Problems from Southwestern Europe Regional Contest (SWERC) 2011

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Distributing Ballot Boxes	0.04	181	2392	1959	82%	3.4Medium	en
Guess the Numbers	0.01	357	236	122	52%	7.9Hard	en
Non-negative Partial Sums	0.04	420	175	113	65%	6.6Hard	en
Remoteland	0.13	644	80	63	79%	5.1Medium	en