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 17, 2023 22:38

Martin Stensgård

Score: 5,324

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 17, 2023 22:38	5,285	41,241,543	15,917,000	994,000	2,486,272
2	May 17, 2023 22:38	5,291	37,828,818	15,936,000	996,000	2,498,560
3	May 17, 2023 23:02	5,292	43,289,113	15,937,000	996,000	2,277,376
4	May 17, 2023 23:02	5,299	40,505,748	15,959,000	997,000	2,494,464
5	May 17, 2023 23:03	5,301	37,887,724	15,967,000	997,000	2,277,376
6	May 17, 2023 22:38	5,309	37,085,306	15,991,000	999,000	2,498,560
7	May 17, 2023 23:03	5,309	34,420,943	15,991,000	999,000	2,498,560
8	May 17, 2023 23:03	5,310	42,963,384	15,994,000	999,000	2,494,464
9	May 17, 2023 23:03	5,316	44,274,943	16,010,000	1,000,000	2,498,560
10	May 17, 2023 23:03	5,316	39,128,788	15,009,000	2,001,000	2,498,560
11	May 17, 2023 23:02	5,317	39,603,902	17,013,000	0	2,277,376
12	May 17, 2023 23:03	5,317	34,090,329	16,015,000	1,000,000	2,490,368
13	May 17, 2023 22:38	5,317	39,769,382	15,013,000	2,001,000	2,498,560
14	May 17, 2023 23:03	5,319	41,791,524	16,020,000	1,001,000	2,277,376
15	May 17, 2023 23:02	5,319	43,652,603	16,021,000	1,001,000	2,277,376
16	May 17, 2023 23:02	5,320	36,707,507	16,023,000	1,001,000	2,277,376
17	May 17, 2023 22:38	5,322	33,993,759	15,026,000	2,003,000	2,269,184
18	May 17, 2023 23:02	5,322	31,533,605	16,028,000	1,001,000	2,506,752
19	May 17, 2023 22:38	5,324	33,940,100	16,036,000	1,002,000	2,498,560
20	May 17, 2023 23:02	5,324	35,976,138	16,034,000	1,002,000	2,277,376
21	May 17, 2023 23:02	5,325	36,825,751	16,037,000	1,002,000	2,498,560
22	May 17, 2023 22:38	5,329	34,127,474	16,049,000	1,003,000	2,277,376
23	May 17, 2023 23:03	5,331	41,148,220	16,057,000	1,003,000	2,277,376
24	May 17, 2023 22:38	5,331	38,427,881	16,057,000	1,003,000	2,277,376
25	May 17, 2023 23:03	5,333	40,359,152	15,057,000	2,007,000	2,277,376
26	May 17, 2023 22:38	5,338	39,605,894	16,079,000	1,004,000	2,498,560
27	May 17, 2023 23:02	5,342	41,282,063	15,083,000	2,011,000	2,277,376
28	May 17, 2023 23:03	5,504	81,468,296	17,613,576	0	2,240,512
29	May 17, 2023 22:38	5,506	79,756,817	17,618,759	0	2,240,512
30	May 17, 2023 23:02	5,509	71,644,888	17,628,579	0	2,240,512
31	May 17, 2023 22:38	5,512	95,156,078	17,638,279	0	2,240,512
32	May 17, 2023 23:02	5,526	86,958,929	17,682,262	0	2,248,704
33	May 17, 2023 23:03	5,527	85,160,431	17,687,132	0	2,232,320
34	May 17, 2023 22:38	5,530	102,240,204	17,696,244	0	2,252,800
35	May 17, 2023 23:03	5,535	78,881,750	17,712,808	0	2,244,608
36	May 17, 2023 23:02	5,541	74,162,422	17,732,647	0	2,236,416

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