Project Euler #92: Square digit chains

Hacker
Rank
Score
1421
flag of India
25.00
1422
flag of India
25.00
1423
flag of United States
25.00
1424
flag of Russia
25.00
1425
flag of Romania
25.00
1426
flag of India
25.00
1427
flag of India
25.00
1428
flag of India
25.00
1429
flag of India
25.00
1430
flag of India
25.00
1433
flag of India
25.00
1437
flag of United States
25.00
1438
flag of India
25.00
1440
flag of Argentina
25.00
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