Project Euler #189: Tri-colouring a triangular grid

Hacker
Rank
Score
222
flag of Israel
50.00
223
flag of India
50.00
224
flag of India
50.00
225
flag of United States
50.00
230
flag of Colombia
50.00
232
flag of India
50.00
234
flag of China
50.00
235
flag of India
50.00
236
flag of Turkey
50.00
237
flag of India
50.00
238
flag of India
50.00
239
flag of Romania
50.00
240
flag of India
50.00
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