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 listFeb 5, 2026 17:34vahookvahookError
Source Code

Source code access is restricted. Log in to request access.

Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:08M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:0809,691,2941,207,00002,117,632expected "6442459076 ", got " "stderr
2May 17, 2026 07:0808,760,3011,135,00002,117,632expected "6442459076 ", got " "stderr
3May 17, 2026 07:08010,111,3671,203,00002,117,632expected "6442459076 ", got " "stderr
4Feb 5, 2026 17:343,48218,449,3521,021,0002,043,0002,494,464
5Feb 5, 2026 17:343,48521,015,0731,022,0002,045,0002,494,464
6Feb 5, 2026 17:343,73021,360,3552,188,0001,094,0002,494,464