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.

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Aug 4, 2024 21:40	5,611	34,964,621	15,961,000	1,995,000	2,289,664
2	Aug 4, 2024 21:40	5,623	35,804,995	15,996,000	1,999,000	2,273,280
3	Aug 4, 2024 21:40	5,632	34,736,992	16,021,000	2,002,000	2,265,088
4	Aug 4, 2024 21:40	5,635	45,190,703	16,028,000	2,003,000	2,273,280
5	Aug 4, 2024 21:40	5,643	36,489,579	16,053,000	2,006,000	2,285,568
6	Aug 4, 2024 21:40	5,653	46,349,782	16,080,000	2,010,000	2,273,280
7	Aug 4, 2024 21:40	5,662	47,059,635	17,112,000	1,006,000	2,289,664
8	Aug 4, 2024 21:40	5,678	40,848,433	16,150,000	2,018,000	2,277,376
9	Aug 4, 2024 21:40	5,687	46,395,309	16,177,000	2,022,000	2,281,472
10	Aug 4, 2024 21:40	5,784	47,560,552	17,481,000	1,028,000	2,273,280
11	Aug 4, 2024 21:40	5,792	45,332,538	17,505,000	1,029,000	2,289,664
12	Aug 4, 2024 21:40	5,792	36,015,138	17,504,000	1,029,000	2,289,664
13	Aug 4, 2024 21:40	5,813	46,467,792	17,570,000	1,033,000	2,273,280
14	Aug 4, 2024 21:40	5,815	39,507,555	18,607,000	0	2,289,664
15	Aug 4, 2024 21:40	5,816	50,523,055	17,577,000	1,033,000	2,289,664
16	Aug 4, 2024 21:41	5,820	39,317,300	17,589,000	1,034,000	2,281,472
17	Aug 4, 2024 21:40	5,823	37,408,278	17,600,000	1,035,000	2,269,184
18	Aug 4, 2024 21:41	5,825	48,458,236	17,604,000	1,035,000	2,269,184
19	Aug 4, 2024 21:41	5,828	38,159,415	17,613,000	1,036,000	2,289,664
20	Aug 4, 2024 21:41	5,831	49,110,680	18,660,000	0	2,289,664
21	Aug 4, 2024 21:40	5,833	47,358,054	17,628,000	1,036,000	2,269,184
22	Aug 4, 2024 21:41	5,834	44,861,172	17,631,000	1,037,000	2,289,664
23	Aug 4, 2024 21:41	5,844	47,291,090	18,700,000	0	2,289,664
24	Aug 4, 2024 21:40	5,856	43,726,015	17,697,000	1,041,000	2,289,664
25	Aug 4, 2024 21:40	5,880	78,307,768	18,815,146	0	2,310,144
26	Aug 4, 2024 21:41	5,895	46,960,565	16,879,000	1,985,000	2,289,664
27	Aug 4, 2024 21:41	5,896	51,563,873	16,881,000	1,986,000	2,289,664
28	Aug 4, 2024 21:40	5,899	76,689,355	18,875,331	0	2,179,072
29	Aug 4, 2024 21:41	5,899	45,452,364	16,891,000	1,987,000	2,289,664
30	Aug 4, 2024 21:40	5,937	86,038,611	18,998,606	0	2,297,856
31	Aug 4, 2024 21:40	6,074	93,390,919	19,435,863	0	2,310,144
32	Aug 4, 2024 21:40	6,080	101,414,426	19,454,676	0	2,183,168
33	Aug 4, 2024 21:41	6,086	73,146,615	19,475,502	0	2,174,976
34	Aug 4, 2024 21:40	6,091	85,648,724	19,489,838	0	2,179,072
35	Aug 4, 2024 21:41	6,113	66,237,132	19,560,570	0	2,310,144
36	Aug 4, 2024 21:41	6,126	88,926,064	19,603,533	0	2,256,896

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