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 15, 2026 01:55zielajzielajError
Source Code

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

Challenge History
DateChallengerCostTypeStatus
May 17, 2026 06:42M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 06:42011,206,4611,034,00002,113,536expected "6442459076 ", got "2305422362 "
2May 17, 2026 06:4208,688,0791,141,00002,113,536expected "6442459076 ", got "2305422362 "
3May 17, 2026 06:4208,228,5011,029,00002,113,536expected "6442459076 ", got "2305422362 "
4Feb 15, 2026 01:553,40220,933,4071,996,000998,0002,445,312
5Feb 15, 2026 01:553,43318,458,4592,014,0001,007,0002,441,216
6Feb 15, 2026 01:553,45319,561,8301,013,0002,026,0002,510,848