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 06:58

Josu San Martin

Score: 4,694

Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 7, 2026 07:37	4,652	93,729,946	30,059,000	35,069,000	126,246,912
2	Apr 7, 2026 06:56	4,655	87,768,298	32,080,000	33,083,000	126,246,912
3	Apr 7, 2026 07:29	4,659	90,709,191	35,119,000	30,102,000	126,042,112
4	Apr 7, 2026 07:00	4,660	88,899,749	33,120,000	32,117,000	126,038,016
5	Apr 7, 2026 07:07	4,660	90,192,757	32,117,000	33,121,000	126,046,208
6	Apr 7, 2026 07:24	4,660	92,315,659	35,128,000	30,110,000	126,042,112
7	Apr 7, 2026 06:59	4,661	90,292,877	34,134,000	31,122,000	126,001,152
8	Apr 7, 2026 07:11	4,662	91,404,566	33,138,000	32,134,000	126,246,912
9	Apr 7, 2026 07:16	4,663	95,063,551	31,132,000	34,145,000	126,115,840
10	Apr 7, 2026 07:23	4,664	94,373,029	34,156,000	31,142,000	126,033,920
11	Apr 7, 2026 06:54	4,666	86,399,823	36,176,000	29,142,000	126,242,816
12	Apr 7, 2026 06:53	4,667	90,962,068	35,183,000	30,157,000	126,246,912
13	Apr 7, 2026 07:05	4,671	91,890,555	34,206,000	31,188,000	126,246,912
14	Apr 7, 2026 07:17	4,672	91,964,395	35,218,000	30,187,000	126,038,016
15	Apr 7, 2026 07:25	4,676	100,127,339	34,712,000	30,745,000	126,038,016
16	Apr 7, 2026 07:30	4,676	91,725,209	35,247,000	30,212,000	126,246,912
17	Apr 7, 2026 07:37	4,676	91,137,703	29,757,000	35,709,000	126,091,264
18	Apr 7, 2026 07:10	4,677	92,070,834	32,736,000	32,736,000	126,242,816
19	Apr 7, 2026 07:13	4,677	90,444,244	32,737,000	32,737,000	126,042,112
20	Apr 7, 2026 07:34	4,677	93,582,632	33,729,000	31,745,000	126,246,912
21	Apr 7, 2026 07:36	4,677	93,470,390	34,722,000	30,754,000	126,038,016
22	Apr 7, 2026 07:09	4,678	88,960,943	31,751,000	33,735,000	126,246,912
23	Apr 7, 2026 07:11	4,678	91,140,771	33,737,000	31,752,000	126,078,976
24	Apr 7, 2026 07:01	4,679	94,158,774	35,732,000	29,777,000	126,038,016
25	Apr 7, 2026 07:02	4,679	95,135,948	31,759,000	33,744,000	126,246,912
26	Apr 7, 2026 07:06	4,679	91,213,881	34,739,000	30,769,000	126,255,104
27	Apr 7, 2026 07:32	4,679	92,497,513	34,735,000	30,765,000	126,042,112
28	Apr 7, 2026 07:15	4,680	91,805,266	33,750,000	31,765,000	126,246,912
29	Apr 7, 2026 07:19	4,680	93,043,562	33,754,000	31,768,000	126,246,912
30	Apr 7, 2026 07:01	4,682	92,206,001	33,767,000	31,781,000	126,246,912
31	Apr 7, 2026 07:18	4,683	92,294,832	35,759,000	29,799,000	126,259,200
32	Apr 7, 2026 07:21	4,683	95,218,223	33,776,000	31,789,000	126,038,016
33	Apr 7, 2026 07:08	4,684	93,385,527	36,765,000	28,816,000	126,152,704
34	Apr 7, 2026 07:20	4,684	95,334,827	35,766,000	29,805,000	126,246,912
35	Apr 7, 2026 06:56	4,685	95,000,282	37,762,000	27,825,000	126,042,112
36	Apr 7, 2026 07:00	4,685	89,069,880	34,781,000	30,806,000	126,242,816
37	Apr 7, 2026 06:51	4,686	94,136,543	35,781,000	29,817,000	126,042,112
38	Apr 7, 2026 06:52	4,686	89,395,497	32,801,000	32,801,000	126,025,728
39	Apr 7, 2026 07:23	4,686	97,135,847	35,785,000	29,820,000	126,038,016
40	Apr 7, 2026 07:24	4,686	96,829,952	31,807,000	33,795,000	126,246,912
41	Apr 7, 2026 07:26	4,686	92,703,991	33,796,000	31,808,000	126,246,912
42	Apr 7, 2026 06:50	4,687	93,668,517	33,803,000	31,814,000	126,242,816
43	Apr 7, 2026 07:05	4,687	89,330,914	33,802,000	31,813,000	126,042,112
44	Apr 7, 2026 06:52	4,688	89,709,872	35,797,000	29,830,000	126,005,248
45	Apr 7, 2026 07:21	4,688	92,220,042	37,789,000	27,844,000	126,038,016
46	Apr 7, 2026 07:30	4,688	95,081,723	33,810,000	31,822,000	126,017,536
47	Apr 7, 2026 07:05	4,690	91,835,087	34,816,000	30,837,000	126,025,728
48	Apr 7, 2026 07:13	4,690	87,401,292	35,816,000	29,846,000	126,255,104
49	Apr 7, 2026 07:16	4,690	90,462,026	33,827,000	31,837,000	126,255,104
50	Apr 7, 2026 07:32	4,690	96,051,858	34,821,000	30,841,000	126,038,016
51	Apr 7, 2026 07:33	4,690	90,156,883	36,812,000	28,852,000	126,242,816
52	Apr 7, 2026 06:50	4,691	98,346,377	33,830,000	31,840,000	126,038,016
53	Apr 7, 2026 07:03	4,691	91,530,571	34,827,000	30,846,000	126,255,104
54	Apr 7, 2026 07:17	4,691	97,989,371	33,831,000	31,841,000	126,013,440
55	Apr 7, 2026 07:28	4,692	94,923,105	35,827,000	29,856,000	126,042,112
56	Apr 7, 2026 06:56	4,693	94,947,491	33,843,000	31,852,000	126,189,568
57	Apr 7, 2026 06:58	4,693	90,996,034	33,843,000	31,853,000	126,242,816
58	Apr 7, 2026 07:03	4,693	91,138,258	34,842,000	30,860,000	126,033,920
59	Apr 7, 2026 07:19	4,693	90,676,940	34,845,000	30,862,000	126,038,016
60	Apr 7, 2026 07:37	4,693	90,878,508	33,846,000	31,855,000	126,038,016
61	Apr 7, 2026 06:57	4,694	88,979,154	33,855,000	31,864,000	126,246,912
62	Apr 7, 2026 07:10	4,694	93,416,335	34,847,000	30,864,000	126,042,112
63	Apr 7, 2026 07:18	4,694	89,017,230	35,848,000	29,873,000	126,038,016
64	Apr 7, 2026 07:25	4,694	91,525,788	32,860,000	32,860,000	126,042,112
65	Apr 7, 2026 07:33	4,694	87,855,419	33,857,000	31,865,000	126,083,072
66	Apr 7, 2026 06:53	4,695	92,212,181	32,862,000	32,862,000	126,246,912
67	Apr 7, 2026 07:02	4,695	92,820,247	33,858,000	31,866,000	126,038,016
68	Apr 7, 2026 07:21	4,695	91,170,728	34,858,000	30,874,000	126,242,816
69	Apr 7, 2026 07:25	4,695	87,339,694	33,858,000	31,866,000	126,246,912
70	Apr 7, 2026 07:28	4,695	91,632,235	32,863,000	32,863,000	126,246,912
71	Apr 7, 2026 07:29	4,696	94,567,664	32,873,000	32,873,000	126,042,112
72	Apr 7, 2026 07:13	4,697	89,907,623	34,873,000	30,887,000	126,246,912
73	Apr 7, 2026 07:14	4,697	91,684,200	34,871,000	30,886,000	126,242,816
74	Apr 7, 2026 07:30	4,697	90,515,619	32,882,000	32,882,000	126,246,912
75	Apr 7, 2026 06:59	4,698	91,783,663	34,881,000	30,894,000	126,038,016
76	Apr 7, 2026 07:06	4,698	91,880,929	30,891,000	34,877,000	126,246,912
77	Apr 7, 2026 07:06	4,698	90,600,670	36,873,000	28,900,000	126,038,016
78	Apr 7, 2026 07:14	4,698	90,885,567	34,877,000	30,891,000	126,033,920
79	Apr 7, 2026 06:57	4,699	88,347,028	30,898,000	34,885,000	126,038,016
80	Apr 7, 2026 07:07	4,699	85,734,487	36,878,000	28,904,000	126,033,920
81	Apr 7, 2026 07:23	4,699	88,874,358	34,884,000	30,897,000	126,259,200
82	Apr 7, 2026 06:59	4,700	92,735,009	33,896,000	31,902,000	126,058,496
83	Apr 7, 2026 07:15	4,700	90,428,960	35,893,000	29,911,000	126,242,816
84	Apr 7, 2026 07:35	4,700	85,610,894	36,886,000	28,910,000	126,259,200
85	Apr 7, 2026 06:53	4,701	87,616,700	34,899,000	30,910,000	126,033,920
86	Apr 7, 2026 07:19	4,701	95,254,468	34,903,000	30,914,000	126,046,208
87	Apr 7, 2026 06:54	4,703	93,840,904	32,923,000	32,923,000	126,046,208
88	Apr 7, 2026 07:02	4,704	88,916,520	34,925,000	30,933,000	126,038,016
89	Apr 7, 2026 07:20	4,704	87,757,440	37,913,000	27,936,000	126,070,784
90	Apr 7, 2026 07:01	4,705	90,520,831	35,926,000	29,939,000	126,033,920
91	Apr 7, 2026 07:26	4,705	92,081,775	34,934,000	30,941,000	126,246,912
92	Apr 7, 2026 06:57	4,706	92,864,390	34,936,000	30,943,000	126,242,816
93	Apr 7, 2026 07:26	4,706	87,361,458	34,940,000	30,947,000	126,038,016
94	Apr 7, 2026 07:27	4,706	88,630,103	35,936,000	29,947,000	126,083,072
95	Apr 7, 2026 06:51	4,707	93,404,196	37,940,000	27,956,000	126,042,112
96	Apr 7, 2026 06:52	4,707	88,764,257	31,953,000	33,951,000	126,033,920
97	Apr 7, 2026 07:35	4,708	94,875,956	33,952,000	31,955,000	126,042,112
98	Apr 7, 2026 07:36	4,710	88,901,269	35,970,000	29,975,000	126,038,016
99	Apr 7, 2026 07:34	4,711	89,474,381	35,975,000	29,979,000	126,033,920
100	Apr 7, 2026 06:51	4,712	90,902,975	35,982,000	29,985,000	126,033,920
101	Apr 7, 2026 07:16	4,712	88,419,208	32,983,000	32,983,000	126,246,912
102	Apr 7, 2026 06:54	4,713	91,028,108	36,991,000	28,993,000	126,246,912
103	Apr 7, 2026 07:09	4,713	89,080,520	36,987,000	28,990,000	126,246,912
104	Apr 7, 2026 07:29	4,714	89,871,409	37,000,000	29,000,000	126,070,784
105	Apr 7, 2026 07:18	4,715	92,101,636	35,003,000	31,003,000	126,246,912
106	Apr 7, 2026 07:08	4,716	90,788,081	38,017,000	28,013,000	126,038,016
107	Apr 7, 2026 07:36	4,716	92,579,729	35,014,000	31,012,000	126,246,912
108	Apr 7, 2026 07:17	4,717	86,373,785	37,022,000	29,017,000	126,246,912
109	Apr 7, 2026 07:24	4,717	87,897,515	35,020,000	31,018,000	126,246,912
110	Apr 7, 2026 07:35	4,717	94,314,668	35,018,000	31,016,000	126,038,016
111	Apr 7, 2026 07:03	4,718	87,707,918	36,027,000	30,022,000	126,255,104
112	Apr 7, 2026 07:32	4,720	93,717,931	36,045,000	30,037,000	126,042,112
113	Apr 7, 2026 07:10	4,722	96,387,644	40,069,000	26,045,000	126,242,816
114	Apr 7, 2026 07:14	4,722	91,922,247	37,060,000	29,047,000	126,033,920
115	Apr 7, 2026 07:33	4,727	89,737,567	37,097,000	29,076,000	126,033,920
116	Apr 7, 2026 07:34	4,727	90,893,985	37,103,000	29,080,000	126,255,104
117	Apr 7, 2026 07:09	4,728	88,517,927	35,104,000	31,092,000	126,038,016
118	Apr 7, 2026 07:11	4,729	90,630,799	38,117,000	28,086,000	126,255,104
119	Apr 7, 2026 07:20	4,730	92,845,198	35,116,000	31,103,000	126,259,200
120	Apr 7, 2026 07:27	4,730	89,454,198	35,115,000	31,102,000	126,038,016
121	Apr 7, 2026 06:50	4,731	93,801,336	37,135,000	29,105,000	126,042,112
122	Apr 7, 2026 07:00	4,733	89,624,847	35,137,000	31,121,000	126,242,816
123	Apr 7, 2026 07:08	4,736	92,923,022	38,177,000	28,131,000	126,042,112
124	Apr 7, 2026 07:28	4,741	94,829,172	37,211,000	29,165,000	126,074,880
125	Apr 7, 2026 06:58	4,747	88,681,787	35,710,000	30,750,000	126,242,816
126	Apr 7, 2026 07:15	4,747	95,908,298	37,254,000	29,199,000	126,038,016
127	Apr 7, 2026 07:27	4,757	91,767,140	36,779,000	29,820,000	126,042,112
128	Apr 7, 2026 06:58	4,769	90,436,777	35,876,000	30,894,000	126,255,104
129	Apr 7, 2026 07:07	4,772	89,651,325	32,902,000	33,899,000	126,246,912

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