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 5, 2025 20:05	0	0	0	0	0	Error: expected "977398 ", got "40978 "
2	Apr 5, 2025 21:12	4,669	31,314,138	12,950,000	1,992,000	2,269,184
3	Apr 5, 2025 20:59	4,673	35,570,742	12,960,000	1,993,000	2,273,280
4	Apr 5, 2025 21:13	4,673	33,459,375	12,961,000	1,994,000	2,289,664
5	Apr 5, 2025 20:07	4,674	35,846,095	12,963,000	1,994,000	2,289,664
6	Apr 5, 2025 21:13	4,675	30,481,026	12,966,000	1,994,000	2,527,232
7	Apr 5, 2025 20:07	4,676	37,532,954	13,965,000	997,000	2,527,232
8	Apr 5, 2025 21:13	4,677	30,391,122	12,972,000	1,995,000	2,289,664
9	Apr 5, 2025 21:12	4,678	35,119,162	12,973,000	1,995,000	2,289,664
10	Apr 5, 2025 21:12	4,682	34,472,158	12,984,000	1,997,000	2,289,664
11	Jan 8, 2025 15:39	4,685	37,762,573	12,994,000	1,999,000	2,277,376
12	Jan 8, 2025 15:39	4,686	31,907,591	12,995,000	1,999,000	2,269,184
13	Apr 5, 2025 21:12	4,689	35,704,010	13,004,000	2,000,000	2,392,064
14	Apr 5, 2025 20:59	4,690	31,247,680	13,007,000	2,001,000	2,289,664
15	Apr 5, 2025 21:13	4,691	32,458,943	13,010,000	2,001,000	2,289,664
16	Jan 8, 2025 15:39	4,693	30,293,560	13,016,000	2,002,000	2,383,872
17	Nov 7, 2024 22:31	4,694	39,321,787	13,018,000	2,002,000	2,351,104
18	Apr 5, 2025 21:12	4,694	29,600,337	14,020,000	1,001,000	2,289,664
19	Apr 5, 2025 20:04	4,696	31,205,732	14,027,000	1,001,000	2,289,664
20	Apr 5, 2025 21:12	4,696	39,189,587	13,023,000	2,003,000	2,289,664
21	Apr 5, 2025 20:07	4,712	33,833,578	13,069,000	2,010,000	2,265,088
22	Apr 5, 2025 20:04	4,713	37,722,153	13,071,000	2,011,000	2,289,664
23	Nov 7, 2024 22:31	4,718	31,501,444	13,085,000	2,013,000	2,289,664
24	Nov 7, 2024 22:31	4,718	31,569,442	13,084,000	2,012,000	2,355,200
25	Apr 5, 2025 20:59	4,722	33,229,052	13,097,000	2,014,000	2,273,280
26	Apr 5, 2025 21:13	4,734	43,572,227	13,130,000	2,020,000	2,367,488
27	Apr 5, 2025 20:04	4,736	32,431,774	15,156,000	0	2,531,328
28	Apr 5, 2025 20:04	4,746	37,769,382	13,163,000	2,025,000	2,289,664
29	Apr 5, 2025 20:04	4,748	32,783,715	13,169,000	2,026,000	2,269,184
30	Apr 5, 2025 21:13	4,750	34,262,312	13,173,000	2,026,000	2,289,664
31	Apr 5, 2025 20:04	4,798	32,661,770	13,307,000	2,047,000	2,355,200
32	Apr 5, 2025 20:07	5,353	42,276,881	16,121,000	1,007,000	2,289,664
33	Apr 5, 2025 22:23	5,354	42,458,420	15,118,000	2,015,000	2,289,664
34	Apr 5, 2025 22:23	5,356	38,500,603	15,122,000	2,016,000	2,289,664
35	Apr 5, 2025 22:23	5,359	50,455,320	16,141,000	1,008,000	2,265,088
36	Apr 5, 2025 20:07	5,371	40,412,618	15,165,000	2,022,000	2,269,184
37	Apr 5, 2025 20:07	5,401	44,265,402	15,251,000	2,033,000	2,289,664

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