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 29, 2021 08:27

Dmitry Dolgopolov

Score: 4,978

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 29, 2021 08:27	4,959	37,267,198	14,879,000	991,000	2,273,280
2	May 29, 2021 08:27	4,959	31,682,368	13,885,000	1,983,000	2,445,312
3	May 29, 2021 08:28	4,960	42,802,723	13,889,000	1,984,000	2,445,312
4	May 29, 2021 08:28	4,961	42,816,762	14,884,000	992,000	2,535,424
5	May 29, 2021 08:28	4,962	45,727,978	14,886,000	992,000	2,535,424
6	May 29, 2021 08:27	4,962	31,781,528	13,894,000	1,984,000	2,445,312
7	May 29, 2021 08:28	4,963	29,354,039	14,823,000	1,058,000	2,273,280
8	May 29, 2021 08:27	4,963	34,139,818	13,897,000	1,985,000	2,273,280
9	May 29, 2021 08:27	4,964	34,772,292	13,901,000	1,985,000	2,535,424
10	May 29, 2021 08:27	4,965	37,719,591	13,902,000	1,986,000	2,535,424
11	May 29, 2021 08:27	4,967	34,872,583	13,908,000	1,986,000	2,445,312
12	May 29, 2021 08:28	4,968	43,660,773	13,912,000	1,987,000	2,441,216
13	May 29, 2021 08:27	4,969	39,482,687	13,915,000	1,987,000	2,273,280
14	May 29, 2021 08:27	4,969	40,908,150	13,914,000	1,987,000	2,535,424
15	May 29, 2021 08:27	4,971	34,390,981	13,918,000	1,988,000	2,445,312
16	May 29, 2021 08:27	4,971	42,489,508	14,846,000	1,060,000	2,273,280
17	May 29, 2021 08:28	4,972	32,948,083	14,915,000	994,000	2,535,424
18	May 29, 2021 08:27	4,975	37,279,070	13,931,000	1,990,000	2,273,280
19	May 29, 2021 08:28	4,978	37,143,336	13,940,000	1,991,000	2,535,424
20	May 29, 2021 08:28	4,978	39,221,382	13,937,000	1,991,000	2,273,280
21	May 29, 2021 08:28	4,980	36,012,894	13,945,000	1,992,000	2,441,216
22	May 29, 2021 08:27	4,984	30,489,578	13,955,000	1,993,000	2,433,024
23	May 29, 2021 08:27	4,988	30,900,276	13,966,000	1,995,000	2,531,328
24	May 29, 2021 08:27	4,991	33,198,338	13,974,000	1,996,000	2,273,280
25	May 29, 2021 08:27	4,993	42,578,138	13,980,000	1,997,000	2,445,312
26	May 29, 2021 08:27	4,993	36,652,490	13,982,000	1,997,000	2,273,280
27	May 29, 2021 08:27	4,996	36,387,736	13,988,000	1,998,000	2,535,424
28	May 29, 2021 08:28	5,199	47,999,178	16,635,537	0	2,199,552
29	May 29, 2021 08:27	5,207	56,282,159	16,662,935	0	2,199,552
30	May 29, 2021 08:27	5,216	72,007,156	16,689,678	0	2,203,648
31	May 29, 2021 08:27	5,239	48,259,170	16,764,595	0	2,195,456
32	May 29, 2021 08:27	5,244	63,722,982	16,782,200	0	2,199,552
33	May 29, 2021 08:27	5,246	83,208,968	16,787,418	0	2,199,552
34	May 29, 2021 08:27	5,247	43,800,867	16,789,199	0	2,207,744
35	May 29, 2021 08:28	5,251	86,682,136	16,803,098	0	2,199,552
36	May 29, 2021 08:28	5,258	75,587,913	16,825,743	0	2,199,552

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