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	1:20.1.2-0ubuntu1~24.04.3	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
Jun 27, 2026 19:33	Shikhar Soni	CPPg++13.3.0	Success	3,544
Jun 27, 2026 19:29	Shikhar Soni	CPPg++13.3.0	Success	3,485+17.19 RP
Jun 27, 2026 19:29	Shikhar Soni	CPPg++14.2.0	Success	3,506+2'852.25 RP
Jun 26, 2026 17:57	A_Shaman	CPPg++10.5.0	Success	5,433
Jun 26, 2026 17:54	A_Shaman	CPPg++10.5.0	Success	5,767
Jun 26, 2026 17:51	A_Shaman	CPPg++10.5.0	Success	5,191
Jun 26, 2026 17:46	A_Shaman	CPPg++10.5.0	Success	5,328
Jun 26, 2026 17:43	A_Shaman	CPPg++10.5.0	Success	5,190
Jun 26, 2026 09:51	Victor Mercklé	CPPg++14.2.0	Success	3,821
Jun 26, 2026 09:33	Victor Mercklé	CPPg++14.2.0	Success	1,192,167
Jun 22, 2026 12:00	A_Shaman	CPPg++10.5.0	Success	5,188+9.24 RP
Jun 22, 2026 11:55	A_Shaman	CPPg++10.5.0	Success	5,263
Jun 22, 2026 11:51	A_Shaman	CPPg++10.5.0	Success	5,250
Jun 22, 2026 11:46	A_Shaman	CPPg++10.5.0	Success	5,257
Jun 22, 2026 11:40	A_Shaman	CPPg++10.5.0	Success	10,284
Jun 21, 2026 15:11	A_Shaman	CPPg++10.5.0	Success	5,213+10.61 RP
Jun 21, 2026 15:08	A_Shaman	CPPg++10.5.0	Success	8,380
Jun 21, 2026 15:07	A_Shaman	CPPg++10.5.0	Success	6,023
Jun 21, 2026 15:06	A_Shaman	CPPg++10.5.0	Success	5,242+3.99 RP
Jun 21, 2026 15:03	A_Shaman	CPPg++10.5.0	Success	5,294
Jun 21, 2026 15:00	A_Shaman	CPPg++10.5.0	Success	5,313
Jun 21, 2026 14:59	A_Shaman	CPPg++10.5.0	Success	5,253+699.44 RP
Jun 21, 2026 14:56	A_Shaman	CPPg++10.5.0	Success	9,294
Jun 21, 2026 14:54	A_Shaman	CPPg++10.5.0	Success	8,304+214.43 RP
Jun 21, 2026 14:52	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 05:57	Elijah Kin	CPPg++14.2.0	Success	3,213
Jun 21, 2026 05:52	Elijah Kin	CPPg++14.2.0	Success	3,713
Jun 21, 2026 05:47	Elijah Kin	CPPg++14.2.0	Success	3,027
Jun 21, 2026 05:44	Elijah Kin	CPPg++14.2.0	Success	3,024
Jun 21, 2026 05:43	Elijah Kin	CPPg++14.2.0	Success	3,027
Jun 21, 2026 05:41	Elijah Kin	CPPg++14.2.0	Success	3,023
Jun 21, 2026 05:38	Elijah Kin	CPPg++14.2.0	Success	3,049
Jun 21, 2026 05:37	Elijah Kin	CPPclang++20.1.2	Success	3,104
Jun 21, 2026 05:34	Elijah Kin	CPPclang++20.1.2	Success	3,099
Jun 21, 2026 05:33	Elijah Kin	CPPg++14.2.0	Success	3,052
Jun 21, 2026 05:31	Elijah Kin	CPPclang++20.1.2	Success	3,094
Jun 21, 2026 05:23	Elijah Kin	CPPclang++20.1.2	Success	3,103
Jun 21, 2026 05:15	Elijah Kin	CPPg++14.2.0	Success	3,709
Jun 21, 2026 05:12	Elijah Kin	CPPg++14.2.0	Success	3,023
Jun 21, 2026 05:11	Elijah Kin	CPPg++14.2.0	Success	3,022
Jun 21, 2026 05:09	Elijah Kin	CPPg++14.2.0	Success	3,027
Jun 21, 2026 05:07	Elijah Kin	CPPg++14.2.0	Success	3,021
Jun 21, 2026 04:59	Elijah Kin	CPPg++14.2.0	Success	4,247
Jun 20, 2026 15:49	A_Shaman	CPPg++10.5.0	Success	16,100
Jun 20, 2026 15:44	A_Shaman	CPPg++10.5.0	Success	18,559
Jun 20, 2026 15:42	A_Shaman	CPPg++10.5.0	Success	12,085
Jun 20, 2026 15:40	A_Shaman	CPPg++10.5.0	Success	12,995
Jun 20, 2026 15:36	A_Shaman	CPPg++10.5.0	Success	11,679
Jun 20, 2026 10:49	A_Shaman	CPPg++10.5.0	Success	17,709
Jun 20, 2026 10:47	A_Shaman	CPPg++10.5.0	Success	10,587
Jun 20, 2026 10:44	A_Shaman	CPPg++10.5.0	Success	10,103+20.81 RP
Jun 20, 2026 10:42	A_Shaman	CPPg++10.5.0	Success	10,320+96.70 RP
Jun 20, 2026 10:40	A_Shaman	CPPg++10.5.0	Success	11,464+872.30 RP
Jun 20, 2026 07:40	A_Shaman	CPPg++10.5.0	Error
Jun 19, 2026 10:46	Victor Mercklé	CPPg++14.2.0	Success	3,028
Jun 19, 2026 10:39	Victor Mercklé	CPPg++14.2.0	Error
Jun 19, 2026 10:32	Victor Mercklé	CPPg++14.2.0	Success	3,020
Jun 19, 2026 02:35	Victor Mercklé	CPPg++14.2.0	Success	3,698
Jun 19, 2026 02:30	Victor Mercklé	CPPg++14.2.0	Success	3,182
Jun 19, 2026 02:25	Victor Mercklé	CPPg++14.2.0	Success	3,026
Jun 19, 2026 02:18	Victor Mercklé	CPPg++14.2.0	Success	3,017
Jun 19, 2026 02:12	Victor Mercklé	CPPg++14.2.0	Success	3,020
Jun 18, 2026 18:22	Victor Mercklé	CPPg++14.2.0	Success	3,016
Jun 18, 2026 18:17	Victor Mercklé	CPPg++14.2.0	Success	3,017
Jun 18, 2026 18:10	Victor Mercklé	CPPg++14.2.0	Success	3,277
Jun 18, 2026 10:47	Victor Mercklé	CPPg++14.2.0	Success	3,126
Jun 18, 2026 10:42	Victor Mercklé	CPPg++14.2.0	Success	3,021
Jun 18, 2026 10:37	Victor Mercklé	CPPg++14.2.0	Success	3,014
Jun 18, 2026 10:32	Victor Mercklé	CPPg++14.2.0	Success	3,016
Jun 18, 2026 10:27	Victor Mercklé	CPPg++14.2.0	Success	3,018
Jun 18, 2026 10:22	Victor Mercklé	CPPg++14.2.0	Success	3,016
Jun 18, 2026 10:17	Victor Mercklé	CPPg++14.2.0	Success	3,017
Jun 18, 2026 10:12	Victor Mercklé	CPPg++14.2.0	Success	3,024
Jun 18, 2026 00:47	Victor Mercklé	CPPg++14.2.0	Success	3,426
Jun 18, 2026 00:42	Victor Mercklé	CPPg++14.2.0	Success	3,019
Jun 18, 2026 00:37	Victor Mercklé	CPPg++14.2.0	Error
Jun 18, 2026 00:29	Victor Mercklé	CPPg++14.2.0	Success	3,019
Jun 18, 2026 00:24	Victor Mercklé	CPPg++14.2.0	Success	3,020
Jun 17, 2026 21:47	chereshnya123	CPPg++10.5.0	Success	140,598+71.12 RP
Jun 17, 2026 11:51	Victor Mercklé	CPPg++14.2.0	Success	3,022
Jun 17, 2026 11:46	Victor Mercklé	CPPg++14.2.0	Success	3,016
Jun 17, 2026 11:41	Victor Mercklé	CPPg++14.2.0	Error
Jun 17, 2026 11:36	Victor Mercklé	CPPg++14.2.0	Error
Jun 17, 2026 11:31	Victor Mercklé	CPPg++14.2.0	Success	3,018
Jun 17, 2026 11:26	Victor Mercklé	CPPg++14.2.0	Success	3,015
Jun 17, 2026 11:21	Victor Mercklé	CPPg++14.2.0	Success	3,017
Jun 14, 2026 07:46	Elijah Kin	CPPg++14.2.0	Success	3,051
Jun 14, 2026 07:40	Elijah Kin	CPPg++14.2.0	Success	112,289
Jun 14, 2026 07:25	Elijah Kin	CPPg++14.2.0	Success	111,750
Jun 14, 2026 07:12	Elijah Kin	CPPg++14.2.0	Success	3,040
Jun 14, 2026 07:09	Elijah Kin	CPPg++14.2.0	Success	3,044
Jun 14, 2026 07:05	Elijah Kin	CPPg++14.2.0	Success	3,019
Jun 14, 2026 07:03	Elijah Kin	CPPg++14.2.0	Success	3,032
Jun 14, 2026 07:01	Elijah Kin	CPPg++14.2.0	Success	3,032
Jun 14, 2026 07:00	Elijah Kin	CPPg++14.2.0	Success	3,032
Jun 14, 2026 06:59	Elijah Kin	CPPg++14.2.0	Success	3,035
Jun 14, 2026 06:58	Elijah Kin	CPPg++14.2.0	Success	3,033
Jun 14, 2026 06:56	Elijah Kin	CPPg++14.2.0	Success	3,018
Jun 14, 2026 06:54	Elijah Kin	CPPg++14.2.0	Success	3,037
Jun 14, 2026 06:51	Elijah Kin	CPPg++14.2.0	Success	3,039

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