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.

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 23, 2026 23:56	3,067	17,997,275	2,699,000	0	2,428,928
2	Feb 23, 2026 23:56	3,070	20,861,204	2,702,000	0	2,433,024
3	Feb 23, 2026 23:59	3,072	23,186,994	2,703,000	0	2,424,832
4	Feb 23, 2026 23:58	3,076	15,429,481	2,707,000	0	2,433,024
5	Feb 23, 2026 23:59	3,080	23,243,685	2,710,000	0	2,433,024
6	Feb 23, 2026 23:56	3,080	17,859,509	2,710,000	0	2,424,832
7	Feb 23, 2026 23:57	3,085	24,583,245	2,715,000	0	2,428,928
8	Feb 23, 2026 23:59	3,085	20,200,080	2,715,000	0	2,277,376
9	Feb 24, 2026 02:51	3,089	18,193,283	2,718,000	0	2,416,640
10	Feb 24, 2026 02:51	3,091	19,339,889	2,720,000	0	2,433,024
11	Feb 23, 2026 23:59	3,093	20,592,608	2,722,000	0	2,416,640
12	Feb 23, 2026 23:59	3,095	17,357,008	2,724,000	0	2,277,376
13	Feb 23, 2026 23:56	3,101	18,002,867	2,729,000	0	2,424,832
14	Feb 23, 2026 23:59	3,101	18,066,899	2,729,000	0	2,277,376
15	Feb 23, 2026 23:56	3,107	20,455,713	2,734,000	0	2,428,928
16	Feb 23, 2026 23:59	3,110	25,458,139	2,737,000	0	2,428,928
17	Feb 23, 2026 23:55	3,114	20,839,877	2,740,000	0	2,424,832
18	Feb 23, 2026 23:57	3,116	16,358,344	2,742,000	0	2,535,424
19	Feb 23, 2026 23:58	3,117	18,399,257	2,743,000	0	2,433,024
20	Feb 24, 2026 02:51	3,119	18,677,642	2,745,000	0	2,428,928
21	Feb 23, 2026 23:56	3,120	15,064,576	1,373,000	1,373,000	2,428,928
22	Feb 25, 2026 03:20	3,120	21,006,017	2,746,000	0	2,420,736
23	Feb 24, 2026 02:51	3,122	16,324,100	2,747,000	0	2,535,424
24	Feb 23, 2026 23:57	3,123	18,559,825	2,748,000	0	2,535,424
25	Feb 25, 2026 03:20	3,124	15,932,816	2,749,000	0	2,420,736
26	Feb 23, 2026 23:59	3,124	18,718,154	2,749,000	0	2,424,832
27	Feb 23, 2026 23:57	3,124	15,226,241	2,749,000	0	2,535,424
28	Feb 25, 2026 03:20	3,125	14,745,227	2,750,000	0	2,424,832
29	Feb 24, 2026 02:51	3,126	16,275,871	2,751,000	0	2,416,640
30	Feb 24, 2026 02:51	3,127	20,051,373	2,752,000	0	2,420,736
31	Feb 23, 2026 23:57	3,128	18,420,408	2,753,000	0	2,535,424
32	Feb 23, 2026 23:56	3,128	16,002,509	2,753,000	0	2,428,928
33	Feb 23, 2026 23:59	3,130	22,253,060	2,754,000	0	2,424,832
34	Feb 24, 2026 02:51	3,134	18,422,087	2,758,000	0	2,424,832
35	Feb 23, 2026 23:55	3,147	20,654,936	2,769,000	0	2,420,736
36	Feb 25, 2026 03:20	3,148	18,193,234	2,770,000	0	2,428,928
37	Feb 23, 2026 23:56	3,157	18,257,312	2,778,000	0	2,424,832
38	Feb 24, 2026 02:51	3,159	18,246,905	2,780,000	0	2,424,832
39	Feb 23, 2026 23:55	3,288	19,052,537	964,000	1,929,000	2,473,984
40	Feb 25, 2026 03:20	3,305	26,750,224	2,908,000	0	2,277,376
41	Feb 25, 2026 03:20	3,305	18,533,833	1,939,000	969,000	2,433,024
42	Feb 23, 2026 23:57	3,307	15,964,687	2,910,000	0	2,535,424
43	Feb 24, 2026 02:51	3,308	17,329,602	1,941,000	970,000	2,535,424
44	Feb 23, 2026 23:59	3,310	20,169,672	1,942,000	971,000	2,416,640
45	Feb 23, 2026 23:58	3,318	16,523,915	1,947,000	973,000	2,424,832
46	Feb 24, 2026 02:51	3,320	17,292,033	1,948,000	974,000	2,420,736
47	Feb 24, 2026 02:51	3,322	19,874,700	2,923,000	0	2,424,832
48	Feb 23, 2026 23:57	3,328	25,922,418	1,953,000	976,000	2,420,736
49	Feb 23, 2026 23:56	3,522	18,416,121	2,066,000	1,033,000	2,277,376
50	Feb 24, 2026 02:51	3,577	23,360,819	2,099,000	1,049,000	2,416,640
51	Feb 23, 2026 23:59	3,615	19,449,809	2,121,000	1,060,000	2,416,640
52	Feb 23, 2026 23:55	3,669	19,036,034	2,153,000	1,076,000	2,420,736
53	Feb 23, 2026 23:57	3,673	21,043,129	2,155,000	1,077,000	2,277,376
54	Feb 23, 2026 23:57	3,673	19,501,505	2,155,000	1,077,000	2,412,544
55	Feb 23, 2026 23:55	3,675	19,051,976	2,156,000	1,078,000	2,424,832
56	Feb 23, 2026 23:59	3,730	18,595,198	2,188,000	1,094,000	2,277,376
57	Feb 23, 2026 23:55	3,828	20,355,537	3,369,000	0	2,424,832

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