Blue color from RGB

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

Input: 150 000 000 pixels in binary RGB format on STDIN (3 bytes per pixel: R, G, B).

Output: Write only the Blue byte of each pixel to STDOUT (150 000 000 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 28, 2026 09:11	A_Shaman	CPPg++10.5.0	Success	6,508
Jun 28, 2026 09:07	A_Shaman	CPPg++10.5.0	Success	5,687
Jun 28, 2026 09:03	A_Shaman	CPPg++10.5.0	Success	5,689
Jun 28, 2026 00:49	A_Shaman	CPPg++10.5.0	Success	9,785
Jun 28, 2026 00:45	A_Shaman	CPPg++10.5.0	Success	5,686
Jun 28, 2026 00:41	A_Shaman	CPPg++10.5.0	Success	5,634
Jun 27, 2026 23:55	A_Shaman	CPPg++10.5.0	Success	6,073
Jun 27, 2026 23:50	A_Shaman	CPPg++10.5.0	Success	6,121
Jun 27, 2026 23:45	A_Shaman	CPPg++10.5.0	Success	5,496
Jun 27, 2026 18:46	Shikhar Soni	CPPg++13.3.0	Success	3,414
Jun 27, 2026 18:45	Shikhar Soni	CPPg++14.2.0	Success	3,433
Jun 27, 2026 18:45	Shikhar Soni	CPPg++13.3.0	Success	3,409+17.11 RP
Jun 27, 2026 18:42	Shikhar Soni	CPPg++13.3.0	Success	3,438
Jun 27, 2026 18:41	Shikhar Soni	CPPclang++20.1.2	Success	3,569
Jun 27, 2026 18:40	Shikhar Soni	CPPg++13.3.0	Success	3,429+4.25 RP
Jun 27, 2026 18:39	Shikhar Soni	CPPg++14.2.0	Success	3,450
Jun 27, 2026 18:38	Shikhar Soni	CPPg++14.2.0	Success	3,434+11.82 RP
Jun 27, 2026 18:31	Shikhar Soni	CPPg++14.2.0	Success	3,448+1'988.57 RP
Jun 27, 2026 18:24	Shikhar Soni	CPPg++14.2.0	Success	10,969+911.66 RP
Jun 26, 2026 20:02	Victor Mercklé	ZIG0.16.0	Success	1,861+2'065.48 RP
Jun 26, 2026 19:45	Victor Mercklé	GOgo1.26.2	Success	1,947
Jun 26, 2026 19:40	Victor Mercklé	GOgo1.26.2	Success	1,939+1'932.53 RP
Jun 26, 2026 19:35	Victor Mercklé	GOgo1.26.2	Error
Jun 26, 2026 19:20	Victor Mercklé	GOgo1.26.2	Error
Jun 26, 2026 18:59	Victor Mercklé	GOgo1.26.2	Error
Jun 26, 2026 18:17	Victor Mercklé	CSHARP10.0.7	Success	1,945+1'918.70 RP
Jun 26, 2026 18:09	Victor Mercklé	CSHARP10.0.7	Error
Jun 26, 2026 18:05	Victor Mercklé	CSHARP10.0.7	Error
Jun 26, 2026 17:38	A_Shaman	CPPg++10.5.0	Success	5,020
Jun 26, 2026 17:31	A_Shaman	CPPg++10.5.0	Success	4,943
Jun 26, 2026 17:27	A_Shaman	CPPg++10.5.0	Success	4,925
Jun 26, 2026 17:24	A_Shaman	CPPg++10.5.0	Success	4,916+7.01 RP
Jun 26, 2026 17:19	A_Shaman	CPPg++10.5.0	Success	4,933+227.31 RP
Jun 26, 2026 16:24	Victor Mercklé	RUSTrust-1.95.0	Success	1,857+2'069.38 RP
Jun 26, 2026 16:14	Victor Mercklé	RUSTrust-1.95.0	Error
Jun 26, 2026 16:01	Victor Mercklé	CPPg++14.2.0	Success	2,028
Jun 26, 2026 15:56	Victor Mercklé	CPPg++14.2.0	Success	8,056
Jun 26, 2026 15:49	Victor Mercklé	CPPg++14.2.0	Success	1,858
Jun 26, 2026 15:41	Victor Mercklé	CPPg++14.2.0	Success	1,859
Jun 26, 2026 15:36	Victor Mercklé	CPPg++14.2.0	Success	1,857
Jun 26, 2026 15:31	Victor Mercklé	CPPg++14.2.0	Success	1,889
Jun 26, 2026 15:26	Victor Mercklé	CPPg++14.2.0	Success	1,860
Jun 26, 2026 15:19	Victor Mercklé	CPPg++14.2.0	Success	3,623
Jun 26, 2026 15:14	Victor Mercklé	CPPg++14.2.0	Success	3,918
Jun 26, 2026 15:09	Victor Mercklé	CPPg++14.2.0	Success	1,861
Jun 26, 2026 15:04	Victor Mercklé	CPPg++14.2.0	Success	1,855
Jun 26, 2026 14:59	Victor Mercklé	CPPg++14.2.0	Success	2,557
Jun 26, 2026 14:43	Victor Mercklé	CPPg++14.2.0	Success	1,857
Jun 26, 2026 14:36	Victor Mercklé	CPPg++14.2.0	Success	1,855+23.20 RP
Jun 26, 2026 14:30	Victor Mercklé	CPPg++14.2.0	Success	1,859
Jun 26, 2026 14:15	Victor Mercklé	CPPg++14.2.0	Success	1,860
Jun 26, 2026 14:10	Victor Mercklé	CPPg++14.2.0	Success	1,859+11.56 RP
Jun 26, 2026 14:05	Victor Mercklé	CPPg++14.2.0	Success	1,861+630.58 RP
Jun 26, 2026 13:57	Victor Mercklé	CPPg++14.2.0	Success	1,977+71.14 RP
Jun 26, 2026 13:52	Victor Mercklé	CPPg++14.2.0	Success	1,991+178.40 RP
Jun 26, 2026 09:00	Victor Mercklé	CPPg++14.2.0	Success	675,375
Jun 26, 2026 08:02	Victor Mercklé	CPPg++14.2.0	Success	2,027+1'341.64 RP
Jun 26, 2026 07:50	Victor Mercklé	CPPg++14.2.0	Success	16,252
Jun 26, 2026 07:38	Victor Mercklé	CPPg++14.2.0	Success	3,201
Jun 26, 2026 07:33	Victor Mercklé	CPPg++14.2.0	Success	31,041
Jun 26, 2026 07:26	Victor Mercklé	CPPg++14.2.0	Success	3,200
Jun 26, 2026 06:39	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 05:33	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 03:56	Victor Mercklé	CPPg++14.2.0	Success	75,046
Jun 26, 2026 03:43	Victor Mercklé	CPPg++14.2.0	Success	2,346+10.88 RP
Jun 26, 2026 03:37	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 03:29	Victor Mercklé	CPPg++14.2.0	Success	2,349+96.76 RP
Jun 26, 2026 02:43	Victor Mercklé	CPPg++14.2.0	Success	2,376+166.68 RP
Jun 26, 2026 02:38	Victor Mercklé	CPPg++14.2.0	Success	2,424+760.18 RP
Jun 26, 2026 02:33	Victor Mercklé	CPPg++14.2.0	Success	2,670+683.28 RP
Jun 26, 2026 02:22	Victor Mercklé	CPPg++14.2.0	Success	7,404
Jun 26, 2026 02:17	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 01:46	Victor Mercklé	CPPg++14.2.0	Success	34,624
Jun 26, 2026 01:27	Victor Mercklé	CPPg++14.2.0	Success	16,036
Jun 26, 2026 01:15	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 01:10	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 01:05	Victor Mercklé	CPPg++14.2.0	Error
Jun 26, 2026 00:34	Victor Mercklé	CPPg++14.2.0	Success	2,938+151.76 RP
Jun 25, 2026 23:14	Victor Mercklé	CPPg++14.2.0	Success	3,020
Jun 25, 2026 22:31	Victor Mercklé	CPPg++14.2.0	Success	3,043
Jun 25, 2026 22:26	Victor Mercklé	CPPg++14.2.0	Success	11,165
Jun 25, 2026 21:18	Victor Mercklé	CPPg++14.2.0	Success	3,215
Jun 25, 2026 21:02	Victor Mercklé	CPPg++14.2.0	Success	3,014
Jun 25, 2026 20:35	Victor Mercklé	CPPg++14.2.0	Success	3,114
Jun 25, 2026 20:30	Victor Mercklé	CPPg++14.2.0	Success	3,257
Jun 25, 2026 19:09	Victor Mercklé	CPPg++14.2.0	Success	4,404
Jun 25, 2026 19:00	Victor Mercklé	CPPg++14.2.0	Success	3,021
Jun 25, 2026 18:46	Victor Mercklé	CPPg++14.2.0	Success	3,108
Jun 25, 2026 18:36	Victor Mercklé	CPPg++14.2.0	Success	3,123
Jun 25, 2026 18:23	Victor Mercklé	CPPg++14.2.0	Success	3,213
Jun 25, 2026 18:13	Victor Mercklé	CPPg++14.2.0	Success	3,423
Jun 25, 2026 18:08	Victor Mercklé	CPPg++14.2.0	Success	3,425
Jun 25, 2026 18:03	Victor Mercklé	CPPg++14.2.0	Error
Jun 25, 2026 17:53	Victor Mercklé	CPPg++14.2.0	Success	3,199
Jun 25, 2026 17:09	Victor Mercklé	CPPg++14.2.0	Success	3,259
Jun 25, 2026 17:01	Victor Mercklé	CPPg++14.2.0	Success	10,047
Jun 25, 2026 16:56	Victor Mercklé	CPPg++14.2.0	Error
Jun 24, 2026 00:42	Victor Mercklé	CPPg++14.2.0	Success	3,015
Jun 24, 2026 00:28	Victor Mercklé	CPPg++14.2.0	Success	3,020
Jun 24, 2026 00:23	Victor Mercklé	CPPg++14.2.0	Success	3,026

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