Project Euler #42: Coded triangle numbers

Hacker
Rank
Score
5461
flag of Australia
83.33
5462
flag of India
83.33
5463
flag of United States
83.33
5464
flag of United States
83.33
5465
flag of United States
83.33
5466
flag of United States
66.67
5467
flag of Croatia
66.67
5468
flag of India
66.67
5470
flag of India
66.67
5471
flag of India
66.67
5472
flag of United Kingdom
66.67
5473
flag of United States
66.67
5474
flag of India
66.67
5475
flag of India
66.67
5476
flag of Turkey
66.67
5477
flag of India
66.67
5479
flag of India
66.67
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