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 20:16zielajzielajError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:10M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:1008,534,7081,197,00002,113,536expected "6442459076 ", got "2305422578 "
2May 17, 2026 07:1008,369,8181,195,00002,113,536expected "6442459076 ", got "2305422578 "
3May 17, 2026 07:1008,720,5391,194,00002,113,536expected "6442459076 ", got "2305422578 "
4Jan 24, 2026 20:163,35719,783,1422,954,00002,367,488
5Jan 24, 2026 20:163,48818,623,3042,046,0001,023,0002,351,104
6Jan 24, 2026 20:164,46116,837,1632,945,000981,0002,510,848