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 24, 2022 11:55

Robert Burke

Score: 4,455

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 24, 2022 11:49	4,426	38,118,192	12,141,000	2,023,000	2,449,408
2	Jul 24, 2022 11:39	4,429	29,811,105	12,149,000	2,024,000	2,457,600
3	Jul 24, 2022 11:49	4,430	35,178,228	12,150,000	2,025,000	2,281,472
4	Jul 24, 2022 11:39	4,436	31,187,527	12,168,000	2,028,000	2,281,472
5	Jul 24, 2022 11:49	4,437	35,070,644	12,169,000	2,028,000	2,441,216
6	Jul 24, 2022 11:55	4,437	37,029,819	12,170,000	2,028,000	2,281,472
7	Jul 24, 2022 11:55	4,438	28,737,425	12,174,000	2,029,000	2,277,376
8	Jul 24, 2022 11:39	4,439	37,104,142	12,176,000	2,029,000	2,445,312
9	Jul 24, 2022 11:39	4,439	29,426,896	12,176,000	2,029,000	2,281,472
10	Jul 24, 2022 12:06	4,440	36,173,126	12,179,000	2,029,000	2,449,408
11	Jul 24, 2022 11:49	4,442	32,038,650	12,183,000	2,030,000	2,281,472
12	Jul 24, 2022 12:06	4,443	27,434,077	12,188,000	2,031,000	2,453,504
13	Jul 24, 2022 11:55	4,443	36,978,990	12,186,000	2,031,000	2,281,472
14	Jul 24, 2022 11:49	4,444	27,887,036	12,189,000	2,031,000	2,277,376
15	Jul 24, 2022 11:39	4,446	30,578,720	12,195,000	2,032,000	2,441,216
16	Jul 24, 2022 11:49	4,448	30,023,559	12,200,000	2,033,000	2,277,376
17	Jul 24, 2022 11:55	4,448	36,235,379	12,199,000	2,033,000	2,449,408
18	Jul 24, 2022 12:06	4,449	30,865,472	12,203,000	2,033,000	2,281,472
19	Jul 24, 2022 12:06	4,452	31,368,968	13,230,000	1,017,000	2,281,472
20	Jul 24, 2022 12:06	4,453	30,179,890	12,215,000	2,035,000	2,445,312
21	Jul 24, 2022 11:39	4,453	39,433,863	12,213,000	2,035,000	2,453,504
22	Jul 24, 2022 11:55	4,455	27,040,191	12,221,000	2,036,000	2,277,376
23	Jul 24, 2022 12:06	4,455	31,447,297	14,256,000	0	2,441,216
24	Jul 24, 2022 12:06	4,455	34,355,727	12,221,000	2,036,000	2,281,472
25	Jul 24, 2022 11:49	4,455	29,568,176	12,221,000	2,036,000	2,445,312
26	Jul 24, 2022 11:39	4,457	33,039,119	13,244,000	1,018,000	2,281,472
27	Jul 24, 2022 12:06	4,458	29,075,949	13,248,000	1,019,000	2,531,328
28	Jul 24, 2022 11:55	4,458	36,253,948	12,227,000	2,037,000	2,281,472
29	Jul 24, 2022 11:49	4,458	29,319,781	14,267,000	0	2,441,216
30	Jul 24, 2022 11:39	4,458	30,387,687	14,264,000	0	2,453,504
31	Jul 24, 2022 11:49	4,459	30,107,665	13,249,000	1,019,000	2,277,376
32	Jul 24, 2022 12:06	4,460	28,555,608	13,253,000	1,019,000	2,449,408
33	Jul 24, 2022 11:55	4,462	35,004,038	13,259,000	1,019,000	2,281,472
34	Jul 24, 2022 11:39	4,464	33,094,975	13,264,000	1,020,000	2,445,312
35	Jul 24, 2022 11:55	4,473	29,450,311	13,292,000	1,022,000	2,281,472
36	Jul 24, 2022 11:55	4,474	28,669,796	13,295,000	1,022,000	2,449,408
37	Jul 24, 2022 11:55	4,674	80,152,572	14,958,094	0	2,256,896
38	Jul 24, 2022 11:39	4,679	87,639,559	14,971,233	0	2,203,648
39	Jul 24, 2022 11:39	4,682	94,016,005	14,981,970	0	2,203,648
40	Jul 24, 2022 12:06	4,690	102,720,446	15,008,402	0	2,203,648
41	Jul 24, 2022 12:06	4,696	84,198,912	15,028,600	0	2,203,648
42	Jul 24, 2022 11:55	4,696	98,005,420	15,027,737	0	2,207,744
43	Jul 24, 2022 11:55	4,700	79,882,782	15,038,719	0	2,199,552
44	Jul 24, 2022 11:49	4,701	83,064,824	15,042,061	0	2,207,744
45	Jul 24, 2022 11:49	4,702	84,733,306	15,045,193	0	2,203,648
46	Jul 24, 2022 11:49	4,705	89,395,397	15,056,278	0	2,203,648
47	Jul 24, 2022 12:06	4,719	86,245,186	15,101,002	0	2,211,840
48	Jul 24, 2022 11:39	4,719	82,264,352	15,099,453	0	2,256,896

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