Language Details: Ruby

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Problems solved

Qualification Round (1858 solutions by 431 contestants):
Round 1A (385 solutions by 144 contestants):
  • The Last Word: 143 small solutions, 134 large solutions.
  • Rank and File: 46 small solutions, 40 large solutions.
  • BFFs: 13 small solutions, 9 large solutions.
Round 1B (243 solutions by 105 contestants):
Round 1C (160 solutions by 69 contestants):
Round 2 (32 solutions by 16 contestants):

Submission Origin

United States (86 contestants)
Japan (61 contestants)
India (29 contestants)
Canada (20 contestants)
Brazil (18 contestants)
France (15 contestants)
China (14 contestants)
Taiwan (12 contestants)
United Kingdom (12 contestants)
Spain (11 contestants)
Thailand (9 contestants)
Mexico (8 contestants)
Nigeria (8 contestants)
Philippines (8 contestants)
South Korea (8 contestants)
Sweden (8 contestants)
Australia (7 contestants)
Chile (7 contestants)
Germany (7 contestants)
Greece (6 contestants)
Israel (6 contestants)
Poland (6 contestants)
Romania (5 contestants)
Belarus (4 contestants)
Netherlands (4 contestants)
New Zealand (4 contestants)
Pakistan (4 contestants)
Portugal (4 contestants)
Ukraine (4 contestants)
Argentina (3 contestants)
Egypt (3 contestants)
Hong Kong (3 contestants)
Hungary (3 contestants)
Indonesia (3 contestants)
Jordan (3 contestants)
Russia (3 contestants)
Austria (2 contestants)
Colombia (2 contestants)
Czech Republic (2 contestants)
Ecuador (2 contestants)
Jamaica (2 contestants)
Slovakia (2 contestants)
Switzerland (2 contestants)
Turkey (2 contestants)
Vietnam (2 contestants)
Algeria (1 contestant)
Antarctica (1 contestant)
Belgium (1 contestant)
Brunei (1 contestant)
Bulgaria (1 contestant)
Croatia (1 contestant)
Dominican Republic (1 contestant)
Estonia (1 contestant)
Latvia (1 contestant)
Moldova (1 contestant)
Nicaragua (1 contestant)
Norway (1 contestant)
Saudi Arabia (1 contestant)
Singapore (1 contestant)
Slovenia (1 contestant)
South Africa (1 contestant)
Venezuela (1 contestant)