Project Euler #28: Number spiral diagonals

Hacker
Rank
Score
721
flag of China
100.00
723
flag of Sweden
100.00
724
flag of Israel
100.00
725
flag of India
100.00
726
flag of Hungary
100.00
727
flag of Sri Lanka
100.00
728
flag of Republic of Korea
100.00
730
flag of Poland
100.00
731
flag of China
100.00
732
flag of Finland
100.00
735
flag of Italy
100.00
737
flag of India
100.00
738
flag of Mongolia
100.00
739
flag of India
100.00
740
flag of Philippines
100.00
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