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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olliecrowScore: 4,353Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 28, 2026 12:59	4,333	28,042,322	12,877,000	990,000	2,494,464
2	Mar 28, 2026 12:58	4,335	42,286,532	13,873,000	0	2,502,656
3	Mar 28, 2026 13:00	4,335	30,559,013	13,871,000	0	2,498,560
4	Mar 28, 2026 12:58	4,336	38,274,717	12,883,000	991,000	2,502,656
5	Mar 28, 2026 12:59	4,337	26,704,174	13,878,000	0	2,498,560
6	Mar 28, 2026 13:00	4,340	34,597,932	13,889,000	0	2,281,472
7	Mar 28, 2026 12:59	4,341	31,356,657	13,890,000	0	2,494,464
8	Mar 28, 2026 12:59	4,341	32,111,770	12,900,000	992,000	2,281,472
9	Mar 28, 2026 12:59	4,342	33,324,054	12,902,000	992,000	2,494,464
10	Mar 28, 2026 12:59	4,343	34,598,330	12,828,000	1,069,000	2,494,464
11	Mar 28, 2026 13:00	4,345	32,794,667	13,905,000	0	2,281,472
12	Mar 28, 2026 13:00	4,345	29,652,939	12,912,000	993,000	2,281,472
13	Mar 28, 2026 12:59	4,349	33,073,700	12,847,000	1,070,000	2,281,472
14	Mar 28, 2026 12:59	4,350	30,362,005	12,926,000	994,000	2,490,368
15	Mar 28, 2026 12:59	4,351	31,484,193	12,929,000	994,000	2,494,464
16	Mar 28, 2026 12:59	4,353	33,754,440	12,936,000	995,000	2,281,472
17	Mar 28, 2026 12:58	4,355	31,101,346	12,941,000	995,000	2,281,472
18	Mar 28, 2026 12:59	4,356	36,797,209	12,944,000	995,000	2,535,424
19	Mar 28, 2026 12:59	4,358	31,699,878	12,950,000	996,000	2,494,464
20	Mar 28, 2026 12:59	4,359	28,262,755	11,957,000	1,992,000	2,494,464
21	Mar 28, 2026 12:59	4,360	29,704,821	11,958,000	1,993,000	2,494,464
22	Mar 28, 2026 13:00	4,360	33,152,223	12,956,000	996,000	2,281,472
23	Mar 28, 2026 13:00	4,361	28,768,481	12,958,000	996,000	2,281,472
24	Mar 28, 2026 12:58	4,363	36,989,431	11,967,000	1,994,000	2,490,368
25	Mar 28, 2026 12:59	4,364	33,625,620	11,970,000	1,995,000	2,494,464
26	Mar 28, 2026 12:59	4,370	31,861,516	11,986,000	1,997,000	2,281,472
27	Mar 28, 2026 12:58	4,370	39,995,278	11,986,000	1,997,000	2,490,368
28	Mar 28, 2026 12:59	4,377	31,707,148	13,007,000	1,000,000	2,281,472
29	Mar 28, 2026 12:58	4,378	38,133,504	12,007,000	2,001,000	2,486,272
30	Mar 28, 2026 12:59	4,386	35,400,160	12,030,000	2,005,000	2,498,560

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