Count uint8

Count the number of bytes equal to 127 in a binary stream as fast as possible.

Input: 250 000 000 uint8 values in binary on STDIN.

Output: The count of elements equal to 127, printed as a decimal string.

Restrictions:30s512Mb 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 listMar 17, 2023 14:50

Robert Burke

Score: 4,459

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 18, 2024 14:12	4,427	30,779,796	12,142,000	2,023,000	2,449,408
2	Mar 17, 2023 14:50	4,430	40,104,316	12,150,000	2,025,000	2,453,504
3	Oct 17, 2023 17:25	4,431	36,684,468	12,154,000	2,025,000	2,281,472
4	Oct 17, 2023 17:25	4,432	35,998,728	12,156,000	2,026,000	2,281,472
5	Apr 18, 2024 14:12	4,437	27,442,392	12,171,000	2,028,000	2,445,312
6	Oct 17, 2023 17:25	4,438	29,757,275	12,174,000	2,029,000	2,281,472
7	Mar 17, 2023 14:50	4,439	35,713,767	12,175,000	2,029,000	2,441,216
8	Oct 17, 2023 17:25	4,441	31,496,185	12,182,000	2,030,000	2,449,408
9	Apr 18, 2024 14:12	4,447	31,371,387	12,198,000	2,033,000	2,277,376
10	Jul 24, 2022 12:16	4,448	31,876,882	12,200,000	2,033,000	2,453,504
11	Apr 18, 2024 14:12	4,448	26,276,071	12,199,000	2,033,000	2,449,408
12	Apr 18, 2024 14:12	4,449	35,692,909	12,204,000	2,034,000	2,281,472
13	Oct 17, 2023 17:25	4,450	31,515,240	12,207,000	2,034,000	2,281,472
14	Oct 17, 2023 17:25	4,450	29,293,566	12,207,000	2,034,000	2,281,472
15	Apr 18, 2024 14:12	4,450	30,027,252	12,205,000	2,034,000	2,281,472
16	Mar 17, 2023 14:50	4,452	32,774,827	12,211,000	2,035,000	2,281,472
17	Jul 24, 2022 12:16	4,453	28,549,895	12,213,000	2,035,000	2,281,472
18	Mar 17, 2023 14:50	4,454	29,659,812	12,217,000	2,036,000	2,281,472
19	Jul 24, 2022 12:16	4,455	29,471,140	12,221,000	2,036,000	2,281,472
20	Apr 18, 2024 14:12	4,455	38,394,014	12,220,000	2,036,000	2,445,312
21	Jul 24, 2022 12:16	4,455	32,729,144	12,221,000	2,036,000	2,281,472
22	Oct 17, 2023 17:25	4,456	32,561,613	12,223,000	2,037,000	2,281,472
23	Jul 24, 2022 12:16	4,458	34,190,977	13,246,000	1,018,000	2,453,504
24	Jul 24, 2022 12:16	4,458	27,713,067	12,227,000	2,037,000	2,453,504
25	Apr 18, 2024 14:12	4,459	26,619,650	12,230,000	2,038,000	2,449,408
26	Mar 17, 2023 14:50	4,460	28,123,758	13,254,000	1,019,000	2,531,328
27	Mar 17, 2023 14:50	4,463	28,388,138	14,280,000	0	2,445,312
28	Oct 17, 2023 17:25	4,463	36,481,645	12,242,000	2,040,000	2,281,472
29	Jul 24, 2022 12:16	4,463	37,894,982	12,242,000	2,040,000	2,453,504
30	Mar 17, 2023 14:50	4,464	30,320,906	13,266,000	1,020,000	2,281,472
31	Apr 18, 2024 14:12	4,465	37,560,805	12,246,000	2,041,000	2,281,472
32	Mar 17, 2023 14:50	4,467	33,949,413	13,273,000	1,021,000	2,281,472
33	Oct 17, 2023 17:25	4,468	35,891,217	12,255,000	2,042,000	2,453,504
34	Jul 24, 2022 12:16	4,471	35,007,605	12,264,000	2,044,000	2,281,472
35	Jul 24, 2022 12:16	4,473	31,225,653	12,269,000	2,044,000	2,273,280
36	Mar 17, 2023 14:50	4,476	39,089,875	13,301,000	1,023,000	2,281,472
37	Mar 17, 2023 14:50	4,666	81,878,710	14,929,636	0	2,207,744
38	Jul 24, 2022 12:16	4,667	78,445,490	14,935,910	0	2,203,648
39	Jul 24, 2022 12:16	4,677	85,345,682	14,966,231	0	2,260,992
40	Jul 24, 2022 12:16	4,692	81,725,264	15,015,781	0	2,199,552
41	Mar 17, 2023 14:50	4,696	79,157,381	15,027,091	0	2,199,552
42	Apr 18, 2024 14:12	4,703	73,771,983	15,048,815	0	2,203,648
43	Oct 17, 2023 17:25	4,703	86,022,362	15,048,909	0	2,211,840
44	Oct 17, 2023 17:25	4,715	86,993,564	15,088,051	0	2,215,936
45	Oct 17, 2023 17:25	4,737	82,026,765	15,158,629	0	2,199,552
46	Apr 18, 2024 14:12	4,749	61,659,184	15,197,584	0	2,215,936
47	Apr 18, 2024 14:12	4,782	59,924,565	15,302,696	0	2,211,840
48	Mar 17, 2023 14:50	4,783	96,899,796	15,305,866	0	2,215,936

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