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	1:20.1.2-0ubuntu1~24.04.2	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.
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	3.0.13-0ubuntu3.9	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 listApr 7, 2026 06:59

Josu San Martin

Score: 4,700

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 7, 2026 07:11	4,648	90,177,824	33,035,000	32,034,000	126,042,112
2	Apr 7, 2026 07:22	4,659	92,234,012	36,128,000	29,103,000	126,042,112
3	Apr 7, 2026 07:06	4,662	89,912,538	32,130,000	33,134,000	126,038,016
4	Apr 7, 2026 07:02	4,663	93,823,768	32,141,000	33,145,000	126,107,648
5	Apr 7, 2026 07:10	4,664	88,333,654	34,154,000	31,141,000	126,242,816
6	Apr 7, 2026 07:02	4,665	95,720,844	35,164,000	30,140,000	126,083,072
7	Apr 7, 2026 07:10	4,665	92,777,983	31,667,000	33,647,000	126,087,168
8	Apr 7, 2026 07:05	4,666	87,970,693	32,157,000	33,162,000	126,038,016
9	Apr 7, 2026 07:23	4,666	91,437,006	35,175,000	30,150,000	126,255,104
10	Apr 7, 2026 07:29	4,668	96,846,082	35,189,000	30,162,000	126,246,912
11	Apr 7, 2026 07:15	4,670	91,773,674	34,198,000	31,181,000	126,033,920
12	Apr 7, 2026 07:26	4,670	89,767,179	32,188,000	33,194,000	126,099,456
13	Apr 7, 2026 06:58	4,671	87,185,071	32,697,000	32,697,000	126,042,112
14	Apr 7, 2026 07:03	4,671	92,060,000	36,220,000	29,177,000	126,255,104
15	Apr 7, 2026 07:05	4,674	93,172,176	33,222,000	32,215,000	126,246,912
16	Apr 7, 2026 07:19	4,676	89,699,904	34,243,000	31,221,000	126,242,816
17	Apr 7, 2026 07:00	4,679	93,442,725	33,748,000	31,763,000	126,042,112
18	Apr 7, 2026 07:04	4,679	96,960,576	32,751,000	32,751,000	126,038,016
19	Apr 7, 2026 07:17	4,679	94,980,914	33,744,000	31,759,000	126,242,816
20	Apr 7, 2026 07:08	4,681	93,212,404	33,759,000	31,773,000	126,038,016
21	Apr 7, 2026 07:21	4,681	95,053,235	35,742,000	29,785,000	126,038,016
22	Apr 7, 2026 07:25	4,681	93,598,075	36,736,000	28,793,000	126,259,200
23	Apr 7, 2026 07:28	4,681	93,196,993	31,776,000	33,762,000	126,038,016
24	Apr 7, 2026 07:15	4,682	99,879,056	34,763,000	30,790,000	126,038,016
25	Apr 7, 2026 07:00	4,684	93,596,300	32,785,000	32,785,000	126,038,016
26	Apr 7, 2026 07:28	4,684	91,525,809	33,781,000	31,794,000	126,242,816
27	Apr 7, 2026 07:07	4,685	94,090,934	36,768,000	28,818,000	126,246,912
28	Apr 7, 2026 07:17	4,685	91,800,677	31,804,000	33,792,000	126,033,920
29	Apr 7, 2026 07:24	4,685	90,054,491	36,767,000	28,817,000	126,042,112
30	Apr 7, 2026 07:12	4,687	88,857,275	35,793,000	29,828,000	126,025,728
31	Apr 7, 2026 07:38	4,687	91,478,315	34,794,000	30,817,000	126,038,016
32	Apr 7, 2026 07:38	4,687	94,532,109	32,812,000	32,812,000	126,042,112
33	Apr 7, 2026 07:21	4,688	93,910,832	35,798,000	29,832,000	126,111,744
34	Apr 7, 2026 07:25	4,688	88,887,047	35,798,000	29,832,000	126,042,112
35	Apr 7, 2026 07:33	4,688	93,335,507	30,829,000	34,807,000	126,025,728
36	Apr 7, 2026 07:14	4,690	93,032,246	35,818,000	29,848,000	126,038,016
37	Apr 7, 2026 07:34	4,690	88,915,838	33,822,000	31,832,000	126,033,920
38	Apr 7, 2026 06:58	4,692	89,389,892	39,811,000	25,877,000	126,255,104
39	Apr 7, 2026 07:30	4,692	89,973,908	34,832,000	30,851,000	126,255,104
40	Apr 7, 2026 07:03	4,694	90,176,108	35,842,000	29,869,000	126,038,016
41	Apr 7, 2026 07:17	4,694	94,591,690	32,855,000	32,855,000	126,259,200
42	Apr 7, 2026 07:32	4,694	91,130,479	33,850,000	31,859,000	126,255,104
43	Apr 7, 2026 07:02	4,695	91,237,011	33,864,000	31,872,000	126,042,112
44	Apr 7, 2026 07:19	4,695	91,023,124	34,855,000	30,872,000	126,042,112
45	Apr 7, 2026 07:34	4,695	93,532,757	37,842,000	27,884,000	126,038,016
46	Apr 7, 2026 07:34	4,696	95,786,063	35,861,000	29,884,000	126,246,912
47	Apr 7, 2026 07:16	4,697	94,684,964	33,873,000	31,880,000	126,238,720
48	Apr 7, 2026 07:15	4,698	94,266,456	34,877,000	30,891,000	126,038,016
49	Apr 7, 2026 07:20	4,699	89,367,269	35,885,000	29,904,000	126,038,016
50	Apr 7, 2026 07:00	4,700	92,955,108	31,901,000	33,895,000	126,042,112
51	Apr 7, 2026 07:12	4,700	86,367,630	35,894,000	29,912,000	126,038,016
52	Apr 7, 2026 07:22	4,700	89,354,429	36,890,000	28,913,000	126,025,728
53	Apr 7, 2026 07:24	4,700	88,338,310	34,895,000	30,907,000	126,255,104
54	Apr 7, 2026 07:29	4,700	93,823,294	36,885,000	28,910,000	126,042,112
55	Apr 7, 2026 07:30	4,700	87,586,537	34,893,000	30,905,000	126,242,816
56	Apr 7, 2026 06:59	4,701	90,974,153	34,900,000	30,911,000	126,038,016
57	Apr 7, 2026 07:07	4,703	88,796,928	38,904,000	26,934,000	126,259,200
58	Apr 7, 2026 07:37	4,703	88,654,640	33,921,000	31,926,000	126,099,456
59	Apr 7, 2026 07:22	4,704	89,750,378	37,918,000	27,940,000	126,033,920
60	Apr 7, 2026 07:23	4,705	92,487,856	35,927,000	29,939,000	126,246,912
61	Apr 7, 2026 07:23	4,706	87,614,157	36,938,000	28,951,000	126,038,016
62	Apr 7, 2026 07:14	4,707	95,833,236	34,948,000	30,954,000	126,042,112
63	Apr 7, 2026 07:32	4,707	94,383,330	37,945,000	27,959,000	126,042,112
64	Apr 7, 2026 07:13	4,708	88,812,697	35,954,000	29,962,000	126,242,816
65	Apr 7, 2026 07:26	4,708	90,202,032	33,957,000	31,959,000	126,038,016
66	Apr 7, 2026 07:33	4,708	90,401,767	37,953,000	27,965,000	126,255,104
67	Apr 7, 2026 07:16	4,709	91,428,322	34,958,000	30,962,000	126,038,016
68	Apr 7, 2026 07:29	4,709	94,374,125	36,961,000	28,970,000	126,042,112
69	Apr 7, 2026 07:35	4,710	90,967,659	33,971,000	31,973,000	126,038,016
70	Apr 7, 2026 07:04	4,711	90,228,207	36,973,000	28,979,000	126,234,624
71	Apr 7, 2026 07:31	4,712	90,991,216	38,980,000	26,986,000	126,038,016
72	Apr 7, 2026 07:35	4,712	89,155,888	32,984,000	32,984,000	126,246,912
73	Apr 7, 2026 07:05	4,716	93,416,919	40,015,000	26,010,000	126,242,816
74	Apr 7, 2026 07:08	4,716	92,401,240	36,013,000	30,010,000	126,038,016
75	Apr 7, 2026 07:06	4,717	94,607,878	36,017,000	30,014,000	126,242,816
76	Apr 7, 2026 07:11	4,717	87,193,905	37,021,000	29,016,000	126,246,912
77	Apr 7, 2026 07:28	4,717	90,091,771	33,016,000	33,016,000	126,038,016
78	Apr 7, 2026 07:31	4,717	89,047,284	35,018,000	31,016,000	126,025,728
79	Apr 7, 2026 07:33	4,717	89,959,763	35,022,000	31,020,000	126,033,920
80	Apr 7, 2026 07:37	4,719	90,539,273	40,044,000	26,028,000	126,255,104
81	Apr 7, 2026 07:11	4,720	96,658,087	36,047,000	30,039,000	126,001,152
82	Apr 7, 2026 07:21	4,722	90,637,285	37,059,000	29,046,000	126,038,016
83	Apr 7, 2026 07:25	4,722	91,920,309	35,058,000	31,051,000	126,038,016
84	Apr 7, 2026 07:14	4,723	85,469,959	35,064,000	31,056,000	126,242,816
85	Apr 7, 2026 07:24	4,727	90,610,677	38,106,000	28,078,000	126,038,016
86	Apr 7, 2026 07:20	4,728	94,960,732	35,104,000	31,092,000	126,042,112
87	Apr 7, 2026 07:31	4,729	90,945,755	36,112,000	30,093,000	126,246,912
88	Apr 7, 2026 07:19	4,731	91,757,156	39,136,000	27,094,000	126,038,016
89	Apr 7, 2026 07:13	4,736	98,214,829	34,158,000	32,149,000	126,025,728
90	Apr 7, 2026 07:35	4,740	89,126,892	36,197,000	30,164,000	126,038,016
91	Apr 7, 2026 06:59	4,745	94,473,259	38,668,000	27,762,000	126,033,920
92	Apr 7, 2026 07:38	4,751	93,762,507	35,742,000	30,778,000	126,078,976
93	Apr 7, 2026 07:26	4,752	88,033,189	33,760,000	32,767,000	126,255,104
94	Apr 7, 2026 07:30	4,752	92,600,166	36,739,000	29,789,000	126,246,912
95	Apr 7, 2026 06:58	4,776	98,039,204	36,921,000	29,936,000	126,242,816
96	Apr 7, 2026 07:08	4,781	92,036,650	36,964,000	29,971,000	126,255,104
97	Apr 7, 2026 07:12	4,781	103,080,456	35,963,000	30,968,000	126,046,208
98	Apr 7, 2026 07:37	4,804	94,214,351	38,147,000	29,112,000	126,042,112
99	Apr 7, 2026 07:13	4,845	93,840,471	34,912,000	32,917,000	126,255,104
100	Apr 7, 2026 07:16	4,845	95,574,060	36,908,000	30,923,000	126,242,816
101	Apr 7, 2026 07:06	4,853	95,972,641	37,968,000	29,975,000	126,246,912
102	Apr 7, 2026 06:59	4,977	102,412,799	38,819,000	30,856,000	126,038,016
103	Apr 7, 2026 07:10	4,996	91,921,343	42,963,000	26,977,000	126,025,728
104	Apr 7, 2026 07:32	5,062	98,665,541	34,934,000	35,932,000	126,246,912
105	Apr 7, 2026 07:03	5,097	103,098,541	39,643,000	31,715,000	126,021,632
106	Apr 7, 2026 07:04	5,175	105,642,174	38,703,000	33,741,000	126,042,112
107	Apr 7, 2026 07:20	5,179	98,805,844	44,313,000	28,199,000	126,255,104
108	Apr 7, 2026 07:07	5,566	110,052,773	40,960,000	36,964,000	126,025,728

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