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
Jun 1, 2026 18:54	Victor Mercklé	CPPg++14.2.0	Success	4,594
Jun 1, 2026 18:49	Victor Mercklé	CPPg++14.2.0	Success	4,794
Jun 1, 2026 18:44	Victor Mercklé	CPPg++14.2.0	Success	4,530
Jun 1, 2026 18:39	Ilya	CPPg++12.4.0	Error
Jun 1, 2026 18:36	Ilya	CPPg++12.4.0	Success	4,457
Jun 1, 2026 18:35	Victor Mercklé	CPPg++14.2.0	Success	4,530+0.49 RP
Jun 1, 2026 18:28	Ilya	CPPg++12.4.0	Success	4,307
Jun 1, 2026 18:26	Victor Mercklé	CPPg++14.2.0	Success	4,550
Jun 1, 2026 18:24	Ilya	CPPg++12.4.0	Success	4,304
Jun 1, 2026 18:23	Ilya	CPPg++12.4.0	Success	4,288+9.75 RP
Jun 1, 2026 18:21	Victor Mercklé	CPPg++14.2.0	Success	4,531+9.22 RP
Jun 1, 2026 18:16	Victor Mercklé	CPPg++14.2.0	Success	4,550+22.47 RP
Jun 1, 2026 18:11	Victor Mercklé	CPPg++14.2.0	Success	4,756
Jun 1, 2026 18:10	Ilya	CPPg++12.4.0	Success	4,311
Jun 1, 2026 18:06	Victor Mercklé	CPPg++14.2.0	Success	4,597+233.58 RP
Jun 1, 2026 18:01	Ilya	CPPg++12.4.0	Success	4,308
Jun 1, 2026 18:01	Victor Mercklé	CPPg++14.2.0	Success	5,442
Jun 1, 2026 17:59	Ilya	CPPg++12.4.0	Success	4,306+1.08 RP
Jun 1, 2026 17:59	Ilya	CPPg++14.2.0	Success	4,319
Jun 1, 2026 17:56	Victor Mercklé	CPPg++14.2.0	Success	5,159
Jun 1, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	5,155
Jun 1, 2026 17:51	Ilya	CPPg++14.2.0	Success	4,312
Jun 1, 2026 17:46	Victor Mercklé	CPPg++14.2.0	Success	5,150+7.89 RP
Jun 1, 2026 17:45	Ilya	CPPg++14.2.0	Success	4,308+1.08 RP
Jun 1, 2026 17:44	Ilya	CPPg++13.3.0	Success	4,315
Jun 1, 2026 17:41	Victor Mercklé	CPPg++14.2.0	Success	5,204
Jun 1, 2026 17:36	Victor Mercklé	CPPg++14.2.0	Success	5,580
Jun 1, 2026 17:31	Victor Mercklé	CPPg++14.2.0	Success	5,171+5.97 RP
Jun 1, 2026 17:28	Ilya	CPPg++13.3.0	Success	4,323
Jun 1, 2026 17:26	Ilya	CPPg++13.3.0	Success	4,324
Jun 1, 2026 17:22	Ilya	CPPg++13.3.0	Success	4,312
Jun 1, 2026 17:20	Ilya	CPPg++13.3.0	Success	4,461
Jun 1, 2026 17:18	Ilya	CPPg++13.3.0	Success	4,325
Jun 1, 2026 17:16	Ilya	CPPg++13.3.0	Success	4,319
Jun 1, 2026 17:10	Ilya	CPPg++13.3.0	Success	4,319
Jun 1, 2026 16:50	Ilya	CPPg++13.3.0	Success	4,322
Jun 1, 2026 16:44	Ilya	CPPg++13.3.0	Success	4,387
Jun 1, 2026 16:41	Ilya	CPPg++13.3.0	Success	4,475
Jun 1, 2026 16:30	Ilya	CPPg++13.3.0	Success	4,315
Jun 1, 2026 16:13	Ilya	CPPg++13.3.0	Success	5,230
Jun 1, 2026 15:59	Ilya	CPPclang++20.1.2	Success	4,572
Jun 1, 2026 15:59	Ilya	CPPg++13.3.0	Success	4,310+6.98 RP
Jun 1, 2026 15:57	Ilya	CPPg++10.5.0	Success	4,323+56.89 RP
Jun 1, 2026 15:53	Ilya	CPPg++10.5.0	Success	4,432+18.68 RP
Jun 1, 2026 15:47	Ilya	CPPg++10.5.0	Success	4,488
Jun 1, 2026 15:35	Ilya	CPPg++10.5.0	Success	4,469+120.34 RP
Jun 1, 2026 15:26	Ilya	CPPg++10.5.0	Success	4,723+12.48 RP
Jun 1, 2026 15:04	Ilya	CPPg++10.5.0	Success	5,446
Jun 1, 2026 15:02	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 15:00	Ilya	CPPg++10.5.0	Success	5,092
Jun 1, 2026 14:55	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 14:52	Ilya	CPPg++10.5.0	Success	4,887
Jun 1, 2026 14:50	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 14:32	Ilya	CPPg++10.5.0	Success	5,170
Jun 1, 2026 14:26	Ilya	CPPg++10.5.0	Success	4,751+142.50 RP
Jun 1, 2026 14:22	Ilya	CPPg++10.5.0	Success	5,104
Jun 1, 2026 14:10	Ilya	CPPg++10.5.0	Success	6,025
Jun 1, 2026 14:04	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 13:58	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 13:44	Ilya	CPPg++10.5.0	Success	5,350
Jun 1, 2026 13:25	Ilya	CPPg++10.5.0	Success	5,143
Jun 1, 2026 13:14	Ilya	CPPg++13.3.0	Success	5,117
Jun 1, 2026 13:06	Ilya	CPPg++13.3.0	Success	5,117
Jun 1, 2026 12:58	Ilya	CPPg++10.5.0	Success	5,242
Jun 1, 2026 12:36	Ilya	CPPg++13.3.0	Success	5,119
Jun 1, 2026 12:35	Ilya	CPPclang++20.1.2	Success	5,261
Jun 1, 2026 12:30	Ilya	CPPg++10.5.0	Success	5,096+0.38 RP
Jun 1, 2026 12:24	Ilya	CPPg++10.5.0	Success	5,327
Jun 1, 2026 12:23	Ilya	CPPg++13.3.0	Success	5,680
Jun 1, 2026 12:21	Ilya	CPPg++13.3.0	Success	5,097+18.68 RP
Jun 1, 2026 11:38	Ilya	CPPg++10.5.0	Success	5,146+28.28 RP
Jun 1, 2026 11:32	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 11:00	Ilya	CPPg++10.5.0	Success	5,222+49.30 RP
Jun 1, 2026 10:51	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 10:50	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 10:25	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:47	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:44	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:34	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:32	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:31	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:11	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:09	Ilya	CPPg++10.5.0	Error
Jun 1, 2026 09:06	Ilya	CPPg++10.5.0	Error
May 31, 2026 23:09	Ilya	CPPg++10.5.0	Success	5,360+1'656.70 RP
May 31, 2026 23:05	Ilya	CPPg++10.5.0	Error
May 31, 2026 22:39	Ilya	CPPg++10.5.0	Error
May 31, 2026 21:30	Ilya	CPPg++10.5.0	Success	47,854+8.57 RP
May 31, 2026 21:26	Ilya	CPPg++10.5.0	Success	49,900+200.40 RP
May 22, 2026 08:48	M-Rochat	CPPg++13.3.0	Success	4,254
May 22, 2026 08:45	M-Rochat	CPPg++13.3.0	Success	4,254
May 22, 2026 08:42	M-Rochat	CPPg++14.2.0	Success	4,254
May 22, 2026 08:40	M-Rochat	CPPg++13.3.0	Success	4,401
May 22, 2026 08:38	M-Rochat	CPPg++13.3.0	Success	4,257
May 22, 2026 08:36	M-Rochat	CPPg++13.3.0	Success	4,257
May 22, 2026 08:34	M-Rochat	CPPg++13.3.0	Success	4,255
May 22, 2026 08:32	M-Rochat	CPPg++13.3.0	Success	4,252+1.66 RP
May 22, 2026 08:29	M-Rochat	CPPg++13.3.0	Success	4,259
May 22, 2026 08:26	M-Rochat	CPPg++13.3.0	Success	4,255
May 22, 2026 08:24	M-Rochat	CPPg++13.3.0	Success	4,255+2.76 RP

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