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 22, 2022 22:54

Robert Burke

Score: 4,723

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 22, 2022 22:54	4,688	38,214,198	13,002,000	2,000,000	2,445,312
2	Jul 22, 2022 22:54	4,690	30,543,835	13,008,000	2,001,000	2,281,472
3	Jul 22, 2022 22:54	4,697	37,432,208	13,026,000	2,004,000	2,281,472
4	Jul 22, 2022 22:54	4,700	36,241,730	13,034,000	2,005,000	2,457,600
5	Jul 22, 2022 22:54	4,702	31,233,949	13,039,000	2,006,000	2,453,504
6	Jul 22, 2022 22:54	4,703	35,117,172	13,044,000	2,006,000	2,281,472
7	Jul 22, 2022 22:54	4,703	37,069,489	13,042,000	2,006,000	2,281,472
8	Jul 22, 2022 22:54	4,704	39,550,243	13,047,000	2,007,000	2,449,408
9	Jul 22, 2022 22:54	4,704	40,196,478	14,050,000	1,003,000	2,281,472
10	Jul 22, 2022 22:54	4,705	31,324,832	13,050,000	2,007,000	2,281,472
11	Jul 22, 2022 22:54	4,707	39,977,649	13,055,000	2,008,000	2,281,472
12	Jul 22, 2022 22:54	4,708	42,263,321	14,060,000	1,004,000	2,281,472
13	Jul 22, 2022 22:54	4,710	28,556,029	13,062,000	2,009,000	2,437,120
14	Jul 22, 2022 22:54	4,712	35,707,331	13,068,000	2,010,000	2,281,472
15	Jul 22, 2022 22:54	4,716	29,675,982	13,079,000	2,012,000	2,277,376
16	Jul 22, 2022 22:54	4,717	27,763,979	13,082,000	2,012,000	2,277,376
17	Jul 22, 2022 22:54	4,718	38,391,777	13,085,000	2,013,000	2,281,472
18	Jul 22, 2022 22:54	4,720	31,691,087	13,090,000	2,013,000	2,281,472
19	Jul 22, 2022 22:54	4,723	44,453,606	13,100,000	2,015,000	2,281,472
20	Jul 22, 2022 22:54	4,724	29,200,341	13,102,000	2,015,000	2,281,472
21	Jul 22, 2022 22:54	4,724	31,327,737	13,103,000	2,015,000	2,281,472
22	Jul 22, 2022 22:54	4,728	35,852,976	13,113,000	2,017,000	2,449,408
23	Jul 22, 2022 22:54	4,728	31,472,566	13,113,000	2,017,000	2,281,472
24	Jul 22, 2022 22:54	4,732	30,800,269	13,123,000	2,018,000	2,453,504
25	Jul 22, 2022 22:54	4,734	42,618,231	13,129,000	2,019,000	2,281,472
26	Jul 22, 2022 22:54	4,739	34,241,021	13,143,000	2,022,000	2,281,472
27	Jul 22, 2022 22:54	4,740	29,450,262	13,145,000	2,022,000	2,453,504
28	Jul 22, 2022 22:54	4,882	57,592,765	15,623,977	0	2,203,648
29	Jul 22, 2022 22:54	4,888	73,606,352	15,641,624	0	2,203,648
30	Jul 22, 2022 22:54	4,897	60,209,454	15,670,211	0	2,199,552
31	Jul 22, 2022 22:54	4,910	72,013,797	15,710,929	0	2,211,840
32	Jul 22, 2022 22:54	4,915	74,563,145	15,726,916	0	2,203,648
33	Jul 22, 2022 22:54	4,916	71,286,931	15,732,568	0	2,203,648
34	Jul 22, 2022 22:54	4,918	83,810,103	15,737,289	0	2,207,744
35	Jul 22, 2022 22:54	4,920	56,631,893	15,745,234	0	2,207,744
36	Jul 22, 2022 22:54	4,932	71,053,360	15,783,892	0	2,195,456

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