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 listJun 20, 2021 19:04

Andrey Tsvetkov

Score: 5,743

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 20, 2021 19:04	5,683	38,704,897	17,115,000	1,069,000	2,514,944
2	Jun 20, 2021 19:04	5,693	39,742,862	16,076,000	2,143,000	2,334,720
3	Jun 20, 2021 19:04	5,695	36,534,168	16,081,000	2,144,000	2,334,720
4	Jun 20, 2021 19:04	5,697	36,791,149	17,159,000	1,072,000	2,334,720
5	Jun 20, 2021 19:04	5,702	37,903,934	17,172,000	1,073,000	2,326,528
6	Jun 20, 2021 19:04	5,703	41,754,602	17,176,000	1,073,000	2,334,720
7	Jun 20, 2021 19:04	5,705	37,870,793	16,109,000	2,147,000	2,379,776
8	Jun 20, 2021 19:04	5,705	33,368,772	17,241,000	1,014,000	2,523,136
9	Jun 20, 2021 19:04	5,707	33,891,836	17,188,000	1,074,000	2,334,720
10	Jun 20, 2021 19:04	5,710	41,260,714	16,242,000	2,030,000	2,514,944
11	Jun 20, 2021 19:04	5,714	48,563,610	18,286,000	0	2,322,432
12	Jun 20, 2021 19:04	5,718	44,408,319	17,221,000	1,076,000	2,330,624
13	Jun 20, 2021 19:04	5,718	36,141,579	17,280,000	1,016,000	2,334,720
14	Jun 20, 2021 19:04	5,720	41,220,448	16,152,000	2,153,000	2,514,944
15	Jun 20, 2021 19:04	5,724	40,997,339	16,281,000	2,035,000	2,371,584
16	Jun 20, 2021 19:04	5,733	35,358,585	15,287,000	3,057,000	2,322,432
17	Jun 20, 2021 19:04	5,735	37,180,115	17,272,000	1,079,000	2,334,720
18	Jun 20, 2021 19:04	5,737	44,333,872	16,319,000	2,039,000	2,334,720
19	Jun 20, 2021 19:04	5,743	42,024,632	17,358,000	1,021,000	2,519,040
20	Jun 20, 2021 19:04	5,745	39,199,776	16,342,000	2,042,000	2,338,816
21	Jun 20, 2021 19:04	5,748	37,860,658	18,395,000	0	2,519,040
22	Jun 20, 2021 19:04	5,752	43,902,802	18,407,000	0	2,334,720
23	Jun 20, 2021 19:04	5,753	33,607,379	16,364,000	2,045,000	2,310,144
24	Jun 20, 2021 19:04	5,753	45,360,375	16,363,000	2,045,000	2,514,944
25	Jun 20, 2021 19:04	5,756	40,555,265	17,395,000	1,023,000	2,359,296
26	Jun 20, 2021 19:04	5,764	40,073,026	15,370,000	3,074,000	2,334,720
27	Jun 20, 2021 19:04	5,767	36,476,207	16,405,000	2,050,000	2,506,752
28	Jun 20, 2021 19:04	5,865	87,049,234	18,766,583	0	2,215,936
29	Jun 20, 2021 19:04	5,873	78,713,953	18,794,398	0	2,228,224
30	Jun 20, 2021 19:04	5,873	95,627,789	18,793,482	0	2,232,320
31	Jun 20, 2021 19:04	5,880	96,377,035	18,816,082	0	2,224,128
32	Jun 20, 2021 19:04	5,888	66,848,869	18,841,942	0	2,224,128
33	Jun 20, 2021 19:04	5,907	101,820,586	18,901,461	0	2,232,320
34	Jun 20, 2021 19:04	5,912	86,973,696	18,917,964	0	2,228,224
35	Jun 20, 2021 19:04	5,942	90,668,262	19,015,531	0	2,228,224
36	Jun 20, 2021 19:04	5,944	86,049,748	19,020,116	0	2,228,224

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