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 20, 2024 10:57

Matt Stuchlik

Score: 4,739

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 20, 2024 10:57	4,721	34,228,087	13,092,000	2,014,000	2,285,568
2	Jul 20, 2024 10:57	4,721	32,876,734	13,094,000	2,014,000	2,289,664
3	Jul 20, 2024 10:57	4,723	32,098,800	13,099,000	2,015,000	2,289,664
4	Jul 20, 2024 10:57	4,723	35,068,038	14,108,000	1,007,000	2,289,664
5	Jul 20, 2024 10:57	4,727	29,773,618	13,110,000	2,017,000	2,289,664
6	Jul 20, 2024 10:57	4,727	32,080,347	14,118,000	1,008,000	2,289,664
7	Jul 20, 2024 10:57	4,728	32,813,076	13,113,000	2,017,000	2,289,664
8	Jul 20, 2024 10:57	4,729	34,903,426	14,125,000	1,008,000	2,289,664
9	Jul 20, 2024 10:57	4,731	39,900,291	14,129,000	1,009,000	2,273,280
10	Jul 20, 2024 10:57	4,731	31,797,700	14,131,000	1,009,000	2,269,184
11	Jul 20, 2024 10:57	4,732	35,780,126	14,132,000	1,009,000	2,273,280
12	Jul 20, 2024 10:57	4,733	33,977,118	13,128,000	2,019,000	2,289,664
13	Jul 20, 2024 10:57	4,734	32,096,267	13,130,000	2,020,000	2,289,664
14	Jul 20, 2024 10:57	4,735	34,576,637	13,131,000	2,020,000	2,289,664
15	Jul 20, 2024 10:57	4,735	32,851,827	14,143,000	1,010,000	2,269,184
16	Jul 20, 2024 10:57	4,736	41,197,538	13,134,000	2,020,000	2,289,664
17	Jul 20, 2024 10:57	4,738	33,085,986	13,139,000	2,021,000	2,531,328
18	Jul 20, 2024 10:57	4,738	37,636,962	13,142,000	2,021,000	2,285,568
19	Jul 20, 2024 10:57	4,739	39,995,117	14,155,000	1,011,000	2,289,664
20	Jul 20, 2024 10:57	4,741	34,547,255	13,148,000	2,022,000	2,277,376
21	Jul 20, 2024 10:57	4,745	37,179,466	14,171,000	1,012,000	2,289,664
22	Jul 20, 2024 10:57	4,750	38,437,742	13,174,000	2,026,000	2,289,664
23	Jul 20, 2024 10:57	4,755	35,384,769	13,188,000	2,029,000	2,289,664
24	Jul 20, 2024 10:57	4,764	42,537,588	13,213,000	2,032,000	2,531,328
25	Jul 20, 2024 10:57	4,768	37,919,360	13,224,000	2,034,000	2,269,184
26	Jul 20, 2024 10:57	4,770	32,641,357	13,230,000	2,035,000	2,273,280
27	Jul 20, 2024 10:57	4,780	37,438,698	14,276,000	1,019,000	2,531,328
28	Jul 20, 2024 10:57	5,019	84,060,258	16,062,161	0	2,289,664
29	Jul 20, 2024 10:57	5,024	103,999,398	16,075,876	0	2,281,472
30	Jul 20, 2024 10:57	5,026	82,703,273	16,082,660	0	2,289,664
31	Jul 20, 2024 10:57	5,028	96,759,391	16,090,140	0	2,289,664
32	Jul 20, 2024 10:57	5,046	69,688,396	16,146,072	0	2,285,568
33	Jul 20, 2024 10:57	5,048	85,447,328	16,155,009	0	2,285,568
34	Jul 20, 2024 10:57	5,061	98,896,322	16,194,697	0	2,289,664
35	Jul 20, 2024 10:57	5,083	72,217,442	16,266,223	0	2,293,760
36	Jul 20, 2024 10:57	5,085	80,003,649	16,272,978	0	2,293,760

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