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 7, 2026 03:39zielajzielajError
Source Code

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

Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:07M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:08010,661,5971,129,00002,113,536expected "6442459076 ", got "2305422362 "
2May 17, 2026 07:0809,354,6891,157,00002,113,536expected "6442459076 ", got "2305422362 "
3May 17, 2026 07:08010,057,2581,097,00002,113,536expected "6442459076 ", got "2305422362 "
4Feb 7, 2026 03:393,46720,199,0941,017,0002,034,0002,355,200
5Feb 7, 2026 03:393,47721,420,4831,020,0002,040,0002,359,296
6Feb 7, 2026 03:394,04420,307,7453,559,00002,347,008