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 03:37zielajzielajError
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 07:13010,579,2501,096,00002,113,536expected "6442459076 ", got "2305422362 "
2May 17, 2026 07:1308,722,5451,107,00002,113,536expected "6442459076 ", got "2305422362 "
3May 17, 2026 07:1309,298,3801,121,00002,113,536expected "6442459076 ", got "2305422362 "
4Feb 7, 2026 03:393,38317,819,5391,985,000992,0002,351,104
5Feb 7, 2026 03:373,43420,633,4382,015,0001,007,0002,347,008
6Feb 7, 2026 03:393,48414,655,8522,044,0001,022,0002,347,008
7Feb 7, 2026 03:373,48817,830,4102,046,0001,023,0002,347,008
8Feb 7, 2026 03:373,52218,796,7451,033,0002,066,0002,347,008
9Feb 7, 2026 03:394,21520,798,2842,473,0001,236,0002,342,912