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 listMay 22, 2021 18:35

Andrey Tsvetkov

Score: 5,726

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 22, 2021 18:35	5,689	41,644,498	16,183,000	2,022,000	2,334,720
2	May 22, 2021 18:35	5,693	35,402,623	16,194,000	2,024,000	2,527,232
3	May 22, 2021 18:35	5,695	44,174,636	16,199,000	2,024,000	2,334,720
4	May 22, 2021 18:35	5,696	39,858,231	15,189,000	3,037,000	2,527,232
5	May 22, 2021 18:35	5,696	38,015,570	15,189,000	3,037,000	2,531,328
6	May 22, 2021 18:35	5,699	33,209,419	17,223,000	1,013,000	2,334,720
7	May 22, 2021 18:35	5,699	40,779,114	15,197,000	3,039,000	2,531,328
8	May 22, 2021 18:35	5,699	38,952,661	16,212,000	2,026,000	2,338,816
9	May 22, 2021 18:35	5,708	40,732,710	16,235,000	2,029,000	2,531,328
10	May 22, 2021 18:35	5,714	43,128,053	15,239,000	3,047,000	2,519,040
11	May 22, 2021 18:35	5,718	40,508,753	15,247,000	3,049,000	2,334,720
12	May 22, 2021 18:35	5,722	44,368,232	16,277,000	2,034,000	2,334,720
13	May 22, 2021 18:35	5,724	38,395,031	15,264,000	3,052,000	2,527,232
14	May 22, 2021 18:35	5,725	43,699,624	15,266,000	3,053,000	2,334,720
15	May 22, 2021 18:35	5,725	67,867,480	18,318,762	0	2,232,320
16	May 22, 2021 18:35	5,726	40,103,949	16,287,000	2,035,000	2,334,720
17	May 22, 2021 18:35	5,731	86,437,005	18,338,891	0	2,232,320
18	May 22, 2021 18:35	5,743	87,064,153	18,378,785	0	2,232,320
19	May 22, 2021 18:35	5,743	100,995,094	18,377,897	0	2,236,416
20	May 22, 2021 18:35	5,748	35,123,684	16,350,000	2,043,000	2,334,720
21	May 22, 2021 18:35	5,752	63,046,281	18,405,400	0	2,228,224
22	May 22, 2021 18:35	5,752	55,937,345	18,405,005	0	2,236,416
23	May 22, 2021 18:35	5,753	77,288,337	18,411,099	0	2,232,320
24	May 22, 2021 18:35	5,761	41,699,174	16,387,000	2,048,000	2,531,328
25	May 22, 2021 18:35	5,761	39,733,785	16,388,000	2,048,000	2,326,528
26	May 22, 2021 18:35	5,763	88,184,801	18,440,432	0	2,224,128
27	May 22, 2021 18:35	5,779	75,358,803	18,493,794	0	2,228,224
28	May 22, 2021 18:35	5,782	86,006,541	18,501,869	0	2,228,224
29	May 22, 2021 18:35	5,801	95,999,348	18,562,536	0	2,228,224
30	May 22, 2021 18:35	5,871	77,703,057	18,787,784	0	2,232,320

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