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 20:19zielajzielajError
Source Code

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Challenge History
DateChallengerCostTypeStatus
May 17, 2026 06:45M-Rochat10.00CustomSolution Broken
Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1May 17, 2026 06:47010,727,5211,324,00002,113,536expected "6442459076 ", got "2305422578 "
2May 17, 2026 06:4708,471,6021,114,00002,113,536expected "6442459076 ", got "2305422578 "
3May 17, 2026 06:4708,458,2751,116,00002,113,536expected "6442459076 ", got "2305422578 "
4Jan 24, 2026 20:193,37623,611,8591,981,000990,0002,363,392
5Jan 24, 2026 20:193,45019,201,4662,024,0001,012,0002,359,296
6Jan 24, 2026 20:194,26419,457,0693,752,00002,355,200