Blue color from RGBA

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

Input: 125 000 000 pixels in binary RGBA format on STDIN (4 bytes per pixel: R, G, B, A).

Output: Write only the Blue byte of each pixel to STDOUT (125 000 000 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
May 6, 2026 01:18	olliecrow	CPPg++13.3.0	Error
May 5, 2026 03:38	olliecrow	CPPg++13.3.0	Error
May 5, 2026 02:56	olliecrow	CPPg++13.3.0	Error
May 5, 2026 02:50	olliecrow	RUSTrust-1.94.0	Error
May 5, 2026 02:24	olliecrow	CPPg++13.3.0	Error
May 5, 2026 02:15	olliecrow	CPPg++13.3.0	Error
May 5, 2026 02:02	olliecrow	CPPg++13.3.0	Error
May 5, 2026 01:51	olliecrow	CPPg++13.3.0	Error
May 5, 2026 01:27	olliecrow	CPPg++13.3.0	Error
May 5, 2026 01:09	olliecrow	CPPg++13.3.0	Error
May 4, 2026 23:39	olliecrow	RUSTrust-1.94.0	Error
May 4, 2026 23:37	olliecrow	CPPg++13.3.0	Error
May 4, 2026 23:35	olliecrow	RUSTrust-1.94.0	Error
May 4, 2026 23:10	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:28	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:25	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:20	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:17	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:11	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:09	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:07	olliecrow	CPPg++13.3.0	Error
May 4, 2026 22:04	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:58	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:53	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:53	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:50	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:48	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:47	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:46	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:44	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:42	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:38	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:38	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:34	olliecrow	CPPg++13.3.0	Error
May 4, 2026 21:31	olliecrow	CPPg++13.3.0	Error
May 4, 2026 15:17	Victor Mercklé	CPPg++14.2.0	Error
May 1, 2026 06:27	Charles Cabergs	CPPg++13.3.0	Error
May 1, 2026 03:53	Charles Cabergs	CPPg++13.3.0	Error
May 1, 2026 01:57	olliecrow	CPPg++13.3.0	Error
May 1, 2026 01:00	Charles Cabergs	CPPg++13.3.0	Error
Apr 30, 2026 14:22	Charles Cabergs	CPPg++13.3.0	Error
Apr 30, 2026 06:20	Charles Cabergs	CPPg++13.3.0	Error
Apr 30, 2026 03:38	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 22:39	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 19:55	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 19:53	olliecrow	CPPg++13.3.0	Error
Apr 29, 2026 17:05	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 14:22	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 12:43	TudyM	CPPg++10.5.0	Error
Apr 29, 2026 09:11	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 06:24	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 03:54	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 01:12	Charles Cabergs	CPPg++13.3.0	Error
Apr 28, 2026 22:45	Charles Cabergs	CPPg++13.3.0	Error
Apr 28, 2026 20:18	Charles Cabergs	CPPg++13.3.0	Error
Apr 28, 2026 17:46	Charles Cabergs	CPPclang++20.1.2	Error
Apr 28, 2026 13:36	Dominique Garmier	CPPg++13.3.0	Error
Apr 28, 2026 13:35	Dominique Garmier	CPPg++13.3.0	Error
Apr 28, 2026 13:34	Dominique Garmier	CPPg++13.3.0	Error
Apr 28, 2026 13:32	Dominique Garmier	CPPg++13.3.0	Error
Apr 28, 2026 09:19	TudyM	CPPg++10.5.0	Error
Apr 28, 2026 09:14	TudyM	CPPg++10.5.0	Error
Apr 28, 2026 07:00	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 23:16	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 23:09	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 23:02	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 22:55	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 22:43	Victor Mercklé	CPPg++14.2.0	Success	74,397+134.41 RP
Apr 27, 2026 22:36	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 17:59	Charles Cabergs	CPPg++13.3.0	Error
Apr 27, 2026 15:47	Charles Cabergs	CPPg++13.3.0	Error
Apr 27, 2026 05:39	Charles Cabergs	CPPg++13.3.0	Error
Apr 27, 2026 03:00	Charles Cabergs	CPPg++13.3.0	Error
Apr 27, 2026 00:13	Charles Cabergs	CPPg++13.3.0	Error
Apr 26, 2026 21:41	Charles Cabergs	CPPg++13.3.0	Error
Apr 26, 2026 19:29	Charles Cabergs	CPPg++13.3.0	Error
Apr 26, 2026 18:48	TudyM	CPPg++10.5.0	Error
Apr 26, 2026 18:47	TudyM	CPPg++10.5.0	Error
Apr 26, 2026 17:00	TudyM	CPPg++10.5.0	Success	8,072+1'243.85 RP
Apr 26, 2026 16:03	Charles Cabergs	CPPg++13.3.0	Success	6,853+6.78 RP
Apr 26, 2026 13:44	Charles Cabergs	CPPg++13.3.0	Success	6,895
Apr 26, 2026 10:28	Charles Cabergs	CPPg++13.3.0	Success	6,912
Apr 26, 2026 07:59	Charles Cabergs	CPPg++13.3.0	Success	6,930
Apr 26, 2026 05:05	Charles Cabergs	CPPg++13.3.0	Success	6,938
Apr 26, 2026 04:31	limanjun99	CPPg++13.3.0	Success	3,502+5.00 RP
Apr 26, 2026 03:50	olliecrow	CPPg++13.3.0	Success	3,066+5.00 RP
Apr 26, 2026 02:13	Charles Cabergs	CPPclang++18.1.3	Success	7,007+5.00 RP
Apr 25, 2026 23:46	Charles Cabergs	CPPg++13.3.0	Success	6,939
Apr 25, 2026 15:31	olliecrow	RUSTrust-1.94.0	Success	3,104
Apr 25, 2026 15:13	olliecrow	CPPg++13.3.0	Success	3,099
Apr 24, 2026 11:15	Charles Cabergs	CPPg++13.3.0	Success	6,937
Apr 23, 2026 23:56	Charles Cabergs	CPPg++13.3.0	Success	7,063
Apr 23, 2026 17:53	olliecrow	RUSTrust-1.94.0	Success	3,133
Apr 23, 2026 17:41	Charles Cabergs	CPPg++13.3.0	Success	6,962
Apr 23, 2026 03:00	Charles Cabergs	CPPg++13.3.0	Success	7,006
Apr 23, 2026 02:41	olliecrow	RUSTrust-1.95.0	Error
Apr 22, 2026 23:10	Charles Cabergs	CPPg++13.3.0	Success	6,965
Apr 22, 2026 21:33	Charles Cabergs	CPPg++13.3.0	Success	6,885+1.26 RP
Apr 22, 2026 19:36	Charles Cabergs	CPPg++13.3.0	Success	6,962
Apr 22, 2026 14:23	Dominique Garmier	CPPg++13.3.0	Success	5,443

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