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 17, 2021 23:57

Yuriy Lyfenko

Score: 5,452

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 18, 2021 00:00	5,404	1,814,794,298	15,372,000	1,921,000	2,519,040
2	May 17, 2021 23:57	5,407	1,589,668,654	15,381,000	1,922,000	2,260,992
3	May 18, 2021 00:00	5,414	1,412,163,374	16,305,000	1,019,000	2,260,992
4	May 17, 2021 23:57	5,415	863,560,750	15,402,000	1,925,000	2,523,136
5	May 18, 2021 00:00	5,420	3,191,726,804	17,344,000	0	2,519,040
6	May 17, 2021 23:57	5,421	604,446,330	17,347,000	0	2,523,136
7	May 17, 2021 23:57	5,423	3,317,740,231	16,388,000	964,000	2,519,040
8	May 17, 2021 23:57	5,425	2,191,535,968	15,431,000	1,928,000	2,260,992
9	May 18, 2021 00:00	5,425	2,305,454,366	15,431,000	1,928,000	2,260,992
10	May 18, 2021 00:00	5,426	2,427,287,827	16,400,000	964,000	2,260,992
11	May 17, 2021 23:57	5,430	3,138,645,794	15,445,000	1,930,000	2,519,040
12	May 17, 2021 23:57	5,432	1,179,986,696	15,338,000	2,045,000	2,269,184
13	May 17, 2021 23:57	5,434	1,733,463,882	16,423,000	966,000	2,523,136
14	May 17, 2021 23:57	5,435	3,272,811,131	13,527,000	3,865,000	2,519,040
15	May 17, 2021 23:57	5,440	3,005,296,033	15,473,000	1,934,000	2,519,040
16	May 18, 2021 00:00	5,441	2,297,151,445	15,478,000	1,934,000	2,523,136
17	May 18, 2021 00:00	5,451	3,099,332,010	17,444,000	0	2,265,088
18	May 18, 2021 00:00	5,452	1,698,294,230	17,445,000	0	2,523,136
19	May 17, 2021 23:57	5,452	3,458,889,541	17,446,000	0	2,523,136
20	May 17, 2021 23:57	5,458	1,845,104,268	17,465,000	0	2,523,136
21	May 17, 2021 23:57	5,466	2,250,053,164	15,548,000	1,943,000	2,519,040
22	May 17, 2021 23:57	5,468	1,645,488,234	15,552,000	1,944,000	2,260,992
23	May 17, 2021 23:57	5,478	1,689,858,965	16,499,000	1,031,000	2,523,136
24	May 17, 2021 23:57	5,481	1,020,131,947	15,476,000	2,063,000	2,523,136
25	May 17, 2021 23:57	5,486	1,937,450,721	16,524,000	1,032,000	2,523,136
26	May 18, 2021 00:00	5,486	1,025,802,070	16,579,000	975,000	2,387,968
27	May 17, 2021 23:57	5,504	821,550,661	16,635,000	978,000	2,383,872
28	May 17, 2021 23:57	5,594	2,317,270,811	17,901,944	0	2,285,568
29	May 17, 2021 23:57	5,608	3,496,256,183	17,946,269	0	2,281,472
30	May 18, 2021 00:00	5,611	3,111,759,898	17,955,645	0	2,281,472
31	May 17, 2021 23:57	5,621	615,221,803	17,986,319	0	2,285,568
32	May 17, 2021 23:57	5,622	700,875,737	17,991,803	0	2,281,472
33	May 18, 2021 00:00	5,623	1,206,661,758	17,993,680	0	2,281,472
34	May 18, 2021 00:00	5,631	2,747,856,682	18,019,986	0	2,277,376
35	May 17, 2021 23:57	5,633	2,794,813,552	18,024,306	0	2,277,376
36	May 17, 2021 23:57	5,643	2,774,107,417	18,057,195	0	2,281,472

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