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Problems solved

Qualification Round (2961 solutions by 698 contestants):
  • Bot Trust: 617 small solutions, 604 large solutions.
  • Magicka: 499 small solutions, 405 large solutions.
  • Candy Splitting: 375 small solutions, 274 large solutions.
  • GoroSort: 96 small solutions, 91 large solutions.
Round 1A (270 solutions by 138 contestants):
Round 1B (510 solutions by 236 contestants):
Round 1C (713 solutions by 243 contestants):
Round 2 (234 solutions by 81 contestants):
Round 3 (49 solutions by 13 contestants):

Submission Origin

United States (94 contestants)
India (82 contestants)
Russia (43 contestants)
China (33 contestants)
Japan (33 contestants)
Canada (27 contestants)
Brazil (25 contestants)
United Kingdom (24 contestants)
Poland (23 contestants)
Ukraine (23 contestants)
Israel (20 contestants)
Thailand (19 contestants)
Australia (18 contestants)
Hungary (16 contestants)
Argentina (14 contestants)
France (14 contestants)
Romania (14 contestants)
Egypt (13 contestants)
Spain (12 contestants)
Pakistan (11 contestants)
Czech Republic (8 contestants)
Indonesia (8 contestants)
Belarus (7 contestants)
Germany (7 contestants)
South Korea (7 contestants)
New Zealand (6 contestants)
South Africa (6 contestants)
Vietnam (6 contestants)
Croatia (5 contestants)
Malaysia (5 contestants)
Netherlands (5 contestants)
Peru (5 contestants)
Belgium (4 contestants)
Colombia (4 contestants)
Iran (4 contestants)
Kazakhstan (4 contestants)
Slovakia (4 contestants)
Sweden (4 contestants)
Turkey (4 contestants)
Austria (3 contestants)
Greece (3 contestants)
Ireland (3 contestants)
Italy (3 contestants)
Lithuania (3 contestants)
Mexico (3 contestants)
Singapore (3 contestants)
Algeria (2 contestants)
Chile (2 contestants)
Denmark (2 contestants)
Ghana (2 contestants)
Guatemala (2 contestants)
Latvia (2 contestants)
Norway (2 contestants)
Philippines (2 contestants)
Venezuela (2 contestants)
Azerbaijan (1 contestant)
Bangladesh (1 contestant)
Barbados (1 contestant)
Bolivia (1 contestant)
Bulgaria (1 contestant)
Estonia (1 contestant)
Ethiopia (1 contestant)
Finland (1 contestant)
Georgia (1 contestant)
Hong Kong (1 contestant)
Kyrgyzstan (1 contestant)
Macedonia (1 contestant)
Moldova (1 contestant)
Morocco (1 contestant)
North Korea (1 contestant)
Oman (1 contestant)
Palestinian Territory (1 contestant)
Serbia (1 contestant)
Sri Lanka (1 contestant)
Switzerland (1 contestant)
Syria (1 contestant)
Togo (1 contestant)