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
Sep 12, 2026 15:08	Kevin Heavey	CPPg++13.3.0	Success	3,999
Sep 12, 2026 15:05	Kevin Heavey	CPPg++13.3.0	Success	4,325
Sep 12, 2026 15:04	Kevin Heavey	CPPg++13.3.0	Success	16,453
Sep 12, 2026 15:02	Kevin Heavey	CPPg++13.3.0	Success	4,326
Sep 12, 2026 15:00	Kevin Heavey	CPPg++13.3.0	Success	16,437
Sep 12, 2026 14:58	Kevin Heavey	CPPg++13.3.0	Success	4,003
Sep 12, 2026 14:57	Kevin Heavey	CPPg++13.3.0	Success	16,445
Sep 12, 2026 14:54	Kevin Heavey	CPPg++13.3.0	Success	4,000
Sep 12, 2026 14:52	Kevin Heavey	CPPg++13.3.0	Success	4,318
Sep 12, 2026 05:09	Haha Expert	CPPg++14.2.0	Success	4,907
Sep 12, 2026 05:08	Haha Expert	CPPg++14.2.0	Success	5,236
Sep 12, 2026 05:06	Haha Expert	CPPg++14.2.0	Success	5,477
Sep 12, 2026 05:05	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 05:02	Haha Expert	CPPg++14.2.0	Success	4,927
Sep 12, 2026 05:00	Haha Expert	CPPg++14.2.0	Success	5,140
Sep 12, 2026 04:59	Haha Expert	CPPg++14.2.0	Success	4,895+35.67 RP
Sep 12, 2026 04:58	Haha Expert	CPPg++14.2.0	Success	4,982+76.35 RP
Sep 12, 2026 04:56	Haha Expert	CPPg++14.2.0	Success	5,338
Sep 12, 2026 04:55	Haha Expert	CPPg++14.2.0	Success	5,199
Sep 12, 2026 04:55	Haha Expert	CPPg++14.2.0	Success	5,494
Sep 12, 2026 04:54	Haha Expert	CPPclang++20.1.2	Success	5,586
Sep 12, 2026 04:53	Haha Expert	CPPg++13.3.0	Success	5,508
Sep 12, 2026 04:52	Haha Expert	CPPg++13.3.0	Success	5,179+125.17 RP
Sep 10, 2026 16:27	Andrew Epstein	CPPg++14.2.0	Success	4,259+10.43 RP
Sep 9, 2026 22:53	Andrew Epstein	CPPg++14.2.0	Success	4,286
Sep 6, 2026 22:07	Warren Fu	CPPg++13.3.0	Success	4,563+179.06 RP
Sep 6, 2026 09:50	Warren Fu	CPPg++14.2.0	Success	4,969+38.14 RP
Sep 6, 2026 09:49	William Liao	CPPg++10.5.0	Success	5,373+50.88 RP
Sep 6, 2026 09:47	Warren Fu	CPPg++14.2.0	Success	5,065+17.77 RP
Sep 6, 2026 09:31	Warren Fu	CPPg++14.2.0	Success	5,127
Sep 6, 2026 09:15	Warren Fu	CPPg++14.2.0	Success	5,111+64.42 RP
Sep 6, 2026 09:10	Warren Fu	CPPg++14.2.0	Success	5,285
Sep 6, 2026 08:58	Warren Fu	CPPg++14.2.0	Success	5,296
Sep 6, 2026 08:45	Warren Fu	CPPg++14.2.0	Success	5,292
Sep 6, 2026 08:44	Warren Fu	CPPclang++20.1.2	Success	5,480
Sep 6, 2026 08:42	Warren Fu	CPPg++10.5.0	Success	5,338
Sep 6, 2026 08:37	Warren Fu	CPPg++10.5.0	Success	5,285+71.98 RP
Sep 6, 2026 08:24	Warren Fu	CPPclang++20.1.2	Success	5,494+100.48 RP
Sep 6, 2026 08:16	William Liao	CPPg++10.5.0	Success	5,524+19.45 RP
Sep 6, 2026 08:15	William Liao	CPPg++14.2.0	Success	5,584+3.52 RP
Sep 6, 2026 07:53	William Liao	CPPg++10.5.0	Success	5,595+905.86 RP
Sep 6, 2026 07:42	Warren Fu	CPPclang++20.1.2	Success	5,815+2.07 RP
Sep 6, 2026 07:35	Warren Fu	CPPclang++20.1.2	Success	5,822+3.83 RP
Sep 6, 2026 07:35	Warren Fu	CPPclang++20.1.2	Error
Sep 6, 2026 07:26	William Liao	CPPg++10.5.0	Success	11,345+229.81 RP
Sep 6, 2026 07:24	Warren Fu	CPPclang++20.1.2	Success	5,835
Sep 6, 2026 07:24	Warren Fu	CPPclang++20.1.2	Success	5,835+0.59 RP
Sep 6, 2026 07:20	Warren Fu	CPPclang++20.1.2	Success	5,837+485.16 RP
Sep 6, 2026 06:49	William Liao	CPPg++10.5.0	Success	15,346+176.26 RP
Sep 6, 2026 06:15	William Liao	CPPg++10.5.0	Success	21,036+274.60 RP
Sep 6, 2026 05:52	Warren Fu	CPPclang++20.1.2	Success	8,143+13.28 RP
Sep 6, 2026 05:47	Warren Fu	CPPg++10.5.0	Success	8,232+1'017.96 RP
Sep 6, 2026 03:51	Warren Fu	CPPg++10.5.0	Success	50,810+196.81 RP
Sep 5, 2026 07:16	William Liao	CPPg++10.5.0	Success	49,806+200.78 RP
Sep 4, 2026 10:02	Victor Mercklé	CPPg++14.2.0	Success	4,106
Sep 4, 2026 09:08	Victor Mercklé	CPPg++14.2.0	Success	4,024
Sep 4, 2026 08:06	Victor Mercklé	CPPg++14.2.0	Success	4,122
Sep 4, 2026 07:26	Victor Mercklé	CPPg++14.2.0	Success	4,394
Sep 4, 2026 06:57	Victor Mercklé	CPPg++14.2.0	Success	4,108
Sep 3, 2026 19:03	Victor Mercklé	CPPg++14.2.0	Success	4,100
Sep 3, 2026 19:01	Victor Mercklé	CPPg++14.2.0	Success	4,269
Sep 3, 2026 18:59	Victor Mercklé	CPPg++14.2.0	Success	4,123
Sep 3, 2026 18:57	Victor Mercklé	CPPg++14.2.0	Success	4,274
Sep 3, 2026 18:52	Victor Mercklé	CPPg++14.2.0	Success	5,020
Sep 3, 2026 18:47	Victor Mercklé	CPPg++14.2.0	Success	4,250
Sep 3, 2026 18:44	Victor Mercklé	CPPg++14.2.0	Success	4,218
Sep 3, 2026 18:34	Victor Mercklé	CPPg++14.2.0	Success	4,130
Sep 3, 2026 18:29	Victor Mercklé	CPPg++14.2.0	Success	4,118
Sep 3, 2026 18:26	Victor Mercklé	CPPg++14.2.0	Success	4,096
Sep 3, 2026 18:19	Victor Mercklé	CPPg++14.2.0	Success	4,962
Sep 3, 2026 18:14	Victor Mercklé	CPPg++14.2.0	Success	4,968
Sep 3, 2026 18:07	Victor Mercklé	CPPg++14.2.0	Success	4,114
Sep 3, 2026 18:05	Victor Mercklé	CPPg++14.2.0	Success	4,098
Sep 3, 2026 18:03	Victor Mercklé	CPPg++14.2.0	Success	4,160
Sep 3, 2026 18:00	Victor Mercklé	CPPg++14.2.0	Success	4,023+4.32 RP
Sep 3, 2026 17:56	Victor Mercklé	CPPg++14.2.0	Success	4,114
Sep 3, 2026 17:52	Victor Mercklé	CPPg++14.2.0	Success	4,096
Sep 3, 2026 17:50	Victor Mercklé	CPPg++14.2.0	Success	4,100
Sep 3, 2026 17:48	Victor Mercklé	CPPg++14.2.0	Success	4,097
Sep 3, 2026 17:46	Victor Mercklé	CPPg++14.2.0	Success	4,193
Sep 3, 2026 17:40	Victor Mercklé	CPPg++14.2.0	Success	4,155
Sep 3, 2026 17:35	Victor Mercklé	CPPg++14.2.0	Success	4,095
Sep 3, 2026 17:32	Victor Mercklé	CPPg++14.2.0	Success	4,090
Sep 3, 2026 17:30	Victor Mercklé	CPPg++14.2.0	Success	4,079
Sep 3, 2026 17:29	Victor Mercklé	CPPg++14.2.0	Success	4,030+2.46 RP
Sep 3, 2026 17:26	Victor Mercklé	CPPg++14.2.0	Success	4,070
Sep 3, 2026 17:16	Victor Mercklé	CPPg++14.2.0	Success	4,071
Sep 3, 2026 17:14	Victor Mercklé	CPPg++14.2.0	Success	4,120
Sep 3, 2026 17:11	Victor Mercklé	CPPg++14.2.0	Success	4,068
Sep 3, 2026 17:05	Victor Mercklé	CPPg++14.2.0	Success	4,086
Sep 3, 2026 17:01	Victor Mercklé	CPPg++14.2.0	Success	4,119
Sep 3, 2026 13:15	Victor Mercklé	CPPg++14.2.0	Success	4,101
Sep 3, 2026 13:01	Victor Mercklé	CPPg++14.2.0	Success	4,106+5.00 RP
Sep 2, 2026 15:18	Victor Mercklé	CPPg++14.2.0	Success	4,086
Sep 2, 2026 15:11	Victor Mercklé	CPPg++14.2.0	Success	4,076
Sep 2, 2026 15:07	Victor Mercklé	CPPg++14.2.0	Success	4,099
Sep 2, 2026 15:03	Victor Mercklé	CPPg++14.2.0	Success	4,136
Sep 2, 2026 14:45	Victor Mercklé	CPPg++14.2.0	Success	4,174
Sep 2, 2026 14:36	Victor Mercklé	CPPg++14.2.0	Success	4,148
Sep 2, 2026 14:32	Victor Mercklé	CPPg++14.2.0	Success	4,152

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