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 19, 2026 12:53	3,166	22,447,031	2,786,000	0	2,531,328
2	Feb 19, 2026 01:46	3,198	24,704,689	2,814,000	0	2,433,024
3	Feb 19, 2026 04:26	3,308	19,112,661	970,000	1,941,000	2,437,120
4	Feb 19, 2026 02:03	3,314	19,893,465	1,944,000	972,000	2,437,120
5	Feb 19, 2026 04:25	3,315	18,403,198	1,945,000	972,000	2,441,216
6	Feb 19, 2026 01:46	3,317	21,679,716	1,946,000	973,000	2,441,216
7	Feb 19, 2026 04:27	3,317	19,275,814	2,919,000	0	2,531,328
8	Feb 19, 2026 04:26	3,317	22,343,697	1,946,000	973,000	2,433,024
9	Feb 19, 2026 12:53	3,318	16,117,337	2,920,000	0	2,445,312
10	Feb 19, 2026 02:03	3,318	19,383,230	2,920,000	0	2,527,232
11	Feb 19, 2026 04:26	3,318	21,742,048	973,000	1,947,000	2,535,424
12	Feb 19, 2026 12:53	3,319	17,722,468	2,921,000	0	2,519,040
13	Feb 19, 2026 12:47	3,319	24,844,552	2,921,000	0	2,441,216
14	Feb 19, 2026 02:04	3,320	24,635,036	2,922,000	0	2,445,312
15	Feb 19, 2026 04:26	3,322	21,308,776	1,949,000	974,000	2,441,216
16	Feb 19, 2026 01:46	3,324	19,197,260	1,950,000	975,000	2,433,024
17	Feb 19, 2026 04:27	3,325	16,968,303	1,951,000	975,000	2,433,024
18	Feb 19, 2026 04:28	3,325	23,970,377	2,926,000	0	2,437,120
19	Feb 19, 2026 12:46	3,325	21,016,397	1,951,000	975,000	2,433,024
20	Feb 19, 2026 01:43	3,325	17,609,957	1,951,000	975,000	2,535,424
21	Feb 19, 2026 04:28	3,327	18,081,039	1,952,000	976,000	2,531,328
22	Feb 19, 2026 12:47	3,327	18,470,111	2,928,000	0	2,433,024
23	Feb 19, 2026 04:27	3,327	17,964,066	1,952,000	976,000	2,433,024
24	Feb 19, 2026 04:26	3,328	18,431,392	1,953,000	976,000	2,433,024
25	Feb 19, 2026 02:06	3,331	18,343,456	1,954,000	977,000	2,535,424
26	Feb 19, 2026 12:52	3,331	19,162,648	1,954,000	977,000	2,433,024
27	Feb 19, 2026 01:46	3,331	18,376,742	1,954,000	977,000	2,437,120
28	Feb 19, 2026 12:53	3,333	18,379,540	2,933,000	0	2,433,024
29	Feb 19, 2026 02:06	3,335	16,527,199	1,957,000	978,000	2,433,024
30	Feb 19, 2026 01:45	3,335	19,513,267	1,957,000	978,000	2,437,120
31	Feb 19, 2026 04:28	3,338	18,934,400	979,000	1,958,000	2,437,120
32	Feb 19, 2026 12:52	3,339	21,810,577	1,959,000	979,000	2,535,424
33	Feb 19, 2026 12:47	3,341	18,789,032	1,960,000	980,000	2,531,328
34	Feb 19, 2026 12:46	3,345	19,096,673	1,963,000	981,000	2,437,120
35	Feb 19, 2026 02:04	3,350	21,141,093	2,948,000	0	2,437,120
36	Feb 19, 2026 02:06	3,356	20,052,884	984,000	1,969,000	2,281,472
37	Feb 19, 2026 02:03	3,361	18,316,451	2,958,000	0	2,523,136
38	Feb 19, 2026 12:47	3,368	22,629,468	1,976,000	988,000	2,428,928
39	Feb 19, 2026 04:25	3,372	19,303,322	1,978,000	989,000	2,433,024
40	Feb 19, 2026 12:47	3,424	23,841,599	2,009,000	1,004,000	2,428,928
41	Feb 19, 2026 12:46	3,433	24,990,352	2,014,000	1,007,000	2,433,024
42	Feb 19, 2026 12:53	3,464	21,268,468	2,032,000	1,016,000	2,433,024
43	Feb 19, 2026 12:52	3,569	20,226,782	2,094,000	1,047,000	2,424,832
44	Feb 19, 2026 12:47	3,583	20,986,662	2,102,000	1,051,000	2,433,024
45	Feb 19, 2026 01:43	3,605	20,835,778	1,057,000	2,115,000	2,433,024
46	Feb 19, 2026 04:26	3,638	20,644,880	2,134,000	1,067,000	2,437,120
47	Feb 19, 2026 12:53	3,661	21,482,745	2,148,000	1,074,000	2,433,024
48	Feb 19, 2026 04:26	3,697	20,778,469	3,253,000	0	2,424,832
49	Feb 19, 2026 04:26	3,744	19,699,405	3,295,000	0	2,424,832
50	Feb 19, 2026 01:46	3,761	24,193,875	3,310,000	0	2,437,120
51	Feb 19, 2026 02:04	3,823	18,067,400	3,364,000	0	2,428,928
52	Feb 19, 2026 01:46	3,894	17,310,940	2,285,000	1,142,000	2,428,928
53	Feb 19, 2026 01:45	3,908	16,202,304	3,439,000	0	2,428,928
54	Feb 19, 2026 04:25	3,916	19,243,685	3,446,000	0	2,433,024
55	Feb 19, 2026 04:26	3,919	23,436,282	3,449,000	0	2,441,216
56	Feb 19, 2026 01:45	3,920	21,038,811	3,450,000	0	2,433,024
57	Feb 19, 2026 01:43	3,943	23,154,400	3,470,000	0	2,433,024

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