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	Error
1	Apr 23, 2025 23:01	0	0	0	0	0	Error: No answer to stdout. Died or killed?	stderr
2	Apr 23, 2025 23:00	0	0	0	0	0	Error: No answer to stdout. Died or killed?	stderr
3	Apr 23, 2025 23:01	4,100	29,081,707	12,112,000	1,009,000	2,498,560
4	Apr 24, 2025 01:00	4,109	26,253,563	12,137,000	1,011,000	2,494,464
5	Apr 23, 2025 22:58	4,125	31,588,301	12,186,000	1,015,000	2,494,464
6	Apr 23, 2025 22:56	4,128	33,361,714	12,194,000	1,016,000	2,273,280
7	Apr 23, 2025 22:56	4,128	29,018,889	12,193,000	1,016,000	2,486,272
8	Apr 23, 2025 22:56	4,130	26,497,855	12,201,000	1,016,000	2,490,368
9	Apr 23, 2025 22:59	4,132	34,620,469	12,206,000	1,017,000	2,494,464
10	Apr 23, 2025 22:56	4,136	33,297,780	12,216,000	1,018,000	2,502,656
11	Apr 24, 2025 01:00	4,138	33,112,937	13,243,000	0	2,531,328
12	Apr 23, 2025 22:59	4,138	38,336,210	13,240,000	0	2,273,280
13	Apr 23, 2025 22:56	4,139	26,514,540	13,244,000	0	2,273,280
14	Apr 23, 2025 22:56	4,142	29,389,598	11,362,000	1,893,000	2,531,328
15	Apr 23, 2025 22:57	4,145	24,786,788	13,265,000	0	2,494,464
16	Apr 23, 2025 22:56	4,147	36,718,042	12,251,000	1,020,000	2,494,464
17	Apr 24, 2025 01:00	4,148	28,637,179	13,275,000	0	2,273,280
18	Apr 23, 2025 22:56	4,151	34,493,199	13,282,000	0	2,498,560
19	Apr 23, 2025 22:57	4,152	30,476,060	13,285,000	0	2,498,560
20	Apr 24, 2025 01:00	4,153	28,612,420	13,288,000	0	2,498,560
21	Apr 23, 2025 22:57	4,153	31,754,252	13,291,000	0	2,494,464
22	Apr 23, 2025 22:59	4,153	32,800,370	13,289,000	0	2,498,560
23	Apr 24, 2025 00:36	4,154	32,734,395	13,293,000	0	2,498,560
24	Apr 23, 2025 22:58	4,163	35,501,637	13,322,000	0	2,273,280
25	Apr 23, 2025 22:59	4,164	35,744,765	13,326,000	0	2,273,280
26	Apr 23, 2025 22:56	4,166	26,566,352	13,332,000	0	2,498,560
27	Apr 24, 2025 00:36	4,168	27,723,957	13,336,000	0	2,490,368
28	Apr 24, 2025 00:36	4,168	28,647,473	13,339,000	0	2,531,328
29	Apr 23, 2025 23:01	4,172	26,668,403	13,351,000	0	2,273,280
30	Apr 23, 2025 22:56	4,174	30,811,239	13,357,000	0	2,498,560
31	Apr 23, 2025 22:59	4,175	32,347,746	13,361,000	0	2,494,464
32	Apr 23, 2025 22:57	4,175	33,649,579	13,359,000	0	2,498,560
33	Apr 23, 2025 22:57	4,178	30,371,941	13,371,000	0	2,498,560
34	Apr 23, 2025 22:57	4,182	30,746,731	13,381,000	0	2,506,752
35	Apr 23, 2025 22:58	4,183	30,415,578	13,384,000	0	2,494,464
36	Apr 23, 2025 23:01	4,189	28,750,546	13,404,000	0	2,498,560
37	Apr 23, 2025 22:56	4,189	25,720,759	13,404,000	0	2,502,656
38	Apr 23, 2025 22:56	4,192	32,773,834	13,413,000	0	2,486,272
39	Apr 24, 2025 01:00	4,193	36,045,022	13,419,000	0	2,494,464
40	Apr 23, 2025 22:59	4,200	30,838,979	13,440,000	0	2,502,656
41	Apr 24, 2025 01:00	4,207	32,885,416	13,463,000	0	2,531,328

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