Public information about Zeng Zonggen is limited. What can currently be confirmed centers on his authorship of the book ACM Programming (2nd Edition). The book falls under programming design, and judging from its title and category, it is intended for algorithm contests and programming training, serving readers who prepare for ACM and similar programming competitions. As the author, Zeng Zonggen took on the work of organizing content and sorting out knowledge in this field, bringing together ideas and methods related to competitive programming for learners to consult. Since the database contains only one work by him and lacks verifiable public information such as biography, education, and professional background, no further account of his experience can be given at present. Based on the available material, he can be described as an author with practical writing experience in the direction of programming contests, whose work offers an introductory and practice-oriented reader for related learners and shows a clear orientation toward contest training within programming design books.
