Project Euler #24: Lexicographic permutations

Hacker
Rank
Score
6401
flag of India
33.33
6402
flag of India
33.33
6403
flag of India
33.33
6404
flag of United States
33.33
6406
flag of India
33.33
6407
flag of Singapore
33.33
6408
flag of India
33.33
6410
flag of India
33.33
6411
flag of India
33.33
6412
flag of India
33.33
6414
flag of India
33.33
6415
flag of India
33.33
6416
flag of India
33.33
6417
flag of India
33.33
6418
flag of India
33.33
6419
flag of India
33.33
6420
flag of India
33.33
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