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: 4,423Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 28, 2026 12:47	4,389	41,979,940	12,040,000	2,006,000	2,404,352
2	Mar 28, 2026 12:48	4,392	37,451,433	12,046,000	2,007,000	2,408,448
3	Mar 28, 2026 12:48	4,393	37,218,882	12,050,000	2,008,000	2,412,544
4	Mar 28, 2026 12:47	4,400	34,007,342	12,070,000	2,011,000	2,412,544
5	Mar 28, 2026 12:48	4,403	30,244,871	12,078,000	2,013,000	2,400,256
6	Mar 28, 2026 12:47	4,403	35,459,185	12,077,000	2,012,000	2,408,448
7	Mar 28, 2026 12:48	4,406	34,922,820	12,086,000	2,014,000	2,400,256
8	Mar 28, 2026 12:48	4,410	36,369,065	12,097,000	2,016,000	2,285,568
9	Mar 28, 2026 12:47	4,413	31,779,350	12,106,000	2,017,000	2,408,448
10	Mar 28, 2026 12:48	4,417	29,897,879	12,116,000	2,019,000	2,408,448
11	Mar 28, 2026 12:48	4,418	28,990,134	12,119,000	2,019,000	2,285,568
12	Mar 28, 2026 12:48	4,420	30,895,917	12,123,000	2,020,000	2,412,544
13	Mar 28, 2026 12:47	4,421	32,153,899	13,136,000	1,010,000	2,281,472
14	Mar 28, 2026 12:47	4,422	39,131,974	12,130,000	2,021,000	2,285,568
15	Mar 28, 2026 12:47	4,422	34,763,203	12,130,000	2,021,000	2,408,448
16	Mar 28, 2026 12:48	4,423	36,790,221	13,144,000	1,011,000	2,285,568
17	Mar 28, 2026 12:48	4,424	29,545,464	13,146,000	1,011,000	2,285,568
18	Mar 28, 2026 12:48	4,424	31,561,708	12,135,000	2,022,000	2,412,544
19	Mar 28, 2026 12:47	4,424	31,061,696	13,147,000	1,011,000	2,285,568
20	Mar 28, 2026 12:48	4,425	28,159,493	13,148,000	1,011,000	2,404,352
21	Mar 28, 2026 12:47	4,426	42,481,648	13,153,000	1,011,000	2,285,568
22	Mar 28, 2026 12:48	4,427	35,484,691	12,142,000	2,023,000	2,285,568
23	Mar 28, 2026 12:48	4,428	43,217,492	12,144,000	2,024,000	2,404,352
24	Mar 28, 2026 12:47	4,431	31,826,003	12,153,000	2,025,000	2,285,568
25	Mar 28, 2026 12:47	4,433	31,483,879	12,161,000	2,026,000	2,285,568
26	Mar 28, 2026 12:48	4,440	34,735,838	13,194,000	1,014,000	2,404,352
27	Mar 28, 2026 12:47	4,440	42,156,653	12,178,000	2,029,000	2,498,560
28	Mar 28, 2026 12:48	4,441	33,421,942	12,180,000	2,030,000	2,285,568
29	Mar 28, 2026 12:48	4,441	31,774,543	13,197,000	1,015,000	2,285,568
30	Mar 28, 2026 12:48	4,450	27,300,192	13,222,000	1,017,000	2,412,544

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