Sum of prime numbers Andrey Tsvetkov

Compute the sum of all prime numbers in a stream of binary integers as fast as possible.

Input: 1 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: The uint64 sum of all values that are prime, printed as a decimal string.

Back to listJan 24, 2026 01:56zielajzielajError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 06:58M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 06:58010,107,8241,107,00002,113,536expected "6442459076 ", got "2305422578 "
2May 17, 2026 06:5808,346,3371,116,00002,113,536expected "6442459076 ", got "2305422578 "
3May 17, 2026 06:5808,339,5101,121,00002,113,536expected "6442459076 ", got "2305422578 "
4Jan 24, 2026 01:563,37321,269,9261,979,000989,0002,351,104
5Jan 24, 2026 01:563,46422,613,9832,032,0001,016,0002,355,200
6Jan 24, 2026 01:563,50122,276,2502,054,0001,027,0002,359,296