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
Dec 20, 2025 18:02	jhallgreen	CPPg++13.3.0	Error
Dec 20, 2025 17:59	jhallgreen	CPPg++13.3.0	Success	5,694+1.54 RP
Dec 20, 2025 17:58	jhallgreen	CPPclang++18.1.3	Success	6,082
Dec 20, 2025 17:57	jhallgreen	CPPclang++18.1.3	Success	6,075
Dec 20, 2025 17:56	jhallgreen	CPPclang++18.1.3	Success	10,829
Dec 20, 2025 17:53	jhallgreen	CPPg++13.3.0	Success	5,723
Dec 20, 2025 17:52	jhallgreen	CPPg++13.3.0	Success	5,699+880.57 RP
Dec 20, 2025 17:51	jhallgreen	CPPg++13.3.0	Success	24,339
Dec 20, 2025 17:50	jhallgreen	CPPg++13.3.0	Success	11,440+521.78 RP
Dec 20, 2025 17:48	jhallgreen	CPPg++13.3.0	Success	28,381+153.17 RP
Dec 20, 2025 17:47	jhallgreen	CPPg++13.3.0	Success	50,627
Dec 20, 2025 17:46	jhallgreen	CPPg++13.3.0	Success	50,206+187.31 RP
Dec 20, 2025 17:45	jhallgreen	CPPg++13.3.0	Error
Dec 20, 2025 17:42	jhallgreen	CPPg++13.3.0	Error
Dec 20, 2025 12:48	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 12:47	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,532
Dec 20, 2025 12:41	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,524
Dec 20, 2025 12:35	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,410
Dec 20, 2025 12:31	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 12:19	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 12:04	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 12:03	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 06:28	Ahmed Mhedhbi	CPPg++13.3.0	Success	8,248
Dec 20, 2025 06:24	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,312
Dec 20, 2025 06:20	Ahmed Mhedhbi	CPPg++13.3.0	Success	8,078
Dec 20, 2025 04:58	Ahmed Mhedhbi	CPPg++13.3.0	Success	8,413
Dec 20, 2025 04:55	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,365
Dec 20, 2025 04:52	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,829
Dec 20, 2025 04:48	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,409
Dec 20, 2025 04:44	Ahmed Mhedhbi	CPPg++13.3.0	Success	9,892
Dec 20, 2025 04:29	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,308+14.44 RP
Dec 20, 2025 04:24	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,446
Dec 20, 2025 04:21	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 04:20	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 04:13	jhallgreen	CPPg++13.3.0	Error
Dec 20, 2025 04:08	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,349+61.19 RP
Dec 20, 2025 03:51	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,530+78.21 RP
Dec 20, 2025 03:38	Ahmed Mhedhbi	CPPg++13.3.0	Success	5,780+1'730.10 RP
Dec 20, 2025 02:40	jhallgreen	CPPg++13.3.0	Error
Dec 20, 2025 02:25	jhallgreen	CPPg++13.3.0	Success	3,004,147
Dec 20, 2025 02:23	jhallgreen	CPPg++13.3.0	Success	2,973,142
Dec 20, 2025 02:22	jhallgreen	GOgo1.25.5	Error
Dec 20, 2025 02:20	jhallgreen	GOgo1.25.5	Success	842,768+11.87 RP
Dec 18, 2025 00:20	Hattonuri	CPPg++13.3.0	Error
Dec 16, 2025 11:57	Joad Nacer	CPPclang++18.1.3	Success	4,380
Dec 16, 2025 11:57	Joad Nacer	CPPg++13.3.0	Success	4,376
Dec 15, 2025 19:07	CountHarebourg	CPPg++13.3.0	Success	10,984
Dec 15, 2025 18:59	CountHarebourg	CPPg++13.3.0	Success	5,812
Dec 15, 2025 17:56	Pavitra Golchha	RUSTrust-1.92.0	Success	40,874
Dec 15, 2025 17:41	Pavitra Golchha	RUSTrust-1.92.0	Success	40,664
Dec 15, 2025 17:40	Pavitra Golchha	RUSTrust-1.92.0	Success	40,903
Dec 15, 2025 17:14	Pavitra Golchha	RUSTrust-1.92.0	Success	40,571+25.72 RP
Dec 15, 2025 16:46	Pavitra Golchha	RUSTrust-1.92.0	Success	45,298+1.04 RP
Dec 15, 2025 16:36	Pavitra Golchha	RUSTrust-1.92.0	Success	45,534
Dec 15, 2025 16:34	Pavitra Golchha	RUSTrust-1.92.0	Success	45,513+1.51 RP
Dec 15, 2025 16:30	Pavitra Golchha	RUSTrust-1.92.0	Success	45,828+218.21 RP
Dec 14, 2025 10:27	Viktor Suprun	GOgo1.25.5	Success	5,941
Dec 14, 2025 10:23	Viktor Suprun	GOgo1.25.5	Success	5,980
Dec 14, 2025 10:16	Viktor Suprun	GOgo1.25.5	Error
Dec 14, 2025 10:11	Viktor Suprun	GOgo1.25.5	Error
Dec 6, 2025 11:41	Aditya Singh	CPPg++13.3.0	Success	707,562+14.13 RP
Dec 5, 2025 07:27	Rajarshi Basu	CPPg++13.3.0	Success	5,457+4.69 RP
Dec 5, 2025 07:21	Rajarshi Basu	CPPg++13.3.0	Success	5,485
Dec 5, 2025 07:13	Rajarshi Basu	CPPg++13.3.0	Success	5,471+1'558.51 RP
Dec 5, 2025 07:06	Rajarshi Basu	CPPg++13.3.0	Success	37,132+265.95 RP
Dec 5, 2025 07:05	Rajarshi Basu	CPPg++13.3.0	Error
Dec 3, 2025 14:42	Rajarshi Basu	CPPg++13.3.0	Success	2,973,850+3.36 RP
Nov 30, 2025 09:01	Jeffrey Jian	CPPg++13.3.0	Success	43,493+229.92 RP
Nov 25, 2025 18:15	CountHarebourg	CPPg++13.3.0	Success	5,492
Nov 25, 2025 18:09	CountHarebourg	CPPg++13.3.0	Success	5,307
Nov 25, 2025 18:04	CountHarebourg	CPPg++13.3.0	Error
Nov 25, 2025 17:58	CountHarebourg	CPPg++13.3.0	Success	5,478
Nov 23, 2025 07:39	Rac	CPPg++13.3.0	Success	6,051
Nov 23, 2025 07:37	Rac	CPPg++13.3.0	Error
Nov 23, 2025 07:34	Rac	CPPg++13.3.0	Success	5,644
Nov 23, 2025 07:32	Rac	CPPg++13.3.0	Success	5,463+707.78 RP
Nov 23, 2025 07:22	Rac	CPPg++13.3.0	Error
Nov 23, 2025 07:00	Rac	CPPg++13.3.0	Success	8,907+1'122.71 RP
Nov 19, 2025 12:08	wee77777wee-hue	CPPclang++18.1.3	Success	5,467
Nov 19, 2025 11:52	wee77777wee-hue	CPPclang++18.1.3	Success	5,437
Nov 19, 2025 11:47	wee77777wee-hue	CPPclang++18.1.3	Success	5,475
Nov 19, 2025 11:44	wee77777wee-hue	CPPclang++18.1.3	Success	38,440
Nov 19, 2025 11:37	wee77777wee-hue	CPPclang++18.1.3	Success	5,483
Nov 19, 2025 11:33	wee77777wee-hue	CPPclang++18.1.3	Success	5,951
Nov 18, 2025 18:07	CountHarebourg	CPPg++13.3.0	Success	5,329
Nov 18, 2025 18:00	CountHarebourg	CPPg++13.3.0	Success	5,202
Nov 15, 2025 16:09	CountHarebourg	CPPg++13.3.0	Success	5,278
Nov 15, 2025 14:25	CountHarebourg	CPPg++13.3.0	Success	5,787
Nov 15, 2025 14:20	CountHarebourg	CPPg++13.3.0	Success	5,360
Nov 15, 2025 11:44	CountHarebourg	CPPg++13.3.0	Error
Nov 15, 2025 11:44	CountHarebourg	CPPg++13.3.0	Error
Nov 14, 2025 14:14	wee77777wee-hue	CPPclang++18.1.3	Success	5,842
Nov 14, 2025 14:11	wee77777wee-hue	CPPclang++18.1.3	Success	6,049
Nov 14, 2025 14:10	wee77777wee-hue	CPPclang++18.1.3	Success	6,021
Nov 14, 2025 14:09	wee77777wee-hue	CPPclang++18.1.3	Success	6,005
Nov 14, 2025 14:08	wee77777wee-hue	CPPclang++18.1.3	Success	6,008
Nov 14, 2025 14:08	wee77777wee-hue	CPPclang++18.1.3	Success	6,050
Nov 14, 2025 14:07	wee77777wee-hue	CPPclang++18.1.3	Success	6,033
Nov 14, 2025 14:06	wee77777wee-hue	CPPclang++18.1.3	Success	11,273
Nov 14, 2025 14:05	wee77777wee-hue	CPPclang++18.1.3	Error

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