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 15, 2021 21:54

Yuriy Lyfenko

Score: 5,483

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 15, 2021 21:54	5,431	36,061,432	17,378,000	0	2,260,992
2	May 15, 2021 21:54	5,440	34,236,050	15,361,000	2,048,000	2,260,992
3	May 15, 2021 21:54	5,443	43,293,119	17,417,000	0	2,527,232
4	May 15, 2021 21:54	5,443	32,262,427	16,394,000	1,024,000	2,400,256
5	May 15, 2021 21:54	5,445	43,480,725	16,399,000	1,024,000	2,265,088
6	May 15, 2021 21:54	5,449	42,977,434	16,411,000	1,025,000	2,392,064
7	May 15, 2021 21:54	5,450	39,532,851	17,439,000	0	2,260,992
8	May 15, 2021 21:54	5,452	34,280,031	16,420,000	1,026,000	2,392,064
9	May 15, 2021 21:54	5,453	41,989,148	16,425,000	1,026,000	2,400,256
10	May 15, 2021 21:54	5,454	42,225,792	16,428,000	1,026,000	2,523,136
11	May 15, 2021 21:54	5,455	40,118,179	16,431,000	1,026,000	2,523,136
12	May 15, 2021 21:54	5,463	32,021,666	16,452,000	1,028,000	2,260,992
13	May 15, 2021 21:54	5,463	42,777,425	16,452,000	1,028,000	2,265,088
14	May 15, 2021 21:54	5,468	40,382,592	16,470,000	1,029,000	2,523,136
15	May 15, 2021 21:54	5,470	43,899,437	16,476,000	1,029,000	2,260,992
16	May 15, 2021 21:54	5,471	41,186,269	16,477,000	1,029,000	2,523,136
17	May 15, 2021 21:54	5,476	31,866,562	14,432,000	3,092,000	2,260,992
18	May 15, 2021 21:54	5,478	38,384,767	17,531,000	0	2,523,136
19	May 15, 2021 21:54	5,483	39,658,016	16,513,000	1,032,000	2,387,968
20	May 15, 2021 21:54	5,483	38,405,270	17,546,000	0	2,265,088
21	May 15, 2021 21:54	5,495	41,077,336	17,584,000	0	2,506,752
22	May 15, 2021 21:54	5,513	47,211,430	16,606,000	1,037,000	2,523,136
23	May 15, 2021 21:54	5,585	42,593,763	17,872,000	0	2,396,160
24	May 15, 2021 21:54	5,585	49,140,164	14,894,000	2,978,000	2,387,968
25	May 15, 2021 21:54	5,586	34,502,025	13,904,000	3,972,000	2,523,136
26	May 15, 2021 21:54	5,589	48,015,907	15,899,000	1,987,000	2,387,968
27	May 15, 2021 21:54	5,590	43,796,371	14,907,000	2,981,000	2,486,272
28	May 15, 2021 21:54	5,671	66,649,326	18,145,831	0	2,273,280
29	May 15, 2021 21:54	5,689	73,490,672	18,203,865	0	2,281,472
30	May 15, 2021 21:54	5,690	55,044,698	18,206,485	0	2,277,376
31	May 15, 2021 21:54	5,701	61,763,215	18,244,194	0	2,277,376
32	May 15, 2021 21:54	5,708	83,587,657	18,267,112	0	2,281,472
33	May 15, 2021 21:54	5,712	73,287,715	18,279,982	0	2,281,472
34	May 15, 2021 21:54	5,724	81,906,556	18,317,358	0	2,281,472
35	May 15, 2021 21:54	5,769	82,488,855	18,459,315	0	2,273,280
36	May 15, 2021 21:54	5,769	83,564,676	18,461,952	0	2,273,280

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