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 6, 2026 22:20	Victor Mercklé	CPPg++14.2.0	Success	4,266
Jul 6, 2026 22:10	Victor Mercklé	CPPg++14.2.0	Success	8,086
Jul 6, 2026 21:35	Victor Mercklé	CPPg++14.2.0	Success	7,958
Jul 6, 2026 21:25	Victor Mercklé	CPPg++14.2.0	Success	7,560
Jul 6, 2026 21:02	Victor Mercklé	CPPg++14.2.0	Success	4,685
Jul 6, 2026 20:54	Victor Mercklé	CPPg++14.2.0	Success	4,123+23.30 RP
Jul 6, 2026 20:43	Victor Mercklé	CPPg++14.2.0	Success	4,193
Jul 6, 2026 20:38	Adam Folwarczny	CPPclang++20.1.2	Success	4,002
Jul 6, 2026 20:37	Adam Folwarczny	CPPg++14.2.0	Success	3,982+5.04 RP
Jul 6, 2026 20:37	Adam Folwarczny	CPPg++14.2.0	Success	4,012
Jul 6, 2026 20:32	Victor Mercklé	CPPg++14.2.0	Success	4,210
Jul 6, 2026 20:28	Adam Folwarczny	CPPg++14.2.0	Success	3,990+73.77 RP
Jul 6, 2026 20:25	Victor Mercklé	CPPg++14.2.0	Success	4,201
Jul 6, 2026 20:23	Adam Folwarczny	CPPg++14.2.0	Success	4,121
Jul 6, 2026 20:21	Adam Folwarczny	CPPg++14.2.0	Success	4,115
Jul 6, 2026 20:17	Adam Folwarczny	CPPg++14.2.0	Error
Jul 6, 2026 20:12	Adam Folwarczny	CPPg++14.2.0	Success	4,111+1.77 RP
Jul 6, 2026 20:08	Adam Folwarczny	CPPg++14.2.0	Success	4,121
Jul 6, 2026 20:07	Adam Folwarczny	CPPclang++20.1.2	Success	4,114
Jul 6, 2026 20:05	Adam Folwarczny	CPPg++14.2.0	Success	4,114+29.19 RP
Jul 6, 2026 15:36	Victor Mercklé	CPPg++14.2.0	Success	4,201
Jul 6, 2026 15:25	Victor Mercklé	CPPg++14.2.0	Success	4,214
Jul 6, 2026 15:20	Victor Mercklé	CPPg++14.2.0	Success	4,215
Jul 6, 2026 15:14	Victor Mercklé	CPPg++14.2.0	Success	4,346
Jul 6, 2026 15:05	Victor Mercklé	CPPg++14.2.0	Success	4,226
Jul 6, 2026 14:53	Victor Mercklé	CPPg++14.2.0	Success	4,227
Jul 6, 2026 01:31	Victor Mercklé	CPPg++14.2.0	Success	12,128
Jul 6, 2026 01:22	Victor Mercklé	CPPg++14.2.0	Success	12,013
Jul 6, 2026 01:11	Victor Mercklé	CPPg++14.2.0	Success	4,206
Jul 6, 2026 00:59	Victor Mercklé	CPPg++14.2.0	Success	4,241
Jul 5, 2026 21:44	JhnW	CPPg++14.2.0	Success	5,155
Jul 5, 2026 21:32	JhnW	CPPg++10.5.0	Success	5,342
Jul 5, 2026 21:27	JhnW	CPPg++10.5.0	Success	5,341
Jul 5, 2026 16:29	JhnW	CPPg++14.2.0	Success	5,005+1'998.00 RP
Jul 4, 2026 14:38	dmhockey2005-prog	CPPg++10.5.0	Success	23,563
Jul 4, 2026 14:33	dmhockey2005-prog	CPPg++10.5.0	Success	52,495
Jul 4, 2026 14:29	dmhockey2005-prog	CPPg++10.5.0	Success	5,637
Jul 4, 2026 14:25	dmhockey2005-prog	CPPg++10.5.0	Success	5,611+906.17 RP
Jul 4, 2026 04:20	zielaj	CPPclang++20.1.2	Success	3,964+119.25 RP
Jul 3, 2026 11:11	Pavel Samygin	CPPg++13.3.0	Success	4,445+5.05 RP
Jul 3, 2026 10:03	dmhockey2005-prog	CPPg++10.5.0	Success	11,415+876.04 RP
Jul 3, 2026 09:08	Victor Mercklé	CPPg++14.2.0	Success	4,184
Jul 3, 2026 09:03	Victor Mercklé	CPPg++14.2.0	Success	4,185
Jul 3, 2026 08:58	Victor Mercklé	CPPg++14.2.0	Success	4,188
Jul 3, 2026 08:53	Victor Mercklé	CPPg++14.2.0	Success	4,198
Jul 3, 2026 08:48	Victor Mercklé	CPPg++14.2.0	Success	4,198
Jul 3, 2026 08:42	Victor Mercklé	CPPg++14.2.0	Success	4,207
Jul 3, 2026 08:36	Victor Mercklé	CPPg++14.2.0	Success	4,315
Jul 3, 2026 05:34	Victor Mercklé	CPPg++14.2.0	Success	8,075
Jul 3, 2026 05:24	Victor Mercklé	CPPg++14.2.0	Success	4,399
Jul 3, 2026 05:16	Victor Mercklé	CPPg++14.2.0	Success	4,264
Jul 3, 2026 04:17	Victor Mercklé	CPPg++14.2.0	Success	4,197
Jul 3, 2026 02:41	f0xeri	CPPg++10.5.0	Success	51,880+192.75 RP
Jul 3, 2026 01:41	Victor Mercklé	CPPg++14.2.0	Success	16,781
Jul 3, 2026 01:30	Victor Mercklé	CPPg++14.2.0	Success	8,083
Jul 3, 2026 01:22	Victor Mercklé	CPPg++14.2.0	Success	4,204
Jul 3, 2026 01:17	Victor Mercklé	CPPg++14.2.0	Success	4,196
Jul 3, 2026 01:06	Victor Mercklé	CPPg++14.2.0	Success	4,220
Jul 3, 2026 01:01	Victor Mercklé	CPPg++14.2.0	Success	4,311
Jul 3, 2026 00:56	Victor Mercklé	CPPg++14.2.0	Success	4,235
Jul 3, 2026 00:40	Victor Mercklé	CPPg++14.2.0	Success	4,206
Jul 3, 2026 00:35	Victor Mercklé	CPPg++14.2.0	Success	4,206
Jul 3, 2026 00:27	Victor Mercklé	CPPg++14.2.0	Success	4,202
Jul 3, 2026 00:22	Victor Mercklé	CPPg++14.2.0	Success	4,218
Jul 3, 2026 00:06	Victor Mercklé	CPPg++14.2.0	Success	4,196
Jul 2, 2026 23:50	Victor Mercklé	CPPg++14.2.0	Success	4,208
Jul 2, 2026 23:24	Ilya	CPPg++13.3.0	Error
Jul 2, 2026 23:06	Ilya	CPPg++13.3.0	Success	4,248
Jul 2, 2026 23:05	Ilya	CPPg++13.3.0	Success	4,243
Jul 2, 2026 23:04	Ilya	CPPg++13.3.0	Success	4,246
Jul 2, 2026 23:04	Ilya	CPPg++13.3.0	Error
Jul 2, 2026 23:00	Ilya	CPPg++13.3.0	Success	4,228
Jul 2, 2026 23:00	Ilya	CPPg++13.3.0	Success	4,238
Jul 2, 2026 22:59	Ilya	CPPg++13.3.0	Success	4,315
Jul 2, 2026 22:59	Ilya	CPPg++13.3.0	Success	4,220+0.56 RP
Jul 2, 2026 22:58	Ilya	CPPg++13.3.0	Success	4,313
Jul 2, 2026 22:58	Ilya	CPPg++13.3.0	Success	4,271
Jul 2, 2026 22:57	Ilya	CPPg++13.3.0	Success	4,221+6.16 RP
Jul 2, 2026 22:55	Ilya	CPPg++13.3.0	Success	4,241
Jul 2, 2026 22:40	Ilya	CPPg++13.3.0	Success	4,299
Jul 2, 2026 22:39	Victor Mercklé	CPPg++14.2.0	Success	4,193
Jul 2, 2026 22:25	Victor Mercklé	CPPg++14.2.0	Success	4,193
Jul 2, 2026 22:20	Victor Mercklé	CPPg++14.2.0	Success	4,194
Jul 2, 2026 22:05	Ilya	CPPg++13.3.0	Success	4,250
Jul 2, 2026 22:02	Ilya	CPPg++13.3.0	Success	4,245
Jul 2, 2026 22:01	Ilya	CPPg++13.3.0	Success	4,337
Jul 2, 2026 22:00	Ilya	CPPg++13.3.0	Success	5,151
Jul 2, 2026 21:59	Ilya	CPPg++13.3.0	Success	4,261
Jul 2, 2026 21:58	Ilya	CPPg++13.3.0	Success	4,271
Jul 2, 2026 21:58	Ilya	CPPg++13.3.0	Success	4,312
Jul 2, 2026 21:54	Ilya	CPPg++13.3.0	Success	4,306
Jul 2, 2026 21:53	Ilya	CPPg++13.3.0	Success	4,232+12.77 RP
Jul 2, 2026 21:42	Ilya	CPPg++13.3.0	Error
Jul 2, 2026 21:39	Ilya	CPPg++13.3.0	Success	4,355
Jul 2, 2026 21:36	Ilya	CPPg++13.3.0	Error
Jul 2, 2026 21:27	Ilya	CPPg++13.3.0	Success	4,270
Jul 2, 2026 21:24	Ilya	CPPg++13.3.0	Error
Jul 2, 2026 21:23	Ilya	CPPg++13.3.0	Success	4,278
Jul 2, 2026 21:22	Ilya	CPPg++13.3.0	Success	4,291
Jul 2, 2026 21:21	Ilya	CPPg++13.3.0	Error

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