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 11:28

Robert Burke

Score: 4,458

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 27, 2022 11:28	4,427	32,681,562	12,142,000	2,023,000	2,453,504
2	Jul 27, 2022 11:29	4,430	34,186,805	12,152,000	2,025,000	2,281,472
3	Jul 27, 2022 11:29	4,437	30,327,517	12,170,000	2,028,000	2,281,472
4	Jul 27, 2022 11:29	4,437	34,100,377	12,170,000	2,028,000	2,281,472
5	Jul 27, 2022 11:28	4,437	34,948,949	12,171,000	2,028,000	2,281,472
6	Jul 27, 2022 11:29	4,437	30,858,022	12,171,000	2,028,000	2,449,408
7	Jul 27, 2022 11:28	4,439	39,006,946	12,175,000	2,029,000	2,453,504
8	Jul 27, 2022 11:29	4,441	26,818,983	12,180,000	2,030,000	2,281,472
9	Jul 27, 2022 11:29	4,448	33,181,174	12,200,000	2,033,000	2,281,472
10	Jul 27, 2022 11:29	4,450	32,481,026	12,207,000	2,034,000	2,281,472
11	Jul 27, 2022 11:29	4,450	35,065,479	12,207,000	2,034,000	2,449,408
12	Jul 27, 2022 11:29	4,452	36,799,263	12,210,000	2,035,000	2,441,216
13	Jul 27, 2022 11:29	4,453	30,710,741	12,214,000	2,035,000	2,281,472
14	Jul 27, 2022 11:29	4,453	32,658,327	12,215,000	2,035,000	2,453,504
15	Jul 27, 2022 11:28	4,454	31,910,309	12,217,000	2,036,000	2,437,120
16	Jul 27, 2022 11:29	4,454	34,909,913	12,216,000	2,036,000	2,281,472
17	Jul 27, 2022 11:28	4,455	27,720,965	12,220,000	2,036,000	2,281,472
18	Jul 27, 2022 11:28	4,456	30,873,996	13,242,000	1,018,000	2,281,472
19	Jul 27, 2022 11:28	4,458	33,260,440	13,247,000	1,019,000	2,281,472
20	Jul 27, 2022 11:29	4,460	34,049,496	13,253,000	1,019,000	2,535,424
21	Jul 27, 2022 11:29	4,461	36,393,347	12,237,000	2,039,000	2,449,408
22	Jul 27, 2022 11:29	4,462	31,192,100	13,259,000	1,019,000	2,449,408
23	Jul 27, 2022 11:28	4,462	36,042,208	12,239,000	2,039,000	2,445,312
24	Jul 27, 2022 11:29	4,469	36,528,792	13,279,000	1,021,000	2,285,568
25	Jul 27, 2022 11:29	4,469	31,202,364	14,300,000	0	2,449,408
26	Jul 27, 2022 11:29	4,475	29,708,961	12,411,000	1,909,000	2,281,472
27	Jul 27, 2022 11:28	4,477	31,007,986	12,279,000	2,046,000	2,281,472
28	Jul 27, 2022 11:29	4,699	97,607,928	15,038,035	0	2,211,840
29	Jul 27, 2022 11:29	4,705	81,718,294	15,055,488	0	2,195,456
30	Jul 27, 2022 11:29	4,708	99,791,002	15,065,913	0	2,211,840
31	Jul 27, 2022 11:28	4,709	85,362,897	15,068,747	0	2,215,936
32	Jul 27, 2022 11:29	4,717	94,006,735	15,094,040	0	2,199,552
33	Jul 27, 2022 11:29	4,718	79,575,188	15,098,811	0	2,203,648
34	Jul 27, 2022 11:28	4,724	92,552,364	15,115,447	0	2,199,552
35	Jul 27, 2022 11:28	4,732	60,810,799	15,143,923	0	2,203,648
36	Jul 27, 2022 11:29	4,746	86,369,616	15,187,592	0	2,203,648

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