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 06:50

Josu San MartinScore: 3,061Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 11, 2026 06:44	3,036	64,562,904	28,670,000	13,840,000	126,267,392
2	Apr 11, 2026 06:44	3,039	64,357,302	27,708,000	14,844,000	126,267,392
3	Apr 11, 2026 06:44	3,044	72,023,888	27,754,000	14,868,000	126,267,392
4	Apr 11, 2026 06:49	3,044	70,533,805	28,742,000	13,875,000	126,173,184
5	Apr 11, 2026 06:50	3,044	68,342,922	29,728,000	12,882,000	126,267,392
6	Apr 11, 2026 06:50	3,044	62,057,564	28,744,000	13,876,000	126,267,392
7	Apr 11, 2026 06:46	3,045	66,450,578	30,734,000	11,897,000	126,267,392
8	Apr 11, 2026 06:44	3,046	67,189,689	28,758,000	13,883,000	126,173,184
9	Apr 11, 2026 06:46	3,047	74,103,854	31,745,000	10,912,000	126,267,392
10	Apr 11, 2026 06:50	3,048	62,528,067	29,465,000	13,208,000	126,267,392
11	Apr 11, 2026 06:46	3,051	64,985,006	29,804,000	12,915,000	126,169,088
12	Apr 11, 2026 06:44	3,051	73,918,135	30,792,000	11,919,000	126,267,392
13	Apr 11, 2026 06:49	3,051	68,959,255	27,812,000	14,899,000	126,267,392
14	Apr 11, 2026 06:46	3,051	66,971,809	29,801,000	12,914,000	126,169,088
15	Apr 11, 2026 06:49	3,052	70,941,960	28,817,000	13,912,000	126,173,184
16	Apr 11, 2026 06:46	3,052	67,454,400	28,817,000	13,911,000	126,267,392
17	Apr 11, 2026 06:49	3,053	60,014,939	29,821,000	12,922,000	126,267,392
18	Apr 11, 2026 06:44	3,053	65,699,837	29,820,000	12,922,000	126,177,280
19	Apr 11, 2026 06:51	3,053	69,412,604	28,829,000	13,917,000	126,271,488
20	Apr 11, 2026 06:44	3,054	69,618,543	29,830,000	12,926,000	126,267,392
21	Apr 11, 2026 06:49	3,054	63,677,283	29,826,000	12,924,000	126,267,392
22	Apr 11, 2026 06:49	3,055	69,573,362	30,833,000	11,935,000	126,169,088
23	Apr 11, 2026 06:49	3,055	63,676,436	28,841,000	13,923,000	126,263,296
24	Apr 11, 2026 06:46	3,056	68,626,493	30,848,000	11,941,000	126,267,392
25	Apr 11, 2026 06:44	3,057	63,263,253	28,861,000	13,933,000	126,259,200
26	Apr 11, 2026 06:46	3,057	65,968,190	29,856,000	12,937,000	126,173,184
27	Apr 11, 2026 06:49	3,058	62,215,138	30,865,000	11,947,000	126,267,392
28	Apr 11, 2026 06:44	3,058	60,253,316	29,865,000	12,941,000	126,164,992
29	Apr 11, 2026 06:50	3,058	68,673,330	28,870,000	13,937,000	126,169,088
30	Apr 11, 2026 06:46	3,059	62,626,387	28,880,000	13,942,000	126,267,392
31	Apr 11, 2026 06:44	3,059	68,013,656	30,870,000	11,949,000	126,177,280
32	Apr 11, 2026 06:49	3,060	62,129,806	30,885,000	11,955,000	126,271,488
33	Apr 11, 2026 06:44	3,060	63,784,422	31,885,000	10,960,000	126,267,392
34	Apr 11, 2026 06:46	3,061	66,944,544	28,900,000	13,951,000	126,267,392
35	Apr 11, 2026 06:46	3,061	65,821,016	30,895,000	11,959,000	126,271,488
36	Apr 11, 2026 06:51	3,062	61,525,071	29,905,000	12,959,000	126,169,088
37	Apr 11, 2026 06:50	3,062	64,499,343	30,902,000	11,962,000	126,005,248
38	Apr 11, 2026 06:50	3,063	63,059,859	30,916,000	11,967,000	126,267,392
39	Apr 11, 2026 06:46	3,064	64,726,514	30,920,000	11,969,000	126,173,184
40	Apr 11, 2026 06:44	3,065	67,031,824	30,935,000	11,974,000	126,267,392
41	Apr 11, 2026 06:51	3,066	65,838,274	29,949,000	12,978,000	126,164,992
42	Apr 11, 2026 06:50	3,068	66,137,304	30,970,000	11,988,000	126,005,248
43	Apr 11, 2026 06:49	3,068	63,744,140	30,969,000	11,988,000	126,169,088
44	Apr 11, 2026 06:51	3,069	65,616,831	28,980,000	13,990,000	126,177,280
45	Apr 11, 2026 06:46	3,069	63,580,836	29,977,000	12,990,000	126,242,816
46	Apr 11, 2026 06:51	3,070	68,840,164	30,981,000	11,992,000	126,005,248
47	Apr 11, 2026 06:46	3,071	62,036,962	31,992,000	10,997,000	126,164,992
48	Apr 11, 2026 06:46	3,071	60,968,208	28,992,000	13,996,000	126,164,992
49	Apr 11, 2026 06:50	3,073	62,457,661	31,011,000	12,004,000	126,267,392
50	Apr 11, 2026 06:49	3,075	64,856,191	30,036,000	13,015,000	126,177,280
51	Apr 11, 2026 06:46	3,075	70,322,921	31,033,000	12,012,000	126,267,392
52	Apr 11, 2026 06:44	3,077	66,315,697	31,054,000	12,021,000	126,267,392
53	Apr 11, 2026 06:44	3,077	65,877,858	30,058,000	13,025,000	126,263,296
54	Apr 11, 2026 06:49	3,078	69,674,832	32,065,000	11,022,000	126,173,184
55	Apr 11, 2026 06:50	3,080	68,009,446	31,087,000	12,033,000	126,267,392
56	Apr 11, 2026 06:44	3,081	71,790,272	30,095,000	13,041,000	126,005,248
57	Apr 11, 2026 06:44	3,084	64,636,493	31,123,000	12,047,000	126,267,392
58	Apr 11, 2026 06:49	3,085	68,291,548	30,130,000	13,056,000	126,169,088
59	Apr 11, 2026 06:51	3,085	66,818,808	31,134,000	12,052,000	126,169,088
60	Apr 11, 2026 06:50	3,088	63,827,506	32,169,000	11,058,000	126,005,248
61	Apr 11, 2026 06:44	3,088	65,496,397	31,166,000	12,064,000	126,267,392
62	Apr 11, 2026 06:50	3,091	63,328,905	32,200,000	11,069,000	126,005,248
63	Apr 11, 2026 06:44	3,094	69,810,276	31,225,000	12,087,000	126,169,088
64	Apr 11, 2026 06:46	3,122	60,931,575	29,802,000	13,907,000	126,267,392
65	Apr 11, 2026 06:50	3,143	64,991,772	33,004,000	11,001,000	126,177,280
66	Apr 11, 2026 06:49	3,158	69,300,126	26,128,000	18,088,000	126,181,376
67	Apr 11, 2026 06:49	3,169	69,092,040	33,278,000	11,092,000	126,173,184
68	Apr 11, 2026 06:46	3,244	78,638,355	32,291,000	13,118,000	126,263,296
69	Apr 11, 2026 06:46	3,577	74,889,496	32,052,000	18,029,000	126,271,488

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