Thisvolumecontainsthe66contributedpapersandabstractsofthethreeinvited lecturespresentedatthe11thAnnualEuropeanSymposiumonAlgorithms(ESA 2003), held in Budapest, September 16-19, 2003. The papers in each section of the proceedings are arranged alphabetically. The three distinguished invited speakers were Bernard Chazelle, Roberto Tamassia, and Eva Tardos. Forthesecondtime, ESAhadtwotracks, withseparateprogramcommittees, which dealt respectively with: The design and mathematical analysis of algorithms (the "Design and Analysis" track); Real-world applications, engineering, and experimental...

This book constitutes the refereed proceedings of the Third Italian Conference on Algorithms and Complexity, CIAC'97, held in Rome, Italy in March 1997.
The 25 revised full papers included in the volume were carefully selected from a total of 74 submissions; also included is an invited paper and an invited abstract. All in all, the papers present an interesting snapshot of current research activities and recent results in theory and applications of sequential, distributed, and parallel algorithms, data structures, and computational complexity.