Project Euler #42: Coded triangle numbers

Hacker
Rank
Score
261
flag of United States
100.00
262
flag of India
100.00
263
flag of India
100.00
264
flag of India
100.00
265
flag of Singapore
100.00
266
flag of Bulgaria
100.00
267
flag of Bulgaria
100.00
268
flag of India
100.00
269
flag of Bulgaria
100.00
270
flag of India
100.00
271
flag of India
100.00

[deleted]

272
flag of Iran
100.00
273
flag of India
100.00
275
flag of United States
100.00
276
flag of Egypt
100.00
277
flag of India
100.00
278
flag of China
100.00
279
flag of China
100.00
280
flag of India
100.00
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