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 24, 2026 10:52	olliecrow	CPPg++13.3.0	Success	4,519
Apr 24, 2026 09:54	Charles Cabergs	CPPg++13.3.0	Success	5,298+41.12 RP
Apr 24, 2026 08:51	Charles Cabergs	CPPg++13.3.0	Success	24,425
Apr 24, 2026 06:51	Charles Cabergs	CPPg++13.3.0	Success	5,459
Apr 24, 2026 06:07	olliecrow	CPPg++13.3.0	Success	4,382
Apr 24, 2026 06:04	olliecrow	CPPg++13.3.0	Success	4,371
Apr 24, 2026 05:33	Charles Cabergs	CPPg++13.3.0	Success	25,320
Apr 24, 2026 02:12	olliecrow	CSHARP9.0.15	Success	7,040
Apr 24, 2026 02:03	olliecrow	CPPg++13.3.0	Success	4,389
Apr 24, 2026 02:00	olliecrow	CPPg++13.3.0	Success	4,370
Apr 24, 2026 01:58	olliecrow	CPPg++13.3.0	Error
Apr 23, 2026 22:35	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,555
Apr 23, 2026 22:26	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,740
Apr 23, 2026 21:48	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,478
Apr 23, 2026 21:35	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,491
Apr 23, 2026 20:46	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,662
Apr 23, 2026 16:13	Charles Cabergs	CPPg++13.3.0	Success	5,482
Apr 23, 2026 12:01	Charles Cabergs	CPPg++13.3.0	Success	5,481
Apr 23, 2026 08:55	Charles Cabergs	CPPclang++20.1.2	Success	5,521
Apr 23, 2026 03:54	Charles Cabergs	CPPg++14.2.0	Success	5,465
Apr 23, 2026 01:57	Charles Cabergs	CPPg++13.3.0	Success	5,584
Apr 23, 2026 01:16	olliecrow	CPPg++13.3.0	Success	4,383
Apr 23, 2026 01:10	olliecrow	CPPg++13.3.0	Success	4,367
Apr 23, 2026 01:05	olliecrow	CPPg++13.3.0	Success	4,372
Apr 22, 2026 23:56	Charles Cabergs	CPPg++13.3.0	Success	5,493
Apr 22, 2026 22:43	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	44,006
Apr 22, 2026 22:39	Uladzislau Nestsiaruk	CPPclang++20.1.2	Error
Apr 22, 2026 22:12	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,639
Apr 22, 2026 22:07	Uladzislau Nestsiaruk	CPPclang++20.1.2	Success	5,634
Apr 22, 2026 21:56	olliecrow	CPPg++13.3.0	Success	4,380
Apr 22, 2026 21:56	olliecrow	CPPg++13.3.0	Success	4,388
Apr 22, 2026 20:46	Dominique Garmier	CPPg++10.5.0	Success	5,110
Apr 22, 2026 20:34	Charles Cabergs	CPPg++13.3.0	Success	5,466
Apr 22, 2026 15:51	olliecrow	CPPg++13.3.0	Success	4,373
Apr 22, 2026 15:45	olliecrow	CPPg++13.3.0	Success	4,377
Apr 22, 2026 14:24	Dominique Garmier	CPPg++13.3.0	Success	4,517
Apr 22, 2026 12:44	olliecrow	CSHARP9.0.15	Success	50,441
Apr 22, 2026 12:30	Ben	CPPclang++20.1.2	Error
Apr 22, 2026 12:29	Ben	CPPg++14.2.0	Success	17,293
Apr 22, 2026 12:28	Ben	CPPclang++20.1.2	Success	4,718
Apr 22, 2026 12:16	Dominique Garmier	CPPg++13.3.0	Success	4,501
Apr 22, 2026 12:12	Dominique Garmier	CPPg++13.3.0	Success	4,524
Apr 22, 2026 04:23	olliecrow	ZIG0.15.1	Success	4,649
Apr 22, 2026 04:21	olliecrow	ZIG0.14.0	Success	4,474
Apr 22, 2026 04:20	olliecrow	ZIG0.15.1	Success	4,464
Apr 21, 2026 21:28	olliecrow	CPPg++13.3.0	Success	4,389
Apr 21, 2026 21:06	Charles Cabergs	CPPg++13.3.0	Success	5,509
Apr 21, 2026 20:58	Ben	CPPg++14.2.0	Success	10,934
Apr 21, 2026 20:57	Ben	CPPg++14.2.0	Success	17,048
Apr 21, 2026 19:51	olliecrow	CPPg++13.3.0	Success	4,385
Apr 21, 2026 18:05	Charles Cabergs	CPPg++13.3.0	Success	5,493
Apr 21, 2026 17:29	Ben	CPPg++14.2.0	Success	10,864
Apr 21, 2026 09:31	Charles Cabergs	CPPg++13.3.0	Success	5,463
Apr 21, 2026 05:41	Charles Cabergs	CPPg++13.3.0	Success	5,467
Apr 21, 2026 05:39	olliecrow	CPPg++10.5.0	Success	4,414
Apr 21, 2026 03:48	Charles Cabergs	CPPg++13.3.0	Success	5,445
Apr 21, 2026 00:18	Taylor Dettling	RUSTrust-1.95.0	Success	5,403
Apr 21, 2026 00:16	Taylor Dettling	RUSTrust-1.95.0	Success	10,786
Apr 21, 2026 00:12	Taylor Dettling	RUSTrust-1.95.0	Success	5,362
Apr 21, 2026 00:11	Taylor Dettling	RUSTrust-1.95.0	Success	5,349+147.75 RP
Apr 21, 2026 00:09	Taylor Dettling	RUSTrust-1.95.0	Success	6,000
Apr 21, 2026 00:08	Taylor Dettling	RUSTrust-1.95.0	Success	5,826
Apr 21, 2026 00:06	Taylor Dettling	RUSTrust-1.95.0	Success	11,503
Apr 21, 2026 00:04	Taylor Dettling	RUSTrust-1.95.0	Success	5,808+1'721.76 RP
Apr 20, 2026 19:01	Charles Cabergs	CPPg++13.3.0	Success	5,473
Apr 20, 2026 16:18	Oleg Skinderev	CPPg++14.2.0	Success	5,021
Apr 20, 2026 16:07	olliecrow	CPPg++13.3.0	Success	4,517
Apr 20, 2026 15:17	Ben	CPPclang++20.1.2	Success	4,703+1'208.28 RP
Apr 20, 2026 14:01	Ben	CPPclang++20.1.2	Success	11,094
Apr 20, 2026 14:01	Ben	CPPg++14.2.0	Success	10,893+335.00 RP
Apr 20, 2026 13:59	Ben	CPPclang++20.1.2	Success	17,324
Apr 20, 2026 13:59	Ben	CPPg++14.2.0	Success	17,152+583.02 RP
Apr 20, 2026 13:42	olliecrow	ZIG0.14.0	Success	4,666
Apr 20, 2026 13:40	olliecrow	GOgo1.26.1	Error
Apr 19, 2026 09:22	Charles Cabergs	CPPg++13.3.0	Success	5,416+84.89 RP
Apr 19, 2026 07:30	olliecrow	CPPg++13.3.0	Error
Apr 19, 2026 06:18	Charles Cabergs	CPPg++13.3.0	Success	5,837
Apr 19, 2026 03:57	olliecrow	CPPg++13.3.0	Success	4,447
Apr 19, 2026 02:02	Charles Cabergs	CPPg++13.3.0	Success	5,702
Apr 18, 2026 23:42	Charles Cabergs	CPPg++13.3.0	Success	5,685
Apr 18, 2026 17:10	Charles Cabergs	CPPg++13.3.0	Success	5,677+3.41 RP
Apr 18, 2026 14:59	Charles Cabergs	CPPg++13.3.0	Success	5,700
Apr 18, 2026 14:28	olliecrow	CSHARP9.0.14	Success	49,624
Apr 18, 2026 12:43	Charles Cabergs	CPPg++13.3.0	Success	5,688+3.09 RP
Apr 18, 2026 10:32	Charles Cabergs	CPPg++13.3.0	Success	5,698+36.79 RP
Apr 18, 2026 09:44	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,509
Apr 18, 2026 09:36	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	6,364
Apr 18, 2026 08:26	Charles Cabergs	CPPg++13.3.0	Success	5,826
Apr 18, 2026 00:59	olliecrow	CSHARP9.0.14	Error
Apr 18, 2026 00:09	olliecrow	CSHARP9.0.14	Success	57,748
Apr 18, 2026 00:07	olliecrow	CSHARP9.0.14	Error
Apr 18, 2026 00:01	olliecrow	CSHARP9.0.14	Success	50,350
Apr 17, 2026 21:06	Charles Cabergs	CPPg++13.3.0	Success	5,820+823.12 RP
Apr 17, 2026 20:10	Charles Cabergs	CPPg++13.3.0	Success	122,389
Apr 17, 2026 17:29	Charles Cabergs	CPPg++13.3.0	Success	11,172+895.09 RP
Apr 17, 2026 11:53	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,447
Apr 17, 2026 11:44	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,433+9.77 RP
Apr 17, 2026 11:44	Uladzislau Nestsiaruk	CPPclang++18.1.3	Error
Apr 17, 2026 09:51	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,462+3.01 RP
Apr 17, 2026 09:44	Uladzislau Nestsiaruk	CPPclang++18.1.3	Success	5,471+1.00 RP

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