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.

Back to listOct 29, 2025 20:10

AnSa

Score: 3,127

Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 29, 2025 20:12	3,109	72,366,994	29,673,000	13,847,000	151,425,024
2	Oct 29, 2025 06:35	3,110	61,442,378	28,699,000	14,844,000	151,425,024
3	Oct 29, 2025 20:12	3,112	65,199,111	28,716,000	14,853,000	151,166,976
4	Oct 29, 2025 20:11	3,113	68,133,043	29,719,000	13,869,000	151,171,072
5	Oct 29, 2025 20:11	3,113	68,501,435	28,724,000	14,857,000	151,379,968
6	Oct 29, 2025 20:12	3,114	68,138,507	28,730,000	14,860,000	151,429,120
7	Oct 29, 2025 20:11	3,115	64,162,418	28,744,000	14,867,000	151,384,064
8	Oct 29, 2025 20:13	3,116	70,157,501	28,748,000	14,870,000	151,429,120
9	Oct 29, 2025 20:11	3,117	72,006,470	28,759,000	14,875,000	151,429,120
10	Oct 29, 2025 20:11	3,117	68,097,490	28,758,000	14,874,000	151,429,120
11	Oct 29, 2025 20:12	3,118	65,211,535	29,765,000	13,890,000	151,429,120
12	Oct 29, 2025 20:12	3,118	66,859,336	28,769,000	14,880,000	151,396,352
13	Oct 29, 2025 06:35	3,119	73,334,858	28,776,000	14,884,000	151,433,216
14	Oct 29, 2025 20:12	3,119	74,365,398	28,779,000	14,885,000	151,433,216
15	Oct 29, 2025 06:35	3,119	68,326,761	28,777,000	14,884,000	151,396,352
16	Oct 29, 2025 20:12	3,120	62,182,253	28,786,000	14,889,000	151,388,160
17	Oct 29, 2025 20:13	3,121	68,635,281	28,794,000	14,893,000	151,429,120
18	Oct 29, 2025 20:11	3,121	73,792,622	28,795,000	14,894,000	151,433,216
19	Oct 29, 2025 20:12	3,121	63,203,513	28,797,000	14,895,000	151,429,120
20	Oct 29, 2025 20:11	3,122	66,351,656	28,811,000	14,902,000	151,396,352
21	Oct 29, 2025 20:11	3,122	64,977,626	28,805,000	14,899,000	151,429,120
22	Oct 29, 2025 06:35	3,122	70,230,244	28,812,000	14,902,000	151,420,928
23	Oct 29, 2025 20:12	3,123	67,286,425	29,485,000	14,234,000	151,429,120
24	Oct 29, 2025 20:12	3,123	67,791,131	28,815,000	14,904,000	151,433,216
25	Oct 29, 2025 20:11	3,123	70,203,653	29,810,000	13,911,000	151,384,064
26	Oct 29, 2025 20:12	3,123	62,915,306	28,815,000	14,904,000	151,396,352
27	Oct 29, 2025 06:35	3,123	65,066,337	28,820,000	14,907,000	151,384,064
28	Oct 29, 2025 20:11	3,123	63,303,930	28,814,000	14,904,000	151,396,352
29	Oct 29, 2025 20:11	3,124	67,770,753	28,826,000	14,910,000	151,392,256
30	Oct 29, 2025 20:10	3,124	71,310,494	28,824,000	14,908,000	151,429,120
31	Oct 29, 2025 20:11	3,125	66,160,326	28,832,000	14,913,000	151,429,120
32	Oct 29, 2025 20:12	3,126	64,250,792	28,842,000	14,918,000	151,392,256
33	Oct 29, 2025 20:11	3,126	65,291,201	28,845,000	14,920,000	151,388,160
34	Oct 29, 2025 20:12	3,126	65,281,068	28,848,000	14,921,000	151,384,064
35	Oct 29, 2025 06:35	3,127	70,170,137	28,858,000	14,926,000	151,392,256
36	Oct 29, 2025 06:35	3,128	69,897,838	29,862,000	13,935,000	151,433,216
37	Oct 29, 2025 20:11	3,129	68,458,090	28,870,000	14,933,000	151,420,928
38	Oct 29, 2025 20:11	3,129	65,295,901	28,870,000	14,933,000	151,384,064
39	Oct 29, 2025 20:11	3,130	64,296,801	28,881,000	14,938,000	151,433,216
40	Oct 29, 2025 20:12	3,130	64,242,862	29,881,000	13,944,000	151,429,120
41	Oct 29, 2025 20:12	3,130	64,866,381	28,883,000	14,939,000	151,384,064
42	Oct 29, 2025 20:11	3,131	65,467,588	29,882,000	13,945,000	151,429,120
43	Oct 29, 2025 20:11	3,132	65,291,543	28,895,000	14,946,000	151,429,120
44	Oct 29, 2025 20:11	3,134	64,172,140	29,912,000	13,958,000	151,429,120
45	Oct 29, 2025 20:11	3,134	64,526,074	28,922,000	14,959,000	151,388,160
46	Oct 29, 2025 20:12	3,135	66,715,587	29,922,000	13,963,000	151,420,928
47	Oct 29, 2025 20:12	3,136	70,298,319	29,933,000	13,969,000	151,420,928
48	Oct 29, 2025 20:12	3,136	70,221,990	29,937,000	13,970,000	151,392,256
49	Oct 29, 2025 20:13	3,136	66,330,339	29,937,000	13,970,000	151,388,160
50	Oct 29, 2025 20:12	3,136	65,531,620	28,935,000	14,966,000	151,375,872
51	Oct 29, 2025 20:11	3,136	65,129,604	29,931,000	13,967,000	151,429,120
52	Oct 29, 2025 20:11	3,136	64,908,077	28,934,000	14,966,000	151,388,160
53	Oct 29, 2025 20:11	3,137	67,449,560	29,946,000	13,974,000	151,388,160
54	Oct 29, 2025 20:11	3,137	65,451,323	28,950,000	14,974,000	151,158,784
55	Oct 29, 2025 06:35	3,138	63,204,238	29,954,000	13,978,000	151,396,352
56	Oct 29, 2025 20:10	3,139	66,827,739	29,963,000	13,983,000	151,384,064
57	Oct 29, 2025 20:12	3,140	62,247,913	29,968,000	13,985,000	151,166,976
58	Oct 29, 2025 20:11	3,140	70,362,801	29,977,000	13,989,000	151,392,256
59	Oct 29, 2025 20:11	3,140	64,688,454	29,976,000	13,988,000	151,392,256
60	Oct 29, 2025 20:10	3,141	64,294,001	29,978,000	13,989,000	151,429,120
61	Oct 29, 2025 20:12	3,143	69,206,836	30,006,000	14,002,000	151,429,120
62	Oct 29, 2025 20:12	3,143	61,798,402	29,000,000	15,000,000	151,392,256
63	Oct 29, 2025 20:11	3,145	65,340,980	30,021,000	14,009,000	151,429,120
64	Oct 29, 2025 20:11	3,146	61,555,258	30,029,000	14,013,000	151,429,120
65	Oct 29, 2025 20:11	3,148	67,301,976	30,052,000	14,024,000	151,429,120
66	Oct 29, 2025 20:11	3,148	66,664,078	30,047,000	14,022,000	151,388,160
67	Oct 29, 2025 20:12	3,148	72,528,373	30,047,000	14,022,000	151,429,120
68	Oct 29, 2025 20:12	3,151	63,117,488	30,075,000	14,035,000	151,429,120
69	Oct 29, 2025 06:35	3,152	67,342,875	30,087,000	14,040,000	151,429,120

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