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 16:41vahookvahookError
Source Code

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

Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:13M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:1309,106,8361,199,00002,117,632expected "6442459076 ", got " "stderr
2May 17, 2026 07:13010,987,6491,195,00002,117,632expected "6442459076 ", got " "stderr
3May 17, 2026 07:13010,270,7111,203,00002,117,632expected "6442459076 ", got " "stderr
4Feb 5, 2026 16:413,45322,454,0951,013,0002,026,0002,277,376
5Feb 5, 2026 16:413,47821,355,3311,020,0002,041,0002,498,560
6Feb 5, 2026 16:413,48819,979,4391,023,0002,046,0002,281,472
7Feb 5, 2026 16:413,48920,035,3021,023,0002,047,0002,494,464
8Feb 5, 2026 16:413,49218,324,7261,024,0002,049,0002,494,464
9Feb 5, 2026 16:413,50120,426,7881,027,0002,054,0002,498,560