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	Apr 22, 2025 20:13	4,186	35,510,032	13,395,000	0	2,498,560
2	Apr 22, 2025 19:58	4,200	33,330,029	13,440,000	0	2,506,752
3	Apr 22, 2025 20:13	4,202	31,162,922	13,446,000	0	2,273,280
4	Apr 22, 2025 19:58	4,206	30,126,400	13,458,000	0	2,490,368
5	Apr 22, 2025 20:10	4,208	28,899,390	13,467,000	0	2,498,560
6	Apr 22, 2025 20:28	4,208	33,096,655	13,464,000	0	2,490,368
7	Apr 22, 2025 19:58	4,211	33,000,023	13,474,000	0	2,498,560
8	Apr 22, 2025 20:13	4,213	30,862,112	13,481,000	0	2,273,280
9	Apr 22, 2025 20:13	4,215	34,480,156	13,488,000	0	2,273,280
10	Apr 22, 2025 20:13	4,218	33,163,969	13,496,000	0	2,498,560
11	Apr 22, 2025 20:12	4,219	31,636,567	13,501,000	0	2,273,280
12	Apr 22, 2025 20:13	4,223	30,384,080	13,513,000	0	2,498,560
13	Apr 22, 2025 20:13	4,225	26,997,468	13,520,000	0	2,531,328
14	Apr 22, 2025 20:28	4,227	31,207,174	13,527,000	0	2,498,560
15	Apr 22, 2025 19:58	4,228	33,318,736	13,530,000	0	2,273,280
16	Apr 22, 2025 19:58	4,229	29,099,643	13,534,000	0	2,273,280
17	Apr 22, 2025 20:11	4,232	31,825,182	13,543,000	0	2,273,280
18	Apr 22, 2025 20:13	4,233	32,534,314	13,545,000	0	2,531,328
19	Apr 22, 2025 20:13	4,234	33,316,163	13,550,000	0	2,531,328
20	Apr 22, 2025 19:58	4,234	27,301,538	13,550,000	0	2,490,368
21	Apr 22, 2025 19:58	4,240	29,317,538	13,567,000	0	2,498,560
22	Apr 22, 2025 20:13	4,242	26,591,303	13,574,000	0	2,531,328
23	Apr 22, 2025 20:10	4,247	23,711,260	13,589,000	0	2,502,656
24	Apr 22, 2025 20:12	4,248	27,201,933	13,593,000	0	2,273,280
25	Apr 22, 2025 20:13	4,248	29,299,302	13,592,000	0	2,273,280
26	Apr 22, 2025 20:13	4,248	26,230,898	13,592,000	0	2,531,328
27	Apr 22, 2025 20:13	4,250	31,601,762	13,600,000	0	2,490,368
28	Apr 22, 2025 19:58	4,251	25,317,570	13,602,000	0	2,502,656
29	Apr 22, 2025 20:13	4,251	29,202,760	13,604,000	0	2,494,464
30	Apr 22, 2025 20:28	4,256	33,000,561	13,620,000	0	2,273,280
31	Apr 22, 2025 20:13	4,257	36,244,380	13,623,000	0	2,490,368
32	Apr 22, 2025 20:10	4,260	27,232,801	13,633,000	0	2,273,280
33	Apr 22, 2025 20:13	4,267	27,416,664	13,654,000	0	2,273,280
34	Apr 22, 2025 19:58	4,271	39,709,117	13,668,000	0	2,494,464
35	Apr 22, 2025 20:13	4,273	41,956,915	13,675,000	0	2,273,280
36	Apr 22, 2025 20:12	4,275	34,485,242	13,679,000	0	2,273,280
37	Apr 22, 2025 20:11	4,275	30,799,129	13,680,000	0	2,494,464
38	Apr 22, 2025 20:13	4,290	29,708,449	12,749,000	980,000	2,273,280
39	Apr 22, 2025 20:12	4,291	29,805,690	13,730,000	0	2,273,280
40	Apr 22, 2025 20:12	4,293	25,919,227	13,739,000	0	2,273,280
41	Apr 22, 2025 20:11	4,337	33,978,216	12,888,000	991,000	2,502,656
42	Apr 22, 2025 20:12	4,338	27,073,724	13,883,000	0	2,494,464

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