Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Tuesday, February 03, 2004, 12:15 pm

Duration: This information is not available in the database

Location: This information is not available in the database

Speaker: Sandra Roost

Seventeen lines and one-hundred-and-one points

In his paper "Seventeen lines and one-hundred-and-one points", Woeginger describes a simple a polynomial-time algorithm to find the solution of the following curious problem: "Given two positive integers S and Q, does there exist a sequence of positive integers that add up to S and whose squares add up to Q?" Along with this problem, he presents a second one about arranging m lines in the Euclidean plane in a way that there are exactly n points of intersection.
In this talk, I present the two problems, their connection, the algorithm along with its analysis and the outlook to other problems.


Upcoming talks     |     All previous talks     |     Talks by speaker     |     Upcoming talks in iCal format (beta version!)

Previous talks by year:   2018  2017  2016  2015  2014  2013  2012  2011  2010  2009  2008  2007  2006  2005  2004  2003  2002  2001  2000  1999  1998  1997  1996  

Information for students and suggested topics for student talks


Automatic MiSe System Software Version 1.4803M   |   admin login