Project Euler #28: Number spiral diagonals

Hacker
Rank
Score
6261
flag of India
25.00
6265
flag of India
25.00
6268
flag of India
25.00
6269
flag of India
25.00
6270
flag of India
25.00
6272
flag of India
25.00
6273
flag of India
25.00
6274
flag of India
25.00
6275
flag of India
25.00
6276
flag of India
25.00
6277
flag of Germany
25.00

[deleted]

6278
flag of null
25.00
6279
flag of India
25.00
6280
flag of India
25.00
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