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
Dec 22, 2025 23:15	hunaphu	CPPg++13.3.0	Success	4,474
Dec 22, 2025 23:13	hunaphu	CPPg++13.3.0	Success	4,470
Dec 22, 2025 22:43	Josu San Martin	CPPg++13.3.0	Success	5,893
Dec 22, 2025 22:07	hunaphu	CPPg++13.3.0	Success	4,468+0.50 RP
Dec 22, 2025 22:01	hunaphu	CPPg++13.3.0	Success	4,471
Dec 22, 2025 22:00	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:52	hunaphu	CPPg++13.3.0	Success	4,469+274.16 RP
Dec 22, 2025 21:50	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:50	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:49	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:46	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:44	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:44	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:41	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:33	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:30	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:24	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:12	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:08	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:08	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:06	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:06	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:05	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 21:03	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:43	hunaphu	CPPg++13.3.0	Success	5,093+81.66 RP
Dec 22, 2025 20:42	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:40	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:40	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:37	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:28	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:27	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:26	hunaphu	CPPg++13.3.0	Success	5,314+1'881.82 RP
Dec 22, 2025 20:21	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:19	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:19	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:15	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:02	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 20:01	hunaphu	CPPg++13.3.0	Error
Dec 22, 2025 19:50	jhallgreen	CPPg++13.3.0	Success	5,587
Dec 22, 2025 19:44	jhallgreen	CPPg++13.3.0	Error
Dec 22, 2025 19:42	jhallgreen	CPPg++13.3.0	Success	4,473
Dec 22, 2025 19:41	jhallgreen	CPPg++13.3.0	Error
Dec 22, 2025 19:39	jhallgreen	CPPg++13.3.0	Success	4,467
Dec 22, 2025 19:33	jhallgreen	CPPg++13.3.0	Error
Dec 22, 2025 19:25	Josu San Martin	CPPg++13.3.0	Success	6,016
Dec 22, 2025 18:14	Josu San Martin	RUSTrust-1.92.0	Success	5,833
Dec 22, 2025 17:58	Josu San Martin	RUSTrust-1.92.0	Success	5,531
Dec 22, 2025 16:09	Josu San Martin	RUSTrust-1.92.0	Success	5,513
Dec 22, 2025 15:22	Josu San Martin	RUSTrust-1.92.0	Error
Dec 22, 2025 15:20	Josu San Martin	RUSTrust-1.92.0	Success	5,457+138.45 RP
Dec 22, 2025 14:50	Josu San Martin	RUSTrust-1.92.0	Error
Dec 22, 2025 04:30	Josu San Martin	RUSTrust-1.92.0	Success	6,246
Dec 22, 2025 03:48	Josu San Martin	RUSTrust-1.92.0	Success	5,903+1'515.84 RP
Dec 22, 2025 03:33	jhallgreen	CPPg++13.3.0	Success	5,758
Dec 22, 2025 03:32	Josu San Martin	RUSTrust-1.92.0	Success	56,113+178.21 RP
Dec 22, 2025 00:56	jhallgreen	RUSTrust-1.92.0	Success	4,530
Dec 22, 2025 00:54	jhallgreen	RUSTrust-1.92.0	Success	4,536
Dec 22, 2025 00:52	jhallgreen	CPPg++13.3.0	Success	5,531
Dec 21, 2025 23:46	jhallgreen	CPPg++13.3.0	Success	5,771
Dec 21, 2025 23:45	jhallgreen	CPPg++13.3.0	Success	6,115
Dec 21, 2025 23:43	jhallgreen	CPPg++13.3.0	Success	5,772
Dec 21, 2025 23:40	jhallgreen	CPPg++13.3.0	Success	5,780
Dec 21, 2025 23:38	jhallgreen	CPPg++13.3.0	Success	6,226
Dec 21, 2025 23:23	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,742
Dec 21, 2025 23:23	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,724
Dec 21, 2025 23:23	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,723
Dec 21, 2025 23:22	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,704
Dec 21, 2025 23:16	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,506
Dec 21, 2025 23:16	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,381+4.68 RP
Dec 21, 2025 23:15	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,400
Dec 21, 2025 23:15	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,437
Dec 21, 2025 23:15	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,484
Dec 21, 2025 23:14	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,412
Dec 21, 2025 23:13	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,081
Dec 21, 2025 23:13	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,863
Dec 21, 2025 23:11	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,760
Dec 21, 2025 23:11	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,608
Dec 21, 2025 23:11	jhallgreen	CPPg++13.3.0	Success	4,474
Dec 21, 2025 23:10	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,456
Dec 21, 2025 23:10	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,419
Dec 21, 2025 23:09	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,467
Dec 21, 2025 23:07	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,416
Dec 21, 2025 23:07	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,424
Dec 21, 2025 23:06	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,390+3.63 RP
Dec 21, 2025 23:05	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,524
Dec 21, 2025 22:59	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,473
Dec 21, 2025 22:59	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,474
Dec 21, 2025 22:59	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,584
Dec 21, 2025 22:57	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,752
Dec 21, 2025 22:56	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,675
Dec 21, 2025 22:56	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,503
Dec 21, 2025 22:56	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,429
Dec 21, 2025 22:55	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,405
Dec 21, 2025 22:54	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,400
Dec 21, 2025 22:54	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,397+3.10 RP
Dec 21, 2025 22:54	jhallgreen	CPPg++13.3.0	Error
Dec 21, 2025 22:54	jhallgreen	CPPg++13.3.0	Error
Dec 21, 2025 22:54	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,459
Dec 21, 2025 22:53	Ahmed Mhedhbi	CPPg++13.3.0	Success	4,473
Dec 21, 2025 22:48	jhallgreen	CPPg++13.3.0	Success	6,736

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