Project Euler #14: Longest Collatz sequence

Hacker
Rank
Score
261
flag of United States
100.00
262
flag of India
100.00
263
flag of United States
100.00
264
flag of Spain
100.00
265
flag of China
100.00
266
flag of Singapore
100.00
267
flag of India
100.00
269
flag of United States
100.00

[deleted]

270
flag of null
100.00
271
flag of Singapore
100.00
273
flag of Turkey
100.00
274
flag of United Kingdom
100.00
275
flag of United States
100.00
276
flag of United States
100.00
277
flag of China
100.00
278
flag of Bulgaria
100.00
279
flag of India
100.00
280
flag of Bulgaria
100.00
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