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 listJun 30, 2023 16:48

Alexander Monakov

Score: 4,552

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 30, 2023 16:50	4,500	32,611,555	14,399,000	0	2,494,464
2	Jun 30, 2023 16:48	4,503	39,752,150	14,411,000	0	2,277,376
3	Jun 30, 2023 16:48	4,512	29,989,582	14,439,000	0	2,277,376
4	Jun 30, 2023 16:50	4,513	31,513,247	14,443,000	0	2,486,272
5	Jun 30, 2023 16:48	4,515	29,753,277	14,448,000	0	2,273,280
6	Jun 30, 2023 16:48	4,516	45,383,512	14,450,000	0	2,277,376
7	Jun 30, 2023 16:48	4,516	32,525,190	14,450,000	0	2,277,376
8	Jun 30, 2023 16:50	4,517	29,470,139	14,453,000	0	2,498,560
9	Jun 30, 2023 16:48	4,522	34,653,525	14,471,000	0	2,277,376
10	Jun 30, 2023 16:50	4,528	31,408,050	14,489,000	0	2,277,376
11	Jun 30, 2023 16:50	4,530	35,276,844	14,496,000	0	2,490,368
12	Jun 30, 2023 16:48	4,533	29,595,420	14,505,000	0	2,498,560
13	Jun 30, 2023 16:48	4,534	35,028,924	14,509,000	0	2,502,656
14	Jun 30, 2023 16:48	4,536	32,224,393	14,516,000	0	2,494,464
15	Jun 30, 2023 16:50	4,538	31,990,674	14,520,000	0	2,498,560
16	Jun 30, 2023 16:48	4,542	31,816,605	14,535,000	0	2,277,376
17	Jun 30, 2023 16:50	4,542	31,102,564	13,496,000	1,038,000	2,502,656
18	Jun 30, 2023 16:48	4,543	35,969,578	14,538,000	0	2,277,376
19	Jun 30, 2023 16:48	4,552	30,868,202	13,525,000	1,040,000	2,498,560
20	Jun 30, 2023 16:48	4,554	29,256,648	14,573,000	0	2,498,560
21	Jun 30, 2023 16:50	4,555	32,481,525	14,575,000	0	2,277,376
22	Jun 30, 2023 16:48	4,560	37,616,174	14,593,000	0	2,498,560
23	Jun 30, 2023 16:50	4,562	36,053,893	14,599,000	0	2,494,464
24	Jun 30, 2023 16:48	4,562	31,329,432	14,597,000	0	2,277,376
25	Jun 30, 2023 16:48	4,565	37,885,678	13,635,000	973,000	2,277,376
26	Jun 30, 2023 16:48	4,573	39,518,557	13,587,000	1,045,000	2,494,464
27	Jun 30, 2023 16:48	4,573	36,469,368	14,635,000	0	2,535,424
28	Jun 30, 2023 16:48	4,754	71,489,036	15,211,925	0	2,256,896
29	Jun 30, 2023 16:50	4,758	81,576,792	15,226,669	0	2,244,608
30	Jun 30, 2023 16:48	4,759	72,656,581	15,228,761	0	2,248,704
31	Jun 30, 2023 16:48	4,768	86,191,118	15,258,283	0	2,240,512
32	Jun 30, 2023 16:48	4,773	89,453,000	15,273,928	0	2,236,416
33	Jun 30, 2023 16:50	4,791	87,425,508	15,331,409	0	2,248,704
34	Jun 30, 2023 16:48	4,802	72,291,306	15,365,714	0	2,248,704
35	Jun 30, 2023 16:48	4,804	80,534,743	15,371,228	0	2,248,704
36	Jun 30, 2023 16:50	4,834	76,757,550	15,470,388	0	2,236,416

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