Project Euler #14: Longest Collatz sequence

Hacker
Rank
Score
13121
flag of Pakistan
38.46
13122
flag of India
38.46
13123
flag of Sri Lanka
38.46
13124
flag of India
38.46
13125
flag of Sri Lanka
38.46
13126
flag of India
38.46
13128
flag of United States
38.46

[deleted]

13129
flag of null
38.46
13130
flag of India
38.46
13131
flag of Philippines
38.46
13132
flag of Germany
38.46
13133
flag of India
38.46
13134
flag of Albania
38.46
13135
flag of India
38.46
13138
flag of India
38.46
13140
flag of Sri Lanka
38.46
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