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 08:04

Dmitry Dolgopolov

Score: 4,981

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 29, 2021 08:05	4,958	34,087,473	14,873,000	991,000	2,535,424
2	May 29, 2021 08:04	4,960	41,663,065	13,888,000	1,984,000	2,449,408
3	May 29, 2021 08:04	4,961	46,138,448	14,883,000	992,000	2,449,408
4	May 29, 2021 08:04	4,961	40,880,619	14,884,000	992,000	2,273,280
5	May 29, 2021 08:05	4,962	34,763,600	13,894,000	1,984,000	2,445,312
6	May 29, 2021 08:04	4,962	44,444,198	13,894,000	1,984,000	2,273,280
7	May 29, 2021 08:04	4,962	45,225,196	14,886,000	992,000	2,535,424
8	May 29, 2021 08:05	4,963	31,347,877	13,898,000	1,985,000	2,441,216
9	May 29, 2021 08:04	4,965	31,847,697	13,902,000	1,986,000	2,535,424
10	May 29, 2021 08:04	4,966	42,005,240	13,905,000	1,986,000	2,445,312
11	May 29, 2021 08:05	4,966	31,124,198	14,897,000	993,000	2,535,424
12	May 29, 2021 08:04	4,966	32,338,030	14,832,000	1,059,000	2,273,280
13	May 29, 2021 08:04	4,966	33,724,415	13,906,000	1,986,000	2,445,312
14	May 29, 2021 08:04	4,968	34,168,583	14,838,000	1,059,000	2,273,280
15	May 29, 2021 08:05	4,971	30,869,917	13,920,000	1,988,000	2,273,280
16	May 29, 2021 08:05	4,972	30,856,030	14,850,000	1,060,000	2,273,280
17	May 29, 2021 08:04	4,973	29,118,197	13,923,000	1,989,000	2,441,216
18	May 29, 2021 08:04	4,974	40,343,719	13,927,000	1,989,000	2,441,216
19	May 29, 2021 08:04	4,981	35,273,081	13,947,000	1,992,000	2,441,216
20	May 29, 2021 08:04	4,983	44,674,767	13,951,000	1,993,000	2,273,280
21	May 29, 2021 08:05	4,984	46,999,974	13,957,000	1,993,000	2,273,280
22	May 29, 2021 08:04	4,987	33,893,352	13,964,000	1,994,000	2,273,280
23	May 29, 2021 08:05	4,992	37,685,559	13,977,000	1,996,000	2,273,280
24	May 29, 2021 08:04	4,993	40,061,839	13,982,000	1,997,000	2,535,424
25	May 29, 2021 08:04	4,994	40,288,578	13,984,000	1,997,000	2,535,424
26	May 29, 2021 08:05	5,000	37,052,529	14,000,000	2,000,000	2,273,280
27	May 29, 2021 08:04	5,014	41,287,059	14,039,000	2,005,000	2,535,424
28	May 29, 2021 08:04	5,172	59,606,042	16,550,823	0	2,195,456
29	May 29, 2021 08:04	5,180	56,109,317	16,576,472	0	2,199,552
30	May 29, 2021 08:04	5,192	48,244,088	16,613,478	0	2,203,648
31	May 29, 2021 08:04	5,213	58,646,246	16,680,857	0	2,195,456
32	May 29, 2021 08:04	5,216	85,221,975	16,690,574	0	2,191,360
33	May 29, 2021 08:05	5,223	41,308,657	16,714,138	0	2,199,552
34	May 29, 2021 08:04	5,232	39,933,469	16,742,502	0	2,260,992
35	May 29, 2021 08:05	5,239	62,300,344	16,764,269	0	2,211,840
36	May 29, 2021 08:05	5,261	78,361,279	16,834,371	0	2,207,744

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