This book constitutes the thoroughly refereed post-workshop proceedings of the 25th
International Workshop on Combinatorial Algorithms IWOCA 2014 held in Duluth MN USA in
October 2014. The 32 revised full papers presented were carefully reviewed and selected from a
total of 69 submissions. The papers focus on topics such as Algorithms and Data Structures
Combinatorial Enumeration Combinatorial Optimization Complexity Theory (Structural and
Computational) Computational Biology Databases (Security Compression and Information
Retrieval) Decompositions and Combinatorial Designs Discrete and Computational Geometry as
well as Graph Drawing and Graph Theory. IWOCA is a yearly forum for researchers in designing
algorithms field to advance creativeness of intersection between mathematics and computer
science. This is the first time this conference is being held in U.S.