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 listJul 13, 2021 19:24

Andrey Tsvetkov

Score: 5,702

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 13, 2021 19:24	5,674	34,070,391	16,141,000	2,017,000	2,527,232
2	Jul 13, 2021 19:24	5,683	41,325,907	15,156,000	3,031,000	2,523,136
3	Jul 13, 2021 19:24	5,684	40,479,030	16,169,000	2,021,000	2,531,328
4	Jul 13, 2021 19:24	5,686	91,310,773	18,195,387	0	2,232,320
5	Jul 13, 2021 19:24	5,686	41,462,077	16,174,000	2,021,000	2,334,720
6	Jul 13, 2021 19:24	5,686	47,941,071	16,174,000	2,021,000	2,334,720
7	Jul 13, 2021 19:24	5,689	42,431,428	15,172,000	3,034,000	2,334,720
8	Jul 13, 2021 19:24	5,689	34,922,542	16,183,000	2,022,000	2,334,720
9	Jul 13, 2021 19:24	5,689	38,784,784	16,182,000	2,022,000	2,334,720
10	Jul 13, 2021 19:24	5,692	79,554,829	18,213,690	0	2,232,320
11	Jul 13, 2021 19:24	5,694	72,627,952	18,222,055	0	2,228,224
12	Jul 13, 2021 19:24	5,694	37,288,096	16,198,000	2,024,000	2,334,720
13	Jul 13, 2021 19:24	5,696	42,093,462	16,203,000	2,025,000	2,527,232
14	Jul 13, 2021 19:24	5,697	47,527,112	16,206,000	2,025,000	2,523,136
15	Jul 13, 2021 19:24	5,698	45,100,779	15,195,000	3,039,000	2,334,720
16	Jul 13, 2021 19:24	5,699	41,713,641	15,198,000	3,039,000	2,527,232
17	Jul 13, 2021 19:24	5,699	35,619,656	16,211,000	2,026,000	2,334,720
18	Jul 13, 2021 19:24	5,701	42,501,805	15,203,000	3,040,000	2,334,720
19	Jul 13, 2021 19:24	5,702	39,905,530	16,219,000	2,027,000	2,334,720
20	Jul 13, 2021 19:24	5,703	35,784,496	15,208,000	3,041,000	2,531,328
21	Jul 13, 2021 19:24	5,707	54,587,266	15,379,000	2,883,000	2,523,136
22	Jul 13, 2021 19:24	5,707	44,996,342	16,234,000	2,029,000	2,523,136
23	Jul 13, 2021 19:24	5,708	81,664,861	18,265,970	0	2,240,512
24	Jul 13, 2021 19:24	5,708	78,686,538	18,265,518	0	2,228,224
25	Jul 13, 2021 19:24	5,717	35,944,955	16,263,000	2,032,000	2,334,720
26	Jul 13, 2021 19:24	5,729	44,591,567	16,297,000	2,037,000	2,334,720
27	Jul 13, 2021 19:24	5,733	42,125,167	16,306,000	2,038,000	2,527,232
28	Jul 13, 2021 19:24	5,738	38,852,908	15,300,000	3,060,000	2,334,720
29	Jul 13, 2021 19:24	5,740	51,761,724	16,327,000	2,040,000	2,519,040
30	Jul 13, 2021 19:24	5,742	43,012,104	16,332,000	2,041,000	2,334,720
31	Jul 13, 2021 19:24	5,743	42,050,090	16,336,000	2,042,000	2,531,328
32	Jul 13, 2021 19:24	5,745	60,679,431	18,382,476	0	2,228,224
33	Jul 13, 2021 19:24	5,757	36,352,250	16,376,000	2,047,000	2,334,720
34	Jul 13, 2021 19:24	5,835	82,317,031	18,672,014	0	2,236,416
35	Jul 13, 2021 19:24	5,894	98,279,984	18,861,278	0	2,240,512
36	Jul 13, 2021 19:24	5,895	83,188,638	18,864,276	0	2,228,224

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