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.

Date	Author	Language	Status	Score
Apr 10, 2026 16:18	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:15	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:14	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:12	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:12	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:11	Oleg Skinderev	CPPg++13.3.0	Success	50,780
Apr 10, 2026 16:10	Oleg Skinderev	CPPg++13.3.0	Success	50,763+193.63 RP
Apr 10, 2026 16:07	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:06	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:01	Oleg Skinderev	CPPg++13.3.0	Success	2,969,342+3.37 RP
Apr 9, 2026 17:35	olliecrow	GOgo1.26.2	Success	4,826
Apr 9, 2026 16:26	olliecrow	ZIG0.14.0	Success	4,367+74.57 RP
Apr 9, 2026 16:10	olliecrow	CSHARP9.0.14	Success	13,750
Apr 9, 2026 09:28	olliecrow	GOgo1.26.2	Success	4,831
Apr 8, 2026 16:38	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,631
Apr 8, 2026 16:37	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,616
Apr 8, 2026 16:27	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,598
Apr 8, 2026 16:27	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	6,003
Apr 8, 2026 16:24	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,787
Apr 8, 2026 09:03	olliecrow	RUSTrust-1.94.0	Success	4,345
Apr 7, 2026 09:24	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,607
Apr 7, 2026 09:23	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	8,517
Apr 7, 2026 09:21	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	8,462
Apr 7, 2026 09:18	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,668
Apr 7, 2026 09:16	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,631
Apr 7, 2026 09:06	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,614
Apr 7, 2026 08:57	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,627
Apr 7, 2026 08:52	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,614
Apr 7, 2026 08:46	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,626
Apr 7, 2026 08:46	Uladzislau Nestsiaruk	CPPg++13.3.0	Success	5,674
Apr 7, 2026 08:42	Uladzislau Nestsiaruk	CPPg++13.3.0	Success	5,666
Apr 7, 2026 08:41	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,598+6.36 RP
Apr 7, 2026 08:32	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,618+7.57 RP
Apr 7, 2026 08:18	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,655
Apr 7, 2026 08:12	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,642+22.33 RP
Apr 6, 2026 18:14	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,714+79.80 RP
Apr 6, 2026 18:09	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,987+760.62 RP
Apr 6, 2026 17:43	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	10,993+368.16 RP
Apr 6, 2026 13:35	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	19,545
Apr 6, 2026 13:34	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	19,120
Apr 6, 2026 13:27	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	18,467+4.82 RP
Apr 6, 2026 13:25	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	18,633+324.49 RP
Apr 6, 2026 13:16	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	47,128+208.87 RP
Apr 6, 2026 13:03	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	3,017,609+3.31 RP
Apr 6, 2026 12:44	olliecrow	RUSTrust-1.94.0	Success	4,377
Apr 6, 2026 12:44	olliecrow	RUSTrust-1.94.0	Success	4,369
Apr 6, 2026 12:43	olliecrow	RUSTrust-1.94.0	Success	4,355
Apr 3, 2026 23:45	Jasper Edbrooke	CPPclang++18.1.3	Success	4,872
Apr 3, 2026 23:43	Jasper Edbrooke	CPPclang++18.1.3	Success	5,281
Apr 3, 2026 23:39	Jasper Edbrooke	CPPclang++18.1.3	Success	4,758+38.59 RP
Apr 3, 2026 23:32	Jasper Edbrooke	CPPclang++18.1.3	Error
Apr 3, 2026 22:45	Jasper Edbrooke	CPPclang++18.1.3	Error
Apr 3, 2026 22:45	Jasper Edbrooke	CPPclang++18.1.3	Success	5,121
Apr 3, 2026 22:43	Jasper Edbrooke	CPPclang++18.1.3	Success	4,847+289.77 RP
Apr 3, 2026 21:32	Jasper Edbrooke	CPPclang++18.1.3	Success	5,639+77.87 RP
Apr 3, 2026 21:19	Jasper Edbrooke	CPPclang++18.1.3	Success	5,975
Apr 3, 2026 21:16	Jasper Edbrooke	CPPclang++18.1.3	Success	5,961
Apr 3, 2026 21:13	Jasper Edbrooke	CPPclang++18.1.3	Success	34,654
Apr 3, 2026 21:10	Jasper Edbrooke	CPPclang++18.1.3	Success	5,963
Apr 3, 2026 21:08	Jasper Edbrooke	CPPclang++18.1.3	Error
Apr 3, 2026 20:36	Jasper Edbrooke	CPPclang++18.1.3	Success	5,971
Apr 3, 2026 19:23	Jasper Edbrooke	CPPclang++18.1.3	Success	5,898+776.29 RP
Apr 3, 2026 18:56	Jasper Edbrooke	CPPclang++18.1.3	Success	10,879+7.87 RP
Apr 3, 2026 18:37	Jasper Edbrooke	CPPclang++18.1.3	Success	10,973+810.63 RP
Apr 3, 2026 18:22	Jasper Edbrooke	CPPclang++18.1.3	Success	99,311+97.37 RP
Apr 3, 2026 17:37	Jasper Edbrooke	CPPclang++18.1.3	Success	3,012,151+3.32 RP
Apr 2, 2026 17:00	syllex	CPPg++13.3.0	Success	5,724+1'129.82 RP
Apr 2, 2026 16:59	syllex	CPPg++13.3.0	Error
Apr 2, 2026 15:42	syllex	CPPg++13.3.0	Success	16,202+1.18 RP
Apr 2, 2026 07:10	olliecrow	RUSTrust-1.94.0	Success	4,441
Apr 2, 2026 07:06	olliecrow	RUSTrust-1.94.0	Success	4,432
Apr 2, 2026 07:03	olliecrow	RUSTrust-1.94.0	Success	4,419
Apr 2, 2026 06:29	olliecrow	CSHARP9.0.14	Error
Apr 1, 2026 20:17	syllex	CPPg++13.3.0	Success	16,233+355.16 RP
Apr 1, 2026 17:21	syllex	CPPg++13.3.0	Success	38,524
Apr 1, 2026 16:57	syllex	CPPg++13.3.0	Success	38,334+63.13 RP
Apr 1, 2026 04:24	olliecrow	CPPg++13.3.0	Error
Apr 1, 2026 04:22	olliecrow	CPPg++13.3.0	Error
Mar 31, 2026 19:45	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,283
Mar 31, 2026 19:44	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,300
Mar 31, 2026 19:42	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,288
Mar 31, 2026 19:41	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,283+3.22 RP
Mar 31, 2026 14:24	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,311
Mar 31, 2026 14:22	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,298
Mar 31, 2026 14:20	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,292+2.50 RP
Mar 31, 2026 00:55	Dominique Garmier	RUSTrust-1.94.1	Success	5,321
Mar 31, 2026 00:54	Dominique Garmier	RUSTrust-1.94.1	Success	5,338
Mar 30, 2026 21:00	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,299+2.84 RP
Mar 30, 2026 20:58	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,307+2.48 RP
Mar 30, 2026 20:58	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,325
Mar 30, 2026 20:54	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Error
Mar 30, 2026 20:43	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,431
Mar 30, 2026 20:40	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,314+1.42 RP
Mar 30, 2026 20:38	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	5,318+1'297.93 RP
Mar 30, 2026 20:37	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Error
Mar 30, 2026 20:35	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Success	17,168+350.29 RP
Mar 30, 2026 20:34	Mohamed Elmahdi Bendimerad	CPPg++13.3.0	Error
Mar 30, 2026 15:45	Dominique Garmier	RUSTrust-1.94.1	Success	4,600
Mar 30, 2026 15:44	Dominique Garmier	RUSTrust-1.94.1	Success	5,339
Mar 30, 2026 15:04	Dominique Garmier	RUSTrust-1.94.1	Success	4,603

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