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 11, 2021 20:54

Mikhail Dektyarev

Score: 5,623

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 11, 2021 20:56	5,588	43,411,237	16,888,000	993,000	2,387,968
2	May 11, 2021 20:54	5,593	47,772,900	16,903,000	994,000	2,523,136
3	May 11, 2021 20:54	5,596	42,567,883	15,918,000	1,989,000	2,383,872
4	May 11, 2021 20:56	5,602	50,885,415	16,931,000	995,000	2,392,064
5	May 11, 2021 20:55	5,609	44,077,821	14,958,000	2,991,000	2,519,040
6	May 11, 2021 20:55	5,609	44,996,804	16,951,000	997,000	2,523,136
7	May 11, 2021 20:56	5,609	42,519,754	15,954,000	1,994,000	2,519,040
8	May 11, 2021 20:54	5,615	40,240,616	15,973,000	1,996,000	2,519,040
9	May 11, 2021 20:56	5,615	43,634,385	15,971,000	1,996,000	2,519,040
10	May 11, 2021 20:55	5,616	35,261,615	16,974,000	998,000	2,510,848
11	May 11, 2021 20:56	5,616	35,590,108	15,974,000	1,996,000	2,519,040
12	May 11, 2021 20:55	5,617	43,762,881	14,978,000	2,995,000	2,510,848
13	May 11, 2021 20:56	5,617	39,356,554	15,977,000	1,997,000	2,383,872
14	May 11, 2021 20:55	5,618	46,860,640	16,978,000	998,000	2,383,872
15	May 11, 2021 20:54	5,618	48,077,881	15,979,000	1,997,000	2,396,160
16	May 11, 2021 20:54	5,618	44,093,827	16,979,000	998,000	2,519,040
17	May 11, 2021 20:55	5,621	43,690,379	15,989,000	1,998,000	2,392,064
18	May 11, 2021 20:55	5,622	42,756,864	15,992,000	1,999,000	2,387,968
19	May 11, 2021 20:56	5,623	35,128,900	16,994,000	999,000	2,523,136
20	May 11, 2021 20:54	5,623	35,858,025	13,995,000	3,998,000	2,519,040
21	May 11, 2021 20:56	5,625	44,774,197	16,001,000	2,000,000	2,519,040
22	May 11, 2021 20:56	5,629	43,994,809	16,012,000	2,001,000	2,519,040
23	May 11, 2021 20:55	5,632	43,241,055	17,022,000	1,001,000	2,519,040
24	May 11, 2021 20:54	5,633	34,059,672	16,022,000	2,002,000	2,383,872
25	May 11, 2021 20:54	5,636	45,546,152	16,031,000	2,003,000	2,519,040
26	May 11, 2021 20:54	5,648	44,759,337	17,068,000	1,004,000	2,387,968
27	May 11, 2021 20:55	5,658	36,504,454	16,093,000	2,011,000	2,260,992
28	May 11, 2021 20:54	5,887	65,621,471	18,839,268	0	2,273,280
29	May 11, 2021 20:54	5,888	88,426,338	18,841,084	0	2,289,664
30	May 11, 2021 20:56	5,896	81,723,540	18,867,291	0	2,281,472
31	May 11, 2021 20:56	5,901	95,028,452	18,882,256	0	2,277,376
32	May 11, 2021 20:54	5,905	86,318,381	18,894,622	0	2,289,664
33	May 11, 2021 20:55	5,930	89,432,862	18,976,978	0	2,277,376
34	May 11, 2021 20:55	5,942	64,230,113	19,015,025	0	2,273,280
35	May 11, 2021 20:55	5,953	81,988,694	19,050,969	0	2,281,472
36	May 11, 2021 20:56	5,954	67,724,121	19,053,121	0	2,281,472

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