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
Feb 14, 2026 04:04	olliecrow	CPPg++13.3.0	Success	4,749
Feb 14, 2026 03:29	olliecrow	CPPg++13.3.0	Success	4,864
Feb 14, 2026 03:24	olliecrow	CPPg++13.3.0	Success	4,450
Feb 14, 2026 03:19	olliecrow	CPPg++13.3.0	Success	4,544
Feb 14, 2026 03:15	olliecrow	CPPg++13.3.0	Success	4,734
Feb 14, 2026 03:10	olliecrow	CPPg++13.3.0	Success	4,569
Feb 14, 2026 03:04	olliecrow	CPPg++13.3.0	Success	6,462
Feb 14, 2026 02:35	olliecrow	CPPg++13.3.0	Success	4,468
Feb 14, 2026 02:26	olliecrow	CPPg++13.3.0	Success	4,497
Feb 14, 2026 02:22	olliecrow	CPPg++13.3.0	Success	4,456
Feb 14, 2026 02:16	olliecrow	CPPg++13.3.0	Success	4,479
Feb 14, 2026 02:11	olliecrow	CPPg++13.3.0	Success	4,444+16.59 RP
Feb 14, 2026 02:05	olliecrow	CPPg++13.3.0	Success	4,484
Feb 14, 2026 01:54	olliecrow	CPPg++13.3.0	Success	4,780
Feb 14, 2026 01:48	olliecrow	CPPg++13.3.0	Success	4,638
Feb 14, 2026 01:41	olliecrow	CPPg++13.3.0	Success	4,477
Feb 14, 2026 01:35	olliecrow	CPPg++13.3.0	Success	4,532
Feb 14, 2026 01:31	olliecrow	CPPg++13.3.0	Success	4,512
Feb 14, 2026 01:24	olliecrow	CPPg++13.3.0	Success	4,601
Feb 14, 2026 01:20	olliecrow	CPPg++13.3.0	Success	5,304
Feb 14, 2026 01:14	olliecrow	CPPg++13.3.0	Success	4,503
Feb 14, 2026 01:09	olliecrow	CPPg++13.3.0	Success	4,559
Feb 14, 2026 01:03	olliecrow	CPPg++13.3.0	Success	4,558
Feb 14, 2026 00:57	olliecrow	CPPg++13.3.0	Success	4,646
Feb 14, 2026 00:53	olliecrow	CPPg++13.3.0	Success	4,504
Feb 14, 2026 00:48	olliecrow	CPPg++13.3.0	Success	4,533
Feb 14, 2026 00:38	olliecrow	CPPg++13.3.0	Success	5,278
Feb 14, 2026 00:32	olliecrow	CPPg++13.3.0	Success	4,651
Feb 14, 2026 00:21	olliecrow	CPPg++13.3.0	Success	4,484
Feb 14, 2026 00:15	olliecrow	CPPg++13.3.0	Success	4,486
Feb 14, 2026 00:09	olliecrow	CPPg++13.3.0	Success	4,709
Feb 14, 2026 00:04	olliecrow	CPPg++13.3.0	Success	5,418
Feb 13, 2026 23:37	olliecrow	CPPg++13.3.0	Success	4,477+2'233.64 RP
Feb 9, 2026 19:08	nun	RUSTrust-1.93.0	Success	46,182
Feb 9, 2026 19:01	nun	RUSTrust-1.93.0	Success	85,332
Feb 9, 2026 19:00	nun	RUSTrust-1.93.0	Success	84,813
Feb 9, 2026 18:57	nun	RUSTrust-1.93.0	Error
Feb 9, 2026 18:52	nun	RUSTrust-1.93.0	Success	44,612+224.15 RP
Feb 4, 2026 15:47	lipapipa	CPPg++13.3.0	Success	4,703
Feb 4, 2026 15:46	lipapipa	CPPg++13.3.0	Success	4,674
Feb 4, 2026 15:02	lipapipa	CPPg++13.3.0	Success	4,553+18.65 RP
Feb 4, 2026 15:02	lipapipa	CPPg++13.3.0	Success	4,867
Feb 4, 2026 15:01	lipapipa	CPPg++13.3.0	Success	4,730
Feb 4, 2026 09:40	lipapipa	CPPg++13.3.0	Success	5,934
Feb 4, 2026 09:26	lipapipa	CPPg++13.3.0	Success	4,592+53.66 RP
Feb 4, 2026 09:26	lipapipa	CPPg++13.3.0	Success	5,489
Feb 4, 2026 09:26	lipapipa	CPPg++13.3.0	Success	5,691
Feb 4, 2026 09:25	lipapipa	CPPg++13.3.0	Success	5,703
Feb 4, 2026 09:25	lipapipa	CPPg++13.3.0	Success	5,739
Feb 4, 2026 09:25	lipapipa	CPPg++13.3.0	Success	5,892
Jan 29, 2026 20:41	lipapipa	CPPg++13.3.0	Success	4,710
Jan 29, 2026 20:41	lipapipa	CPPg++13.3.0	Success	4,720
Jan 29, 2026 20:40	lipapipa	CPPg++13.3.0	Success	17,560
Jan 29, 2026 20:40	lipapipa	CPPg++13.3.0	Success	5,489
Jan 29, 2026 16:29	lipapipa	CPPg++13.3.0	Success	4,708
Jan 29, 2026 16:28	lipapipa	CPPg++13.3.0	Success	4,708+2'124.04 RP
Jan 28, 2026 12:44	GKP00	CPPclang++18.1.3	Success	19,091
Jan 28, 2026 12:43	GKP00	CPPclang++18.1.3	Success	19,015+31.90 RP
Jan 28, 2026 12:42	GKP00	CPPclang++18.1.3	Success	24,975
Jan 28, 2026 12:30	GKP00	CPPclang++18.1.3	Success	40,366
Jan 28, 2026 12:16	GKP00	CPPclang++18.1.3	Success	20,243+393.26 RP
Jan 28, 2026 12:15	GKP00	CPPclang++18.1.3	Success	99,267+2.64 RP
Jan 28, 2026 12:04	GKP00	CPPclang++18.1.3	Success	102,044
Jan 28, 2026 12:03	GKP00	CPPg++13.3.0	Success	239,950
Jan 28, 2026 12:02	GKP00	CPPg++13.3.0	Success	230,152
Jan 28, 2026 12:01	GKP00	CPPclang++18.1.3	Error
Jan 28, 2026 11:54	GKP00	CPPclang++18.1.3	Success	2,969,294
Jan 28, 2026 11:51	GKP00	CPPclang++18.1.3	Success	101,940+73.34 RP
Jan 28, 2026 11:50	GKP00	CPPclang++18.1.3	Error
Jan 28, 2026 11:48	GKP00	CPPclang++18.1.3	Success	403,946+24.76 RP
Jan 28, 2026 09:52	opisafaq	CPPg++13.3.0	Success	32,983+303.19 RP
Jan 28, 2026 09:49	opisafaq	CPPg++13.3.0	Error
Jan 26, 2026 13:46	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,274
Jan 26, 2026 13:43	Ryan Chung Yi Sheng	CPPg++13.3.0	Error
Jan 26, 2026 13:40	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,151
Jan 26, 2026 13:39	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,142+12.77 RP
Jan 26, 2026 13:36	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,718
Jan 26, 2026 13:32	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,305
Jan 26, 2026 13:30	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,425
Jan 25, 2026 15:45	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,176+65.63 RP
Jan 25, 2026 15:40	Ryan Chung Yi Sheng	CPPg++13.3.0	Error
Jan 25, 2026 15:38	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,523
Jan 25, 2026 15:37	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,540
Jan 25, 2026 15:36	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,513
Jan 25, 2026 15:35	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,366
Jan 25, 2026 15:34	Ryan Chung Yi Sheng	CPPclang++18.1.3	Success	5,504
Jan 25, 2026 15:28	Ryan Chung Yi Sheng	CPPclang++18.1.3	Success	5,480
Jan 25, 2026 15:28	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,378
Jan 24, 2026 14:41	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,358+35.54 RP
Jan 24, 2026 14:41	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,584
Jan 24, 2026 14:41	Ryan Chung Yi Sheng	CPPclang++18.1.3	Success	5,823
Jan 24, 2026 14:32	Ryan Chung Yi Sheng	CPPclang++18.1.3	Success	5,744
Jan 24, 2026 14:26	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	5,584
Jan 24, 2026 14:26	Ryan Chung Yi Sheng	CPPclang++18.1.3	Success	5,952
Jan 22, 2026 22:32	Josu San Martin	CPPg++13.3.0	Error
Jan 22, 2026 19:31	Josu San Martin	CPPg++13.3.0	Error
Jan 22, 2026 13:41	Ryan Chung Yi Sheng	CPPclang++18.1.3	Success	10,672
Jan 22, 2026 13:37	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	16,680
Jan 22, 2026 13:36	Ryan Chung Yi Sheng	CPPg++13.3.0	Success	16,755
Jan 22, 2026 04:11	Josu San Martin	CPPg++13.3.0	Success	4,468

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