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
Sep 27, 2026 09:54	Kevin Heavey	RUSTrust-1.95.0	Error
Sep 27, 2026 09:53	Kevin Heavey	RUSTrust-1.95.0	Error
Sep 27, 2026 09:47	Kevin Heavey	CPPg++13.3.0	Success	3,937
Sep 27, 2026 09:47	Kevin Heavey	RUSTrust-1.95.0	Success	3,935
Sep 27, 2026 09:11	Kevin Heavey	RUSTrust-1.95.0	Success	3,931
Sep 26, 2026 17:31	Kevin Heavey	CSHARP9.0.18	Success	3,936+189.37 RP
Sep 26, 2026 17:29	Kevin Heavey	GOgo1.26.2	Success	3,953+143.09 RP
Sep 26, 2026 17:28	Kevin Heavey	ZIG0.15.1	Success	3,936+49.37 RP
Sep 26, 2026 17:27	Kevin Heavey	RUSTrust-1.95.0	Success	3,929+42.67 RP
Sep 23, 2026 17:25	Matthias Görgens	CPPclang++19.1.1	Success	5,308+1'883.95 RP
Sep 23, 2026 11:46	Kevin Heavey	CPPg++13.3.0	Success	3,934
Sep 23, 2026 11:45	Kevin Heavey	CPPg++13.3.0	Success	3,925+2.60 RP
Sep 23, 2026 11:44	Kevin Heavey	CPPg++13.3.0	Success	3,927+3.89 RP
Sep 23, 2026 11:43	Kevin Heavey	CPPg++13.3.0	Success	3,931+24.99 RP
Sep 23, 2026 11:42	Kevin Heavey	CPPg++13.3.0	Error
Sep 23, 2026 11:41	Kevin Heavey	CPPg++13.3.0	Error
Sep 23, 2026 11:39	Kevin Heavey	CPPg++13.3.0	Success	4,003
Sep 23, 2026 11:34	Kevin Heavey	CPPg++13.3.0	Success	3,995
Sep 23, 2026 09:14	Kevin Heavey	CPPg++13.3.0	Success	3,997
Sep 23, 2026 09:14	Kevin Heavey	CPPg++13.3.0	Success	3,991
Sep 23, 2026 09:14	Kevin Heavey	CPPg++13.3.0	Success	3,997
Sep 22, 2026 17:18	parastrom	RUSTrust-1.95.0	Success	4,390+60.61 RP
Sep 20, 2026 18:01	C21	CPPg++14.2.0	Success	4,885+167.03 RP
Sep 20, 2026 16:58	C21	CPPclang++20.1.2	Success	5,950
Sep 20, 2026 12:03	C21	CPPclang++20.1.2	Error
Sep 20, 2026 08:37	C21	CPPg++10.5.0	Success	5,319+563.40 RP
Sep 18, 2026 15:35	Andrew Epstein	CPPg++14.2.0	Success	712,985
Sep 18, 2026 15:28	Andrew Epstein	CPPg++14.2.0	Success	331,176
Sep 18, 2026 02:40	Andrew Epstein	CSHARP9.0.15	Success	4,253+45.01 RP
Sep 18, 2026 02:34	Andrew Epstein	CSHARP9.0.15	Error
Sep 18, 2026 02:30	Andrew Epstein	GOgo1.26.2	Success	4,190+33.14 RP
Sep 18, 2026 02:24	Andrew Epstein	CPPg++14.2.0	Success	4,121+78.63 RP
Sep 17, 2026 18:21	Victor Mercklé	CPPg++14.2.0	Success	4,115
Sep 17, 2026 18:17	Victor Mercklé	CPPg++14.2.0	Success	4,060
Sep 17, 2026 18:05	Victor Mercklé	CPPg++14.2.0	Success	4,102
Sep 17, 2026 17:56	Victor Mercklé	CPPg++14.2.0	Success	4,112
Sep 17, 2026 17:53	Victor Mercklé	CPPg++14.2.0	Success	4,102
Sep 17, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	4,503
Sep 17, 2026 17:46	Victor Mercklé	CPPg++14.2.0	Success	4,119
Sep 17, 2026 17:41	Victor Mercklé	CPPg++14.2.0	Success	4,139
Sep 17, 2026 17:20	Victor Mercklé	CPPg++14.2.0	Success	4,166
Sep 17, 2026 17:15	Victor Mercklé	CPPg++14.2.0	Success	4,283
Sep 17, 2026 17:10	Victor Mercklé	CPPg++14.2.0	Success	4,236
Sep 17, 2026 17:07	Victor Mercklé	CPPg++14.2.0	Success	4,933
Sep 17, 2026 17:03	Victor Mercklé	CPPg++14.2.0	Success	4,125
Sep 17, 2026 16:57	Victor Mercklé	CPPg++14.2.0	Success	4,112
Sep 17, 2026 16:52	Victor Mercklé	CPPg++14.2.0	Success	4,347
Sep 17, 2026 16:43	Victor Mercklé	CPPg++14.2.0	Success	4,159
Sep 17, 2026 16:27	Victor Mercklé	CPPg++14.2.0	Success	4,196
Sep 17, 2026 15:59	Victor Mercklé	CPPg++14.2.0	Success	4,226
Sep 17, 2026 15:54	Victor Mercklé	CPPg++14.2.0	Success	4,121
Sep 17, 2026 15:50	Victor Mercklé	CPPg++14.2.0	Success	4,115
Sep 17, 2026 15:44	Victor Mercklé	CPPg++14.2.0	Success	4,096
Sep 17, 2026 15:29	Victor Mercklé	CPPg++14.2.0	Success	4,105
Sep 17, 2026 15:23	Victor Mercklé	CPPg++14.2.0	Success	4,124
Sep 17, 2026 15:13	Victor Mercklé	CPPg++14.2.0	Success	4,119
Sep 17, 2026 15:09	Victor Mercklé	CPPg++14.2.0	Success	4,276
Sep 17, 2026 15:00	Victor Mercklé	CPPg++14.2.0	Success	4,140
Sep 17, 2026 13:16	Victor Mercklé	CPPg++14.2.0	Success	4,117
Sep 17, 2026 13:12	Victor Mercklé	CPPg++14.2.0	Success	4,111
Sep 17, 2026 13:05	Victor Mercklé	CPPg++14.2.0	Success	4,632
Sep 17, 2026 12:48	Victor Mercklé	CPPg++14.2.0	Success	4,055
Sep 17, 2026 12:44	Victor Mercklé	CPPg++14.2.0	Success	4,100
Sep 16, 2026 18:38	Victor Mercklé	CPPg++14.2.0	Success	4,135
Sep 16, 2026 18:33	Victor Mercklé	CPPg++14.2.0	Success	4,037
Sep 16, 2026 18:07	Victor Mercklé	CPPg++14.2.0	Success	4,037
Sep 16, 2026 17:49	Victor Mercklé	CPPg++14.2.0	Success	4,034
Sep 16, 2026 17:45	Victor Mercklé	CPPg++14.2.0	Success	4,010+8.06 RP
Sep 16, 2026 17:15	Victor Mercklé	CPPg++14.2.0	Success	4,116
Sep 16, 2026 17:07	Victor Mercklé	CPPg++14.2.0	Success	4,144
Sep 16, 2026 16:52	Victor Mercklé	CPPg++14.2.0	Success	4,141
Sep 16, 2026 16:47	Victor Mercklé	CPPg++14.2.0	Success	4,168
Sep 16, 2026 16:20	Victor Mercklé	CPPg++14.2.0	Success	4,059
Sep 16, 2026 16:04	Victor Mercklé	CPPg++14.2.0	Success	4,073
Sep 16, 2026 00:36	Josu San Martin	CPPclang++18.1.3	Success	4,103
Sep 15, 2026 22:30	Josu San Martin	CPPclang++18.1.3	Success	4,246
Sep 15, 2026 22:25	Josu San Martin	CPPclang++18.1.3	Success	4,101
Sep 15, 2026 03:44	Josu San Martin	CPPclang++20.1.2	Success	4,102
Sep 14, 2026 16:44	Victor Mercklé	CPPg++14.2.0	Success	4,114
Sep 14, 2026 16:42	Victor Mercklé	CPPg++14.2.0	Success	4,123
Sep 14, 2026 16:36	Victor Mercklé	CPPg++14.2.0	Success	4,130
Sep 14, 2026 16:34	Victor Mercklé	CPPg++14.2.0	Success	4,523
Sep 14, 2026 16:29	Victor Mercklé	CPPg++14.2.0	Success	4,054
Sep 14, 2026 16:27	Victor Mercklé	CPPg++14.2.0	Success	4,083
Sep 14, 2026 16:26	Victor Mercklé	CPPg++14.2.0	Success	4,056
Sep 14, 2026 16:23	Victor Mercklé	CPPg++14.2.0	Error
Sep 14, 2026 16:20	Victor Mercklé	CPPg++14.2.0	Success	4,132
Sep 14, 2026 16:14	Victor Mercklé	CPPg++14.2.0	Success	4,264
Sep 14, 2026 16:10	Victor Mercklé	CPPg++14.2.0	Success	4,468
Sep 14, 2026 16:03	Victor Mercklé	CPPg++14.2.0	Success	4,143
Sep 14, 2026 16:01	Victor Mercklé	CPPg++14.2.0	Success	4,127
Sep 14, 2026 15:58	Victor Mercklé	CPPg++14.2.0	Success	4,127
Sep 14, 2026 15:49	Victor Mercklé	CPPg++14.2.0	Success	4,127
Sep 14, 2026 15:46	Victor Mercklé	CPPg++14.2.0	Success	4,126
Sep 14, 2026 15:44	Victor Mercklé	CPPg++14.2.0	Success	4,079
Sep 14, 2026 15:09	Victor Mercklé	CPPg++14.2.0	Success	4,065
Sep 14, 2026 15:03	Victor Mercklé	CPPg++14.2.0	Success	4,320
Sep 14, 2026 14:57	Victor Mercklé	CPPg++14.2.0	Success	4,373
Sep 14, 2026 14:52	Victor Mercklé	CPPg++14.2.0	Success	4,126
Sep 14, 2026 14:50	Victor Mercklé	CPPg++14.2.0	Success	4,147

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