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
Jan 22, 2026 03:57	Josu San Martin	CPPg++13.3.0	Success	4,448
Jan 22, 2026 03:42	Josu San Martin	CPPg++13.3.0	Success	4,422
Jan 17, 2026 02:38	zielaj	CPPclang++18.1.3	Success	4,165
Jan 15, 2026 19:13	Dmitry Yudakov	CSHARP10.0.0-preview.1	Success	7,350
Jan 15, 2026 19:11	Dmitry Yudakov	CSHARP10.0.0-preview.1	Success	7,386
Jan 15, 2026 19:00	Dmitry Yudakov	CSHARP10.0.0-preview.1	Error
Jan 15, 2026 18:59	Dmitry Yudakov	CSHARP10.0.0-preview.1	Success	7,335+43.72 RP
Jan 15, 2026 18:57	Dmitry Yudakov	CSHARP10.0.0-preview.1	Error
Jan 15, 2026 13:52	zielaj	CPPclang++18.1.3	Success	366,699
Jan 15, 2026 13:51	zielaj	CPPclang++18.1.3	Success	367,055
Jan 15, 2026 13:50	zielaj	CPPclang++18.1.3	Success	367,198
Jan 15, 2026 13:50	zielaj	CPPclang++18.1.3	Success	366,274
Jan 15, 2026 13:49	zielaj	CPPclang++18.1.3	Success	366,329
Jan 15, 2026 13:49	zielaj	CPPclang++18.1.3	Success	367,094
Jan 15, 2026 13:48	zielaj	CPPclang++18.1.3	Success	367,105
Jan 15, 2026 13:44	zielaj	CPPclang++18.1.3	Success	368,366
Jan 15, 2026 13:43	zielaj	CPPclang++18.1.3	Success	366,208
Jan 15, 2026 13:42	zielaj	CPPclang++18.1.3	Success	366,542
Jan 15, 2026 12:55	zielaj	CPPclang++18.1.3	Success	366,309
Jan 15, 2026 12:55	zielaj	CPPclang++18.1.3	Success	370,238
Jan 15, 2026 04:32	zielaj	CPPclang++18.1.3	Success	4,134
Jan 15, 2026 04:31	zielaj	CPPclang++18.1.3	Success	366,736
Jan 15, 2026 04:30	zielaj	CPPclang++18.1.3	Success	366,713
Jan 15, 2026 04:30	zielaj	CPPclang++18.1.3	Success	366,371
Jan 15, 2026 04:26	zielaj	CPPclang++18.1.3	Success	365,995
Jan 15, 2026 04:24	zielaj	CPPclang++18.1.3	Success	367,132
Jan 15, 2026 04:22	zielaj	CPPclang++18.1.3	Success	366,376
Jan 15, 2026 04:22	zielaj	CPPclang++18.1.3	Success	366,591
Jan 15, 2026 04:21	zielaj	CPPclang++18.1.3	Success	370,771
Jan 15, 2026 03:21	zielaj	CPPclang++18.1.3	Success	4,145
Jan 15, 2026 03:20	zielaj	CPPclang++18.1.3	Success	366,138
Jan 15, 2026 03:19	zielaj	CPPclang++18.1.3	Success	366,260
Jan 15, 2026 03:17	zielaj	CPPclang++18.1.3	Success	366,193
Jan 15, 2026 03:17	zielaj	CPPclang++18.1.3	Success	366,032
Jan 15, 2026 03:16	zielaj	CPPclang++18.1.3	Success	366,136
Jan 15, 2026 03:15	zielaj	CPPclang++18.1.3	Success	366,117
Jan 15, 2026 03:15	zielaj	CPPclang++18.1.3	Success	367,193
Jan 15, 2026 03:13	zielaj	CPPclang++18.1.3	Success	366,801
Jan 15, 2026 03:13	zielaj	CPPclang++18.1.3	Success	366,621
Jan 15, 2026 03:12	zielaj	CPPclang++18.1.3	Success	366,519
Jan 15, 2026 03:11	zielaj	CPPclang++18.1.3	Success	366,879
Jan 15, 2026 03:10	zielaj	CPPclang++18.1.3	Success	366,013
Jan 15, 2026 03:08	zielaj	CPPclang++18.1.3	Success	366,558
Jan 15, 2026 03:07	zielaj	CPPclang++18.1.3	Success	367,504
Jan 15, 2026 03:07	zielaj	CPPclang++18.1.3	Success	4,175
Jan 15, 2026 02:48	zielaj	CPPclang++18.1.3	Success	366,235
Jan 15, 2026 02:47	zielaj	CPPclang++18.1.3	Success	365,976
Jan 15, 2026 02:46	zielaj	CPPclang++18.1.3	Success	366,069
Jan 15, 2026 02:46	zielaj	CPPclang++18.1.3	Success	366,274
Jan 15, 2026 02:45	zielaj	CPPclang++18.1.3	Success	366,066
Jan 15, 2026 02:45	zielaj	CPPclang++18.1.3	Success	365,960
Jan 15, 2026 02:44	zielaj	CPPclang++18.1.3	Success	365,765
Jan 15, 2026 02:43	zielaj	CPPclang++18.1.3	Success	367,464
Jan 15, 2026 02:42	zielaj	CPPclang++18.1.3	Success	367,164
Jan 15, 2026 02:42	zielaj	CPPclang++18.1.3	Success	366,052
Jan 15, 2026 02:40	zielaj	CPPclang++18.1.3	Success	366,830
Jan 15, 2026 02:24	zielaj	CPPclang++18.1.3	Success	366,656
Jan 15, 2026 02:23	zielaj	CPPclang++18.1.3	Success	367,077
Jan 15, 2026 02:21	zielaj	CPPclang++18.1.3	Success	366,726
Jan 15, 2026 02:20	zielaj	CPPclang++18.1.3	Success	366,762
Jan 15, 2026 02:19	zielaj	CPPclang++18.1.3	Success	367,516
Jan 15, 2026 02:18	zielaj	CPPclang++18.1.3	Success	389,696
Jan 15, 2026 02:17	zielaj	CPPclang++18.1.3	Success	366,841
Jan 15, 2026 02:16	zielaj	CPPclang++18.1.3	Success	367,293
Jan 15, 2026 02:15	zielaj	CPPclang++18.1.3	Success	371,619
Jan 15, 2026 02:15	zielaj	CPPclang++18.1.3	Success	368,833
Jan 15, 2026 02:14	zielaj	CPPclang++18.1.3	Success	368,491
Jan 15, 2026 02:13	zielaj	CPPclang++18.1.3	Success	367,482
Jan 15, 2026 02:13	zielaj	CPPclang++18.1.3	Success	366,219
Jan 15, 2026 02:12	zielaj	CPPclang++18.1.3	Success	368,546
Jan 15, 2026 02:11	zielaj	CPPclang++18.1.3	Success	366,772
Jan 15, 2026 02:09	zielaj	CPPclang++18.1.3	Success	371,243
Jan 15, 2026 01:44	zielaj	CPPclang++18.1.3	Success	4,195
Jan 15, 2026 01:40	zielaj	CPPclang++18.1.3	Success	4,165
Jan 15, 2026 01:39	zielaj	CPPclang++18.1.3	Success	4,153
Jan 15, 2026 01:26	zielaj	CPPclang++18.1.3	Success	4,130
Jan 15, 2026 01:25	zielaj	CPPclang++18.1.3	Success	4,194
Jan 15, 2026 01:24	zielaj	CPPclang++18.1.3	Success	4,157
Jan 14, 2026 10:49	Sanchit Gupta	CPPg++13.3.0	Success	5,950
Jan 14, 2026 10:46	Sanchit Gupta	CPPg++13.3.0	Success	5,757+5.41 RP
Jan 14, 2026 10:42	Sanchit Gupta	CPPg++13.3.0	Success	5,894
Jan 14, 2026 10:31	Sanchit Gupta	CPPg++13.3.0	Success	5,775+1'159.26 RP
Jan 14, 2026 10:29	Sanchit Gupta	CPPg++13.3.0	Success	17,472+0.82 RP
Jan 14, 2026 10:20	Sanchit Gupta	CPPg++13.3.0	Success	17,497+568.17 RP
Jan 14, 2026 10:18	Sanchit Gupta	CPPg++13.3.0	Error
Jan 14, 2026 10:13	Sanchit Gupta	CPPg++13.3.0	Error
Jan 14, 2026 09:11	Sanchit Gupta	CPPg++13.3.0	Error
Jan 14, 2026 09:08	Sanchit Gupta	CPPg++13.3.0	Success	2,978,244+3.36 RP
Jan 13, 2026 09:47	Bogay	GOgo1.25.5	Success	843,073+11.86 RP
Jan 12, 2026 14:22	Josu San Martin	CPPg++13.3.0	Error
Jan 7, 2026 21:07	Dmitry Yudakov	CSHARP10.0.0-preview.1	Success	10,682
Jan 7, 2026 04:33	Josu San Martin	GOgo1.25.5	Success	4,813
Jan 6, 2026 18:27	Sergey Serebryakov	CPPg++13.3.0	Success	4,714
Jan 6, 2026 17:46	Sergey Serebryakov	CPPg++13.3.0	Success	4,433
Jan 6, 2026 17:45	Sergey Serebryakov	CPPg++13.3.0	Success	4,371
Jan 6, 2026 17:45	Sergey Serebryakov	CPPg++13.3.0	Success	4,375
Jan 6, 2026 17:45	Sergey Serebryakov	CPPg++13.3.0	Success	4,398
Jan 6, 2026 17:44	Sergey Serebryakov	CPPg++13.3.0	Success	4,371
Jan 6, 2026 17:32	Sergey Serebryakov	CPPg++13.3.0	Success	5,582
Jan 6, 2026 17:27	Sergey Serebryakov	CPPg++13.3.0	Success	5,512

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