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	1:20.1.2-0ubuntu1~24.04.2	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.
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	3.0.13-0ubuntu3.9	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.

Back to listFeb 15, 2026 21:35

zielajScore: 3,341Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 15, 2026 21:36	3,311	21,163,924	1,943,000	971,000	2,441,216
2	Feb 15, 2026 21:36	3,314	21,733,338	1,944,000	972,000	2,514,944
3	Feb 15, 2026 21:37	3,315	16,797,898	1,945,000	972,000	2,437,120
4	Feb 15, 2026 21:33	3,315	21,200,086	1,945,000	972,000	2,437,120
5	Feb 15, 2026 21:22	3,317	24,430,343	2,919,000	0	2,437,120
6	Feb 15, 2026 21:33	3,319	20,621,237	2,921,000	0	2,441,216
7	Feb 15, 2026 21:33	3,319	20,143,804	2,921,000	0	2,437,120
8	Feb 15, 2026 21:22	3,322	15,659,646	1,949,000	974,000	2,433,024
9	Feb 15, 2026 21:38	3,322	20,029,892	1,949,000	974,000	2,510,848
10	Feb 15, 2026 21:33	3,322	21,143,331	1,949,000	974,000	2,433,024
11	Feb 15, 2026 21:38	3,323	17,210,734	2,924,000	0	2,433,024
12	Feb 15, 2026 21:37	3,324	17,850,290	1,950,000	975,000	2,510,848
13	Feb 15, 2026 21:22	3,325	16,667,887	2,926,000	0	2,437,120
14	Feb 15, 2026 21:37	3,327	21,086,247	1,952,000	976,000	2,433,024
15	Feb 15, 2026 21:33	3,328	25,580,925	1,953,000	976,000	2,441,216
16	Feb 15, 2026 21:22	3,328	20,992,090	1,953,000	976,000	2,437,120
17	Feb 15, 2026 21:38	3,328	15,478,050	1,953,000	976,000	2,433,024
18	Feb 15, 2026 21:37	3,330	17,210,195	2,930,000	0	2,428,928
19	Feb 15, 2026 21:33	3,333	21,262,502	2,933,000	0	2,428,928
20	Feb 15, 2026 21:22	3,334	20,305,842	1,956,000	978,000	2,437,120
21	Feb 15, 2026 21:22	3,335	21,446,741	2,935,000	0	2,433,024
22	Feb 15, 2026 21:22	3,341	21,655,432	1,960,000	980,000	2,437,120
23	Feb 15, 2026 21:22	3,343	16,724,310	2,942,000	0	2,437,120
24	Feb 15, 2026 21:22	3,368	19,269,539	1,976,000	988,000	2,281,472
25	Feb 15, 2026 21:23	3,386	20,059,292	1,987,000	993,000	2,437,120
26	Feb 15, 2026 21:35	3,389	18,317,283	1,988,000	994,000	2,437,120
27	Feb 15, 2026 21:23	3,389	19,279,101	1,988,000	994,000	2,433,024
28	Feb 15, 2026 21:37	3,393	24,039,940	1,991,000	995,000	2,277,376
29	Feb 15, 2026 21:22	3,393	18,730,368	1,991,000	995,000	2,437,120
30	Feb 15, 2026 21:23	3,397	19,607,271	1,993,000	996,000	2,277,376
31	Feb 15, 2026 21:38	3,406	18,294,503	1,998,000	999,000	2,437,120
32	Feb 15, 2026 21:22	3,407	21,996,986	1,999,000	999,000	2,281,472
33	Feb 15, 2026 21:33	3,431	19,805,736	2,013,000	1,006,000	2,437,120
34	Feb 15, 2026 21:33	3,443	21,703,233	2,020,000	1,010,000	2,437,120
35	Feb 15, 2026 21:38	3,447	22,982,307	2,022,000	1,011,000	2,281,472
36	Feb 15, 2026 21:36	3,453	18,493,397	2,026,000	1,013,000	2,437,120
37	Feb 15, 2026 21:38	3,461	21,378,048	2,031,000	1,015,000	2,428,928
38	Feb 15, 2026 21:22	3,467	25,302,160	2,034,000	1,017,000	2,277,376
39	Feb 15, 2026 21:37	3,768	17,697,975	3,316,000	0	2,437,120
40	Feb 15, 2026 21:35	3,803	22,523,511	3,347,000	0	2,424,832
41	Feb 15, 2026 21:33	3,841	19,558,754	3,380,000	0	2,277,376
42	Feb 15, 2026 21:35	3,907	19,499,349	2,292,000	1,146,000	2,433,024

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