Project Euler #189: Tri-colouring a triangular grid

Hacker
Rank
Score
441
flag of Germany
13.33
443
flag of Turkey
13.33
445
flag of France
13.33
446
flag of France
13.33
447
flag of India
13.33
448
flag of India
13.33
449
flag of India
13.33
450
flag of United Kingdom
13.33
452
flag of Pakistan
13.33
454
flag of Poland
13.33
455
flag of India
13.33
456
flag of France
13.33
457
flag of Thailand
12.22

[deleted]

458
flag of null
11.11
459
flag of India
11.11
460
flag of India
11.11
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