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 listJul 18, 2024 12:14

Matt Stuchlik

Score: 5,496

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 18, 2024 12:13	5,442	46,627,255	16,389,000	1,024,000	2,269,184
2	Jul 18, 2024 12:14	5,450	32,903,260	17,439,000	0	2,260,992
3	Jul 18, 2024 12:14	5,451	53,467,024	16,418,000	1,026,000	2,289,664
4	Jul 18, 2024 12:13	5,461	39,697,644	15,419,000	2,055,000	2,273,280
5	Jul 18, 2024 12:14	5,463	42,428,465	16,453,000	1,028,000	2,289,664
6	Jul 18, 2024 12:14	5,463	38,752,864	16,453,000	1,028,000	2,523,136
7	Jul 18, 2024 12:13	5,465	34,458,077	16,460,000	1,028,000	2,289,664
8	Jul 18, 2024 12:14	5,465	44,581,493	16,459,000	1,028,000	2,289,664
9	Jul 18, 2024 12:14	5,468	32,683,678	16,470,000	1,029,000	2,404,352
10	Jul 18, 2024 12:14	5,472	33,332,393	17,509,000	0	2,269,184
11	Jul 18, 2024 12:13	5,481	39,506,918	16,508,000	1,031,000	2,289,664
12	Jul 18, 2024 12:14	5,482	42,270,638	17,541,000	0	2,289,664
13	Jul 18, 2024 12:13	5,483	40,665,387	16,513,000	1,032,000	2,269,184
14	Jul 18, 2024 12:14	5,489	43,819,414	16,532,000	1,033,000	2,289,664
15	Jul 18, 2024 12:14	5,490	43,257,296	16,536,000	1,033,000	2,289,664
16	Jul 18, 2024 12:14	5,491	40,054,342	16,537,000	1,033,000	2,289,664
17	Jul 18, 2024 12:14	5,492	46,088,923	16,541,000	1,033,000	2,273,280
18	Jul 18, 2024 12:14	5,494	43,855,236	16,546,000	1,034,000	2,289,664
19	Jul 18, 2024 12:14	5,496	34,936,390	16,554,000	1,034,000	2,269,184
20	Jul 18, 2024 12:14	5,499	35,617,536	16,563,000	1,035,000	2,289,664
21	Jul 18, 2024 12:14	5,499	48,007,220	15,527,000	2,070,000	2,273,280
22	Jul 18, 2024 12:13	5,505	46,856,405	16,580,000	1,036,000	2,269,184
23	Jul 18, 2024 12:13	5,508	49,349,922	16,589,000	1,036,000	2,289,664
24	Jul 18, 2024 12:14	5,517	47,344,310	16,617,000	1,038,000	2,289,664
25	Jul 18, 2024 12:13	5,517	44,268,815	16,616,000	1,038,000	2,289,664
26	Jul 18, 2024 12:13	5,517	53,452,373	16,617,000	1,038,000	2,289,664
27	Jul 18, 2024 12:14	5,519	33,330,444	16,622,000	1,038,000	2,523,136
28	Jul 18, 2024 12:13	5,689	79,762,165	18,204,777	0	2,183,168
29	Jul 18, 2024 12:13	5,690	68,700,144	18,208,669	0	2,301,952
30	Jul 18, 2024 12:14	5,711	80,864,278	18,274,226	0	2,301,952
31	Jul 18, 2024 12:14	5,714	86,336,477	18,283,388	0	2,310,144
32	Jul 18, 2024 12:14	5,721	91,912,636	18,308,093	0	2,301,952
33	Jul 18, 2024 12:14	5,735	87,858,621	18,351,667	0	2,174,976
34	Jul 18, 2024 12:13	5,745	79,395,531	18,383,282	0	2,301,952
35	Jul 18, 2024 12:14	5,749	62,914,494	18,395,646	0	2,301,952
36	Jul 18, 2024 12:14	5,754	84,882,119	18,411,481	0	2,306,048

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