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	1:20.1.2-0ubuntu1~24.04.2	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.
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	3.0.13-0ubuntu3.9	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
Mar 18, 2026 22:22	olliecrow	RUSTrust-1.94.0	Success	4,420
Mar 18, 2026 22:11	olliecrow	RUSTrust-1.94.0	Success	4,429
Mar 18, 2026 22:08	olliecrow	RUSTrust-1.94.0	Success	4,421
Mar 18, 2026 22:00	olliecrow	RUSTrust-1.94.0	Success	4,420
Mar 18, 2026 21:56	olliecrow	RUSTrust-1.94.0	Success	4,399+2.58 RP
Mar 18, 2026 21:54	olliecrow	RUSTrust-1.94.0	Success	4,426
Mar 18, 2026 21:36	Dominique Garmier	CPPg++13.3.0	Error
Mar 16, 2026 12:27	limanjun99	CPPg++13.3.0	Success	5,053
Mar 16, 2026 12:27	limanjun99	CPPg++13.3.0	Success	4,783
Mar 16, 2026 12:27	limanjun99	CPPg++13.3.0	Success	4,652
Mar 16, 2026 12:26	limanjun99	CPPg++13.3.0	Success	4,782
Mar 16, 2026 12:24	limanjun99	CPPg++13.3.0	Success	4,838
Mar 16, 2026 12:21	limanjun99	CPPg++13.3.0	Success	4,756
Mar 16, 2026 12:20	limanjun99	CPPg++13.3.0	Success	5,333
Mar 16, 2026 12:20	limanjun99	CPPg++13.3.0	Success	5,076
Mar 16, 2026 12:20	limanjun99	CPPg++13.3.0	Success	4,649+0.92 RP
Mar 16, 2026 12:18	limanjun99	CPPg++13.3.0	Success	4,655
Mar 16, 2026 12:17	limanjun99	CPPg++13.3.0	Success	5,271
Mar 16, 2026 12:17	limanjun99	CPPg++13.3.0	Success	5,155
Mar 16, 2026 12:15	limanjun99	CPPg++13.3.0	Success	4,790
Mar 16, 2026 12:14	limanjun99	CPPg++13.3.0	Success	4,854
Mar 16, 2026 12:14	limanjun99	CPPg++13.3.0	Success	4,961
Mar 16, 2026 12:13	limanjun99	CPPg++13.3.0	Success	4,839
Mar 16, 2026 12:13	limanjun99	CPPg++13.3.0	Success	4,845
Mar 16, 2026 12:12	limanjun99	CPPg++13.3.0	Success	4,651+68.04 RP
Mar 16, 2026 12:09	limanjun99	CPPg++13.3.0	Success	5,027
Mar 16, 2026 12:08	limanjun99	CPPg++13.3.0	Success	4,818
Mar 16, 2026 12:07	limanjun99	CPPg++13.3.0	Success	5,017
Mar 16, 2026 12:06	limanjun99	CPPg++13.3.0	Success	5,257
Mar 16, 2026 12:06	limanjun99	CPPg++13.3.0	Success	5,273
Mar 16, 2026 12:06	limanjun99	CPPg++13.3.0	Success	5,226
Mar 16, 2026 12:03	limanjun99	CPPg++13.3.0	Error
Mar 16, 2026 12:02	limanjun99	CPPg++13.3.0	Success	4,803+187.37 RP
Mar 16, 2026 11:57	limanjun99	CPPg++13.3.0	Error
Mar 16, 2026 11:57	limanjun99	CPPg++13.3.0	Error
Mar 16, 2026 11:56	limanjun99	CPPg++13.3.0	Error
Mar 16, 2026 11:54	limanjun99	CPPg++13.3.0	Error
Mar 15, 2026 23:43	Dominique Garmier	CPPg++13.3.0	Success	4,650
Mar 15, 2026 23:18	Dominique Garmier	CPPg++13.3.0	Success	5,327
Mar 15, 2026 21:25	Dominique Garmier	CPPg++13.3.0	Success	5,342
Mar 15, 2026 21:17	Dominique Garmier	CPPg++13.3.0	Success	4,820
Mar 15, 2026 21:16	Dominique Garmier	CPPg++13.3.0	Success	4,650+9.21 RP
Mar 15, 2026 21:16	Dominique Garmier	CPPg++13.3.0	Success	5,354
Mar 15, 2026 21:08	Dominique Garmier	CPPg++13.3.0	Success	4,670+245.23 RP
Mar 15, 2026 13:31	Dominique Garmier	CPPg++13.3.0	Success	5,276
Mar 15, 2026 13:30	Dominique Garmier	CPPg++13.3.0	Success	5,304
Mar 15, 2026 11:12	Dominique Garmier	CPPg++13.3.0	Success	5,285
Mar 15, 2026 07:39	kai824	CPPg++13.3.0	Error
Mar 15, 2026 07:38	kai824	CPPg++13.3.0	Success	2,970,183+3.37 RP
Mar 15, 2026 06:03	limanjun99	CPPg++13.3.0	Success	5,278+3.23 RP
Mar 15, 2026 06:03	limanjun99	CPPg++13.3.0	Success	5,288
Mar 15, 2026 06:03	limanjun99	CPPg++13.3.0	Success	5,287+2.86 RP
Mar 15, 2026 06:03	limanjun99	CPPg++13.3.0	Success	5,298
Mar 15, 2026 05:57	limanjun99	CPPg++13.3.0	Success	5,383
Mar 15, 2026 05:57	limanjun99	CPPg++13.3.0	Success	8,121
Mar 15, 2026 05:55	limanjun99	CPPg++13.3.0	Success	8,112
Mar 15, 2026 05:49	limanjun99	CPPg++13.3.0	Success	5,413
Mar 15, 2026 05:48	limanjun99	CPPg++13.3.0	Success	5,332
Mar 15, 2026 05:47	limanjun99	CPPg++13.3.0	Success	5,343
Mar 15, 2026 05:41	limanjun99	CPPg++13.3.0	Success	5,295+11.34 RP
Mar 15, 2026 05:39	limanjun99	CPPg++13.3.0	Success	5,327+7.37 RP
Mar 15, 2026 05:37	limanjun99	CPPg++13.3.0	Success	5,348+52.34 RP
Mar 15, 2026 05:13	limanjun99	CPPg++13.3.0	Success	5,596
Mar 15, 2026 05:09	limanjun99	CPPg++13.3.0	Success	5,502+27.01 RP
Mar 15, 2026 05:07	limanjun99	CPPg++13.3.0	Success	5,585+556.25 RP
Mar 15, 2026 05:05	limanjun99	CPPg++13.3.0	Success	8,102+1'234.26 RP
Mar 14, 2026 18:14	Dominique Garmier	CPPg++13.3.0	Error
Mar 14, 2026 12:51	Suhas Narreddy	CPPg++13.3.0	Success	2,970,169+3.37 RP
Mar 14, 2026 11:02	Dominique Garmier	CPPg++13.3.0	Success	5,275
Mar 14, 2026 06:16	olliecrow	CSHARP9.0.14	Success	14,449
Mar 14, 2026 06:14	olliecrow	CSHARP9.0.14	Success	13,174
Mar 14, 2026 05:57	olliecrow	CSHARP8.0.25	Success	16,503
Mar 14, 2026 05:54	olliecrow	CSHARP9.0.14	Success	15,389
Mar 14, 2026 05:51	olliecrow	CSHARP9.0.14	Success	14,338
Mar 14, 2026 05:43	olliecrow	CSHARP9.0.14	Success	14,382
Mar 14, 2026 05:40	olliecrow	CSHARP9.0.14	Success	14,450
Mar 13, 2026 21:06	olliecrow	CPPg++13.3.0	Success	4,344
Mar 13, 2026 21:02	olliecrow	CPPg++13.3.0	Success	4,342
Mar 13, 2026 16:26	Dominique Garmier	CPPg++13.3.0	Success	5,291
Mar 13, 2026 16:08	Dominique Garmier	CPPg++13.3.0	Success	5,317
Mar 13, 2026 14:55	Dominique Garmier	CPPg++13.3.0	Success	5,325
Mar 13, 2026 14:23	Dominique Garmier	CPPclang++18.1.3	Success	5,513
Mar 13, 2026 11:14	Dominique Garmier	CPPg++13.3.0	Success	5,274+101.73 RP
Mar 13, 2026 10:55	Dominique Garmier	CPPg++13.3.0	Success	5,573+1'794.37 RP
Mar 13, 2026 06:51	olliecrow	CPPg++13.3.0	Success	4,341
Mar 13, 2026 06:27	olliecrow	CPPg++13.3.0	Success	4,352
Mar 13, 2026 06:10	olliecrow	CPPg++13.3.0	Success	4,344
Mar 13, 2026 06:01	olliecrow	CPPg++13.3.0	Success	4,339+1.06 RP
Mar 13, 2026 05:41	olliecrow	CPPg++13.3.0	Success	4,349
Mar 13, 2026 05:34	olliecrow	CPPg++13.3.0	Success	4,371
Mar 13, 2026 05:30	olliecrow	CPPg++13.3.0	Success	4,350
Mar 13, 2026 04:46	olliecrow	CPPg++13.3.0	Success	4,347
Mar 12, 2026 21:11	zielaj	CPPclang++18.1.3	Success	4,268
Mar 12, 2026 21:04	zielaj	CPPclang++18.1.3	Success	4,258
Mar 12, 2026 21:04	zielaj	CPPclang++18.1.3	Error
Mar 12, 2026 21:03	zielaj	CPPclang++18.1.3	Error
Mar 12, 2026 21:02	zielaj	CPPclang++18.1.3	Error
Mar 12, 2026 21:01	zielaj	CPPclang++18.1.3	Error
Mar 12, 2026 21:00	zielaj	CPPclang++18.1.3	Error
Mar 12, 2026 21:00	zielaj	CPPclang++18.1.3	Error

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