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Problems solved

Qualification Round (2877 solutions by 1347 contestants):
Round 1A (331 solutions by 145 contestants):
  • Mushroom Monster: 137 small solutions, 126 large solutions.
  • Haircut: 44 small solutions, 14 large solutions.
  • Logging: 7 small solutions, 3 large solutions.
Round 1B (68 solutions by 42 contestants):
Round 1C (218 solutions by 93 contestants):
Round 2 (65 solutions by 23 contestants):

Submission Origin

India (802 contestants)
United States (60 contestants)
Brazil (49 contestants)
China (45 contestants)
South Korea (43 contestants)
Taiwan (33 contestants)
France (32 contestants)
Thailand (20 contestants)
Australia (18 contestants)
Greece (18 contestants)
Japan (17 contestants)
Hong Kong (12 contestants)
Canada (11 contestants)
Italy (11 contestants)
Bangladesh (10 contestants)
Spain (10 contestants)
Turkey (10 contestants)
Singapore (9 contestants)
Sweden (9 contestants)
Portugal (8 contestants)
Mexico (7 contestants)
Romania (7 contestants)
Slovakia (7 contestants)
United Kingdom (7 contestants)
Egypt (6 contestants)
Germany (6 contestants)
Morocco (6 contestants)
Netherlands (6 contestants)
Indonesia (5 contestants)
New Zealand (5 contestants)
Norway (5 contestants)
Poland (5 contestants)
Russia (5 contestants)
Tunisia (5 contestants)
Cameroon (4 contestants)
Chile (4 contestants)
Czech Republic (4 contestants)
Jordan (4 contestants)
Algeria (3 contestants)
Bulgaria (3 contestants)
Israel (3 contestants)
Philippines (3 contestants)
Argentina (2 contestants)
Bolivia (2 contestants)
Colombia (2 contestants)
Iran (2 contestants)
Kyrgyzstan (2 contestants)
Pakistan (2 contestants)
Senegal (2 contestants)
Venezuela (2 contestants)
Afghanistan (1 contestant)
Antarctica (1 contestant)
Austria (1 contestant)
Azerbaijan (1 contestant)
Belarus (1 contestant)
Cook Islands (1 contestant)
Croatia (1 contestant)
Denmark (1 contestant)
Djibouti (1 contestant)
Dominican Republic (1 contestant)
Finland (1 contestant)
Georgia (1 contestant)
Hungary (1 contestant)
Jamaica (1 contestant)
Malaysia (1 contestant)
Peru (1 contestant)
Saudi Arabia (1 contestant)
Serbia (1 contestant)
Slovenia (1 contestant)
South Africa (1 contestant)
Sri Lanka (1 contestant)
Switzerland (1 contestant)
Syria (1 contestant)
Uruguay (1 contestant)
Vietnam (1 contestant)