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: 4,449

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 26, 2024 20:29	4,423	33,231,253	12,131,000	2,021,000	2,535,424
2	Jul 26, 2024 20:30	4,424	32,084,386	12,136,000	2,022,000	2,441,216
3	Jul 26, 2024 20:37	4,428	27,271,788	12,144,000	2,024,000	2,273,280
4	Jul 26, 2024 20:30	4,428	37,410,105	12,147,000	2,024,000	2,437,120
5	Jul 26, 2024 20:37	4,430	30,621,008	12,152,000	2,025,000	2,445,312
6	Jul 26, 2024 20:29	4,433	29,139,273	12,161,000	2,026,000	2,535,424
7	Jul 26, 2024 20:30	4,433	31,238,683	12,160,000	2,026,000	2,445,312
8	Jul 26, 2024 20:29	4,435	35,420,728	12,164,000	2,027,000	2,535,424
9	Jul 26, 2024 20:37	4,437	34,832,644	12,171,000	2,028,000	2,273,280
10	Jul 26, 2024 20:37	4,439	36,359,088	12,175,000	2,029,000	2,535,424
11	Jul 26, 2024 20:37	4,439	32,492,320	12,177,000	2,029,000	2,449,408
12	Jul 26, 2024 20:30	4,441	33,652,149	12,181,000	2,030,000	2,535,424
13	Jul 26, 2024 20:30	4,445	28,817,968	12,193,000	2,032,000	2,535,424
14	Jul 26, 2024 20:29	4,446	37,007,026	12,195,000	2,032,000	2,273,280
15	Jul 26, 2024 20:29	4,447	31,385,796	12,197,000	2,032,000	2,535,424
16	Jul 26, 2024 20:29	4,447	39,186,350	12,198,000	2,033,000	2,441,216
17	Jul 26, 2024 20:37	4,448	27,497,596	12,202,000	2,033,000	2,535,424
18	Jul 26, 2024 20:30	4,449	25,675,235	12,203,000	2,033,000	2,273,280
19	Jul 26, 2024 20:29	4,449	33,784,437	12,204,000	2,034,000	2,273,280
20	Jul 26, 2024 20:37	4,450	32,150,886	12,206,000	2,034,000	2,535,424
21	Jul 26, 2024 20:29	4,451	27,987,616	12,209,000	2,034,000	2,453,504
22	Jul 26, 2024 20:30	4,452	29,345,112	12,211,000	2,035,000	2,445,312
23	Jul 26, 2024 20:30	4,454	34,137,877	12,218,000	2,036,000	2,273,280
24	Jul 26, 2024 20:29	4,457	33,134,152	12,226,000	2,037,000	2,445,312
25	Jul 26, 2024 20:37	4,457	42,635,133	12,226,000	2,037,000	2,535,424
26	Jul 26, 2024 20:37	4,461	34,277,640	12,235,000	2,039,000	2,531,328
27	Jul 26, 2024 20:30	4,513	38,785,837	13,409,000	1,031,000	2,273,280
28	Jul 26, 2024 20:29	4,673	81,392,186	14,952,401	0	2,199,552
29	Jul 26, 2024 20:30	4,678	95,991,191	14,969,717	0	2,207,744
30	Jul 26, 2024 20:37	4,693	81,513,976	15,018,005	0	2,199,552
31	Jul 26, 2024 20:37	4,697	74,340,289	15,029,287	0	2,199,552
32	Jul 26, 2024 20:29	4,698	74,587,277	15,032,026	0	2,187,264
33	Jul 26, 2024 20:30	4,703	99,906,785	15,049,866	0	2,207,744
34	Jul 26, 2024 20:37	4,713	93,819,084	15,082,337	0	2,203,648
35	Jul 26, 2024 20:30	4,713	94,611,542	15,082,120	0	2,203,648
36	Jul 26, 2024 20:29	4,719	80,410,888	15,100,141	0	2,240,512

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