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 listMar 20, 2026 09:15

Dominique Garmier

Score: 4,371

Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 09:59	4,323	88,881,575	31,752,000	28,776,000	151,171,072
2	Mar 20, 2026 02:55	4,331	90,132,069	33,794,000	26,837,000	151,298,048
3	Mar 20, 2026 02:55	4,334	91,906,446	28,845,000	31,829,000	151,171,072
4	Mar 20, 2026 10:24	4,337	91,470,986	33,840,000	26,872,000	151,306,240
5	Mar 20, 2026 09:07	4,338	86,640,924	34,847,000	25,886,000	151,171,072
6	Mar 20, 2026 09:59	4,343	88,168,400	33,893,000	26,915,000	151,171,072
7	Mar 20, 2026 08:48	4,344	85,795,740	40,875,000	19,939,000	151,293,952
8	Mar 20, 2026 08:33	4,344	90,726,859	29,912,000	30,909,000	151,420,928
9	Mar 20, 2026 09:20	4,345	91,444,905	33,905,000	26,924,000	151,289,856
10	Mar 20, 2026 02:55	4,345	87,662,709	36,894,000	23,931,000	151,306,240
11	Mar 20, 2026 08:12	4,346	85,543,451	33,914,000	26,931,000	151,302,144
12	Mar 20, 2026 08:54	4,348	81,809,235	30,935,000	29,937,000	151,298,048
13	Mar 20, 2026 08:12	4,349	86,716,634	33,939,000	26,951,000	151,293,952
14	Mar 20, 2026 10:39	4,350	84,296,340	32,944,000	27,953,000	151,298,048
15	Mar 20, 2026 09:03	4,350	89,243,811	35,939,000	24,958,000	151,171,072
16	Mar 20, 2026 07:56	4,351	83,236,792	33,948,000	26,959,000	151,302,144
17	Mar 20, 2026 03:04	4,351	84,214,660	31,952,000	28,956,000	151,171,072
18	Mar 20, 2026 02:55	4,352	86,238,816	33,959,000	26,967,000	151,171,072
19	Mar 20, 2026 02:55	4,354	84,165,455	36,977,000	23,985,000	151,298,048
20	Mar 20, 2026 09:03	4,354	86,781,522	38,970,000	21,983,000	151,171,072
21	Mar 20, 2026 10:15	4,355	85,473,165	31,982,000	28,984,000	151,298,048
22	Mar 20, 2026 09:03	4,355	85,502,200	28,985,000	31,984,000	151,171,072
23	Mar 20, 2026 09:07	4,356	86,637,797	37,990,000	22,994,000	151,293,952
24	Mar 20, 2026 09:59	4,356	86,339,579	33,987,000	26,990,000	151,171,072
25	Mar 20, 2026 07:56	4,356	84,890,541	30,991,000	29,991,000	151,302,144
26	Mar 20, 2026 09:15	4,357	86,606,121	36,002,000	25,001,000	151,171,072
27	Mar 20, 2026 08:12	4,359	86,665,925	32,015,000	29,014,000	151,171,072
28	Mar 20, 2026 10:15	4,359	87,677,690	30,013,000	31,013,000	151,302,144
29	Mar 20, 2026 09:59	4,359	88,665,373	31,015,000	30,014,000	151,298,048
30	Mar 20, 2026 07:56	4,361	81,224,850	32,031,000	29,028,000	151,420,928
31	Mar 20, 2026 10:24	4,362	83,082,985	33,034,000	28,029,000	151,171,072
32	Mar 20, 2026 09:59	4,363	83,974,829	33,041,000	28,034,000	151,171,072
33	Mar 20, 2026 03:04	4,364	85,872,215	37,060,000	24,039,000	151,293,952
34	Mar 20, 2026 09:03	4,366	85,961,895	32,063,000	29,057,000	151,171,072
35	Mar 20, 2026 09:59	4,366	87,175,322	31,063,000	30,061,000	151,306,240
36	Mar 20, 2026 08:12	4,368	82,664,404	35,090,000	26,067,000	151,171,072
37	Mar 20, 2026 08:12	4,368	84,175,293	34,081,000	27,064,000	151,302,144
38	Mar 20, 2026 03:11	4,368	88,944,105	34,081,000	27,064,000	151,171,072
39	Mar 20, 2026 09:20	4,369	86,799,870	37,104,000	24,067,000	151,285,760
40	Mar 20, 2026 03:11	4,369	87,808,730	35,096,000	26,071,000	151,302,144
41	Mar 20, 2026 09:03	4,371	89,819,781	31,096,000	30,093,000	151,298,048
42	Mar 20, 2026 09:39	4,373	87,198,490	33,118,000	28,100,000	151,171,072
43	Mar 20, 2026 03:11	4,373	85,834,988	33,119,000	28,101,000	151,171,072
44	Mar 20, 2026 09:59	4,375	86,442,565	25,105,000	36,151,000	151,171,072
45	Mar 20, 2026 02:55	4,376	83,806,681	32,135,000	29,122,000	151,171,072
46	Mar 20, 2026 08:24	4,377	92,012,204	31,141,000	30,137,000	151,171,072
47	Mar 20, 2026 10:24	4,378	89,497,145	34,600,000	26,691,000	151,306,240
48	Mar 20, 2026 08:54	4,379	85,978,215	29,144,000	32,159,000	151,171,072
49	Mar 20, 2026 08:12	4,380	88,613,513	34,177,000	27,141,000	151,306,240
50	Mar 20, 2026 09:07	4,381	92,699,064	32,643,000	28,686,000	151,171,072
51	Mar 20, 2026 08:48	4,382	81,129,214	30,172,000	31,178,000	151,412,736
52	Mar 20, 2026 09:39	4,383	81,400,031	33,197,000	28,167,000	151,171,072
53	Mar 20, 2026 08:54	4,384	87,439,672	30,187,000	31,193,000	151,298,048
54	Mar 20, 2026 08:24	4,384	87,350,799	37,231,000	24,150,000	151,171,072
55	Mar 20, 2026 02:55	4,385	88,808,385	27,727,000	33,668,000	151,171,072
56	Mar 20, 2026 09:03	4,386	92,145,105	30,705,000	30,705,000	151,298,048
57	Mar 20, 2026 09:03	4,387	90,043,973	29,200,000	32,221,000	151,298,048
58	Mar 20, 2026 09:59	4,389	88,991,651	38,279,000	23,168,000	151,171,072
59	Mar 20, 2026 08:12	4,390	91,983,496	32,242,000	29,219,000	151,171,072
60	Mar 20, 2026 08:33	4,393	91,173,483	32,734,000	28,766,000	151,298,048
61	Mar 20, 2026 08:48	4,394	91,589,699	30,758,000	30,758,000	151,171,072
62	Mar 20, 2026 10:39	4,395	94,569,226	36,723,000	24,813,000	151,171,072
63	Mar 20, 2026 10:15	4,396	87,918,983	30,769,000	30,769,000	151,293,952
64	Mar 20, 2026 09:39	4,396	89,339,546	30,773,000	30,773,000	151,306,240
65	Mar 20, 2026 08:02	4,397	91,226,249	30,782,000	30,782,000	151,298,048
66	Mar 20, 2026 08:24	4,398	88,059,669	33,767,000	27,808,000	151,171,072
67	Mar 20, 2026 02:55	4,401	86,657,170	31,803,000	29,815,000	151,298,048
68	Mar 20, 2026 09:59	4,401	92,165,464	32,793,000	28,818,000	151,298,048
69	Mar 20, 2026 08:02	4,405	87,053,812	25,864,000	35,812,000	151,298,048
70	Mar 20, 2026 08:12	4,406	89,741,119	36,812,000	24,873,000	151,293,952
71	Mar 20, 2026 10:39	4,407	91,180,933	33,838,000	27,866,000	151,171,072
72	Mar 20, 2026 09:20	4,408	86,607,547	33,839,000	27,867,000	151,285,760
73	Mar 20, 2026 09:15	4,408	88,792,775	38,819,000	22,893,000	151,171,072
74	Mar 20, 2026 08:12	4,409	88,539,188	30,864,000	30,864,000	151,293,952
75	Mar 20, 2026 08:33	4,411	87,892,652	31,876,000	29,884,000	151,171,072
76	Mar 20, 2026 09:03	4,412	91,129,080	32,878,000	28,892,000	151,298,048
77	Mar 20, 2026 09:15	4,414	89,095,366	34,884,000	26,910,000	151,171,072
78	Mar 20, 2026 03:04	4,415	88,415,696	31,900,000	29,906,000	151,306,240
79	Mar 20, 2026 09:03	4,420	86,296,077	32,934,000	28,942,000	151,298,048
80	Mar 20, 2026 02:55	4,575	87,752,075	38,026,000	26,017,000	151,293,952
81	Mar 20, 2026 08:02	4,889	93,143,184	40,669,000	27,773,000	151,298,048

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