Round 3: No Cheating

510 correct small sets and 68 correct large sets. View problem statement or contest analysis.

Compact solutions

Solved in...

C++ (472 sets)
Java (64 sets)
C# (17 sets)
C (8 sets)
Pascal (8 sets)
Python (5 sets)
Haskell (1 set)
Lisp (1 set)
Visual Basic (1 set)

Submission Origin

China (109 contestants)
Russia (70 contestants)
United States (62 contestants)
Poland (27 contestants)
Ukraine (26 contestants)
Japan (24 contestants)
India (15 contestants)
Canada (13 contestants)
South Korea (13 contestants)
Germany (12 contestants)
Slovakia (11 contestants)
Bangladesh (10 contestants)
Belarus (10 contestants)
Brazil (9 contestants)
Netherlands (8 contestants)
Romania (8 contestants)
Argentina (6 contestants)
Singapore (6 contestants)
Taiwan (6 contestants)
Bulgaria (5 contestants)
Hong Kong (5 contestants)
Mexico (5 contestants)
Spain (5 contestants)
Serbia and Montenegro (4 contestants)
United Kingdom (4 contestants)
Egypt (3 contestants)
France (3 contestants)
Georgia (3 contestants)
Indonesia (3 contestants)
Sweden (3 contestants)
Australia (2 contestants)
Denmark (2 contestants)
Greece (2 contestants)
Switzerland (2 contestants)
Vietnam (2 contestants)
Armenia (1 contestant)
Austria (1 contestant)
Bolivia (1 contestant)
Colombia (1 contestant)
Estonia (1 contestant)
Kazakhstan (1 contestant)
Latvia (1 contestant)
Lithuania (1 contestant)
Moldova (1 contestant)
Peru (1 contestant)
Thailand (1 contestant)
Venezuela (1 contestant)
Virgin Islands (1 contestant)