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 14, 2026 11:36	Fernando Antunez	CPPg++13.3.0	Success	4,314+779.34 RP
May 14, 2026 00:52	Fernando Antunez	CPPg++13.3.0	Success	8,105
May 13, 2026 15:31	olliecrow	CPPg++13.3.0	Success	3,748
May 13, 2026 15:25	Fernando Antunez	CPPg++10.5.0	Success	6,499+333.88 RP
May 13, 2026 14:35	Fernando Antunez	CPPg++13.3.0	Error
May 13, 2026 14:11	Fernando Antunez	CPPg++13.3.0	Error
May 13, 2026 14:07	Fernando Antunez	CPPg++10.5.0	Error
May 13, 2026 14:00	Fernando Antunez	CPPg++10.5.0	Error
May 13, 2026 13:41	Fernando Antunez	CPPg++13.3.0	Error
May 13, 2026 13:39	Fernando Antunez	CPPclang++20.1.2	Error
May 11, 2026 11:51	Victor Mercklé	CPPg++14.2.0	Success	3,019
May 11, 2026 11:49	Victor Mercklé	CPPg++14.2.0	Success	3,021
May 11, 2026 11:42	Victor Mercklé	CPPg++14.2.0	Success	3,022
May 11, 2026 11:40	Victor Mercklé	CPPg++14.2.0	Error
May 11, 2026 11:36	Victor Mercklé	CPPg++14.2.0	Success	3,089
May 11, 2026 11:34	Victor Mercklé	CPPg++14.2.0	Success	3,011+6.62 RP
May 11, 2026 11:30	Victor Mercklé	CPPg++14.2.0	Success	3,014+8.80 RP
May 11, 2026 11:28	Victor Mercklé	CPPg++14.2.0	Success	3,093
May 11, 2026 11:26	Victor Mercklé	CPPg++14.2.0	Success	3,121
May 11, 2026 11:14	Victor Mercklé	CPPg++14.2.0	Success	3,018+190.73 RP
May 11, 2026 11:12	Victor Mercklé	CPPg++14.2.0	Success	3,313
May 11, 2026 11:03	Victor Mercklé	CPPg++14.2.0	Success	3,166+13.91 RP
May 11, 2026 10:59	Victor Mercklé	CPPg++14.2.0	Success	3,216
May 11, 2026 10:48	Victor Mercklé	CPPg++14.2.0	Success	3,187
May 11, 2026 10:46	Victor Mercklé	CPPg++14.2.0	Success	3,191
May 11, 2026 10:44	Victor Mercklé	CPPg++14.2.0	Success	3,195
May 11, 2026 10:42	Victor Mercklé	CPPg++14.2.0	Success	3,180+3.95 RP
May 11, 2026 10:40	Victor Mercklé	CPPg++14.2.0	Success	3,187
May 11, 2026 08:40	Victor Mercklé	CPPclang++20.1.2	Success	3,206
May 11, 2026 08:29	Victor Mercklé	CPPg++14.2.0	Success	3,196
May 11, 2026 08:05	Victor Mercklé	CPPg++14.2.0	Success	3,190
May 11, 2026 07:53	Victor Mercklé	CPPg++14.2.0	Success	3,189
May 11, 2026 07:42	Victor Mercklé	CPPg++14.2.0	Success	3,353
May 11, 2026 07:07	Victor Mercklé	CPPg++14.2.0	Success	3,184+261.35 RP
May 11, 2026 06:58	Victor Mercklé	CPPg++14.2.0	Success	3,488
May 11, 2026 06:38	Victor Mercklé	CPPg++14.2.0	Success	3,513
May 11, 2026 06:36	Victor Mercklé	CPPg++14.2.0	Success	3,474
May 11, 2026 06:33	Victor Mercklé	CPPg++14.2.0	Success	3,473+518.64 RP
May 11, 2026 06:20	Victor Mercklé	CPPg++14.2.0	Success	4,236+41.07 RP
May 10, 2026 10:25	Fernando Antunez	CPPclang++20.1.2	Success	8,300+1'128.83 RP
May 10, 2026 09:12	Fernando Antunez	RUSTrust-1.95.0	Success	131,595+75.99 RP
May 9, 2026 19:03	Josu San Martin	ZIG0.16.0	Success	3,559
May 7, 2026 16:33	Hung T.Nguyen	CPPg++10.5.0	Error
May 7, 2026 16:32	Hung T.Nguyen	CPPg++10.5.0	Error
May 7, 2026 08:53	Victor Mercklé	CPPg++14.2.0	Success	46,338
May 7, 2026 06:44	Victor Mercklé	CPPg++14.2.0	Error
May 7, 2026 06:34	Victor Mercklé	CPPg++14.2.0	Success	4,311+2'185.23 RP
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

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