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 12:50	3,128	21,242,226	2,753,000	0	2,441,216
2	Feb 19, 2026 20:00	3,131	22,335,185	2,755,000	0	2,433,024
3	Feb 19, 2026 20:02	3,133	23,636,064	2,757,000	0	2,441,216
4	Feb 19, 2026 12:49	3,140	19,678,039	2,763,000	0	2,433,024
5	Feb 19, 2026 20:01	3,149	21,316,483	2,771,000	0	2,531,328
6	Feb 19, 2026 12:49	3,160	18,225,618	2,781,000	0	2,433,024
7	Feb 19, 2026 20:02	3,163	23,125,118	2,783,000	0	2,531,328
8	Feb 19, 2026 12:50	3,172	18,560,525	2,791,000	0	2,433,024
9	Feb 19, 2026 02:05	3,174	26,261,798	2,793,000	0	2,441,216
10	Feb 19, 2026 12:49	3,176	21,816,737	2,795,000	0	2,433,024
11	Feb 19, 2026 20:00	3,178	19,825,201	2,797,000	0	2,535,424
12	Feb 19, 2026 12:50	3,181	15,762,399	2,799,000	0	2,433,024
13	Feb 19, 2026 02:05	3,193	23,743,706	1,405,000	1,405,000	2,433,024
14	Feb 19, 2026 20:00	3,205	18,761,902	2,820,000	0	2,433,024
15	Feb 19, 2026 12:49	3,278	18,012,658	2,885,000	0	2,437,120
16	Feb 19, 2026 20:00	3,282	18,351,418	2,888,000	0	2,424,832
17	Feb 19, 2026 20:02	3,310	18,051,245	1,942,000	971,000	2,433,024
18	Feb 19, 2026 20:00	3,314	23,148,676	1,944,000	972,000	2,441,216
19	Feb 19, 2026 20:01	3,314	24,395,638	1,944,000	972,000	2,441,216
20	Feb 19, 2026 02:06	3,315	20,163,837	1,945,000	972,000	2,433,024
21	Feb 19, 2026 12:50	3,316	19,753,085	2,918,000	0	2,535,424
22	Feb 19, 2026 02:05	3,317	22,725,900	1,946,000	973,000	2,437,120
23	Feb 19, 2026 02:05	3,318	24,129,772	1,947,000	973,000	2,437,120
24	Feb 19, 2026 20:02	3,318	16,531,939	1,947,000	973,000	2,531,328
25	Feb 19, 2026 02:06	3,320	20,000,883	1,948,000	974,000	2,441,216
26	Feb 19, 2026 12:48	3,320	16,958,852	1,948,000	974,000	2,433,024
27	Feb 19, 2026 12:48	3,320	19,615,874	1,948,000	974,000	2,535,424
28	Feb 19, 2026 20:01	3,322	23,527,993	1,949,000	974,000	2,437,120
29	Feb 19, 2026 12:50	3,322	16,290,303	1,949,000	974,000	2,437,120
30	Feb 19, 2026 20:02	3,322	26,724,895	1,949,000	974,000	2,433,024
31	Feb 19, 2026 12:50	3,323	19,466,558	2,924,000	0	2,428,928
32	Feb 19, 2026 12:48	3,323	24,972,869	2,924,000	0	2,510,848
33	Feb 19, 2026 20:01	3,325	22,794,694	1,951,000	975,000	2,441,216
34	Feb 19, 2026 12:48	3,327	23,838,175	1,952,000	976,000	2,437,120
35	Feb 19, 2026 02:06	3,327	20,147,628	1,952,000	976,000	2,428,928
36	Feb 19, 2026 12:50	3,327	20,471,024	1,952,000	976,000	2,277,376
37	Feb 19, 2026 12:48	3,327	19,771,789	1,952,000	976,000	2,445,312
38	Feb 19, 2026 20:00	3,328	22,624,588	2,929,000	0	2,441,216
39	Feb 19, 2026 20:00	3,332	18,081,027	1,955,000	977,000	2,437,120
40	Feb 19, 2026 02:04	3,334	28,648,397	1,956,000	978,000	2,433,024
41	Feb 19, 2026 20:01	3,342	22,562,981	1,961,000	980,000	2,433,024
42	Feb 19, 2026 02:05	3,344	18,559,651	981,000	1,962,000	2,437,120
43	Feb 19, 2026 02:04	3,348	21,151,874	1,964,000	982,000	2,428,928
44	Feb 19, 2026 20:02	3,349	22,366,820	982,000	1,965,000	2,535,424
45	Feb 19, 2026 20:00	3,365	18,472,681	1,974,000	987,000	2,433,024
46	Feb 19, 2026 02:04	3,366	21,350,942	2,962,000	0	2,441,216
47	Feb 19, 2026 12:50	3,369	18,036,356	1,977,000	988,000	2,428,928
48	Feb 19, 2026 20:02	3,465	17,945,036	2,033,000	1,016,000	2,441,216
49	Feb 19, 2026 20:01	3,470	22,742,770	1,018,000	2,036,000	2,424,832
50	Feb 19, 2026 12:49	3,489	23,935,781	2,047,000	1,023,000	2,424,832
51	Feb 19, 2026 12:48	3,567	22,471,846	2,093,000	1,046,000	2,433,024
52	Feb 19, 2026 20:02	3,586	19,163,978	2,104,000	1,052,000	2,428,928
53	Feb 19, 2026 20:02	3,666	20,259,596	2,151,000	1,075,000	2,535,424
54	Feb 19, 2026 02:05	3,683	18,289,221	2,161,000	1,080,000	2,428,928
55	Feb 19, 2026 20:00	3,788	20,607,415	3,333,000	0	2,531,328
56	Feb 19, 2026 12:49	3,867	20,926,389	3,403,000	0	2,424,832
57	Feb 19, 2026 12:50	4,000	19,610,604	2,347,000	1,173,000	2,469,888

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