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 4, 2026 22:58vahookvahookError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:07M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:0708,531,9011,206,00002,113,536expected "6442459076 ", got "8136 "
2May 17, 2026 07:0709,896,4051,211,00002,113,536expected "6442459076 ", got "8136 "
3May 17, 2026 07:07011,375,4681,204,00002,113,536expected "6442459076 ", got "8136 "
4Feb 4, 2026 22:583,47520,505,5621,019,0002,039,0002,502,656
5Feb 4, 2026 22:583,48520,190,1281,022,0002,045,0002,281,472
6Feb 4, 2026 22:583,49417,760,1491,025,0002,050,0002,494,464