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 24, 2021 17:31

Yuriy Lyfenko

Score: 6,003

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 24, 2021 17:32	5,948	46,720,786	16,028,000	3,005,000	2,342,912
2	May 24, 2021 17:31	5,956	42,449,035	17,054,000	2,006,000	2,523,136
3	May 24, 2021 17:32	5,964	43,845,455	17,077,000	2,009,000	2,519,040
4	May 24, 2021 17:31	5,966	44,879,677	16,077,000	3,014,000	2,527,232
5	May 24, 2021 17:31	5,971	44,429,623	16,090,000	3,016,000	2,334,720
6	May 24, 2021 19:41	5,974	47,473,644	16,100,000	3,018,000	2,506,752
7	May 24, 2021 19:41	5,977	48,633,678	16,107,000	3,020,000	2,523,136
8	May 24, 2021 17:32	5,978	46,149,227	17,117,000	2,013,000	2,334,720
9	May 24, 2021 19:41	5,980	45,278,452	16,114,000	3,021,000	2,334,720
10	May 24, 2021 19:41	5,980	33,523,088	16,114,000	3,021,000	2,519,040
11	May 24, 2021 19:41	5,980	45,442,732	17,122,000	2,014,000	2,514,944
12	May 24, 2021 17:32	5,993	47,315,517	16,151,000	3,028,000	2,514,944
13	May 24, 2021 17:32	5,993	44,340,939	16,149,000	3,027,000	2,510,848
14	May 24, 2021 17:31	5,994	46,230,546	17,162,000	2,019,000	2,379,776
15	May 24, 2021 17:31	5,997	49,172,920	17,171,000	2,020,000	2,514,944
16	May 24, 2021 17:32	6,000	42,159,365	17,179,000	2,021,000	2,334,720
17	May 24, 2021 19:41	6,001	45,593,173	17,183,000	2,021,000	2,334,720
18	May 24, 2021 17:31	6,003	38,386,751	17,187,000	2,022,000	2,334,720
19	May 24, 2021 17:31	6,003	42,837,107	16,178,000	3,033,000	2,527,232
20	May 24, 2021 19:41	6,004	40,144,965	18,202,000	1,011,000	2,527,232
21	May 24, 2021 17:31	6,008	45,983,206	16,189,000	3,035,000	2,334,720
22	May 24, 2021 17:32	6,010	42,793,924	17,207,000	2,024,000	2,510,848
23	May 24, 2021 17:32	6,012	38,462,206	16,200,000	3,037,000	2,527,232
24	May 24, 2021 17:31	6,012	42,147,423	17,213,000	2,025,000	2,523,136
25	May 24, 2021 17:32	6,015	43,709,497	16,209,000	3,039,000	2,514,944
26	May 24, 2021 19:41	6,032	41,831,580	16,255,000	3,047,000	2,514,944
27	May 24, 2021 19:41	6,035	36,918,105	18,295,000	1,016,000	2,510,848
28	May 24, 2021 17:31	6,038	52,300,774	19,321,971	0	2,232,320
29	May 24, 2021 17:31	6,107	99,512,788	19,542,127	0	2,228,224
30	May 24, 2021 17:32	6,142	51,320,210	19,654,288	0	2,215,936
31	May 24, 2021 17:32	6,143	102,834,601	19,657,826	0	2,232,320
32	May 24, 2021 19:41	6,168	49,140,924	19,737,101	0	2,232,320
33	May 24, 2021 17:31	6,172	68,094,691	19,751,412	0	2,228,224
34	May 24, 2021 17:32	6,222	92,147,275	19,909,220	0	2,224,128
35	May 24, 2021 19:41	6,242	74,116,789	19,973,201	0	2,220,032
36	May 24, 2021 19:41	6,264	72,167,719	20,045,855	0	2,228,224

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