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 29, 2021 15:55

Dmitry Dolgopolov

Score: 4,971

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 29, 2021 15:54	4,959	42,679,371	13,887,000	1,983,000	2,281,472
2	May 29, 2021 15:54	4,959	35,013,875	13,886,000	1,983,000	2,445,312
3	May 29, 2021 15:54	4,960	30,075,871	13,888,000	1,984,000	2,277,376
4	May 29, 2021 15:55	4,961	39,893,269	13,891,000	1,984,000	2,445,312
5	May 29, 2021 15:55	4,961	35,247,974	14,883,000	992,000	2,449,408
6	May 29, 2021 15:55	4,961	36,758,612	13,892,000	1,984,000	2,281,472
7	May 29, 2021 15:55	4,962	37,258,291	13,894,000	1,984,000	2,445,312
8	May 29, 2021 15:54	4,962	42,592,785	13,894,000	1,984,000	2,281,472
9	May 29, 2021 15:55	4,963	44,005,965	13,898,000	1,985,000	2,281,472
10	May 29, 2021 15:55	4,964	45,209,870	14,892,000	992,000	2,281,472
11	May 29, 2021 15:54	4,966	44,652,446	13,904,000	1,986,000	2,445,312
12	May 29, 2021 15:55	4,966	44,748,357	13,906,000	1,986,000	2,281,472
13	May 29, 2021 15:54	4,968	36,602,416	13,909,000	1,987,000	2,449,408
14	May 29, 2021 15:55	4,968	35,651,594	13,909,000	1,987,000	2,437,120
15	May 29, 2021 15:55	4,969	42,812,589	14,907,000	993,000	2,281,472
16	May 29, 2021 15:55	4,969	42,747,892	14,909,000	993,000	2,281,472
17	May 29, 2021 15:55	4,970	38,571,525	14,844,000	1,060,000	2,281,472
18	May 29, 2021 15:55	4,970	32,031,812	13,916,000	1,988,000	2,281,472
19	May 29, 2021 15:55	4,971	32,834,770	14,846,000	1,060,000	2,281,472
20	May 29, 2021 15:54	4,975	42,670,321	13,930,000	1,990,000	2,453,504
21	May 29, 2021 15:54	4,978	33,917,616	13,940,000	1,991,000	2,281,472
22	May 29, 2021 15:55	4,979	31,908,113	13,941,000	1,991,000	2,281,472
23	May 29, 2021 15:55	4,980	34,895,956	13,945,000	1,992,000	2,535,424
24	May 29, 2021 15:55	4,983	32,014,632	13,951,000	1,993,000	2,281,472
25	May 29, 2021 15:55	4,984	30,901,169	13,957,000	1,993,000	2,535,424
26	May 29, 2021 15:55	4,996	35,645,148	13,988,000	1,998,000	2,445,312
27	May 29, 2021 15:54	5,010	31,236,750	14,029,000	2,004,000	2,445,312
28	May 29, 2021 15:54	5,167	58,850,077	16,535,048	0	2,215,936
29	May 29, 2021 15:55	5,186	102,164,282	16,593,939	0	2,203,648
30	May 29, 2021 15:54	5,188	66,622,788	16,600,768	0	2,203,648
31	May 29, 2021 15:54	5,204	96,976,451	16,651,412	0	2,203,648
32	May 29, 2021 15:55	5,213	72,900,163	16,682,559	0	2,260,992
33	May 29, 2021 15:55	5,213	78,753,960	16,681,652	0	2,203,648
34	May 29, 2021 15:55	5,213	57,038,905	16,680,978	0	2,203,648
35	May 29, 2021 15:55	5,232	78,841,421	16,742,806	0	2,203,648
36	May 29, 2021 15:55	5,234	64,758,003	16,749,239	0	2,207,744

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