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 listMar 20, 2026 13:59

Dominique GarmierScore: 13,597Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 14:18	13,484	29,101,994	9,889,000	1,977,000	2,273,280
2	Mar 20, 2026 12:08	13,518	30,533,954	9,914,000	1,982,000	2,400,256
3	Mar 20, 2026 14:18	13,523	29,721,612	10,909,000	991,000	2,400,256
4	Mar 20, 2026 12:08	13,527	27,973,853	9,920,000	1,984,000	2,400,256
5	Mar 20, 2026 13:35	13,530	31,243,960	10,914,000	992,000	2,273,280
6	Mar 20, 2026 14:18	13,530	30,706,891	9,922,000	1,984,000	2,396,160
7	Mar 20, 2026 13:28	13,531	36,261,010	10,915,000	992,000	2,400,256
8	Mar 20, 2026 11:50	13,541	37,838,109	9,930,000	1,986,000	2,273,280
9	Mar 20, 2026 11:55	13,541	29,556,977	10,923,000	993,000	2,400,256
10	Mar 20, 2026 13:28	13,542	27,706,458	10,924,000	993,000	2,273,280
11	Mar 20, 2026 11:50	13,543	26,854,787	10,925,000	993,000	2,514,944
12	Mar 20, 2026 13:28	13,545	26,633,374	10,927,000	993,000	2,273,280
13	Mar 20, 2026 13:28	13,552	31,715,962	9,939,000	1,987,000	2,273,280
14	Mar 20, 2026 12:08	13,555	26,825,785	10,844,000	1,084,000	2,392,064
15	Mar 20, 2026 11:50	13,557	28,560,909	10,936,000	994,000	2,514,944
16	Mar 20, 2026 12:08	13,563	28,299,138	10,941,000	994,000	2,273,280
17	Mar 20, 2026 14:18	13,563	33,068,197	9,946,000	1,989,000	2,273,280
18	Mar 20, 2026 11:55	13,578	27,345,497	9,958,000	1,991,000	2,396,160
19	Mar 20, 2026 13:28	13,584	30,086,907	10,958,000	996,000	2,273,280
20	Mar 20, 2026 12:08	13,591	28,670,719	9,967,000	1,993,000	2,396,160
21	Mar 20, 2026 13:28	13,591	30,110,090	9,967,000	1,993,000	2,400,256
22	Mar 20, 2026 13:28	13,597	32,690,091	10,968,000	997,000	2,273,280
23	Mar 20, 2026 12:08	13,600	35,001,113	9,974,000	1,994,000	2,408,448
24	Mar 20, 2026 14:18	13,618	30,191,818	10,986,000	998,000	2,273,280
25	Mar 20, 2026 13:28	13,620	30,848,538	10,988,000	998,000	2,273,280
26	Mar 20, 2026 12:08	13,620	34,042,197	10,988,000	998,000	2,273,280
27	Mar 20, 2026 14:18	13,623	35,377,141	10,989,000	999,000	2,273,280
28	Mar 20, 2026 13:35	13,634	28,567,573	10,999,000	999,000	2,404,352
29	Mar 20, 2026 13:35	13,648	28,541,058	10,009,000	2,001,000	2,273,280
30	Mar 20, 2026 11:55	13,650	34,833,719	11,011,000	1,001,000	2,273,280
31	Mar 20, 2026 13:28	13,673	29,464,855	11,030,000	1,002,000	2,273,280
32	Mar 20, 2026 12:08	13,688	27,281,393	10,038,000	2,007,000	2,519,040
33	Mar 20, 2026 14:18	13,698	29,096,651	10,045,000	2,009,000	2,273,280
34	Mar 20, 2026 12:08	13,702	28,977,268	11,054,000	1,004,000	2,400,256
35	Mar 20, 2026 14:38	13,745	28,996,689	11,088,000	1,008,000	2,387,968
36	Mar 20, 2026 14:18	13,763	29,610,978	11,102,000	1,009,000	2,392,064
37	Mar 20, 2026 14:38	13,764	30,966,054	10,094,000	2,018,000	2,408,448
38	Mar 20, 2026 13:59	13,857	37,450,178	10,162,000	2,032,000	2,404,352
39	Mar 20, 2026 13:59	13,873	31,208,739	10,174,000	2,034,000	2,273,280
40	Mar 20, 2026 14:38	13,877	41,578,801	10,177,000	2,035,000	2,273,280
41	Mar 20, 2026 13:59	13,925	41,459,898	10,212,000	2,042,000	2,396,160
42	Mar 20, 2026 14:18	14,093	30,961,304	11,369,000	1,033,000	2,383,872

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