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 27, 2024 16:15

Matt Stuchlik

Score: 4,510

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 27, 2024 16:15	4,472	29,674,455	13,288,000	1,022,000	2,437,120
2	Jul 27, 2024 16:15	4,481	35,388,225	14,338,000	0	2,273,280
3	Jul 27, 2024 16:15	4,486	27,842,949	14,354,000	0	2,273,280
4	Jul 27, 2024 16:15	4,491	28,033,564	14,372,000	0	2,424,832
5	Jul 27, 2024 16:15	4,491	32,148,302	14,372,000	0	2,535,424
6	Jul 27, 2024 16:15	4,494	33,842,073	14,381,000	0	2,535,424
7	Jul 27, 2024 16:15	4,495	30,768,765	14,383,000	0	2,428,928
8	Jul 27, 2024 16:15	4,495	28,958,159	14,383,000	0	2,273,280
9	Jul 27, 2024 16:15	4,495	35,935,912	14,384,000	0	2,428,928
10	Jul 27, 2024 16:15	4,496	33,931,672	14,388,000	0	2,535,424
11	Jul 27, 2024 16:15	4,497	35,151,067	14,390,000	0	2,535,424
12	Jul 27, 2024 16:15	4,500	31,011,825	13,372,000	1,028,000	2,535,424
13	Jul 27, 2024 16:15	4,501	35,713,440	13,376,000	1,028,000	2,424,832
14	Jul 27, 2024 16:15	4,503	31,271,236	14,411,000	0	2,514,944
15	Jul 27, 2024 16:15	4,505	32,037,478	14,415,000	0	2,535,424
16	Jul 27, 2024 16:15	4,507	33,930,655	14,422,000	0	2,273,280
17	Jul 27, 2024 16:15	4,507	30,339,354	14,421,000	0	2,433,024
18	Jul 27, 2024 16:15	4,508	40,643,159	14,425,000	0	2,428,928
19	Jul 27, 2024 16:15	4,510	31,375,507	14,432,000	0	2,527,232
20	Jul 27, 2024 16:15	4,512	37,915,794	14,439,000	0	2,273,280
21	Jul 27, 2024 16:15	4,517	34,388,108	13,423,000	1,032,000	2,273,280
22	Jul 27, 2024 16:15	4,517	36,857,465	14,453,000	0	2,535,424
23	Jul 27, 2024 16:15	4,517	31,775,967	13,423,000	1,032,000	2,535,424
24	Jul 27, 2024 16:15	4,526	33,353,263	14,483,000	0	2,273,280
25	Jul 27, 2024 16:15	4,526	28,229,919	14,483,000	0	2,514,944
26	Jul 27, 2024 16:15	4,530	34,041,736	13,461,000	1,035,000	2,535,424
27	Jul 27, 2024 16:15	4,536	32,171,008	13,480,000	1,036,000	2,535,424
28	Jul 27, 2024 16:15	4,731	76,206,118	15,138,449	0	2,179,072
29	Jul 27, 2024 16:15	4,737	62,553,831	15,157,922	0	2,187,264
30	Jul 27, 2024 16:15	4,739	87,067,522	15,166,359	0	2,191,360
31	Jul 27, 2024 16:15	4,747	78,778,147	15,191,975	0	2,187,264
32	Jul 27, 2024 16:15	4,748	65,470,914	15,194,449	0	2,187,264
33	Jul 27, 2024 16:15	4,760	56,808,782	15,230,691	0	2,318,336
34	Jul 27, 2024 16:15	4,768	85,335,350	15,257,727	0	2,187,264
35	Jul 27, 2024 16:15	4,772	90,699,613	15,269,274	0	2,179,072
36	Jul 27, 2024 16:15	4,776	61,647,253	15,282,783	0	2,310,144

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