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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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.

Date	Author	Language	Status	Score
Jul 25, 2026 19:19	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 19:19	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 19:19	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 19:18	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 19:18	Kevin Heavey	CPPg++13.3.0	Success	4,008
Jul 25, 2026 19:17	Kevin Heavey	CPPg++13.3.0	Success	4,009
Jul 25, 2026 19:17	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 19:17	Kevin Heavey	CPPg++13.3.0	Success	4,010
Jul 25, 2026 19:17	Kevin Heavey	CPPg++13.3.0	Success	3,991
Jul 25, 2026 19:17	Kevin Heavey	CPPg++13.3.0	Success	4,009
Jul 25, 2026 19:15	Kevin Heavey	CPPg++13.3.0	Success	4,000
Jul 25, 2026 19:15	Kevin Heavey	CPPg++13.3.0	Success	4,004
Jul 25, 2026 19:15	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 19:15	Kevin Heavey	CPPg++13.3.0	Success	4,000
Jul 25, 2026 19:15	Kevin Heavey	CPPg++13.3.0	Success	4,004
Jul 25, 2026 19:15	Kevin Heavey	CPPg++13.3.0	Success	4,012
Jul 25, 2026 19:14	Kevin Heavey	CPPg++13.3.0	Success	4,003
Jul 25, 2026 18:56	Kevin Heavey	CPPg++13.3.0	Success	4,038
Jul 25, 2026 18:45	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 18:45	Kevin Heavey	CPPg++13.3.0	Success	4,002
Jul 25, 2026 18:42	Kevin Heavey	CPPg++13.3.0	Success	4,066
Jul 25, 2026 18:42	Kevin Heavey	CPPg++13.3.0	Success	4,114
Jul 25, 2026 18:42	Kevin Heavey	CPPg++13.3.0	Success	4,238
Jul 25, 2026 18:42	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 18:42	Kevin Heavey	CPPg++13.3.0	Success	4,003
Jul 25, 2026 18:42	Kevin Heavey	CPPg++13.3.0	Success	4,011
Jul 25, 2026 18:08	Kevin Heavey	CPPg++13.3.0	Success	4,741
Jul 25, 2026 18:08	Kevin Heavey	CPPg++13.3.0	Success	4,742
Jul 25, 2026 18:08	Kevin Heavey	CPPg++13.3.0	Success	4,004
Jul 25, 2026 18:08	Kevin Heavey	CPPg++13.3.0	Success	4,002
Jul 25, 2026 17:53	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 17:53	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 17:53	Kevin Heavey	CPPg++13.3.0	Success	4,008
Jul 25, 2026 17:51	Kevin Heavey	CPPg++13.3.0	Success	4,034
Jul 25, 2026 17:49	Kevin Heavey	CPPg++13.3.0	Success	4,032
Jul 25, 2026 17:03	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 17:03	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 17:03	Kevin Heavey	CPPg++13.3.0	Success	4,007
Jul 25, 2026 17:02	Kevin Heavey	CPPg++13.3.0	Success	3,989+0.63 RP
Jul 25, 2026 17:02	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 17:02	Kevin Heavey	CPPg++13.3.0	Success	3,996
Jul 25, 2026 17:02	Kevin Heavey	CPPg++13.3.0	Success	4,010
Jul 25, 2026 17:02	Kevin Heavey	CPPg++13.3.0	Success	4,054
Jul 25, 2026 16:51	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 16:51	Kevin Heavey	CPPg++13.3.0	Success	4,011
Jul 25, 2026 16:50	Kevin Heavey	CPPg++13.3.0	Success	3,998
Jul 25, 2026 16:49	Kevin Heavey	CPPg++13.3.0	Success	4,008
Jul 25, 2026 16:49	Kevin Heavey	CPPg++13.3.0	Success	3,990
Jul 25, 2026 16:49	Kevin Heavey	CPPg++13.3.0	Success	4,052
Jul 25, 2026 16:49	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 16:49	Kevin Heavey	CPPg++13.3.0	Success	3,994
Jul 25, 2026 16:40	Kevin Heavey	CPPg++13.3.0	Success	4,040
Jul 25, 2026 16:40	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 16:40	Kevin Heavey	CPPg++13.3.0	Success	4,002
Jul 25, 2026 16:40	Kevin Heavey	CPPg++13.3.0	Success	4,027
Jul 25, 2026 16:40	Kevin Heavey	CPPg++13.3.0	Success	4,017
Jul 25, 2026 16:22	Kevin Heavey	CPPg++13.3.0	Success	4,007
Jul 25, 2026 16:22	Kevin Heavey	CPPg++13.3.0	Success	4,011
Jul 25, 2026 16:21	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 16:20	Kevin Heavey	CPPg++13.3.0	Success	4,004
Jul 25, 2026 16:20	Kevin Heavey	CPPg++13.3.0	Success	3,991
Jul 25, 2026 16:18	Kevin Heavey	CPPg++13.3.0	Success	4,008
Jul 25, 2026 16:18	Kevin Heavey	CPPg++13.3.0	Success	3,998
Jul 25, 2026 16:12	Kevin Heavey	CPPg++13.3.0	Success	4,015
Jul 25, 2026 16:00	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 15:51	Kevin Heavey	CPPg++13.3.0	Success	4,008
Jul 25, 2026 15:49	Kevin Heavey	CPPg++13.3.0	Success	4,028
Jul 25, 2026 15:49	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 15:48	Kevin Heavey	CPPg++13.3.0	Success	4,015
Jul 25, 2026 15:40	Kevin Heavey	CPPg++13.3.0	Success	4,008
Jul 25, 2026 15:40	Kevin Heavey	CPPg++13.3.0	Success	3,997
Jul 25, 2026 15:25	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 15:24	Kevin Heavey	CPPg++13.3.0	Success	4,003
Jul 25, 2026 15:23	Kevin Heavey	CPPg++13.3.0	Success	3,990+2.51 RP
Jul 25, 2026 15:23	Kevin Heavey	CPPg++13.3.0	Success	4,000
Jul 25, 2026 15:23	Kevin Heavey	CPPg++13.3.0	Success	4,003
Jul 25, 2026 15:21	Kevin Heavey	CPPg++13.3.0	Success	3,994+1.25 RP
Jul 25, 2026 15:21	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 15:19	Kevin Heavey	CPPg++13.3.0	Success	4,093
Jul 25, 2026 15:17	Kevin Heavey	CPPg++13.3.0	Success	4,012
Jul 25, 2026 15:16	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 15:15	Kevin Heavey	CPPg++13.3.0	Success	3,997
Jul 25, 2026 15:07	Kevin Heavey	CPPg++13.3.0	Success	4,051
Jul 25, 2026 15:07	Kevin Heavey	CPPg++13.3.0	Success	4,015
Jul 25, 2026 15:02	Kevin Heavey	CPPg++13.3.0	Error
Jul 25, 2026 15:02	Kevin Heavey	CPPg++13.3.0	Error
Jul 25, 2026 14:52	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 14:52	Kevin Heavey	CPPg++13.3.0	Success	4,010
Jul 25, 2026 14:52	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 14:52	Kevin Heavey	CPPg++13.3.0	Success	4,000
Jul 25, 2026 14:44	Kevin Heavey	CPPg++13.3.0	Success	4,010
Jul 25, 2026 14:19	Kevin Heavey	CPPg++13.3.0	Success	3,999
Jul 25, 2026 14:19	Kevin Heavey	CPPg++13.3.0	Success	4,012
Jul 25, 2026 14:19	Kevin Heavey	CPPg++13.3.0	Success	4,015
Jul 25, 2026 14:18	Kevin Heavey	CPPg++13.3.0	Success	4,000
Jul 25, 2026 14:18	Kevin Heavey	CPPg++13.3.0	Success	4,006
Jul 25, 2026 14:18	Kevin Heavey	CPPg++13.3.0	Success	4,005
Jul 25, 2026 14:18	Kevin Heavey	CPPg++13.3.0	Success	4,009
Jul 25, 2026 14:17	Kevin Heavey	CPPclang++20.1.2	Success	4,011
Jul 25, 2026 14:17	Kevin Heavey	CPPg++13.3.0	Success	3,996+1.25 RP

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