Sum of prime numbers

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.

Restrictions:30s256Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.11	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

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Challenge History

Date	Challenger	Cost	Type	Status
May 17, 2026 05:12	M-Rochat	10.00	Custom	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	May 17, 2026 05:12	0	10,805,086	1,064,000	0	2,113,536	expected "6442459076 ", got "2305422681 "
2	May 17, 2026 05:12	0	9,117,785	1,071,000	0	2,113,536	expected "6442459076 ", got "2305422681 "
3	May 17, 2026 05:12	0	9,689,034	1,003,000	0	2,113,536	expected "6442459076 ", got "2305422681 "
4	Mar 8, 2026 20:12	2,953	19,064,287	2,599,000	0	2,437,120
5	Mar 8, 2026 20:10	2,955	23,302,694	2,600,000	0	2,441,216
6	Mar 8, 2026 20:10	2,960	18,069,175	2,605,000	0	2,437,120
7	Mar 8, 2026 20:11	2,961	15,976,336	2,606,000	0	2,269,184
8	Mar 8, 2026 20:11	2,965	17,912,060	2,609,000	0	2,445,312
9	Mar 8, 2026 20:12	2,985	20,715,856	2,627,000	0	2,449,408
10	Mar 8, 2026 20:12	2,992	20,213,978	2,633,000	0	2,437,120
11	Mar 8, 2026 20:10	2,999	20,241,118	2,639,000	0	2,531,328
12	Mar 8, 2026 20:10	3,000	18,619,671	2,640,000	0	2,441,216
13	Mar 8, 2026 20:12	3,002	20,043,754	2,642,000	0	2,437,120
14	Mar 8, 2026 20:10	3,003	23,707,002	2,643,000	0	2,441,216
15	Mar 8, 2026 20:10	3,006	22,003,669	2,645,000	0	2,445,312
16	Mar 8, 2026 20:10	3,007	19,777,627	2,646,000	0	2,449,408
17	Mar 8, 2026 20:10	3,011	23,562,813	2,650,000	0	2,441,216
18	Mar 8, 2026 20:10	3,017	20,980,337	2,655,000	0	2,441,216
19	Mar 8, 2026 20:10	3,019	20,522,247	2,657,000	0	2,437,120
20	Mar 8, 2026 20:10	3,033	16,004,697	2,669,000	0	2,449,408
21	Mar 8, 2026 20:11	3,042	19,986,785	2,677,000	0	2,441,216
22	Mar 8, 2026 20:11	3,051	19,913,240	2,685,000	0	2,449,408
23	Mar 8, 2026 20:11	3,127	17,068,519	2,752,000	0	2,445,312
24	Mar 8, 2026 20:11	3,133	20,250,056	2,757,000	0	2,437,120
25	Mar 8, 2026 20:11	3,135	20,062,551	2,759,000	0	2,449,408
26	Mar 8, 2026 20:11	3,143	20,384,881	2,766,000	0	2,437,120
27	Mar 8, 2026 20:12	3,156	15,314,867	2,777,000	0	2,269,184
28	Mar 8, 2026 20:10	3,195	19,056,569	2,812,000	0	2,531,328
29	Mar 8, 2026 20:11	3,410	15,714,059	2,001,000	1,000,000	2,273,280
30	Mar 8, 2026 20:12	3,467	18,551,369	2,034,000	1,017,000	2,445,312
31	Mar 8, 2026 20:11	3,502	18,205,399	2,055,000	1,027,000	2,437,120
32	Mar 8, 2026 20:11	3,594	20,611,597	2,109,000	1,054,000	2,445,312
33	Mar 8, 2026 20:11	3,680	17,988,338	2,159,000	1,079,000	2,437,120

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1