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 11, 2025 06:33

Ian Mckibben

Score: 5,490

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 11, 2025 06:33	5,453	35,170,525	16,424,000	1,026,000	2,285,568
2	Jan 11, 2025 06:40	5,458	38,498,018	16,437,000	1,027,000	2,289,664
3	Jan 11, 2025 06:40	5,459	40,108,266	16,442,000	1,027,000	2,273,280
4	Jan 11, 2025 06:39	5,462	39,894,533	16,449,000	1,028,000	2,289,664
5	Jan 11, 2025 06:39	5,463	34,726,435	16,453,000	1,028,000	2,273,280
6	Jan 11, 2025 06:33	5,469	37,617,161	17,501,000	0	2,277,376
7	Jan 11, 2025 06:40	5,469	40,636,254	16,471,000	1,029,000	2,289,664
8	Jan 11, 2025 06:39	5,470	36,115,802	16,475,000	1,029,000	2,289,664
9	Jan 11, 2025 06:39	5,471	43,191,180	16,479,000	1,029,000	2,269,184
10	Jan 11, 2025 06:40	5,473	34,921,194	16,482,000	1,030,000	2,289,664
11	Jan 11, 2025 06:39	5,478	33,452,849	16,499,000	1,031,000	2,289,664
12	Jan 11, 2025 06:40	5,482	40,539,294	16,510,000	1,031,000	2,396,160
13	Jan 11, 2025 06:40	5,484	44,543,963	16,518,000	1,032,000	2,289,664
14	Jan 11, 2025 06:40	5,486	34,520,701	16,524,000	1,032,000	2,289,664
15	Jan 11, 2025 06:33	5,487	43,347,304	16,527,000	1,032,000	2,277,376
16	Jan 11, 2025 06:40	5,488	32,893,203	16,530,000	1,033,000	2,289,664
17	Jan 11, 2025 06:33	5,489	36,685,351	16,532,000	1,033,000	2,527,232
18	Jan 11, 2025 06:41	5,489	33,288,120	16,531,000	1,033,000	2,273,280
19	Jan 11, 2025 06:40	5,490	36,945,736	16,534,000	1,033,000	2,289,664
20	Jan 11, 2025 06:40	5,491	34,898,209	16,538,000	1,033,000	2,289,664
21	Jan 11, 2025 06:39	5,492	44,459,552	16,540,000	1,033,000	2,273,280
22	Jan 11, 2025 06:41	5,493	35,025,932	16,543,000	1,033,000	2,289,664
23	Jan 11, 2025 06:40	5,495	41,326,338	16,551,000	1,034,000	2,273,280
24	Jan 11, 2025 06:33	5,499	38,886,174	17,596,000	0	2,273,280
25	Jan 11, 2025 06:40	5,504	50,701,717	16,577,000	1,036,000	2,289,664
26	Jan 11, 2025 06:33	5,504	44,025,272	17,612,000	0	2,289,664
27	Jan 11, 2025 06:41	5,505	43,641,763	16,580,000	1,036,000	2,273,280
28	Jan 11, 2025 06:40	5,511	49,641,460	16,599,000	1,037,000	2,289,664
29	Jan 11, 2025 06:33	5,511	43,904,092	16,597,000	1,037,000	2,355,200
30	Jan 11, 2025 06:40	5,513	45,790,191	16,605,000	1,037,000	2,273,280
31	Jan 11, 2025 06:33	5,516	43,333,670	16,613,000	1,038,000	2,367,488
32	Jan 11, 2025 06:39	5,518	47,974,390	16,619,000	1,038,000	2,289,664
33	Jan 11, 2025 06:33	5,528	48,103,021	17,690,000	0	2,273,280
34	Jan 11, 2025 06:39	5,538	44,882,869	16,681,000	1,042,000	2,289,664
35	Jan 11, 2025 06:39	5,542	43,687,495	16,690,000	1,043,000	2,289,664
36	Jan 11, 2025 06:40	5,583	35,089,918	16,875,000	992,000	2,273,280

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