Blue color from RGB

Extract the Blue channel from a stream of RGB pixels as fast as possible.

Input: 150 000 000 pixels in binary RGB format on STDIN (3 bytes per pixel: R, G, B).

Output: Write only the Blue byte of each pixel to STDOUT (150 000 000 bytes total).

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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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.

Date	Author	Language	Status	Score
Jul 18, 2026 16:17	Andrew Tsibin	RUSTrust-1.95.0	Success	3,241+804.45 RP
Jul 18, 2026 16:10	Andrew Tsibin	RUSTrust-1.95.0	Success	4,392
Jul 18, 2026 15:55	Andrew Tsibin	RUSTrust-1.95.0	Success	4,419+5.00 RP
Jul 18, 2026 15:40	Andrew Tsibin	RUSTrust-1.95.0	Error
Jul 18, 2026 11:59	Andrew Tsibin	RUSTrust-1.95.0	Error
Jul 18, 2026 11:50	Andrew Tsibin	RUSTrust-1.95.0	Error
Jul 18, 2026 04:48	Andrew Tsibin	RUSTrust-1.95.0	Error
Jul 17, 2026 21:05	Andrew Tsibin	RUSTrust-1.95.0	Success	561,569
Jul 17, 2026 20:50	Andrew Tsibin	RUSTrust-1.95.0	Success	4,406
Jul 17, 2026 00:47	Andrew Tsibin	RUSTrust-1.95.0	Success	4,384+5.71 RP
Jul 17, 2026 00:06	Andrew Tsibin	RUSTrust-1.95.0	Success	4,395+9.28 RP
Jul 16, 2026 23:16	Andrew Tsibin	RUSTrust-1.95.0	Success	4,413+26.39 RP
Jul 16, 2026 22:47	Andrew Tsibin	RUSTrust-1.95.0	Success	4,465+306.15 RP
Jul 16, 2026 22:11	Andrew Tsibin	RUSTrust-1.95.0	Success	5,217
Jul 16, 2026 21:45	Andrew Tsibin	RUSTrust-1.97.0	Success	5,898
Jul 16, 2026 21:44	Andrew Tsibin	RUSTrust-1.95.0	Success	5,872
Jul 16, 2026 21:18	Andrew Tsibin	RUSTrust-1.97.0	Success	5,172+1'933.49 RP
Jul 16, 2026 09:29	Oleg Kovalov	GOgo1.26.2	Success	12,820
Jul 10, 2026 18:39	Genos0	CPPg++10.5.0	Success	135,043+74.05 RP
Jul 9, 2026 22:26	Victor Mercklé	CPPg++14.2.0	Success	1,854+5.82 RP
Jul 9, 2026 22:21	Victor Mercklé	CPPg++14.2.0	Success	1,871
Jul 7, 2026 19:42	Victor Mercklé	CPPg++14.2.0	Success	5,404
Jul 6, 2026 20:45	Adam Folwarczny	CPPclang++20.1.2	Success	4,815
Jul 6, 2026 20:44	Adam Folwarczny	CPPg++14.2.0	Success	3,094+3.13 RP
Jul 6, 2026 20:33	Adam Folwarczny	CPPg++14.2.0	Success	3,097+48.27 RP
Jul 6, 2026 17:23	Victor Mercklé	CPPg++14.2.0	Success	6,103
Jul 6, 2026 17:12	Victor Mercklé	CPPg++14.2.0	Success	2,973
Jul 6, 2026 17:07	Victor Mercklé	CPPg++14.2.0	Success	1,865
Jul 6, 2026 16:57	Victor Mercklé	CPPg++14.2.0	Success	1,856
Jul 6, 2026 16:46	Victor Mercklé	CPPg++14.2.0	Success	1,873
Jul 6, 2026 16:41	Victor Mercklé	CPPg++14.2.0	Success	1,942
Jul 6, 2026 16:31	Victor Mercklé	CPPg++14.2.0	Success	1,970
Jul 2, 2026 23:35	Victor Mercklé	CPPg++14.2.0	Success	2,259
Jul 2, 2026 23:27	Victor Mercklé	CPPg++14.2.0	Success	1,858
Jul 2, 2026 23:10	Victor Mercklé	CPPg++14.2.0	Success	1,907
Jul 2, 2026 23:00	Victor Mercklé	CPPg++14.2.0	Success	1,865
Jul 2, 2026 22:55	Victor Mercklé	CPPg++14.2.0	Success	1,865
Jul 2, 2026 02:08	A_Shaman	CPPg++10.5.0	Success	3,634
Jul 2, 2026 02:03	A_Shaman	CPPg++10.5.0	Success	3,308
Jul 2, 2026 01:59	A_Shaman	CPPg++10.5.0	Success	3,361
Jul 2, 2026 01:53	A_Shaman	CPPg++10.5.0	Success	3,303+17.32 RP
Jul 2, 2026 01:48	A_Shaman	CPPg++10.5.0	Success	3,322+161.23 RP
Jul 2, 2026 01:45	A_Shaman	CPPg++10.5.0	Success	3,510+4.05 RP
Jul 2, 2026 01:40	A_Shaman	CPPg++10.5.0	Success	3,515+810.78 RP
Jul 2, 2026 01:31	A_Shaman	CPPg++10.5.0	Success	5,639
Jul 2, 2026 01:23	A_Shaman	CPPg++10.5.0	Success	5,797
Jul 2, 2026 01:15	A_Shaman	CPPg++10.5.0	Success	4,964
Jun 30, 2026 20:54	Knyukua	CPPg++10.5.0	Success	8,998+1'111.36 RP
Jun 28, 2026 09:11	A_Shaman	CPPg++10.5.0	Success	6,508
Jun 28, 2026 09:07	A_Shaman	CPPg++10.5.0	Success	5,687
Jun 28, 2026 09:03	A_Shaman	CPPg++10.5.0	Success	5,689
Jun 28, 2026 00:49	A_Shaman	CPPg++10.5.0	Success	9,785
Jun 28, 2026 00:45	A_Shaman	CPPg++10.5.0	Success	5,686
Jun 28, 2026 00:41	A_Shaman	CPPg++10.5.0	Success	5,634
Jun 27, 2026 23:55	A_Shaman	CPPg++10.5.0	Success	6,073
Jun 27, 2026 23:50	A_Shaman	CPPg++10.5.0	Success	6,121
Jun 27, 2026 23:45	A_Shaman	CPPg++10.5.0	Success	5,496
Jun 27, 2026 18:46	Shikhar Soni	CPPg++13.3.0	Success	3,414
Jun 27, 2026 18:45	Shikhar Soni	CPPg++14.2.0	Success	3,433
Jun 27, 2026 18:45	Shikhar Soni	CPPg++13.3.0	Success	3,409+17.11 RP
Jun 27, 2026 18:42	Shikhar Soni	CPPg++13.3.0	Success	3,438
Jun 27, 2026 18:41	Shikhar Soni	CPPclang++20.1.2	Success	3,569
Jun 27, 2026 18:40	Shikhar Soni	CPPg++13.3.0	Success	3,429+4.25 RP
Jun 27, 2026 18:39	Shikhar Soni	CPPg++14.2.0	Success	3,450
Jun 27, 2026 18:38	Shikhar Soni	CPPg++14.2.0	Success	3,434+11.82 RP
Jun 27, 2026 18:31	Shikhar Soni	CPPg++14.2.0	Success	3,448+1'988.57 RP
Jun 27, 2026 18:24	Shikhar Soni	CPPg++14.2.0	Success	10,969+911.66 RP
Jun 26, 2026 20:02	Victor Mercklé	ZIG0.16.0	Success	1,861+2'065.48 RP
Jun 26, 2026 19:45	Victor Mercklé	GOgo1.26.2	Success	1,947
Jun 26, 2026 19:40	Victor Mercklé	GOgo1.26.2	Success	1,939+1'932.53 RP
Jun 26, 2026 19:35	Victor Mercklé	GOgo1.26.2	Error
Jun 26, 2026 19:20	Victor Mercklé	GOgo1.26.2	Error
Jun 26, 2026 18:59	Victor Mercklé	GOgo1.26.2	Error
Jun 26, 2026 18:17	Victor Mercklé	CSHARP10.0.7	Success	1,945+1'918.70 RP
Jun 26, 2026 18:09	Victor Mercklé	CSHARP10.0.7	Error
Jun 26, 2026 18:05	Victor Mercklé	CSHARP10.0.7	Error
Jun 26, 2026 17:38	A_Shaman	CPPg++10.5.0	Success	5,020
Jun 26, 2026 17:31	A_Shaman	CPPg++10.5.0	Success	4,943
Jun 26, 2026 17:27	A_Shaman	CPPg++10.5.0	Success	4,925
Jun 26, 2026 17:24	A_Shaman	CPPg++10.5.0	Success	4,916+7.01 RP
Jun 26, 2026 17:19	A_Shaman	CPPg++10.5.0	Success	4,933+227.31 RP
Jun 26, 2026 16:24	Victor Mercklé	RUSTrust-1.95.0	Success	1,857+2'069.38 RP
Jun 26, 2026 16:14	Victor Mercklé	RUSTrust-1.95.0	Error
Jun 26, 2026 16:01	Victor Mercklé	CPPg++14.2.0	Success	2,028
Jun 26, 2026 15:56	Victor Mercklé	CPPg++14.2.0	Success	8,056
Jun 26, 2026 15:49	Victor Mercklé	CPPg++14.2.0	Success	1,858
Jun 26, 2026 15:41	Victor Mercklé	CPPg++14.2.0	Success	1,859
Jun 26, 2026 15:36	Victor Mercklé	CPPg++14.2.0	Success	1,857
Jun 26, 2026 15:31	Victor Mercklé	CPPg++14.2.0	Success	1,889
Jun 26, 2026 15:26	Victor Mercklé	CPPg++14.2.0	Success	1,860
Jun 26, 2026 15:19	Victor Mercklé	CPPg++14.2.0	Success	3,623
Jun 26, 2026 15:14	Victor Mercklé	CPPg++14.2.0	Success	3,918
Jun 26, 2026 15:09	Victor Mercklé	CPPg++14.2.0	Success	1,861
Jun 26, 2026 15:04	Victor Mercklé	CPPg++14.2.0	Success	1,855
Jun 26, 2026 14:59	Victor Mercklé	CPPg++14.2.0	Success	2,557
Jun 26, 2026 14:43	Victor Mercklé	CPPg++14.2.0	Success	1,857
Jun 26, 2026 14:36	Victor Mercklé	CPPg++14.2.0	Success	1,855+23.20 RP
Jun 26, 2026 14:30	Victor Mercklé	CPPg++14.2.0	Success	1,859
Jun 26, 2026 14:15	Victor Mercklé	CPPg++14.2.0	Success	1,860
Jun 26, 2026 14:10	Victor Mercklé	CPPg++14.2.0	Success	1,859+11.56 RP

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