Project Euler #189: Tri-colouring a triangular grid

Hacker
Rank
Score
201
flag of United Kingdom
50.00
202
flag of Russia
50.00
205
flag of India
50.00
206
flag of Philippines
50.00
207
flag of India
50.00
209
flag of India
50.00
210
flag of India
50.00
211
flag of Italy
50.00
212
flag of India
50.00
213
flag of United States
50.00
214
flag of India
50.00
215
flag of India
50.00
216
flag of United States
50.00
217
flag of India
50.00
218
flag of Poland
50.00
219
flag of Italy
50.00
220
flag of United States
50.00
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