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 24, 2021 13:08

Dmitry Dolgopolov

Score: 5,066

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 24, 2021 13:09	5,023	40,292,073	14,066,000	2,009,000	2,383,872
2	May 24, 2021 13:12	5,033	33,431,414	14,091,000	2,013,000	2,265,088
3	May 24, 2021 13:12	5,034	32,089,781	14,096,000	2,013,000	2,265,088
4	May 24, 2021 13:09	5,034	35,533,097	14,097,000	2,013,000	2,265,088
5	May 24, 2021 13:08	5,038	40,214,776	14,108,000	2,015,000	2,387,968
6	May 24, 2021 13:08	5,043	40,817,753	14,122,000	2,017,000	2,265,088
7	May 24, 2021 13:12	5,044	37,153,445	14,125,000	2,017,000	2,510,848
8	May 24, 2021 13:08	5,046	33,637,523	14,129,000	2,018,000	2,383,872
9	May 24, 2021 13:08	5,046	33,726,510	14,128,000	2,018,000	2,265,088
10	May 24, 2021 13:09	5,049	42,392,619	15,148,000	1,009,000	2,383,872
11	May 24, 2021 13:09	5,052	43,760,323	14,145,000	2,020,000	2,265,088
12	May 24, 2021 13:09	5,053	42,290,423	14,150,000	2,021,000	2,265,088
13	May 24, 2021 13:12	5,056	39,100,738	14,156,000	2,022,000	2,265,088
14	May 24, 2021 13:12	5,056	45,005,920	15,169,000	1,011,000	2,383,872
15	May 24, 2021 13:08	5,057	34,719,216	15,170,000	1,011,000	2,265,088
16	May 24, 2021 13:08	5,059	44,704,996	14,167,000	2,023,000	2,265,088
17	May 24, 2021 13:09	5,064	42,346,575	14,181,000	2,025,000	2,265,088
18	May 24, 2021 13:08	5,066	33,849,993	14,185,000	2,026,000	2,265,088
19	May 24, 2021 13:08	5,066	31,574,416	14,185,000	2,026,000	2,383,872
20	May 24, 2021 13:08	5,074	37,301,366	14,208,000	2,029,000	2,383,872
21	May 24, 2021 13:12	5,076	46,475,456	15,229,000	1,015,000	2,510,848
22	May 24, 2021 13:09	5,078	44,759,966	15,233,000	1,015,000	2,265,088
23	May 24, 2021 13:12	5,079	45,061,465	15,239,000	1,015,000	2,265,088
24	May 24, 2021 13:12	5,080	41,681,023	15,240,000	1,016,000	2,265,088
25	May 24, 2021 13:12	5,081	43,507,842	15,242,000	1,016,000	2,269,184
26	May 24, 2021 13:09	5,082	33,440,342	15,245,000	1,016,000	2,265,088
27	May 24, 2021 13:09	5,091	43,770,139	15,273,000	1,018,000	2,265,088
28	May 24, 2021 13:12	5,276	86,507,674	16,883,093	0	2,277,376
29	May 24, 2021 13:09	5,278	84,423,927	16,889,799	0	2,289,664
30	May 24, 2021 13:08	5,284	64,624,184	16,909,261	0	2,281,472
31	May 24, 2021 13:09	5,286	73,446,838	16,915,730	0	2,240,512
32	May 24, 2021 13:12	5,291	84,279,284	16,930,065	0	2,273,280
33	May 24, 2021 13:08	5,297	75,477,571	16,951,477	0	2,277,376
34	May 24, 2021 13:08	5,299	89,014,135	16,956,200	0	2,273,280
35	May 24, 2021 13:09	5,302	70,699,276	16,965,554	0	2,281,472
36	May 24, 2021 13:12	5,309	81,461,140	16,987,357	0	2,277,376

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