This book constitutes the refereed proceedings of the 20th International Symposium on
Fundamentals of Computation Theory FCT 2015 held in Gdansk Poland in August 2015. The 27
revised full papers presented were carefully reviewed and selected from 60 submissions. The
papers cover topics in three main areas: algorithms formal methods and emerging fields and
are organized in topical sections on geometry combinatorics text algorithms complexity and
Boolean functions languages set algorithms covering and traversal graph algorithms and
networking applications anonymity and indistinguishability graphs automata and dynamics
and logic and games.
