Campamento Peruano de Programación Día 4

Problemas:

http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3550
http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3544
http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=2391
https://icpcarchive.ecs.baylor.edu/index.php?option=onlinejudge&page=show_problem&problem=2185
http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=1849
http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=1004
http://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3520

Ranking:

http://ahmed-aly.com/Standings.jsp?ID=9262