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
Jul 25, 2026 11:09	Kevin Heavey	CPPg++13.3.0	Success	4,114
Jul 25, 2026 11:08	Kevin Heavey	CPPg++13.3.0	Success	4,105
Jul 25, 2026 11:08	Kevin Heavey	CPPg++13.3.0	Success	4,106
Jul 25, 2026 11:08	Kevin Heavey	CPPg++13.3.0	Success	4,115
Jul 25, 2026 11:07	Kevin Heavey	CPPg++13.3.0	Success	4,093+1.19 RP
Jul 25, 2026 11:07	Kevin Heavey	CPPg++13.3.0	Success	4,102
Jul 25, 2026 11:06	Kevin Heavey	CPPg++13.3.0	Success	4,168
Jul 25, 2026 11:05	Kevin Heavey	CPPg++13.3.0	Success	4,105
Jul 25, 2026 11:05	Kevin Heavey	CPPg++13.3.0	Success	4,128
Jul 25, 2026 11:05	Kevin Heavey	CPPg++13.3.0	Success	4,168
Jul 25, 2026 11:02	Kevin Heavey	CPPg++13.3.0	Success	4,124
Jul 25, 2026 11:02	Kevin Heavey	CPPg++13.3.0	Success	4,113
Jul 25, 2026 11:02	Kevin Heavey	CPPg++13.3.0	Success	4,124
Jul 25, 2026 11:02	Kevin Heavey	CPPg++13.3.0	Success	4,131
Jul 25, 2026 11:02	Kevin Heavey	CPPg++13.3.0	Success	4,124
Jul 25, 2026 11:02	Kevin Heavey	CPPg++13.3.0	Success	4,123
Jul 25, 2026 03:54	Kevin Heavey	CPPg++13.3.0	Success	4,138
Jul 25, 2026 03:53	Kevin Heavey	CPPg++13.3.0	Success	4,095
Jul 25, 2026 03:52	Kevin Heavey	CPPg++13.3.0	Success	4,103
Jul 25, 2026 03:51	Kevin Heavey	CPPg++13.3.0	Success	4,097
Jul 25, 2026 03:49	Kevin Heavey	CPPg++13.3.0	Success	4,100
Jul 25, 2026 03:49	Kevin Heavey	CPPg++13.3.0	Success	4,102
Jul 25, 2026 03:48	Kevin Heavey	CPPg++14.2.0	Success	4,119
Jul 25, 2026 03:45	Kevin Heavey	CPPg++13.3.0	Success	4,114
Jul 25, 2026 03:43	Kevin Heavey	CPPg++13.3.0	Success	4,095+2.38 RP
Jul 25, 2026 03:42	Kevin Heavey	CPPg++13.3.0	Success	4,115
Jul 25, 2026 03:41	Kevin Heavey	CPPg++13.3.0	Success	4,112
Jul 25, 2026 03:41	Kevin Heavey	CPPg++13.3.0	Success	4,111
Jul 25, 2026 03:40	Kevin Heavey	CPPg++13.3.0	Success	4,107
Jul 25, 2026 03:40	Kevin Heavey	CPPg++13.3.0	Success	4,117
Jul 25, 2026 03:40	Kevin Heavey	CPPg++13.3.0	Success	4,105
Jul 25, 2026 03:39	Kevin Heavey	CPPg++13.3.0	Success	4,101
Jul 25, 2026 03:39	Kevin Heavey	CPPg++13.3.0	Success	4,099+4.75 RP
Jul 25, 2026 03:37	Kevin Heavey	CPPg++13.3.0	Success	4,175
Jul 25, 2026 03:36	Kevin Heavey	CPPg++13.3.0	Success	4,122
Jul 25, 2026 03:36	Kevin Heavey	CPPg++13.3.0	Success	4,107+15.90 RP
Jul 25, 2026 03:36	Kevin Heavey	CPPg++13.3.0	Success	4,145
Jul 25, 2026 03:34	Kevin Heavey	CPPg++13.3.0	Success	4,134+5.84 RP
Jul 25, 2026 03:33	Kevin Heavey	CPPg++13.3.0	Success	4,144+1.16 RP
Jul 25, 2026 03:33	Kevin Heavey	CPPg++13.3.0	Success	4,173
Jul 25, 2026 03:32	Kevin Heavey	CPPg++13.3.0	Success	4,151
Jul 25, 2026 03:32	Kevin Heavey	CPPg++13.3.0	Success	4,146+2.32 RP
Jul 25, 2026 03:31	Kevin Heavey	CPPg++13.3.0	Success	4,151
Jul 25, 2026 03:31	Kevin Heavey	CPPg++13.3.0	Success	4,161
Jul 25, 2026 03:30	Kevin Heavey	CPPg++13.3.0	Success	4,150+3.48 RP
Jul 25, 2026 03:29	Kevin Heavey	CPPg++13.3.0	Success	4,217
Jul 25, 2026 03:29	Kevin Heavey	CPPg++13.3.0	Success	4,156+22.37 RP
Jul 25, 2026 03:28	Kevin Heavey	CPPg++13.3.0	Success	4,253
Jul 25, 2026 03:28	Kevin Heavey	CPPg++13.3.0	Success	4,195+47.89 RP
Jul 25, 2026 03:16	Kevin Heavey	CPPg++13.3.0	Success	6,120
Jul 25, 2026 03:12	Kevin Heavey	CPPg++13.3.0	Success	5,381
Jul 25, 2026 02:47	Kevin Heavey	CPPg++13.3.0	Error
Jul 25, 2026 02:46	Kevin Heavey	CPPg++13.3.0	Error
Jul 25, 2026 01:43	Kevin Heavey	CPPg++13.3.0	Success	4,720
Jul 25, 2026 01:40	Kevin Heavey	CPPg++13.3.0	Success	4,317
Jul 25, 2026 01:38	Kevin Heavey	CPPg++13.3.0	Success	4,313
Jul 25, 2026 01:35	Kevin Heavey	CPPg++13.3.0	Success	5,047
Jul 25, 2026 01:34	Kevin Heavey	CPPg++13.3.0	Success	4,291
Jul 25, 2026 01:31	Kevin Heavey	CPPg++13.3.0	Success	4,323
Jul 25, 2026 01:29	Kevin Heavey	CPPg++13.3.0	Success	4,295
Jul 25, 2026 01:27	Kevin Heavey	CPPg++13.3.0	Success	4,290
Jul 25, 2026 01:24	Kevin Heavey	CPPg++13.3.0	Success	4,281+13.02 RP
Jul 25, 2026 01:13	Kevin Heavey	CPPg++13.3.0	Success	4,392
Jul 25, 2026 01:12	Kevin Heavey	CPPg++13.3.0	Success	4,320
Jul 25, 2026 01:11	Kevin Heavey	CPPg++13.3.0	Success	4,310
Jul 25, 2026 01:11	Kevin Heavey	CPPg++13.3.0	Success	4,454
Jul 25, 2026 00:23	Kevin Heavey	CPPg++13.3.0	Success	4,305+111.96 RP
Jul 25, 2026 00:23	Kevin Heavey	CPPclang++20.1.2	Success	4,523+2'210.92 RP
Jul 21, 2026 19:42	JhnW	CPPg++14.2.0	Error
Jul 21, 2026 19:36	JhnW	CPPg++14.2.0	Success	5,018
Jul 21, 2026 19:32	JhnW	CPPg++14.2.0	Success	5,172
Jul 21, 2026 19:26	JhnW	CPPg++14.2.0	Success	5,477
Jul 21, 2026 19:16	JhnW	CPPg++14.2.0	Success	5,136
Jul 19, 2026 22:35	Sergey Serebryakov	CPPg++14.2.0	Success	4,089
Jul 19, 2026 22:33	Sergey Serebryakov	CPPclang++20.1.2	Success	4,250
Jul 19, 2026 22:33	Sergey Serebryakov	CPPg++10.5.0	Success	4,088
Jul 19, 2026 22:30	Sergey Serebryakov	CPPg++10.5.0	Success	4,088+153.66 RP
Jul 19, 2026 22:29	Sergey Serebryakov	CPPg++10.5.0	Success	4,596
Jul 19, 2026 22:20	Sergey Serebryakov	CPPg++14.2.0	Success	4,605
Jul 19, 2026 22:17	Sergey Serebryakov	CPPg++10.5.0	Success	4,592
Jul 15, 2026 21:07	Adam Folwarczny	CPPg++14.2.0	Success	3,986+5.00 RP
Jul 13, 2026 19:35	Victor Mercklé	CPPg++14.2.0	Success	4,119
Jul 13, 2026 19:30	Victor Mercklé	CPPg++14.2.0	Success	4,880
Jul 13, 2026 19:25	Victor Mercklé	CPPg++14.2.0	Success	5,068
Jul 13, 2026 19:20	Victor Mercklé	CPPg++14.2.0	Success	4,068
Jul 12, 2026 18:50	Ilya	CPPg++13.3.0	Success	4,232
Jul 12, 2026 18:49	Ilya	CPPg++13.3.0	Success	4,229
Jul 12, 2026 18:48	Ilya	CPPg++13.3.0	Success	7,855
Jul 12, 2026 18:48	Ilya	CPPg++13.3.0	Success	8,927
Jul 12, 2026 18:45	Ilya	CPPg++13.3.0	Success	4,217+1.69 RP
Jul 12, 2026 18:44	Ilya	CPPg++13.3.0	Success	7,827
Jul 12, 2026 18:44	Ilya	CPPg++13.3.0	Success	5,044
Jul 12, 2026 18:43	Ilya	CPPg++13.3.0	Success	5,370
Jul 12, 2026 18:41	Ilya	CPPg++13.3.0	Success	5,069
Jul 12, 2026 18:41	Ilya	CPPg++13.3.0	Success	5,070
Jul 12, 2026 18:40	Ilya	CPPg++13.3.0	Success	5,078
Jul 12, 2026 14:00	Ilya	CPPg++13.3.0	Success	4,245
Jul 12, 2026 13:59	Ilya	CPPg++13.3.0	Success	4,234
Jul 12, 2026 13:57	Ilya	CPPg++13.3.0	Success	4,225
Jul 11, 2026 23:05	Ilya	CPPg++13.3.0	Success	4,290

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