I would like to thank my parents for giving me education, guidance, and advice over all these years and for helping me to be a better human being and professional. A very special thanks to my husband, for being patient and supportive and giving me encouragement.

I would also like to thank my professors from FAESA, who taught me about the algorithms and data structures presented in this book.

Also, a big thanks to my friends and readers for all the support. It is really nice when people get in touch at conferences and by any social network mentioning that they have read one of my books and give me feedback. Thank you very much!