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 listMay 26, 2021 00:00

Mikhail Dektyarev

Score: 4,668

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 25, 2021 23:58	4,634	30,363,014	12,853,000	1,977,000	2,404,352
2	May 25, 2021 23:58	4,636	41,941,718	14,834,000	0	2,281,472
3	May 25, 2021 23:58	4,645	38,924,732	12,882,000	1,981,000	2,478,080
4	May 25, 2021 23:58	4,646	41,321,371	14,868,000	0	2,281,472
5	May 25, 2021 23:58	4,646	32,256,399	14,866,000	0	2,281,472
6	May 25, 2021 23:58	4,647	42,042,670	13,880,000	991,000	2,281,472
7	May 25, 2021 23:58	4,647	29,204,049	12,888,000	1,982,000	2,281,472
8	May 25, 2021 23:58	4,649	34,420,040	13,885,000	991,000	2,404,352
9	May 25, 2021 23:58	4,649	31,863,274	12,895,000	1,983,000	2,392,064
10	May 25, 2021 23:58	4,649	34,629,812	12,894,000	1,983,000	2,400,256
11	May 26, 2021 00:00	4,649	34,883,242	12,895,000	1,983,000	2,396,160
12	May 26, 2021 00:00	4,650	31,762,289	13,889,000	992,000	2,400,256
13	May 25, 2021 23:58	4,651	43,012,856	14,883,000	0	2,523,136
14	May 26, 2021 00:00	4,651	30,654,306	13,892,000	992,000	2,404,352
15	May 25, 2021 23:58	4,654	33,192,343	12,907,000	1,985,000	2,281,472
16	May 26, 2021 00:00	4,664	46,753,867	12,935,000	1,990,000	2,281,472
17	May 26, 2021 00:00	4,667	38,532,798	12,944,000	1,991,000	2,281,472
18	May 25, 2021 23:58	4,668	32,289,582	12,946,000	1,991,000	2,400,256
19	May 25, 2021 23:58	4,668	33,798,673	12,946,000	1,991,000	2,273,280
20	May 26, 2021 00:00	4,668	32,188,996	13,941,000	995,000	2,281,472
21	May 26, 2021 00:00	4,669	32,410,445	13,944,000	996,000	2,396,160
22	May 25, 2021 23:58	4,674	36,091,874	13,959,000	997,000	2,400,256
23	May 25, 2021 23:58	4,683	34,196,456	13,988,000	999,000	2,281,472
24	May 26, 2021 00:00	4,686	38,104,688	13,997,000	999,000	2,396,160
25	May 26, 2021 00:00	4,688	41,399,045	13,003,000	2,000,000	2,281,472
26	May 25, 2021 23:58	4,690	39,055,451	13,008,000	2,001,000	2,281,472
27	May 25, 2021 23:58	4,694	34,213,458	13,019,000	2,003,000	2,277,376
28	May 26, 2021 00:00	4,846	41,337,169	15,507,827	0	2,301,952
29	May 25, 2021 23:58	4,849	40,178,688	15,515,879	0	2,293,760
30	May 25, 2021 23:58	4,864	39,672,881	15,563,857	0	2,289,664
31	May 25, 2021 23:58	4,865	94,381,011	15,569,367	0	2,297,856
32	May 26, 2021 00:00	4,870	88,250,241	15,583,032	0	2,297,856
33	May 26, 2021 00:00	4,872	54,398,378	15,589,241	0	2,285,568
34	May 25, 2021 23:58	4,962	48,010,990	15,878,871	0	2,260,992
35	May 25, 2021 23:58	5,084	59,983,584	16,269,567	0	2,293,760
36	May 25, 2021 23:58	5,434	87,211,767	17,387,451	0	2,289,664

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