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 11, 2026 06:40

Josu San Martin

Score: 3,065

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 11, 2026 06:41	3,039	70,298,637	28,695,000	13,853,000	126,267,392
2	Apr 11, 2026 06:43	3,041	66,537,494	28,712,000	13,861,000	126,177,280
3	Apr 11, 2026 06:43	3,042	68,493,952	29,710,000	12,874,000	126,005,248
4	Apr 11, 2026 06:41	3,044	71,529,491	28,742,000	13,875,000	126,005,248
5	Apr 11, 2026 06:36	3,045	66,711,869	28,747,000	13,878,000	126,173,184
6	Apr 11, 2026 06:44	3,045	70,859,170	27,763,000	14,873,000	126,267,392
7	Apr 11, 2026 06:36	3,046	65,503,675	29,751,000	12,892,000	126,169,088
8	Apr 11, 2026 06:36	3,047	64,409,064	29,764,000	12,897,000	126,005,248
9	Apr 11, 2026 06:40	3,047	65,866,132	30,751,000	11,903,000	126,267,392
10	Apr 11, 2026 06:44	3,048	62,898,666	30,768,000	11,910,000	126,267,392
11	Apr 11, 2026 06:36	3,050	67,001,683	30,785,000	11,916,000	126,267,392
12	Apr 11, 2026 06:37	3,050	74,189,424	28,802,000	13,904,000	126,267,392
13	Apr 11, 2026 06:43	3,050	65,435,181	28,798,000	13,902,000	126,267,392
14	Apr 11, 2026 06:43	3,051	64,123,431	30,789,000	11,918,000	126,267,392
15	Apr 11, 2026 06:43	3,051	64,654,411	28,803,000	13,904,000	126,173,184
16	Apr 11, 2026 06:43	3,052	63,006,872	31,800,000	10,931,000	126,267,392
17	Apr 11, 2026 06:43	3,053	69,144,072	30,809,000	11,926,000	126,181,376
18	Apr 11, 2026 06:43	3,053	64,716,693	30,810,000	11,926,000	126,177,280
19	Apr 11, 2026 06:43	3,053	64,652,976	28,822,000	13,914,000	126,164,992
20	Apr 11, 2026 06:47	3,053	66,044,640	30,809,000	11,926,000	126,267,392
21	Apr 11, 2026 06:36	3,054	67,270,775	30,824,000	11,932,000	126,177,280
22	Apr 11, 2026 06:41	3,054	67,424,845	29,831,000	12,926,000	126,267,392
23	Apr 11, 2026 06:41	3,055	74,030,059	29,844,000	12,932,000	126,173,184
24	Apr 11, 2026 06:43	3,055	68,822,605	30,833,000	11,935,000	126,267,392
25	Apr 11, 2026 06:44	3,055	66,557,124	29,836,000	12,929,000	126,177,280
26	Apr 11, 2026 06:41	3,056	66,074,885	29,848,000	12,934,000	126,177,280
27	Apr 11, 2026 06:47	3,056	66,195,329	29,845,000	12,932,000	126,173,184
28	Apr 11, 2026 06:36	3,057	66,537,681	29,860,000	12,939,000	126,173,184
29	Apr 11, 2026 06:43	3,057	68,462,194	29,854,000	12,937,000	126,177,280
30	Apr 11, 2026 06:43	3,057	65,986,887	30,859,000	11,945,000	126,267,392
31	Apr 11, 2026 06:43	3,057	64,282,631	30,856,000	11,944,000	126,173,184
32	Apr 11, 2026 06:36	3,058	64,599,435	30,868,000	11,949,000	126,169,088
33	Apr 11, 2026 06:43	3,058	64,614,825	29,866,000	12,942,000	126,173,184
34	Apr 11, 2026 06:43	3,058	65,956,251	29,866,000	12,941,000	126,164,992
35	Apr 11, 2026 06:43	3,058	67,420,762	31,859,000	10,951,000	126,271,488
36	Apr 11, 2026 06:41	3,059	66,387,149	30,874,000	11,951,000	126,267,392
37	Apr 11, 2026 06:43	3,059	68,567,277	30,871,000	11,950,000	126,271,488
38	Apr 11, 2026 06:36	3,060	64,790,288	30,887,000	11,956,000	126,173,184
39	Apr 11, 2026 06:41	3,060	75,074,652	30,889,000	11,957,000	126,267,392
40	Apr 11, 2026 06:41	3,060	60,752,622	30,888,000	11,957,000	126,263,296
41	Apr 11, 2026 06:43	3,060	63,156,990	30,882,000	11,954,000	126,267,392
42	Apr 11, 2026 06:43	3,060	62,413,758	30,880,000	11,953,000	126,267,392
43	Apr 11, 2026 06:41	3,061	64,364,959	30,899,000	11,960,000	126,181,376
44	Apr 11, 2026 06:43	3,061	62,426,426	29,894,000	12,954,000	126,267,392
45	Apr 11, 2026 06:43	3,061	66,058,389	30,899,000	11,961,000	126,267,392
46	Apr 11, 2026 06:44	3,061	63,698,201	30,897,000	11,960,000	126,267,392
47	Apr 11, 2026 06:47	3,062	65,882,460	30,909,000	11,964,000	126,169,088
48	Apr 11, 2026 06:43	3,064	65,900,853	30,921,000	11,969,000	126,267,392
49	Apr 11, 2026 06:43	3,064	65,419,594	30,929,000	11,972,000	126,169,088
50	Apr 11, 2026 06:36	3,065	65,543,621	30,934,000	11,974,000	126,169,088
51	Apr 11, 2026 06:37	3,065	66,761,381	29,934,000	12,971,000	126,169,088
52	Apr 11, 2026 06:43	3,065	64,693,528	31,934,000	10,977,000	126,267,392
53	Apr 11, 2026 06:44	3,065	62,214,867	29,937,000	12,972,000	126,173,184
54	Apr 11, 2026 06:40	3,066	61,151,984	30,945,000	11,978,000	126,164,992
55	Apr 11, 2026 06:44	3,066	70,563,431	27,949,000	14,972,000	126,181,376
56	Apr 11, 2026 06:41	3,067	71,723,379	30,955,000	11,982,000	126,005,248
57	Apr 11, 2026 06:43	3,068	62,563,138	29,967,000	12,985,000	126,267,392
58	Apr 11, 2026 06:43	3,068	63,980,705	28,967,000	13,984,000	126,177,280
59	Apr 11, 2026 06:43	3,068	70,383,602	31,960,000	10,986,000	126,173,184
60	Apr 11, 2026 06:43	3,071	69,879,964	29,994,000	12,997,000	126,173,184
61	Apr 11, 2026 06:37	3,072	68,132,973	29,004,000	14,002,000	126,164,992
62	Apr 11, 2026 06:43	3,072	66,815,751	29,005,000	14,002,000	126,169,088
63	Apr 11, 2026 06:44	3,072	69,350,313	30,006,000	13,002,000	126,267,392
64	Apr 11, 2026 06:40	3,073	68,170,191	29,015,000	14,007,000	126,177,280
65	Apr 11, 2026 06:43	3,073	66,199,206	31,019,000	12,007,000	126,267,392
66	Apr 11, 2026 06:43	3,074	64,952,882	30,027,000	13,011,000	126,177,280
67	Apr 11, 2026 06:36	3,075	63,840,739	30,039,000	13,017,000	126,169,088
68	Apr 11, 2026 06:37	3,075	60,337,964	30,031,000	13,013,000	126,181,376
69	Apr 11, 2026 06:41	3,075	70,719,983	31,034,000	12,013,000	126,271,488
70	Apr 11, 2026 06:43	3,075	67,016,932	30,037,000	13,016,000	126,271,488
71	Apr 11, 2026 06:43	3,076	63,473,295	30,048,000	13,021,000	126,177,280
72	Apr 11, 2026 06:44	3,076	65,141,588	30,046,000	13,019,000	126,005,248
73	Apr 11, 2026 06:47	3,078	66,997,199	29,058,000	14,028,000	126,177,280
74	Apr 11, 2026 06:40	3,079	67,217,175	29,074,000	14,036,000	126,009,344
75	Apr 11, 2026 06:43	3,079	72,224,449	30,074,000	13,032,000	126,267,392
76	Apr 11, 2026 06:43	3,079	70,361,957	30,078,000	13,034,000	126,267,392
77	Apr 11, 2026 06:40	3,080	64,041,144	31,087,000	12,034,000	126,267,392
78	Apr 11, 2026 06:41	3,080	60,798,242	31,090,000	12,035,000	126,267,392
79	Apr 11, 2026 06:43	3,080	64,487,137	31,087,000	12,033,000	126,169,088
80	Apr 11, 2026 06:43	3,080	66,080,000	32,093,000	11,032,000	126,267,392
81	Apr 11, 2026 06:41	3,081	64,664,799	31,101,000	12,039,000	126,263,296
82	Apr 11, 2026 06:41	3,082	65,237,803	29,096,000	14,046,000	126,267,392
83	Apr 11, 2026 06:43	3,082	68,287,731	31,102,000	12,039,000	126,177,280
84	Apr 11, 2026 06:44	3,082	62,417,900	32,110,000	11,037,000	126,259,200
85	Apr 11, 2026 06:43	3,083	70,281,796	31,114,000	12,044,000	126,181,376
86	Apr 11, 2026 06:43	3,084	63,347,076	31,131,000	12,050,000	126,173,184
87	Apr 11, 2026 06:36	3,086	64,424,939	31,142,000	12,055,000	126,177,280
88	Apr 11, 2026 06:43	3,086	71,307,642	30,142,000	13,061,000	126,164,992
89	Apr 11, 2026 06:43	3,086	70,486,225	31,147,000	12,056,000	126,160,896
90	Apr 11, 2026 06:47	3,086	67,011,383	31,151,000	12,058,000	126,173,184
91	Apr 11, 2026 06:41	3,088	66,074,593	30,163,000	13,070,000	126,267,392
92	Apr 11, 2026 06:36	3,091	67,027,522	32,200,000	11,068,000	126,267,392
93	Apr 11, 2026 06:36	3,092	66,025,636	30,205,000	13,089,000	126,267,392
94	Apr 11, 2026 06:37	3,122	68,096,495	29,797,000	13,905,000	126,164,992
95	Apr 11, 2026 06:47	3,129	68,449,041	29,863,000	13,936,000	126,169,088
96	Apr 11, 2026 06:43	3,146	64,881,059	31,026,000	13,011,000	126,005,248
97	Apr 11, 2026 06:37	3,148	67,598,997	32,057,000	12,021,000	126,173,184
98	Apr 11, 2026 06:36	3,164	63,835,368	32,211,000	12,079,000	126,267,392
99	Apr 11, 2026 06:40	3,167	63,729,997	34,263,000	10,077,000	126,173,184
100	Apr 11, 2026 06:43	3,238	68,363,283	38,279,000	7,051,000	126,177,280
101	Apr 11, 2026 06:36	3,265	74,104,720	31,794,000	13,909,000	126,005,248
102	Apr 11, 2026 06:43	3,335	70,972,087	35,530,000	11,166,000	126,169,088

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