This book constitutes the refereed proceedings of the 11th Latin American Symposium on Theoretical Informatics, LATIN 2014, held in Montevideo, Uruguay, in March/April 2014. The 65 papers presented together with 5 abstracts were carefully reviewed and selected from 192 submissions. The papers address a variety of topics in theoretical computer science with a certain focus on complexity, computational geometry, graph drawing, automata, computability, algorithms on graphs, algorithms, random structures, complexity on graphs, analytic combinatorics, analytic and enumerative combinatorics, approximation algorithms, analysis of algorithms, computational algebra, applications to bioinformatics, budget problems and algorithms and data structures.

This Festschrift volume, published in honour of J. Ian Munro, contains contributions written by some of his colleagues, former students, and friends. In celebration of his 66th birthday the colloquium "Conference on Space Efficient Data Structures, Streams and Algorithms" was held in Waterloo, ON, Canada, during August 15-16, 2013. The articles presented herein cover some of the main topics of Ian's research interests. Together they give a good overall perspective of the last 40 years of research in algorithms and data structures.

This volume contains the proceedings of the LATIN 2000 International Conference (LatinAmerican Theoretical INformatics), to be held in Punta del Este, Uruguay,April 10-14, 2000. This is the fourth event in the series following Sao " Paulo, Brazil (1992),Valparaiso, Chile (1995), and Campinas, Brazil (1998). LATIN has established itself as a fully refereed conference for theoretical computer science research in Latin America. It has also strengthened the ties between local and international scientific communities. We believe that this volume reflects the breadth and depth of this interaction. We received 87 submissions, from 178 different authors in 26 different countries. Eachpaperwasassignedtothreeprogramcommitteemembers.TheProgramCommittee selected 42 papers based on approximately 260 referee reports. In addition to these contributed presentations, the conference included six invited talks. The assistance of many organizations and individuals was essential for the success ofthismeeting.Wewouldliketothankallofoursponsorsandsupportingorganizations. Ricardo Baeza-Yates, Claudio Lucchesi, Arnaldo Moura, and Imre Simon provided - sightful advice and shared with us their experiences as organizers of previous LATIN meetings. Joaquin Goyoaga and Patricia Corbo helped in the earliest stages of the - ganization in various ways, including finding Uruguayan sources of financial support. SeCIU(ServicioCentraldeInformatica ' Universitario,UniversidaddelaRepublica) ' p- vided us with the necessary communication infrastructure. The meeting of the program committee was hosted by the Instituto de Matematica ' e Estat stica, i Universidade de Sao " Paulo, which also provided us with the Intranet site for discussions among PC members.