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.

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Score: 4,445

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 26, 2024 20:28	4,420	31,667,994	12,125,000	2,020,000	2,535,424
2	Jul 26, 2024 20:37	4,429	29,226,295	12,149,000	2,024,000	2,273,280
3	Jul 26, 2024 20:37	4,432	28,586,809	12,157,000	2,026,000	2,273,280
4	Jul 26, 2024 20:37	4,434	35,540,958	12,162,000	2,027,000	2,535,424
5	Jul 26, 2024 20:37	4,434	27,804,002	12,162,000	2,027,000	2,273,280
6	Jul 26, 2024 20:28	4,435	43,855,535	12,165,000	2,027,000	2,449,408
7	Jul 26, 2024 20:37	4,435	30,270,199	12,165,000	2,027,000	2,273,280
8	Jul 26, 2024 20:28	4,437	32,266,706	12,170,000	2,028,000	2,535,424
9	Jul 26, 2024 20:37	4,437	28,995,780	12,169,000	2,028,000	2,457,600
10	Jul 26, 2024 20:37	4,439	32,293,883	12,177,000	2,029,000	2,535,424
11	Jul 26, 2024 20:37	4,439	31,873,515	12,177,000	2,029,000	2,449,408
12	Jul 26, 2024 20:37	4,439	32,913,892	12,177,000	2,029,000	2,453,504
13	Jul 26, 2024 20:28	4,441	34,816,440	12,181,000	2,030,000	2,273,280
14	Jul 26, 2024 20:28	4,441	32,791,921	12,181,000	2,030,000	2,535,424
15	Jul 26, 2024 20:28	4,441	35,168,882	12,180,000	2,030,000	2,273,280
16	Jul 26, 2024 20:37	4,442	34,443,291	12,184,000	2,030,000	2,453,504
17	Jul 26, 2024 20:37	4,444	34,600,615	12,190,000	2,031,000	2,535,424
18	Jul 26, 2024 20:37	4,444	30,477,577	12,190,000	2,031,000	2,273,280
19	Jul 26, 2024 20:37	4,445	42,617,946	12,192,000	2,032,000	2,535,424
20	Jul 26, 2024 20:37	4,446	28,386,803	12,195,000	2,032,000	2,449,408
21	Jul 26, 2024 20:28	4,446	35,767,362	12,194,000	2,032,000	2,457,600
22	Jul 26, 2024 20:37	4,447	30,349,876	12,197,000	2,032,000	2,273,280
23	Jul 26, 2024 20:28	4,452	29,875,895	12,211,000	2,035,000	2,449,408
24	Jul 26, 2024 20:37	4,454	31,213,001	13,234,000	1,018,000	2,461,696
25	Jul 26, 2024 20:37	4,454	38,096,271	13,157,000	1,096,000	2,535,424
26	Jul 26, 2024 20:37	4,455	35,255,634	12,219,000	2,036,000	2,273,280
27	Jul 26, 2024 20:28	4,462	30,663,755	13,259,000	1,019,000	2,445,312
28	Jul 26, 2024 20:37	4,678	83,256,796	14,968,186	0	2,203,648
29	Jul 26, 2024 20:37	4,694	94,759,275	15,020,835	0	2,211,840
30	Jul 26, 2024 20:28	4,695	81,107,291	15,024,653	0	2,195,456
31	Jul 26, 2024 20:28	4,695	89,324,865	15,024,847	0	2,207,744
32	Jul 26, 2024 20:28	4,704	91,408,350	15,053,803	0	2,195,456
33	Jul 26, 2024 20:37	4,711	98,666,702	15,076,147	0	2,203,648
34	Jul 26, 2024 20:37	4,713	60,873,596	15,080,782	0	2,195,456
35	Jul 26, 2024 20:37	4,724	83,088,123	15,116,023	0	2,195,456
36	Jul 26, 2024 20:37	4,727	89,598,033	15,126,373	0	2,338,816

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