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
May 17, 2026 23:41	M-Rochat	CPPg++13.3.0	Success	4,353
May 17, 2026 23:07	M-Rochat	CPPg++13.3.0	Success	4,292
May 17, 2026 14:50	M-Rochat	CPPclang++20.1.2	Success	4,540
May 17, 2026 14:50	M-Rochat	CPPg++13.3.0	Success	4,278
May 17, 2026 12:23	M-Rochat	CPPg++10.5.0	Success	4,283
May 17, 2026 12:19	M-Rochat	CPPg++13.3.0	Success	4,260+0.55 RP
May 17, 2026 11:28	M-Rochat	CPPg++13.3.0	Success	4,412
May 17, 2026 11:28	M-Rochat	CPPg++13.3.0	Success	4,291
May 17, 2026 11:28	M-Rochat	CPPg++13.3.0	Success	4,409
May 17, 2026 10:49	M-Rochat	CPPg++13.3.0	Success	4,274
May 17, 2026 10:45	M-Rochat	CPPg++13.3.0	Success	4,261+1.10 RP
May 17, 2026 10:07	M-Rochat	CPPg++13.3.0	Success	4,359
May 17, 2026 10:07	M-Rochat	CPPg++13.3.0	Success	4,340
May 17, 2026 10:07	M-Rochat	CPPg++13.3.0	Success	4,398
May 17, 2026 10:04	M-Rochat	CPPg++13.3.0	Success	4,292
May 17, 2026 10:04	M-Rochat	CPPg++13.3.0	Success	4,412
May 17, 2026 10:04	M-Rochat	CPPg++13.3.0	Success	4,419
May 17, 2026 09:17	M-Rochat	CPPg++14.2.0	Success	4,279
May 17, 2026 09:17	M-Rochat	CPPclang++20.1.2	Success	4,345
May 17, 2026 09:11	M-Rochat	CPPg++13.3.0	Success	4,562
May 17, 2026 08:57	M-Rochat	CPPg++13.3.0	Success	4,263
May 17, 2026 08:56	M-Rochat	CPPg++10.5.0	Success	4,271
May 17, 2026 08:30	M-Rochat	CPPg++13.3.0	Success	4,273
May 17, 2026 05:59	M-Rochat	CPPg++13.3.0	Success	4,280
May 17, 2026 04:41	M-Rochat	CPPg++14.2.0	Success	4,283
May 17, 2026 04:41	M-Rochat	CPPclang++20.1.2	Success	4,343
May 17, 2026 04:41	M-Rochat	CPPclang++20.1.2	Success	4,342
May 17, 2026 03:57	M-Rochat	CPPg++13.3.0	Success	4,545
May 17, 2026 03:56	M-Rochat	CPPg++13.3.0	Success	4,263+19.64 RP
May 17, 2026 03:56	M-Rochat	CPPg++13.3.0	Success	4,416
May 17, 2026 03:56	M-Rochat	CPPg++13.3.0	Success	4,298
May 17, 2026 03:42	M-Rochat	CPPclang++18.1.3	Success	4,380
May 17, 2026 03:42	M-Rochat	CPPg++13.3.0	Success	4,299+0.54 RP
May 17, 2026 03:42	M-Rochat	CPPg++14.2.0	Success	4,314
May 17, 2026 03:42	M-Rochat	CPPg++14.2.0	Success	4,300+9.16 RP
May 17, 2026 03:41	M-Rochat	CPPg++14.2.0	Success	4,317+333.48 RP
May 17, 2026 02:32	M-Rochat	CPPg++14.2.0	Success	5,080
May 17, 2026 01:25	M-Rochat	CPPclang++20.1.2	Success	5,426
May 17, 2026 00:32	M-Rochat	CPPg++14.2.0	Success	5,067
May 16, 2026 23:50	M-Rochat	CPPclang++20.1.2	Success	6,670
May 16, 2026 23:50	M-Rochat	CPPg++13.3.0	Success	6,670
May 16, 2026 23:50	M-Rochat	CPPg++14.2.0	Success	6,676
May 16, 2026 19:30	M-Rochat	CPPg++14.2.0	Success	5,268
May 16, 2026 18:18	M-Rochat	CPPclang++20.1.2	Success	5,161
May 16, 2026 17:51	M-Rochat	CPPg++10.5.0	Success	5,217
May 16, 2026 17:50	M-Rochat	CPPclang++20.1.2	Success	5,075
May 16, 2026 17:50	M-Rochat	CPPg++14.2.0	Success	5,043+2.75 RP
May 16, 2026 16:49	M-Rochat	CPPg++14.2.0	Success	5,069
May 16, 2026 16:44	M-Rochat	CPPg++14.2.0	Success	5,050+5.47 RP
May 16, 2026 15:57	M-Rochat	CPPg++13.3.0	Success	5,064+68.15 RP
May 16, 2026 15:53	SODIUM IS NOT A CAT	CPPg++10.5.0	Error
May 16, 2026 15:51	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,990
May 16, 2026 15:44	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,363
May 16, 2026 15:43	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,817
May 16, 2026 15:38	M-Rochat	CPPclang++20.1.2	Success	5,604
May 16, 2026 15:37	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,904
May 16, 2026 15:37	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,053
May 16, 2026 15:35	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,787+9.99 RP
May 16, 2026 15:34	M-Rochat	CPPg++13.3.0	Success	5,453
May 16, 2026 15:33	M-Rochat	CPPclang++20.1.2	Success	5,617
May 16, 2026 15:17	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,500
May 16, 2026 15:16	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,810+1.73 RP
May 16, 2026 15:09	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,938
May 16, 2026 15:03	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,934
May 16, 2026 15:00	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,814
May 16, 2026 14:40	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,020
May 16, 2026 14:39	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,484
May 16, 2026 14:39	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,814+6.02 RP
May 16, 2026 14:38	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,503
May 16, 2026 10:14	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	4,828+77.63 RP
May 16, 2026 10:08	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,279
May 16, 2026 09:49	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,222
May 16, 2026 09:34	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,170
May 16, 2026 08:05	M-Rochat	CPPg++13.3.0	Success	5,385
May 16, 2026 07:36	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,139
May 16, 2026 07:26	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,055
May 16, 2026 07:15	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,016+13.42 RP
May 16, 2026 07:14	M-Rochat	CPPclang++20.1.2	Success	5,369
May 16, 2026 07:12	SODIUM IS NOT A CAT	CPPg++10.5.0	Error
May 16, 2026 07:07	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,119
May 16, 2026 07:01	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,081
May 16, 2026 06:58	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,483
May 16, 2026 06:40	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,050+24.78 RP
May 16, 2026 06:36	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,331
May 16, 2026 06:36	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,114+3.44 RP
May 16, 2026 06:05	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,123+154.39 RP
May 16, 2026 05:47	SODIUM IS NOT A CAT	CPPg++10.5.0	Error
May 16, 2026 05:42	SODIUM IS NOT A CAT	CPPg++10.5.0	Error
May 16, 2026 05:34	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	16,982
May 16, 2026 05:05	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	5,563+1'597.33 RP
May 16, 2026 04:54	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	52,757
May 16, 2026 04:54	SODIUM IS NOT A CAT	CPPg++10.5.0	Success	49,934+200.26 RP
May 15, 2026 19:20	M-Rochat	CPPg++13.3.0	Success	5,245+70.70 RP
May 15, 2026 19:19	M-Rochat	CPPg++13.3.0	Success	5,447+50.48 RP
May 15, 2026 19:19	M-Rochat	CPPclang++20.1.2	Success	5,601+1'785.40 RP
May 15, 2026 00:56	zielaj	CPPclang++20.1.2	Success	3,924+14.24 RP
May 15, 2026 00:30	zielaj	CPPclang++18.1.3	Success	3,935+235.28 RP
May 11, 2026 13:53	Victor Mercklé	CPPg++14.2.0	Success	5,187+19.86 RP
May 11, 2026 13:31	Victor Mercklé	CPPg++14.2.0	Success	10,698
May 10, 2026 22:32	Franek Korta	CPPg++10.5.0	Success	4,184+2.28 RP

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