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 01:37zielajzielajError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 07:00M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 07:0008,364,2701,237,00002,113,536expected "6442459076 ", got "2305422578 "
2May 17, 2026 07:00014,785,2991,174,00002,113,536expected "6442459076 ", got "2305422578 "
3May 17, 2026 07:00010,845,0021,251,00002,113,536expected "6442459076 ", got "2305422578 "
4Jan 24, 2026 01:373,42418,536,6081,004,0002,009,0002,347,008
5Jan 24, 2026 01:373,46715,679,3442,034,0001,017,0002,457,600
6Jan 24, 2026 01:374,45217,229,3401,959,0001,959,0002,351,104