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 24, 2026 01:30zielajzielajError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 06:55M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 06:55010,642,8311,293,00002,113,536expected "6442459076 ", got "2305422578 "
2May 17, 2026 06:55010,824,0101,280,00002,113,536expected "6442459076 ", got "2305422578 "
3May 17, 2026 06:55010,009,5621,458,00002,113,536expected "6442459076 ", got "2305422578 "
4Jan 24, 2026 01:303,43121,178,6782,013,0001,006,0002,359,296
5Jan 24, 2026 01:303,46016,650,0982,030,0001,015,0002,351,104
6Jan 24, 2026 01:303,46022,461,6122,030,0001,015,0002,342,912