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 18, 2026 05:22Josu San MartinJosu San MartinError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:44M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:45010,568,2831,519,00002,117,632expected "6442459076 ", got "2147486015 "
2May 17, 2026 07:4508,704,6581,520,00002,117,632expected "6442459076 ", got "2147486015 "
3May 17, 2026 07:4509,459,2161,519,00002,117,632expected "6442459076 ", got "2147486015 "
4Jan 18, 2026 05:2211,45524,745,0947,056,0003,024,0002,265,088
5Jan 18, 2026 05:2211,47527,525,3837,069,0003,029,0002,281,472
6Jan 18, 2026 05:2211,64923,523,4748,201,0002,050,0002,281,472