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 22:02

Andrey Tsvetkov

Score: 5,637

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 4, 2021 22:02	5,595	42,412,300	15,914,000	1,989,000	2,437,120
2	Sep 4, 2021 22:02	5,596	32,675,613	16,914,000	994,000	2,338,816
3	Sep 4, 2021 22:02	5,602	43,060,969	16,931,000	995,000	2,342,912
4	Sep 4, 2021 22:05	5,603	43,922,613	16,935,000	996,000	2,437,120
5	Sep 4, 2021 22:02	5,605	43,743,970	16,939,000	996,000	2,428,928
6	Sep 4, 2021 22:02	5,606	36,250,177	15,947,000	1,993,000	2,338,816
7	Sep 4, 2021 22:02	5,607	45,386,813	16,945,000	996,000	2,342,912
8	Sep 4, 2021 22:02	5,607	42,992,961	16,945,000	996,000	2,437,120
9	Sep 4, 2021 22:05	5,608	36,950,039	16,948,000	996,000	2,433,024
10	Sep 4, 2021 22:05	5,609	36,264,998	16,951,000	997,000	2,433,024
11	Sep 4, 2021 22:05	5,613	41,406,218	15,966,000	1,995,000	2,334,720
12	Sep 4, 2021 22:02	5,624	43,175,987	15,997,000	1,999,000	2,433,024
13	Sep 4, 2021 22:02	5,624	47,727,565	16,997,000	999,000	2,338,816
14	Sep 4, 2021 22:05	5,631	47,019,646	17,017,000	1,001,000	2,433,024
15	Sep 4, 2021 22:02	5,632	34,394,115	17,020,000	1,001,000	2,428,928
16	Sep 4, 2021 22:02	5,632	46,660,754	17,020,000	1,001,000	2,433,024
17	Sep 4, 2021 22:02	5,632	38,350,274	17,022,000	1,001,000	2,437,120
18	Sep 4, 2021 22:02	5,634	38,629,678	16,027,000	2,003,000	2,338,816
19	Sep 4, 2021 22:02	5,637	42,090,953	16,035,000	2,004,000	2,437,120
20	Sep 4, 2021 22:02	5,638	60,265,837	18,041,888	0	2,277,376
21	Sep 4, 2021 22:02	5,640	47,346,289	16,042,000	2,005,000	2,424,832
22	Sep 4, 2021 22:05	5,641	46,779,983	16,047,000	2,005,000	2,433,024
23	Sep 4, 2021 22:05	5,642	42,731,956	15,046,000	3,009,000	2,342,912
24	Sep 4, 2021 22:05	5,643	35,050,005	17,055,000	1,003,000	2,428,928
25	Sep 4, 2021 22:02	5,645	45,586,816	17,061,000	1,003,000	2,441,216
26	Sep 4, 2021 22:02	5,647	73,082,623	18,071,662	0	2,265,088
27	Sep 4, 2021 22:05	5,649	45,476,939	16,069,000	2,008,000	2,441,216
28	Sep 4, 2021 22:02	5,649	61,107,120	18,078,340	0	2,269,184
29	Sep 4, 2021 22:02	5,651	44,310,903	16,075,000	2,009,000	2,338,816
30	Sep 4, 2021 22:05	5,651	98,644,150	18,082,834	0	2,269,184
31	Sep 4, 2021 22:02	5,674	65,734,313	18,156,859	0	2,269,184
32	Sep 4, 2021 22:02	5,679	76,567,227	18,172,340	0	2,273,280
33	Sep 4, 2021 22:02	5,681	46,206,113	17,169,000	1,009,000	2,342,912
34	Sep 4, 2021 22:05	5,724	59,409,162	18,315,953	0	2,265,088
35	Sep 4, 2021 22:05	5,791	68,602,685	18,530,755	0	2,260,992
36	Sep 4, 2021 22:02	5,811	97,477,767	18,595,938	0	2,265,088

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