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 27, 2022 11:38

Robert Burke

Score: 4,456

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 27, 2022 11:38	4,430	30,409,504	12,150,000	2,025,000	2,453,504
2	Jul 27, 2022 11:38	4,433	31,393,914	12,161,000	2,026,000	2,281,472
3	Jul 27, 2022 11:38	4,433	36,849,131	12,159,000	2,026,000	2,449,408
4	Jul 27, 2022 11:38	4,433	29,543,444	12,161,000	2,026,000	2,281,472
5	Jul 27, 2022 11:38	4,436	35,424,204	12,167,000	2,027,000	2,281,472
6	Jul 27, 2022 11:38	4,438	29,773,662	12,174,000	2,029,000	2,281,472
7	Jul 27, 2022 11:38	4,439	29,552,319	12,176,000	2,029,000	2,281,472
8	Jul 27, 2022 11:38	4,440	33,564,488	12,178,000	2,029,000	2,449,408
9	Jul 27, 2022 11:38	4,440	30,639,782	12,178,000	2,029,000	2,445,312
10	Jul 27, 2022 11:38	4,442	46,764,739	12,185,000	2,030,000	2,457,600
11	Jul 27, 2022 11:38	4,442	36,709,616	12,183,000	2,030,000	2,281,472
12	Jul 27, 2022 11:38	4,443	29,659,117	13,203,000	1,015,000	2,281,472
13	Jul 27, 2022 11:38	4,448	33,140,890	12,199,000	2,033,000	2,445,312
14	Jul 27, 2022 11:38	4,452	33,070,122	12,210,000	2,035,000	2,281,472
15	Jul 27, 2022 11:38	4,452	38,771,686	12,210,000	2,035,000	2,461,696
16	Jul 27, 2022 11:38	4,452	32,334,310	12,211,000	2,035,000	2,453,504
17	Jul 27, 2022 11:38	4,453	39,947,211	13,232,000	1,017,000	2,281,472
18	Jul 27, 2022 11:38	4,456	33,839,204	13,241,000	1,018,000	2,281,472
19	Jul 27, 2022 11:38	4,456	37,055,101	13,241,000	1,018,000	2,281,472
20	Jul 27, 2022 11:38	4,457	44,500,995	12,226,000	2,037,000	2,449,408
21	Jul 27, 2022 11:38	4,457	35,588,327	14,261,000	0	2,445,312
22	Jul 27, 2022 11:38	4,458	29,003,640	13,248,000	1,019,000	2,449,408
23	Jul 27, 2022 11:38	4,461	34,608,149	13,257,000	1,019,000	2,281,472
24	Jul 27, 2022 11:38	4,469	34,530,772	13,280,000	1,021,000	2,281,472
25	Jul 27, 2022 11:38	4,470	28,732,155	13,283,000	1,021,000	2,445,312
26	Jul 27, 2022 11:38	4,473	31,667,228	13,293,000	1,022,000	2,445,312
27	Jul 27, 2022 11:38	4,475	29,640,415	13,297,000	1,022,000	2,277,376
28	Jul 27, 2022 11:38	4,682	89,031,846	14,982,862	0	2,199,552
29	Jul 27, 2022 11:38	4,686	77,748,927	14,995,101	0	2,203,648
30	Jul 27, 2022 11:38	4,689	77,428,700	15,004,675	0	2,203,648
31	Jul 27, 2022 11:38	4,701	82,936,155	15,043,227	0	2,260,992
32	Jul 27, 2022 11:38	4,701	78,215,075	15,042,360	0	2,203,648
33	Jul 27, 2022 11:38	4,715	79,073,146	15,087,919	0	2,195,456
34	Jul 27, 2022 11:38	4,717	85,239,578	15,094,275	0	2,211,840
35	Jul 27, 2022 11:38	4,722	64,403,658	15,111,446	0	2,199,552
36	Jul 27, 2022 11:38	4,748	82,031,907	15,193,114	0	2,203,648

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