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 23, 2026 04:01zielajzielajError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:00M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:00010,676,2361,294,00002,113,536expected "6442459076 ", got "2305422578 "
2May 17, 2026 07:00010,200,6251,127,00002,113,536expected "6442459076 ", got "2305422578 "
3May 17, 2026 07:0008,806,0341,126,00002,113,536expected "6442459076 ", got "2305422578 "
4Jan 23, 2026 04:013,41319,494,8111,001,0002,002,0002,355,200
5Jan 23, 2026 04:013,46725,189,7281,017,0002,034,0002,277,376
6Jan 23, 2026 04:014,21518,249,4603,709,00002,347,008