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	1:20.1.2-0ubuntu1~24.04.2	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.

Date	Author	Language	Status	Score
Jun 12, 2026 11:42	Victor Mercklé	CSHARP10.0.7	Success	3,103+7.25 RP
Jun 12, 2026 11:37	Victor Mercklé	CSHARP10.0.7	Success	3,114
Jun 12, 2026 11:21	Victor Mercklé	CSHARP10.0.7	Success	3,110+117.54 RP
Jun 12, 2026 06:11	Victor Mercklé	RUSTrust-1.95.0	Success	3,016+2.20 RP
Jun 12, 2026 06:06	Victor Mercklé	RUSTrust-1.95.0	Success	3,018+1.10 RP
Jun 12, 2026 05:50	Victor Mercklé	RUSTrust-1.95.0	Success	3,019+1.10 RP
Jun 12, 2026 00:33	Victor Mercklé	ZIG0.16.0	Success	3,024
Jun 12, 2026 00:24	Victor Mercklé	ZIG0.16.0	Success	3,024
Jun 11, 2026 23:59	Victor Mercklé	ZIG0.16.0	Success	3,023+38.93 RP
Jun 11, 2026 21:10	Victor Mercklé	GOgo1.26.2	Success	3,103
Jun 11, 2026 21:05	Victor Mercklé	GOgo1.26.2	Success	3,101+3.12 RP
Jun 11, 2026 20:55	Victor Mercklé	CPPg++14.2.0	Success	3,012
Jun 11, 2026 20:50	Victor Mercklé	GOgo1.26.2	Success	3,104+5.18 RP
Jun 11, 2026 20:45	Victor Mercklé	CPPg++14.2.0	Success	3,035
Jun 11, 2026 20:35	Victor Mercklé	CPPg++14.2.0	Success	3,031
Jun 11, 2026 20:25	Victor Mercklé	GOgo1.26.2	Success	3,109+45.89 RP
Jun 11, 2026 20:20	Victor Mercklé	CPPg++14.2.0	Success	3,015
Jun 11, 2026 20:15	Victor Mercklé	CPPg++14.2.0	Success	3,012
Jun 11, 2026 20:09	Victor Mercklé	CPPg++14.2.0	Success	3,024
Jun 11, 2026 20:04	Victor Mercklé	CPPg++14.2.0	Success	3,042+5.00 RP
Jun 10, 2026 04:04	Victor Mercklé	CPPg++14.2.0	Success	3,243
Jun 10, 2026 04:01	Victor Mercklé	CPPg++14.2.0	Success	3,020
Jun 10, 2026 03:54	Victor Mercklé	CPPg++14.2.0	Success	3,018
Jun 10, 2026 03:49	Victor Mercklé	CPPg++14.2.0	Success	3,018
Jun 10, 2026 03:44	Victor Mercklé	CPPg++14.2.0	Success	3,035
Jun 10, 2026 03:39	Victor Mercklé	CPPg++14.2.0	Success	3,021
Jun 10, 2026 03:33	Victor Mercklé	CPPg++14.2.0	Success	3,017
Jun 10, 2026 03:28	Victor Mercklé	CPPg++14.2.0	Success	3,011
Jun 10, 2026 03:23	Victor Mercklé	CPPg++14.2.0	Success	3,089
Jun 10, 2026 03:18	Victor Mercklé	CPPg++14.2.0	Success	3,018
Jun 10, 2026 03:13	Victor Mercklé	CPPg++14.2.0	Success	3,017
Jun 10, 2026 03:08	Victor Mercklé	CPPg++14.2.0	Success	3,077
Jun 10, 2026 03:02	Victor Mercklé	CPPg++14.2.0	Success	3,074
Jun 8, 2026 06:23	Victor Mercklé	CPPg++14.2.0	Success	3,013
Jun 8, 2026 06:15	Victor Mercklé	CPPg++14.2.0	Success	3,029
Jun 8, 2026 06:10	Victor Mercklé	CPPg++14.2.0	Success	3,234
Jun 8, 2026 06:05	Victor Mercklé	CPPg++14.2.0	Success	3,009+19.76 RP
Jun 8, 2026 06:00	Victor Mercklé	CPPg++14.2.0	Success	3,027+9.79 RP
Jun 7, 2026 07:02	Victor Mercklé	CPPg++14.2.0	Success	3,051
Jun 7, 2026 06:57	Victor Mercklé	CPPg++14.2.0	Success	3,134
Jun 7, 2026 06:50	Victor Mercklé	CPPg++14.2.0	Success	3,036
Jun 7, 2026 06:45	Victor Mercklé	CPPg++14.2.0	Success	3,036+2.17 RP
Jun 7, 2026 06:40	Victor Mercklé	CPPg++14.2.0	Success	3,038+32.19 RP
Jun 7, 2026 06:35	Victor Mercklé	CPPg++14.2.0	Success	3,072
Jun 7, 2026 06:30	Victor Mercklé	CPPg++14.2.0	Success	4,364
Jun 7, 2026 06:23	Victor Mercklé	CPPg++14.2.0	Success	3,167
Jun 6, 2026 16:17	Victor Mercklé	CPPg++14.2.0	Success	3,068+1.06 RP
Jun 6, 2026 16:11	Victor Mercklé	CPPg++14.2.0	Success	3,076
Jun 6, 2026 16:06	Victor Mercklé	CPPg++14.2.0	Success	3,069+4.24 RP
Jun 6, 2026 15:54	Victor Mercklé	CPPg++14.2.0	Success	3,075
Jun 5, 2026 18:53	Victor Mercklé	CPPg++14.2.0	Success	3,073+18.95 RP
Jun 5, 2026 18:48	Victor Mercklé	CPPg++14.2.0	Success	3,093
Jun 5, 2026 18:32	Victor Mercklé	CPPg++14.2.0	Success	3,097
Jun 4, 2026 19:58	Victor Mercklé	CPPg++14.2.0	Success	3,091+3.14 RP
Jun 4, 2026 19:53	Victor Mercklé	CPPg++14.2.0	Success	3,102
Jun 4, 2026 19:48	Victor Mercklé	CPPg++14.2.0	Success	3,094+5.21 RP
Jun 4, 2026 19:43	Victor Mercklé	CPPg++14.2.0	Success	3,117
Jun 4, 2026 19:38	Victor Mercklé	CPPg++14.2.0	Success	3,099+32.98 RP
Jun 4, 2026 19:33	Victor Mercklé	CPPg++14.2.0	Success	3,142
Jun 4, 2026 19:28	Victor Mercklé	CPPg++14.2.0	Success	3,478
Jun 4, 2026 19:23	Victor Mercklé	CPPg++14.2.0	Success	3,214
Jun 4, 2026 19:17	Victor Mercklé	CPPg++14.2.0	Success	3,847
Jun 4, 2026 19:11	Victor Mercklé	CPPg++14.2.0	Success	3,145
Jun 4, 2026 19:06	Victor Mercklé	CPPg++14.2.0	Success	3,131+13.21 RP
Jun 4, 2026 19:01	Victor Mercklé	CPPg++14.2.0	Success	4,150
Jun 4, 2026 18:56	Victor Mercklé	CPPg++14.2.0	Success	3,161
Jun 4, 2026 18:51	Victor Mercklé	CPPg++14.2.0	Success	3,144+112.24 RP
May 22, 2026 06:28	Daniel	RUSTrust-1.85.0	Success	5,497
May 22, 2026 06:24	Daniel	RUSTrust-1.95.0	Success	11,078
May 22, 2026 06:21	Daniel	RUSTrust-1.95.0	Success	12,754
May 22, 2026 06:17	Daniel	RUSTrust-1.95.0	Success	5,621
May 22, 2026 06:13	Daniel	RUSTrust-1.95.0	Success	5,376
May 20, 2026 12:54	M-Rochat	CPPg++14.2.0	Success	3,086
May 20, 2026 12:54	M-Rochat	CPPg++14.2.0	Success	3,084
May 20, 2026 12:53	M-Rochat	CPPg++14.2.0	Success	3,084+5.25 RP
May 20, 2026 12:52	M-Rochat	CPPg++14.2.0	Success	3,089+2.09 RP
May 20, 2026 12:51	M-Rochat	CPPg++14.2.0	Success	3,100
May 20, 2026 12:50	M-Rochat	CPPg++14.2.0	Success	3,100
May 20, 2026 12:49	M-Rochat	CPPg++14.2.0	Success	3,091+2.09 RP
May 20, 2026 12:47	M-Rochat	CPPg++14.2.0	Success	3,098
May 20, 2026 12:46	M-Rochat	CPPg++14.2.0	Success	3,176
May 20, 2026 12:45	M-Rochat	CPPg++14.2.0	Success	3,189
May 20, 2026 12:44	M-Rochat	CPPg++14.2.0	Success	3,415
May 20, 2026 12:44	M-Rochat	CPPg++14.2.0	Success	3,097
May 20, 2026 12:44	M-Rochat	CPPclang++19.1.1	Success	3,144
May 20, 2026 12:42	M-Rochat	CPPg++14.2.0	Success	3,098
May 20, 2026 12:41	M-Rochat	CPPg++14.2.0	Success	3,104
May 20, 2026 12:40	M-Rochat	CPPg++14.2.0	Success	3,098
May 20, 2026 12:39	M-Rochat	CPPg++14.2.0	Success	3,096
May 20, 2026 12:39	M-Rochat	CPPg++14.2.0	Success	3,107
May 20, 2026 12:38	M-Rochat	CPPg++14.2.0	Success	3,097
May 20, 2026 12:37	M-Rochat	CPPg++14.2.0	Success	3,093+11.46 RP
May 20, 2026 12:36	M-Rochat	CPPg++14.2.0	Success	11,252
May 20, 2026 12:35	M-Rochat	CPPg++14.2.0	Success	3,104+98.60 RP
May 20, 2026 12:33	M-Rochat	CPPg++14.2.0	Success	3,396
May 20, 2026 12:33	M-Rochat	CPPg++14.2.0	Success	3,253
May 20, 2026 12:31	M-Rochat	CPPg++14.2.0	Success	3,211
May 19, 2026 19:19	Andrey Kashenin	CPPg++10.5.0	Success	132,091+75.71 RP
May 19, 2026 19:18	Andrey Kashenin	CPPg++10.5.0	Error
May 19, 2026 19:17	Andrey Kashenin	CPPg++14.2.0	Error

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