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 22:05

Andrey Tsvetkov

Score: 5,650

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 4, 2021 22:02	5,599	41,629,023	15,927,000	1,990,000	2,347,008
2	Sep 4, 2021 22:05	5,605	39,558,131	16,940,000	996,000	2,342,912
3	Sep 4, 2021 22:05	5,606	38,348,133	16,942,000	996,000	2,342,912
4	Sep 4, 2021 22:06	5,609	38,934,296	16,953,000	997,000	2,441,216
5	Sep 4, 2021 22:06	5,612	36,196,552	15,962,000	1,995,000	2,342,912
6	Sep 4, 2021 22:06	5,613	44,144,218	16,963,000	997,000	2,342,912
7	Sep 4, 2021 22:06	5,617	43,937,151	16,975,000	998,000	2,342,912
8	Sep 4, 2021 22:02	5,619	44,377,652	16,983,000	999,000	2,437,120
9	Sep 4, 2021 22:02	5,619	40,513,931	15,984,000	1,998,000	2,437,120
10	Sep 4, 2021 22:02	5,620	45,386,199	15,987,000	1,998,000	2,342,912
11	Sep 4, 2021 22:06	5,626	35,624,479	16,004,000	2,000,000	2,428,928
12	Sep 4, 2021 22:06	5,627	37,253,745	17,005,000	1,000,000	2,437,120
13	Sep 4, 2021 22:02	5,631	43,518,374	16,017,000	2,002,000	2,293,760
14	Sep 4, 2021 22:02	5,631	86,865,300	18,017,647	0	2,269,184
15	Sep 4, 2021 22:05	5,632	34,611,881	16,020,000	2,002,000	2,527,232
16	Sep 4, 2021 22:05	5,633	34,561,567	16,022,000	2,002,000	2,437,120
17	Sep 4, 2021 22:05	5,638	42,357,874	17,039,000	1,002,000	2,342,912
18	Sep 4, 2021 22:05	5,643	38,215,002	16,051,000	2,006,000	2,433,024
19	Sep 4, 2021 22:02	5,650	41,630,131	17,077,000	1,004,000	2,437,120
20	Sep 4, 2021 22:02	5,651	91,672,334	18,081,874	0	2,269,184
21	Sep 4, 2021 22:06	5,651	36,356,604	16,073,000	2,009,000	2,424,832
22	Sep 4, 2021 22:06	5,653	42,332,346	16,079,000	2,009,000	2,301,952
23	Sep 4, 2021 22:05	5,653	44,360,138	17,084,000	1,004,000	2,433,024
24	Sep 4, 2021 22:06	5,656	93,365,771	18,100,519	0	2,269,184
25	Sep 4, 2021 22:02	5,657	46,574,710	16,092,000	2,011,000	2,342,912
26	Sep 4, 2021 22:06	5,658	44,255,946	17,101,000	1,005,000	2,293,760
27	Sep 4, 2021 22:06	5,661	100,769,237	18,113,841	0	2,277,376
28	Sep 4, 2021 22:05	5,665	37,841,002	16,113,000	2,014,000	2,441,216
29	Sep 4, 2021 22:05	5,665	45,943,435	16,115,000	2,014,000	2,433,024
30	Sep 4, 2021 22:02	5,670	47,089,280	16,129,000	2,016,000	2,543,616
31	Sep 4, 2021 22:05	5,671	66,209,581	18,147,396	0	2,269,184
32	Sep 4, 2021 22:02	5,671	35,267,639	17,138,000	1,008,000	2,437,120
33	Sep 4, 2021 22:05	5,679	87,788,090	18,171,779	0	2,273,280
34	Sep 4, 2021 22:06	5,685	91,623,481	18,193,455	0	2,269,184
35	Sep 4, 2021 22:02	5,703	65,985,914	18,248,306	0	2,277,376
36	Sep 4, 2021 22:05	5,744	108,222,038	18,379,553	0	2,277,376

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