Project Euler #24: Lexicographic permutations

Hacker
Rank
Score
6421
flag of India
33.33
6422
flag of India
33.33
6424
flag of India
33.33
6425
flag of India
33.33
6426
flag of Germany
33.33
6427
flag of India
33.33
6428
flag of United States
33.33
6429
flag of Sri Lanka
33.33
6431
flag of United States
33.33
6432
flag of India
33.33
6433
flag of India
33.33
6435
flag of India
33.33
6438
flag of Sri Lanka
33.33
6439
flag of Canada
33.33
6440
flag of India
33.33
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