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
Sep 19, 2026 13:27	Andrew Epstein	CPPg++14.2.0	Success	6,441
Sep 19, 2026 13:25	Andrew Epstein	CPPg++14.2.0	Success	430,779
Sep 16, 2026 23:22	Andrew Epstein	CPPg++14.2.0	Success	41,584
Sep 16, 2026 00:37	Andrew Epstein	GOgo1.26.2	Success	2,886+217.20 RP
Sep 16, 2026 00:35	Andrew Epstein	ZIG0.15.1	Success	2,867+118.69 RP
Sep 16, 2026 00:35	Andrew Epstein	RUSTrust-1.95.0	Success	2,879+107.56 RP
Sep 16, 2026 00:33	Andrew Epstein	CSHARP10.0.8	Success	2,888+168.80 RP
Sep 16, 2026 00:23	Andrew Epstein	CPPg++14.2.0	Success	2,864+9.74 RP
Sep 16, 2026 00:21	Andrew Epstein	CPPg++14.2.0	Success	3,161
Sep 16, 2026 00:20	Andrew Epstein	CPPg++14.2.0	Success	2,868+251.71 RP
Sep 16, 2026 00:20	Andrew Epstein	CPPg++14.2.0	Success	3,131
Sep 16, 2026 00:18	Andrew Epstein	CPPg++14.2.0	Success	2,996
Sep 16, 2026 00:15	Andrew Epstein	CPPg++14.2.0	Success	2,993+16.66 RP
Sep 16, 2026 00:14	Andrew Epstein	CPPg++14.2.0	Success	3,035
Sep 16, 2026 00:13	Andrew Epstein	CPPg++14.2.0	Success	3,472
Sep 16, 2026 00:12	Andrew Epstein	CPPg++14.2.0	Success	3,164
Sep 16, 2026 00:12	Andrew Epstein	CPPg++14.2.0	Success	3,008+68.20 RP
Sep 16, 2026 00:10	Andrew Epstein	CPPg++14.2.0	Success	3,321
Sep 16, 2026 00:08	Andrew Epstein	CPPg++14.2.0	Success	3,071+108.64 RP
Sep 16, 2026 00:07	Andrew Epstein	CPPg++14.2.0	Success	3,177+21.65 RP
Sep 16, 2026 00:03	Andrew Epstein	CPPg++14.2.0	Success	3,199+4.88 RP
Sep 15, 2026 14:31	Haha Expert	CPPg++14.2.0	Success	5,189
Sep 15, 2026 14:28	Haha Expert	CPPg++14.2.0	Success	4,284
Sep 15, 2026 14:28	Haha Expert	CPPg++14.2.0	Success	4,288
Sep 15, 2026 14:27	Haha Expert	CPPg++14.2.0	Success	4,260
Sep 15, 2026 14:25	Haha Expert	CPPg++14.2.0	Success	4,495
Sep 15, 2026 14:20	Haha Expert	CPPg++14.2.0	Success	4,249+1'367.20 RP
Sep 4, 2026 08:53	Victor Mercklé	CPPg++14.2.0	Success	3,256
Sep 4, 2026 07:59	Victor Mercklé	CPPg++14.2.0	Success	3,004
Sep 4, 2026 07:43	Victor Mercklé	CPPg++14.2.0	Success	3,516
Sep 4, 2026 07:35	Victor Mercklé	CPPg++14.2.0	Success	3,276
Sep 4, 2026 07:26	Victor Mercklé	CPPg++14.2.0	Success	3,236
Sep 4, 2026 07:18	Victor Mercklé	CPPg++14.2.0	Success	3,073
Sep 4, 2026 07:07	Victor Mercklé	CPPg++14.2.0	Success	3,114
Sep 4, 2026 07:02	Victor Mercklé	CPPg++14.2.0	Success	2,966
Aug 31, 2026 02:04	Tomislav Tunkovic	CSHARP9.0.15	Success	3,036+75.27 RP
Aug 28, 2026 06:28	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 06:22	Haha Expert	CSHARP10.0.11	Success	11,055
Aug 28, 2026 05:58	Haha Expert	CSHARP10.0.11	Success	10,194
Aug 28, 2026 05:57	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 05:52	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 05:40	Haha Expert	CSHARP9.0.19	Success	14,333
Aug 26, 2026 18:50	Tomislav Tunkovic	CPPg++14.2.0	Error
Aug 26, 2026 16:18	Tomislav Tunkovic	CPPg++14.2.0	Error
Aug 26, 2026 16:10	Tomislav Tunkovic	CPPg++14.2.0	Error
Aug 26, 2026 16:09	Tomislav Tunkovic	CPPg++14.2.0	Error
Aug 26, 2026 15:03	Tomislav Tunkovic	CPPg++14.2.0	Error
Aug 25, 2026 07:25	Tomislav Tunkovic	CSHARP9.0.15	Error
Aug 24, 2026 01:16	Andrew Epstein	CPPg++14.2.0	Success	3,205
Aug 24, 2026 01:11	Andrew Epstein	CPPg++10.5.0	Success	3,204+9.71 RP
Aug 23, 2026 14:58	Andrew Epstein	CPPg++14.2.0	Success	3,214+3'034.87 RP
Aug 21, 2026 19:31	Andrew Epstein	CPPg++14.2.0	Success	130,690+76.52 RP
Aug 17, 2026 18:46	Tomislav Tunkovic	CSHARP9.0.15	Error
Aug 17, 2026 17:14	Tomislav Tunkovic	CSHARP9.0.15	Error
Aug 17, 2026 17:11	Tomislav Tunkovic	GOgo1.26.2	Success	3,079+12.61 RP
Aug 17, 2026 06:46	marko1597	CPPg++14.2.0	Success	3,014
Aug 17, 2026 06:46	marko1597	CPPg++14.2.0	Success	3,009
Aug 17, 2026 06:46	marko1597	CPPg++14.2.0	Success	3,020
Aug 17, 2026 06:40	marko1597	CPPg++14.2.0	Success	3,009+45.75 RP
Aug 17, 2026 06:37	marko1597	CPPg++14.2.0	Success	3,187
Aug 17, 2026 06:27	marko1597	CPPg++14.2.0	Success	3,051+10.71 RP
Aug 17, 2026 06:22	marko1597	CPPclang++16.0.6	Success	3,115
Aug 17, 2026 06:22	marko1597	CPPclang++20.1.2	Success	3,119
Aug 17, 2026 06:22	marko1597	CPPg++13.3.0	Success	3,064
Aug 17, 2026 06:16	marko1597	CPPg++14.2.0	Success	3,160
Aug 17, 2026 06:11	marko1597	CPPg++14.2.0	Success	3,061+303.94 RP
Aug 17, 2026 05:55	marko1597	CPPg++14.2.0	Success	3,375+633.59 RP
Aug 17, 2026 01:29	marko1597	CPPg++14.2.0	Success	4,293+2'329.37 RP
Aug 16, 2026 22:55	Tomislav Tunkovic	ZIG0.15.1	Success	2,968+81.96 RP
Aug 16, 2026 22:55	Tomislav Tunkovic	CSHARP9.0.15	Success	4,666
Aug 16, 2026 22:55	Tomislav Tunkovic	RUSTrust-1.95.0	Success	2,971+51.32 RP
Aug 16, 2026 22:55	Tomislav Tunkovic	GOgo1.26.2	Success	7,385
Aug 15, 2026 15:19	Tomislav Tunkovic	CPPg++14.2.0	Success	2,958+27.31 RP
Aug 15, 2026 15:17	Tomislav Tunkovic	CPPg++14.2.0	Success	2,974+25.80 RP
Aug 15, 2026 15:09	Tomislav Tunkovic	CPPclang++20.1.2	Success	3,053
Aug 14, 2026 23:56	Tomislav Tunkovic	CPPg++14.2.0	Success	3,547
Aug 14, 2026 23:36	Tomislav Tunkovic	CPPg++13.3.0	Success	3,043
Aug 14, 2026 23:23	Tomislav Tunkovic	CPPg++14.2.0	Success	3,043
Aug 14, 2026 23:19	Tomislav Tunkovic	CPPg++14.2.0	Success	2,997+16.62 RP
Aug 14, 2026 23:09	Tomislav Tunkovic	CPPg++14.2.0	Success	3,013
Aug 14, 2026 22:59	Tomislav Tunkovic	CPPg++14.2.0	Success	3,012+38.14 RP
Aug 14, 2026 22:26	Tomislav Tunkovic	CPPg++14.2.0	Success	3,047+9.67 RP
Aug 14, 2026 22:20	Tomislav Tunkovic	CPPg++14.2.0	Success	3,093
Aug 14, 2026 21:34	Tomislav Tunkovic	CPPg++14.2.0	Success	6,663
Aug 14, 2026 21:30	Tomislav Tunkovic	CPPg++13.3.0	Success	3,059
Aug 14, 2026 21:28	Tomislav Tunkovic	CPPclang++20.1.2	Success	3,114
Aug 14, 2026 21:23	Tomislav Tunkovic	CPPg++14.2.0	Success	3,056+111.70 RP
Aug 14, 2026 21:14	Tomislav Tunkovic	CPPg++14.2.0	Success	3,263
Aug 14, 2026 21:05	Tomislav Tunkovic	CPPg++14.2.0	Success	3,218
Aug 14, 2026 20:52	Tomislav Tunkovic	CPPg++14.2.0	Success	3,690
Aug 14, 2026 20:43	Tomislav Tunkovic	CPPg++14.2.0	Success	3,164+357.87 RP
Aug 14, 2026 20:25	Tomislav Tunkovic	CPPg++14.2.0	Success	3,971
Aug 14, 2026 20:17	Tomislav Tunkovic	CPPg++14.2.0	Success	3,568+506.48 RP
Aug 14, 2026 19:52	Tomislav Tunkovic	CPPg++14.2.0	Success	4,499
Aug 14, 2026 19:02	Tomislav Tunkovic	CPPg++14.2.0	Success	4,355+2'296.21 RP
Aug 3, 2026 01:51	Victor Mercklé	CPPg++14.2.0	Success	2,966+93.04 RP
Aug 3, 2026 01:43	Victor Mercklé	CPPg++14.2.0	Success	3,037
Aug 2, 2026 19:40	Victor Mercklé	CPPg++14.2.0	Success	3,024
Jul 31, 2026 06:15	Tony	CPPg++10.5.0	Success	135,185+73.97 RP
Jul 19, 2026 22:39	Andrew Tsibin	RUSTrust-1.95.0	Success	3,213+14.46 RP

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