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 listJan 10, 2025 00:13

Ian Mckibben

Score: 5,900

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 10, 2025 00:13	5,892	46,106,426	17,861,000	992,000	2,289,664
2	Jan 10, 2025 00:13	5,893	45,831,202	16,872,000	1,984,000	2,289,664
3	Jan 10, 2025 00:14	5,894	49,768,777	16,875,000	1,985,000	2,273,280
4	Jan 10, 2025 00:13	5,894	49,152,216	16,877,000	1,985,000	2,289,664
5	Jan 10, 2025 00:11	5,895	44,821,913	16,880,000	1,985,000	2,289,664
6	Jan 10, 2025 00:14	5,895	51,524,338	16,878,000	1,985,000	2,289,664
7	Jan 10, 2025 00:11	5,895	46,405,558	17,872,000	992,000	2,289,664
8	Jan 10, 2025 00:14	5,896	36,395,940	16,881,000	1,986,000	2,277,376
9	Jan 10, 2025 00:13	5,896	49,586,275	16,882,000	1,986,000	2,273,280
10	Jan 10, 2025 00:14	5,897	47,317,727	16,885,000	1,986,000	2,273,280
11	Jan 10, 2025 00:14	5,897	35,764,985	16,885,000	1,986,000	2,289,664
12	Jan 10, 2025 00:11	5,897	44,880,699	17,877,000	993,000	2,273,280
13	Jan 10, 2025 00:13	5,897	49,691,697	17,878,000	993,000	2,265,088
14	Jan 10, 2025 00:14	5,898	49,431,263	16,887,000	1,986,000	2,289,664
15	Jan 10, 2025 00:11	5,898	36,159,558	16,887,000	1,986,000	2,289,664
16	Jan 10, 2025 00:13	5,898	39,995,735	17,882,000	993,000	2,289,664
17	Jan 10, 2025 00:11	5,900	49,322,606	16,892,000	1,987,000	2,289,664
18	Jan 10, 2025 00:13	5,900	45,032,089	17,887,000	993,000	2,289,664
19	Jan 10, 2025 00:11	5,901	50,919,351	16,897,000	1,987,000	2,265,088
20	Jan 10, 2025 00:11	5,903	41,375,388	17,894,000	994,000	2,273,280
21	Jan 10, 2025 00:14	5,903	50,557,302	16,900,000	1,988,000	2,269,184
22	Jan 10, 2025 00:11	5,906	42,870,667	16,911,000	1,989,000	2,281,472
23	Jan 10, 2025 00:14	5,908	50,640,826	17,911,000	995,000	2,289,664
24	Jan 10, 2025 00:14	5,908	41,954,499	16,917,000	1,990,000	2,289,664
25	Jan 10, 2025 00:13	5,909	43,098,213	16,919,000	1,990,000	2,265,088
26	Jan 10, 2025 00:11	5,928	36,377,836	16,972,000	1,996,000	2,277,376
27	Jan 10, 2025 00:13	5,931	51,978,458	16,981,000	1,997,000	2,527,232
28	Jan 10, 2025 00:13	5,960	47,270,975	18,070,000	1,003,000	2,289,664
29	Jan 10, 2025 00:13	5,973	44,993,232	17,103,000	2,012,000	2,273,280
30	Jan 10, 2025 00:13	5,987	47,402,015	18,149,000	1,008,000	2,289,664
31	Jan 10, 2025 00:13	6,069	42,918,322	17,377,000	2,044,000	2,289,664
32	Jan 10, 2025 00:13	6,121	48,028,214	18,557,000	1,030,000	2,289,664
33	Jan 10, 2025 00:13	6,213	41,390,965	17,895,000	1,988,000	2,277,376

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