Round 3: Lost Password

157 correct small sets and 1 correct large sets. View problem statement or contest analysis.

Languages

C++ (127 sets)
Java (13 sets)
Python (7 sets)

C (3 sets)
Pascal (3 sets)
C# (2 sets)

D (2 sets)
Ruby (1 set)

Russia (35 contestants)
China (34 contestants)
Japan (13 contestants)
Poland (10 contestants)
Belarus (9 contestants)
Ukraine (8 contestants)
United States (7 contestants)
Thailand (4 contestants)
Iran (3 contestants)
Slovakia (3 contestants)

South Korea (3 contestants)
Taiwan (3 contestants)
Australia (2 contestants)
Bulgaria (2 contestants)
Czech Republic (2 contestants)
Hong Kong (2 contestants)
India (2 contestants)
Singapore (2 contestants)
Slovenia (2 contestants)
United Kingdom (2 contestants)

... (1 contestant)
Canada (1 contestant)
France (1 contestant)
Georgia (1 contestant)
Germany (1 contestant)
Kyrgyzstan (1 contestant)
South Africa (1 contestant)
Spain (1 contestant)
Switzerland (1 contestant)