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 listJul 13, 2021 19:34

Andrey Tsvetkov

Score: 5,691

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 13, 2021 19:35	5,636	42,372,385	15,030,000	3,006,000	2,531,328
2	Jul 13, 2021 19:35	5,642	45,889,848	16,049,000	2,006,000	2,523,136
3	Jul 13, 2021 19:34	5,647	44,259,466	15,944,000	2,125,000	2,334,720
4	Jul 13, 2021 19:34	5,648	45,696,628	15,062,000	3,012,000	2,392,064
5	Jul 13, 2021 19:34	5,659	50,553,932	15,092,000	3,018,000	2,334,720
6	Jul 13, 2021 19:34	5,666	39,791,171	16,117,000	2,014,000	2,347,008
7	Jul 13, 2021 19:34	5,668	38,650,624	16,124,000	2,015,000	2,392,064
8	Jul 13, 2021 19:35	5,670	63,891,175	18,142,959	0	2,240,512
9	Jul 13, 2021 19:34	5,671	35,637,615	15,123,000	3,024,000	2,531,328
10	Jul 13, 2021 19:34	5,671	43,745,623	15,124,000	3,024,000	2,334,720
11	Jul 13, 2021 19:34	5,674	43,012,415	16,139,000	2,017,000	2,334,720
12	Jul 13, 2021 19:35	5,679	44,227,403	15,144,000	3,028,000	2,519,040
13	Jul 13, 2021 19:34	5,683	41,092,284	15,155,000	3,031,000	2,334,720
14	Jul 13, 2021 19:35	5,685	48,798,996	16,172,000	2,021,000	2,527,232
15	Jul 13, 2021 19:35	5,685	39,698,331	16,170,000	2,021,000	2,334,720
16	Jul 13, 2021 19:34	5,687	41,507,614	16,176,000	2,022,000	2,334,720
17	Jul 13, 2021 19:34	5,689	42,320,604	15,171,000	3,034,000	2,334,720
18	Jul 13, 2021 19:34	5,689	34,990,371	17,135,000	1,070,000	2,523,136
19	Jul 13, 2021 19:34	5,691	77,944,600	18,209,685	0	2,224,128
20	Jul 13, 2021 19:35	5,692	65,326,089	18,215,199	0	2,228,224
21	Jul 13, 2021 19:35	5,694	38,611,309	16,196,000	2,024,000	2,334,720
22	Jul 13, 2021 19:34	5,695	41,717,881	15,188,000	3,037,000	2,347,008
23	Jul 13, 2021 19:34	5,695	37,090,692	16,200,000	2,025,000	2,334,720
24	Jul 13, 2021 19:34	5,697	69,933,791	18,231,578	0	2,232,320
25	Jul 13, 2021 19:34	5,704	40,066,175	16,224,000	2,028,000	2,334,720
26	Jul 13, 2021 19:34	5,705	40,987,675	15,214,000	3,042,000	2,326,528
27	Jul 13, 2021 19:34	5,706	46,775,457	15,217,000	3,043,000	2,334,720
28	Jul 13, 2021 19:35	5,712	45,156,493	15,233,000	3,046,000	2,527,232
29	Jul 13, 2021 19:34	5,716	106,195,022	18,290,587	0	2,240,512
30	Jul 13, 2021 19:35	5,723	41,699,442	16,280,000	2,035,000	2,527,232
31	Jul 13, 2021 19:34	5,723	84,318,138	18,312,105	0	2,232,320
32	Jul 13, 2021 19:34	5,725	43,013,627	16,284,000	2,035,000	2,347,008
33	Jul 13, 2021 19:34	5,734	89,544,685	18,347,232	0	2,236,416
34	Jul 13, 2021 19:35	5,736	38,600,486	14,277,000	4,079,000	2,334,720
35	Jul 13, 2021 19:34	5,790	86,231,844	18,527,295	0	2,228,224
36	Jul 13, 2021 19:35	5,879	76,392,727	18,814,275	0	2,236,416

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