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
Oct 20, 2026 07:41	e1011	CPPg++10.5.0	Success	131,663+80.95 RP
Oct 17, 2026 09:02	Kacpxer	CPPg++10.5.0	Success	4,187+2'388.34 RP
Oct 16, 2026 23:17	janwww	CSHARP9.0.15	Success	3,266
Oct 16, 2026 22:53	janwww	ZIG0.15.1	Success	3,196+10.73 RP
Oct 16, 2026 21:16	janwww	RUSTrust-1.95.0	Success	3,207
Oct 15, 2026 16:55	zayd-ansari-code	CPPg++10.5.0	Success	123,600+80.91 RP
Oct 13, 2026 18:48	Karthik Reddy	CPPg++13.3.0	Success	2,851
Oct 13, 2026 07:05	highload-churner	CPPg++13.3.0	Success	2,816+10.08 RP
Oct 13, 2026 05:23	Karthik Reddy	ZIG0.15.1	Success	2,847
Oct 13, 2026 05:22	Karthik Reddy	RUSTrust-1.97.0	Success	2,847
Oct 13, 2026 04:25	Karthik Reddy	CPPclang++18.1.3	Success	2,850
Oct 13, 2026 04:23	Karthik Reddy	CPPclang++18.1.3	Success	2,852
Oct 13, 2026 01:25	highload-churner	CPPg++13.3.0	Success	2,820+57.38 RP
Oct 13, 2026 00:50	highload-churner	CPPg++13.3.0	Success	2,846
Oct 13, 2026 00:50	highload-churner	CPPg++13.3.0	Success	2,851
Oct 13, 2026 00:50	highload-churner	CPPg++13.3.0	Success	2,848
Oct 13, 2026 00:21	highload-churner	CPPg++13.3.0	Success	2,847
Oct 12, 2026 19:50	highload-churner	CPPg++13.3.0	Success	2,849
Oct 12, 2026 17:05	highload-churner	CPPg++13.3.0	Success	2,845
Oct 12, 2026 16:59	highload-churner	CPPg++13.3.0	Success	2,852
Oct 12, 2026 16:53	highload-churner	CPPg++13.3.0	Success	2,845
Oct 12, 2026 16:48	highload-churner	CPPg++13.3.0	Success	2,844
Oct 12, 2026 16:40	highload-churner	CPPg++13.3.0	Success	2,843
Oct 12, 2026 16:32	highload-churner	CPPg++13.3.0	Success	2,844
Oct 12, 2026 16:27	highload-churner	CPPg++13.3.0	Success	2,846
Oct 12, 2026 16:23	highload-churner	CPPg++13.3.0	Success	2,844
Oct 12, 2026 15:23	highload-churner	CPPclang++18.1.3	Success	2,843
Oct 12, 2026 15:21	highload-churner	CPPg++13.3.0	Success	2,894
Oct 12, 2026 15:19	highload-churner	CPPg++13.3.0	Success	2,854
Oct 12, 2026 15:13	highload-churner	CPPg++13.3.0	Success	2,844
Oct 12, 2026 15:01	highload-churner	CPPg++13.3.0	Success	2,856
Oct 12, 2026 14:47	highload-churner	CPPg++13.3.0	Success	2,850
Oct 12, 2026 14:44	highload-churner	CPPg++13.3.0	Success	2,843
Oct 12, 2026 14:43	highload-churner	CPPg++13.3.0	Success	2,845
Oct 12, 2026 14:42	highload-churner	CPPg++13.3.0	Success	2,847
Oct 12, 2026 14:40	highload-churner	CPPg++14.2.0	Success	2,861
Oct 12, 2026 14:38	highload-churner	CPPg++13.3.0	Success	2,846
Oct 12, 2026 14:31	highload-churner	CPPg++13.3.0	Success	2,846
Oct 12, 2026 14:26	highload-churner	CPPg++13.3.0	Success	2,847
Oct 12, 2026 14:19	highload-churner	CPPg++13.3.0	Success	2,843+97.44 RP
Oct 12, 2026 14:01	highload-churner	CPPg++13.3.0	Success	5,339
Oct 12, 2026 13:59	highload-churner	CPPg++13.3.0	Success	2,924+16.30 RP
Oct 12, 2026 13:56	highload-churner	CPPg++13.3.0	Success	3,046
Oct 12, 2026 13:53	highload-churner	CPPg++13.3.0	Success	2,962
Oct 12, 2026 13:45	highload-churner	CPPg++13.3.0	Success	2,938+64.78 RP
Oct 12, 2026 13:39	highload-churner	CPPg++13.3.0	Success	2,995+82.63 RP
Oct 12, 2026 13:32	highload-churner	CPPg++13.3.0	Success	3,536
Oct 12, 2026 13:31	highload-churner	CPPg++13.3.0	Success	3,084
Oct 12, 2026 13:21	highload-churner	CPPg++13.3.0	Success	3,071
Oct 10, 2026 18:39	Karthik Reddy	GOgo1.26.2	Success	2,859
Oct 10, 2026 18:37	Karthik Reddy	ZIG0.15.1	Success	2,864
Oct 10, 2026 18:35	Karthik Reddy	RUSTrust-1.97.0	Success	2,862
Oct 10, 2026 18:34	Karthik Reddy	CSHARP9.0.20	Success	2,866
Oct 10, 2026 18:21	Karthik Reddy	GOgo1.26.2	Success	2,865
Oct 10, 2026 18:18	Karthik Reddy	ZIG0.15.1	Success	2,858
Oct 10, 2026 18:16	Karthik Reddy	RUSTrust-1.97.0	Success	2,858
Oct 10, 2026 18:15	Karthik Reddy	CSHARP9.0.20	Success	2,870
Oct 10, 2026 18:02	Karthik Reddy	GOgo1.26.2	Success	2,859
Oct 10, 2026 17:59	Karthik Reddy	ZIG0.15.1	Success	2,860
Oct 10, 2026 17:58	Karthik Reddy	RUSTrust-1.97.0	Success	2,863
Oct 10, 2026 17:57	Karthik Reddy	CSHARP9.0.20	Success	2,866
Oct 10, 2026 17:45	Karthik Reddy	GOgo1.26.2	Success	2,859
Oct 10, 2026 17:42	Karthik Reddy	ZIG0.15.1	Success	2,860
Oct 10, 2026 17:40	Karthik Reddy	RUSTrust-1.97.0	Success	2,861
Oct 10, 2026 17:39	Karthik Reddy	CSHARP9.0.20	Success	2,874
Oct 10, 2026 17:26	Karthik Reddy	GOgo1.26.2	Success	2,863
Oct 10, 2026 17:23	Karthik Reddy	ZIG0.15.1	Success	2,861
Oct 10, 2026 17:21	Karthik Reddy	RUSTrust-1.97.0	Success	2,857
Oct 10, 2026 17:20	Karthik Reddy	CSHARP9.0.20	Success	2,869
Oct 10, 2026 17:07	Karthik Reddy	GOgo1.26.2	Success	2,866
Oct 10, 2026 17:05	Karthik Reddy	ZIG0.15.1	Success	2,861
Oct 10, 2026 17:03	Karthik Reddy	RUSTrust-1.97.0	Success	2,858
Oct 10, 2026 17:01	Karthik Reddy	CSHARP9.0.20	Success	2,862
Oct 10, 2026 16:48	Karthik Reddy	GOgo1.26.2	Success	2,863
Oct 10, 2026 16:46	Karthik Reddy	ZIG0.15.1	Success	2,861
Oct 10, 2026 16:44	Karthik Reddy	RUSTrust-1.97.0	Success	2,858
Oct 10, 2026 16:43	Karthik Reddy	CSHARP9.0.20	Success	2,868
Oct 10, 2026 16:30	Karthik Reddy	GOgo1.26.2	Success	2,865
Oct 10, 2026 16:27	Karthik Reddy	ZIG0.15.1	Success	2,864
Oct 10, 2026 16:25	Karthik Reddy	RUSTrust-1.97.0	Success	2,865
Oct 10, 2026 16:24	Karthik Reddy	CSHARP9.0.20	Success	2,864
Oct 10, 2026 16:12	Karthik Reddy	GOgo1.26.2	Success	2,863
Oct 10, 2026 16:08	Karthik Reddy	ZIG0.15.1	Success	2,851
Oct 10, 2026 16:06	Karthik Reddy	RUSTrust-1.97.0	Success	2,857
Oct 10, 2026 16:05	Karthik Reddy	CSHARP9.0.20	Success	2,862
Oct 10, 2026 15:55	Karthik Reddy	GOgo1.26.2	Success	2,863
Oct 10, 2026 15:50	Karthik Reddy	ZIG0.15.1	Success	2,857
Oct 10, 2026 15:47	Karthik Reddy	RUSTrust-1.97.0	Success	2,868
Oct 10, 2026 15:46	Karthik Reddy	CSHARP9.0.20	Success	2,865
Oct 10, 2026 15:37	Karthik Reddy	GOgo1.26.2	Success	2,863
Oct 10, 2026 15:33	Karthik Reddy	ZIG0.15.1	Success	2,856
Oct 10, 2026 15:29	Karthik Reddy	RUSTrust-1.97.0	Success	2,859
Oct 10, 2026 15:27	Karthik Reddy	CSHARP9.0.20	Success	2,866
Oct 10, 2026 15:20	Karthik Reddy	GOgo1.26.2	Success	2,859
Oct 10, 2026 15:16	Karthik Reddy	ZIG0.15.1	Success	2,863
Oct 10, 2026 15:13	Karthik Reddy	RUSTrust-1.97.0	Success	2,865
Oct 10, 2026 15:08	Karthik Reddy	CSHARP9.0.20	Success	2,870
Oct 10, 2026 15:02	Karthik Reddy	GOgo1.26.2	Success	2,867
Oct 10, 2026 14:59	Karthik Reddy	ZIG0.15.1	Success	2,861
Oct 10, 2026 14:56	Karthik Reddy	RUSTrust-1.97.0	Success	2,862

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