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 listSep 4, 2021 21:47

Andrey Tsvetkov

Score: 5,635

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 4, 2021 21:47	5,587	41,726,439	15,893,000	1,986,000	2,433,024
2	Sep 4, 2021 21:46	5,595	44,882,783	17,905,000	0	2,433,024
3	Sep 4, 2021 21:46	5,595	51,068,556	15,915,000	1,989,000	2,437,120
4	Sep 4, 2021 21:47	5,596	40,276,215	16,914,000	994,000	2,342,912
5	Sep 4, 2021 21:46	5,598	33,710,967	16,859,000	1,053,000	2,428,928
6	Sep 4, 2021 21:47	5,599	42,443,034	17,918,000	0	2,437,120
7	Sep 4, 2021 21:47	5,604	48,305,692	15,942,000	1,992,000	2,342,912
8	Sep 4, 2021 21:47	5,604	39,484,478	16,938,000	996,000	2,437,120
9	Sep 4, 2021 21:46	5,607	34,011,481	16,946,000	996,000	2,342,912
10	Sep 4, 2021 21:47	5,611	43,025,389	16,959,000	997,000	2,289,664
11	Sep 4, 2021 21:47	5,612	48,898,757	15,963,000	1,995,000	2,437,120
12	Sep 4, 2021 21:46	5,617	35,142,423	16,977,000	998,000	2,347,008
13	Sep 4, 2021 21:47	5,619	44,963,745	15,983,000	1,997,000	2,433,024
14	Sep 4, 2021 21:47	5,622	45,190,644	15,991,000	1,998,000	2,342,912
15	Sep 4, 2021 21:47	5,623	48,837,811	16,994,000	999,000	2,433,024
16	Sep 4, 2021 21:46	5,627	86,904,715	18,005,317	0	2,273,280
17	Sep 4, 2021 21:47	5,628	43,742,057	17,008,000	1,000,000	2,531,328
18	Sep 4, 2021 21:47	5,630	81,218,127	18,014,483	0	2,269,184
19	Sep 4, 2021 21:47	5,635	42,065,688	17,032,000	1,001,000	2,342,912
20	Sep 4, 2021 21:46	5,635	49,516,224	16,028,000	2,003,000	2,293,760
21	Sep 4, 2021 21:47	5,635	95,411,323	18,031,203	0	2,273,280
22	Sep 4, 2021 21:47	5,637	85,047,196	18,039,835	0	2,277,376
23	Sep 4, 2021 21:47	5,637	42,246,441	16,035,000	2,004,000	2,433,024
24	Sep 4, 2021 21:47	5,639	47,386,882	17,043,000	1,002,000	2,342,912
25	Sep 4, 2021 21:46	5,646	43,881,992	17,065,000	1,003,000	2,347,008
26	Sep 4, 2021 21:46	5,652	35,634,078	17,083,000	1,004,000	2,334,720
27	Sep 4, 2021 21:47	5,654	45,544,543	17,087,000	1,005,000	2,342,912
28	Sep 4, 2021 21:47	5,655	38,241,630	17,092,000	1,005,000	2,428,928
29	Sep 4, 2021 21:47	5,666	32,383,845	17,125,000	1,007,000	2,428,928
30	Sep 4, 2021 21:46	5,677	34,069,541	16,148,000	2,018,000	2,338,816
31	Sep 4, 2021 21:47	5,679	35,284,369	16,154,000	2,019,000	2,441,216
32	Sep 4, 2021 21:47	5,682	79,907,490	18,183,128	0	2,265,088
33	Sep 4, 2021 21:46	5,682	64,500,859	18,181,862	0	2,273,280
34	Sep 4, 2021 21:46	5,760	95,772,272	18,432,162	0	2,265,088
35	Sep 4, 2021 21:47	5,778	76,957,398	18,489,695	0	2,265,088
36	Sep 4, 2021 21:47	5,805	88,167,177	18,576,900	0	2,260,992

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