The problem set for the 2013 World Finals is officially live online. You can view all the problems here:
http://icpc.baylor.edu/download/worldfinals/problems/icpc2013.pdf
At the top of each problem is the problem name and time limit. The time limit is how long the program should run to generate the correct data. If the program does not generate the data in the amount of time indicated on the problem page, the problem is rejected.
Sample input and output are also included in the problem set. The sample output must generate the indicated sample output in the packet. The judges use a different set of input and output data when judging each problem.