Denae; Barik, Titus; Rand-Pickett, Leslie; Parnin, Chris (2017). "The Tech-Talk Balance: What Technical Interviewers Expect from Technical Candidates". IEEE/ACM 10th International Workshop on Cooperative and Human Aspects of Software Engineering (CHASE): 43–48. doi:10.1109/CHASE.2017.8.