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: 4,347Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 28, 2026 12:33	4,329	30,498,040	12,863,000	989,000	2,281,472
2	Mar 28, 2026 12:34	4,334	29,061,967	12,880,000	990,000	2,281,472
3	Mar 28, 2026 12:31	4,335	32,359,494	12,882,000	990,000	2,281,472
4	Mar 28, 2026 12:31	4,335	32,634,210	13,872,000	0	2,498,560
5	Mar 28, 2026 12:31	4,335	28,117,383	13,871,000	0	2,486,272
6	Mar 28, 2026 12:31	4,337	41,605,942	12,886,000	991,000	2,490,368
7	Mar 28, 2026 12:33	4,337	35,453,354	13,879,000	0	2,494,464
8	Mar 28, 2026 12:34	4,338	29,850,770	12,891,000	991,000	2,498,560
9	Mar 28, 2026 12:32	4,339	34,823,395	12,893,000	991,000	2,281,472
10	Mar 28, 2026 12:34	4,340	30,033,090	12,896,000	992,000	2,506,752
11	Mar 28, 2026 12:31	4,341	33,762,449	13,892,000	0	2,490,368
12	Mar 28, 2026 12:31	4,342	29,951,138	12,902,000	992,000	2,281,472
13	Mar 28, 2026 12:32	4,343	31,817,634	12,904,000	992,000	2,281,472
14	Mar 28, 2026 12:33	4,344	28,051,013	12,908,000	992,000	2,490,368
15	Mar 28, 2026 12:32	4,346	26,550,782	13,906,000	0	2,494,464
16	Mar 28, 2026 12:32	4,346	30,631,265	12,915,000	993,000	2,498,560
17	Mar 28, 2026 12:31	4,346	41,196,584	12,915,000	993,000	2,494,464
18	Mar 28, 2026 12:34	4,347	27,757,149	11,922,000	1,987,000	2,281,472
19	Mar 28, 2026 12:31	4,347	30,621,498	13,910,000	0	2,281,472
20	Mar 28, 2026 12:34	4,347	29,492,029	12,917,000	993,000	2,498,560
21	Mar 28, 2026 12:32	4,348	26,253,295	13,915,000	0	2,490,368
22	Mar 28, 2026 12:32	4,349	35,594,649	12,924,000	994,000	2,281,472
23	Mar 28, 2026 12:31	4,349	30,749,935	12,923,000	994,000	2,281,472
24	Mar 28, 2026 12:33	4,350	34,067,895	12,926,000	994,000	2,281,472
25	Mar 28, 2026 12:31	4,351	32,072,567	12,930,000	994,000	2,281,472
26	Mar 28, 2026 12:33	4,353	35,806,025	12,936,000	995,000	2,502,656
27	Mar 28, 2026 12:32	4,354	41,957,238	12,938,000	995,000	2,494,464
28	Mar 28, 2026 12:34	4,355	29,162,922	12,942,000	995,000	2,490,368
29	Mar 28, 2026 12:33	4,356	38,192,133	12,943,000	995,000	2,494,464
30	Mar 28, 2026 12:33	4,358	28,673,373	12,948,000	996,000	2,490,368
31	Mar 28, 2026 12:31	4,363	32,152,957	12,965,000	997,000	2,498,560
32	Mar 28, 2026 12:33	4,369	25,754,145	12,984,000	998,000	2,281,472
33	Mar 28, 2026 12:33	4,369	46,638,681	12,983,000	998,000	2,490,368
34	Mar 28, 2026 12:32	4,369	23,841,683	12,982,000	998,000	2,281,472
35	Mar 28, 2026 12:32	4,369	40,124,910	12,983,000	998,000	2,498,560
36	Mar 28, 2026 12:31	4,391	28,682,368	13,048,000	1,003,000	2,502,656

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