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 listJun 30, 2023 17:02

Alexander Monakov

Score: 4,549

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 30, 2023 17:02	4,497	28,680,086	14,391,000	0	2,494,464
2	Jun 30, 2023 17:02	4,502	35,322,919	14,405,000	0	2,502,656
3	Jun 30, 2023 17:02	4,505	32,626,849	14,415,000	0	2,277,376
4	Jun 30, 2023 17:02	4,511	34,961,574	14,435,000	0	2,277,376
5	Jun 30, 2023 17:02	4,514	30,650,954	14,446,000	0	2,498,560
6	Jun 30, 2023 17:02	4,516	31,640,890	14,452,000	0	2,502,656
7	Jun 30, 2023 17:02	4,519	30,356,656	14,460,000	0	2,494,464
8	Jun 30, 2023 17:02	4,521	29,879,097	14,467,000	0	2,277,376
9	Jun 30, 2023 17:02	4,522	36,680,577	13,436,000	1,033,000	2,494,464
10	Jun 30, 2023 17:02	4,528	36,283,665	13,456,000	1,035,000	2,498,560
11	Jun 30, 2023 17:02	4,534	36,883,476	14,508,000	0	2,494,464
12	Jun 30, 2023 17:02	4,535	38,814,436	14,512,000	0	2,277,376
13	Jun 30, 2023 17:02	4,536	35,188,843	14,516,000	0	2,277,376
14	Jun 30, 2023 17:02	4,536	36,480,095	13,478,000	1,036,000	2,494,464
15	Jun 30, 2023 17:02	4,538	30,646,022	13,484,000	1,037,000	2,277,376
16	Jun 30, 2023 17:02	4,540	35,316,944	14,529,000	0	2,498,560
17	Jun 30, 2023 17:02	4,544	35,444,555	14,541,000	0	2,277,376
18	Jun 30, 2023 17:02	4,548	41,134,640	13,583,000	970,000	2,494,464
19	Jun 30, 2023 17:02	4,549	33,501,920	14,557,000	0	2,277,376
20	Jun 30, 2023 17:02	4,557	30,117,586	14,581,000	0	2,277,376
21	Jun 30, 2023 17:02	4,561	41,389,947	13,552,000	1,042,000	2,502,656
22	Jun 30, 2023 17:02	4,562	29,055,402	13,555,000	1,042,000	2,498,560
23	Jun 30, 2023 17:02	4,562	35,607,779	14,599,000	0	2,498,560
24	Jun 30, 2023 17:02	4,573	46,230,555	13,589,000	1,045,000	2,277,376
25	Jun 30, 2023 17:02	4,578	29,595,403	13,604,000	1,046,000	2,277,376
26	Jun 30, 2023 17:02	4,578	30,311,120	13,602,000	1,046,000	2,535,424
27	Jun 30, 2023 17:02	4,588	41,360,555	13,635,000	1,048,000	2,277,376
28	Jun 30, 2023 17:02	4,770	84,105,506	15,262,784	0	2,244,608
29	Jun 30, 2023 17:02	4,779	71,284,746	15,292,200	0	2,248,704
30	Jun 30, 2023 17:02	4,785	98,100,047	15,313,244	0	2,240,512
31	Jun 30, 2023 17:02	4,786	101,829,874	15,315,871	0	2,248,704
32	Jun 30, 2023 17:02	4,796	86,873,459	15,345,881	0	2,248,704
33	Jun 30, 2023 17:02	4,811	58,411,413	15,395,213	0	2,240,512
34	Jun 30, 2023 17:02	4,816	89,257,757	15,410,198	0	2,244,608
35	Jun 30, 2023 17:02	4,821	95,089,525	15,425,616	0	2,244,608
36	Jun 30, 2023 17:02	4,848	84,625,005	15,513,117	0	2,240,512

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