Project Euler #56: Powerful digit sum

Hacker
Rank
Score
662
flag of India
100.00
663
flag of India
100.00
664
flag of India
100.00
665
flag of Hong Kong
100.00
667
flag of India
100.00
669
flag of Germany
100.00
671
flag of New Zealand
100.00
672
flag of France
100.00
673
flag of Sudan
100.00
674
flag of United States
100.00
676
flag of Chile
100.00
677
flag of United Kingdom
100.00
678
flag of Korea, Republic of
100.00
679
flag of Republic of Korea
100.00
680
flag of Republic of Korea
100.00
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