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.

Back to listMay 17, 2021 19:43

Yuriy Lyfenko

Score: 5,360

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 17, 2021 19:46	5,322	2,893,581,575	15,137,000	1,892,000	2,396,160
2	May 17, 2021 19:43	5,323	248,101,608	16,032,000	1,002,000	2,269,184
3	May 17, 2021 19:43	5,323	2,601,072,646	15,029,000	2,003,000	2,265,088
4	May 17, 2021 19:43	5,324	1,842,020,970	16,034,000	1,002,000	2,260,992
5	May 17, 2021 19:46	5,331	1,477,570,000	14,928,000	2,132,000	2,260,992
6	May 17, 2021 19:43	5,331	1,541,340,370	15,052,000	2,006,000	2,265,088
7	May 17, 2021 19:43	5,340	788,606,277	16,083,000	1,005,000	2,523,136
8	May 17, 2021 19:43	5,340	2,483,007,646	16,084,000	1,005,000	2,265,088
9	May 17, 2021 19:43	5,340	913,245,878	17,087,000	0	2,269,184
10	May 17, 2021 19:46	5,341	1,469,915,786	17,092,000	0	2,265,088
11	May 17, 2021 19:46	5,344	2,530,919,779	16,095,000	1,005,000	2,523,136
12	May 17, 2021 19:43	5,346	1,478,342,458	15,095,000	2,012,000	2,265,088
13	May 17, 2021 19:46	5,351	463,566,886	16,117,000	1,007,000	2,269,184
14	May 17, 2021 19:43	5,356	748,274,098	16,131,000	1,008,000	2,269,184
15	May 17, 2021 19:43	5,356	2,705,032,185	14,282,000	2,856,000	2,265,088
16	May 17, 2021 19:43	5,356	1,154,060,380	15,235,000	1,904,000	2,265,088
17	May 17, 2021 19:43	5,357	1,180,715,967	15,125,000	2,016,000	2,265,088
18	May 17, 2021 19:46	5,357	1,254,306,592	17,143,000	0	2,269,184
19	May 17, 2021 19:43	5,360	1,472,988,197	17,151,000	0	2,396,160
20	May 17, 2021 19:46	5,363	754,973,972	15,256,000	1,907,000	2,400,256
21	May 17, 2021 19:43	5,363	2,832,810,312	16,154,000	1,009,000	2,527,232
22	May 17, 2021 19:46	5,364	2,485,794,011	16,156,000	1,009,000	2,527,232
23	May 17, 2021 19:43	5,365	1,521,010,547	14,308,000	2,861,000	2,265,088
24	May 17, 2021 19:43	5,373	897,438,026	15,170,000	2,022,000	2,527,232
25	May 17, 2021 19:43	5,379	1,123,673,191	16,258,000	956,000	2,269,184
26	May 17, 2021 19:43	5,380	1,374,653,984	17,216,000	0	2,269,184
27	May 17, 2021 19:46	5,407	128,690,633	16,341,000	961,000	2,269,184
28	May 17, 2021 19:46	5,526	1,388,663,101	17,682,217	0	2,277,376
29	May 17, 2021 19:43	5,530	2,153,148,503	17,696,526	0	2,281,472
30	May 17, 2021 19:43	5,532	1,166,376,096	17,703,517	0	2,277,376
31	May 17, 2021 19:43	5,536	1,519,618,654	17,716,564	0	2,277,376
32	May 17, 2021 19:43	5,537	1,241,197,549	17,719,591	0	2,281,472
33	May 17, 2021 19:46	5,545	2,692,590,989	17,743,818	0	2,277,376
34	May 17, 2021 19:43	5,550	1,951,112,033	17,759,840	0	2,281,472
35	May 17, 2021 19:46	5,571	2,839,059,051	17,828,121	0	2,281,472
36	May 17, 2021 19:43	5,576	281,318,428	17,844,290	0	2,273,280

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