Project Euler #14: Longest Collatz sequence

Hacker
Rank
Score
661
flag of China
100.00
662
flag of India
100.00
663
flag of United States
100.00
664
flag of United States
100.00
665
flag of Turkey
100.00
666
flag of United States
100.00
667
flag of Russian Federation
100.00
668
flag of India
100.00
669
flag of Czech Republic
100.00
670
flag of Ireland
100.00
671
flag of India
100.00
672
flag of India
100.00
673
flag of Brazil
100.00
674
flag of India
100.00
675
flag of India
100.00
676
flag of United States
100.00
677
flag of India
100.00
678
flag of United States
100.00
680
flag of Malaysia
100.00
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