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 16:51vahookvahookError
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 06:5908,487,0221,218,00002,117,632expected "6442459076 ", got " "stderr
2May 17, 2026 06:59011,113,6771,199,00002,117,632expected "6442459076 ", got " "stderr
3May 17, 2026 06:5908,534,1241,138,00002,117,632expected "6442459076 ", got " "stderr
4Feb 5, 2026 16:513,46517,986,0941,016,0002,033,0002,535,424
5Feb 5, 2026 16:513,46816,615,1761,017,0002,035,0002,498,560
6Feb 5, 2026 16:513,52623,171,9951,034,0002,069,0002,502,656