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
Aug 15, 2025 01:17	Leon Zhao	CPPg++13.3.0	Success	5,304
Aug 15, 2025 00:41	Leon Zhao	CPPg++13.3.0	Success	5,399
Aug 15, 2025 00:31	Leon Zhao	CPPg++13.3.0	Success	5,598
Aug 15, 2025 00:28	Leon Zhao	CPPg++13.3.0	Success	5,285
Aug 15, 2025 00:18	Leon Zhao	CPPg++13.3.0	Success	5,324
Aug 15, 2025 00:14	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 23:56	Leon Zhao	CPPg++13.3.0	Success	5,283
Aug 14, 2025 23:55	Leon Zhao	CPPg++13.3.0	Success	5,291
Aug 14, 2025 23:54	Leon Zhao	CPPg++13.3.0	Success	8,222
Aug 14, 2025 23:06	Leon Zhao	CPPg++13.3.0	Success	5,395
Aug 14, 2025 23:02	Leon Zhao	CPPg++13.3.0	Success	5,369
Aug 14, 2025 23:01	Leon Zhao	CPPg++13.3.0	Success	5,359
Aug 14, 2025 23:00	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 23:00	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 22:57	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 22:56	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 22:49	Leon Zhao	CPPg++13.3.0	Success	5,290
Aug 14, 2025 22:46	Leon Zhao	CPPg++13.3.0	Success	5,335
Aug 14, 2025 22:42	Leon Zhao	CPPg++13.3.0	Success	5,329
Aug 14, 2025 22:35	Leon Zhao	CPPg++13.3.0	Success	5,318
Aug 14, 2025 21:45	Leon Zhao	CPPg++13.3.0	Success	5,335
Aug 14, 2025 21:42	Leon Zhao	CPPg++13.3.0	Success	5,327
Aug 14, 2025 21:42	Leon Zhao	CPPg++13.3.0	Success	5,392
Aug 14, 2025 21:41	Leon Zhao	CPPg++13.3.0	Success	5,408
Aug 14, 2025 21:37	Leon Zhao	CPPg++13.3.0	Success	5,290
Aug 14, 2025 21:35	Leon Zhao	CPPg++13.3.0	Success	5,286
Aug 14, 2025 21:32	Leon Zhao	CPPg++13.3.0	Success	5,277+7.51 RP
Aug 14, 2025 21:15	Leon Zhao	CPPg++13.3.0	Success	5,298+1.78 RP
Aug 14, 2025 21:15	Leon Zhao	CPPg++13.3.0	Success	5,331
Aug 14, 2025 21:13	Leon Zhao	CPPg++13.3.0	Success	5,324
Aug 14, 2025 21:08	Leon Zhao	CPPg++13.3.0	Success	5,303
Aug 14, 2025 21:08	Leon Zhao	CPPg++13.3.0	Success	5,390
Aug 14, 2025 21:07	Leon Zhao	CPPg++13.3.0	Success	5,379
Aug 14, 2025 21:06	Leon Zhao	CPPg++13.3.0	Success	5,585
Aug 14, 2025 20:47	Leon Zhao	CPPg++13.3.0	Success	5,585
Aug 14, 2025 20:44	Leon Zhao	CPPg++13.3.0	Success	5,583
Aug 14, 2025 20:43	Leon Zhao	CPPg++13.3.0	Success	5,628
Aug 14, 2025 20:40	Leon Zhao	CPPg++13.3.0	Success	5,303+28.71 RP
Aug 14, 2025 20:39	Leon Zhao	CPPg++13.3.0	Success	5,385+0.34 RP
Aug 14, 2025 20:36	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 20:34	Leon Zhao	CPPg++13.3.0	Success	5,629
Aug 14, 2025 20:30	Leon Zhao	CPPg++13.3.0	Success	5,386+13.01 RP
Aug 14, 2025 20:07	Leon Zhao	CPPg++13.3.0	Success	5,989
Aug 14, 2025 20:06	Leon Zhao	CPPg++13.3.0	Success	5,997
Aug 14, 2025 19:53	Leon Zhao	CPPg++13.3.0	Success	5,652
Aug 14, 2025 19:53	Leon Zhao	CPPg++13.3.0	Error
Aug 14, 2025 19:52	Leon Zhao	CPPg++13.3.0	Success	5,722
Aug 14, 2025 19:49	Leon Zhao	CPPg++13.3.0	Success	5,728
Aug 14, 2025 19:12	Leon Zhao	CPPg++13.3.0	Success	5,424+53.79 RP
Aug 14, 2025 18:30	Leon Zhao	CPPg++13.3.0	Success	5,587+25.89 RP
Aug 13, 2025 20:43	Leon Zhao	CPPg++13.3.0	Success	5,669+20.30 RP
Aug 13, 2025 19:50	Leon Zhao	CPPg++13.3.0	Success	5,753
Aug 13, 2025 18:21	Leon Zhao	CPPg++13.3.0	Success	5,891
Aug 13, 2025 16:51	Leon Zhao	CPPg++13.3.0	Success	5,844
Aug 13, 2025 16:20	Leon Zhao	CPPg++13.3.0	Success	5,735+615.77 RP
Aug 13, 2025 16:17	Leon Zhao	CPPg++13.3.0	Success	8,866+1'113.93 RP
Aug 13, 2025 00:10	Myles	CPPg++13.3.0	Success	4,463
Aug 13, 2025 00:04	Myles	CPPg++13.3.0	Success	2,972,948
Aug 12, 2025 03:32	Leon Zhao	CPPg++13.3.0	Success	715,504+13.98 RP
Jul 29, 2025 20:54	Aniruddha Deb	CPPg++13.3.0	Error
Jul 29, 2025 20:50	Aniruddha Deb	CPPg++13.3.0	Success	4,482
Jul 21, 2025 21:59	Valentin Kofman	CPPg++13.3.0	Success	4,446+6.56 RP
Jul 21, 2025 21:59	Valentin Kofman	CPPg++13.3.0	Error
Jul 21, 2025 21:42	Valentin Kofman	CPPg++13.3.0	Success	4,462
Jul 21, 2025 21:41	Valentin Kofman	CPPg++13.3.0	Success	4,650
Jul 21, 2025 21:35	Valentin Kofman	CPPg++13.3.0	Success	4,459
Jul 21, 2025 21:32	Valentin Kofman	CPPg++13.3.0	Success	5,101
Jul 21, 2025 21:31	Valentin Kofman	CPPg++13.3.0	Success	4,647
Jul 21, 2025 21:26	Valentin Kofman	CPPg++13.3.0	Success	4,461
Jul 19, 2025 21:37	Valentin Kofman	CPPg++13.3.0	Success	4,471
Jul 19, 2025 21:27	Valentin Kofman	CPPg++13.3.0	Success	4,469
Jul 19, 2025 21:27	Valentin Kofman	CPPg++13.3.0	Success	4,463
Jul 16, 2025 21:41	Valentin Kofman	CPPg++13.3.0	Success	4,647
Jul 16, 2025 21:37	Valentin Kofman	CPPg++13.3.0	Success	4,591
Jul 16, 2025 21:27	Valentin Kofman	CPPclang++18.1.3	Success	4,676
Jul 16, 2025 21:26	Valentin Kofman	CPPg++13.3.0	Success	4,474
Jul 16, 2025 21:23	Valentin Kofman	CPPg++13.3.0	Error
Jul 16, 2025 21:13	Valentin Kofman	CPPclang++18.1.3	Success	4,691
Jul 16, 2025 21:13	Valentin Kofman	CPPg++13.3.0	Success	4,469
Jul 16, 2025 21:12	Valentin Kofman	CPPg++13.3.0	Success	4,465
Jul 16, 2025 21:12	Valentin Kofman	CPPg++13.3.0	Success	4,472
Jul 16, 2025 21:11	Valentin Kofman	CPPg++13.3.0	Success	4,459+2.01 RP
Jul 16, 2025 21:07	Valentin Kofman	CPPg++13.3.0	Success	4,495
Jul 16, 2025 21:07	Valentin Kofman	CPPg++13.3.0	Success	4,487
Jul 16, 2025 20:31	Valentin Kofman	CPPg++13.3.0	Success	4,463+101.15 RP
Jul 16, 2025 20:29	Valentin Kofman	CPPg++13.3.0	Success	4,674+2.74 RP
Jul 16, 2025 20:27	Valentin Kofman	CPPg++13.3.0	Success	4,951
Jul 16, 2025 20:22	Valentin Kofman	CPPg++13.3.0	Success	4,722
Jul 16, 2025 20:17	Valentin Kofman	CPPg++13.3.0	Success	4,680+3.65 RP
Jul 16, 2025 14:55	Valentin Kofman	CPPg++13.3.0	Success	4,780
Jul 16, 2025 10:50	Valentin Kofman	CPPg++13.3.0	Success	5,127
Jul 16, 2025 08:07	Valentin Kofman	CPPclang++18.1.3	Success	4,828
Jul 16, 2025 08:01	Valentin Kofman	CPPg++13.3.0	Success	5,270
Jul 16, 2025 07:49	Valentin Kofman	CPPg++13.3.0	Success	4,688+30.06 RP
Jul 16, 2025 07:44	Valentin Kofman	CPPg++13.3.0	Success	4,794
Jul 16, 2025 07:43	Valentin Kofman	CPPg++13.3.0	Success	4,778
Jul 16, 2025 07:35	Valentin Kofman	CPPg++13.3.0	Success	4,755+0.44 RP
Jul 16, 2025 07:34	Valentin Kofman	CPPg++13.3.0	Success	4,756+7.49 RP
Jul 16, 2025 00:08	Steve Bronder	CPPg++13.3.0	Error
Jul 15, 2025 23:41	Valentin Kofman	CPPg++13.3.0	Success	5,079

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