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 20, 2021 05:11

Dmitry Dolgopolov

Score: 6,494

Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	Memory
1	May 20, 2021 05:09	6,324	90,811,610	20,235,621	2,293,760
2	May 16, 2021 09:01	6,413	79,102,533	20,523,134	2,174,976
3	May 20, 2021 05:09	6,431	101,819,382	20,578,649	2,170,880
4	May 20, 2021 05:09	6,452	62,386,845	20,647,616	2,170,880
5	May 16, 2021 09:17	6,460	85,328,548	20,672,250	2,174,976
6	May 16, 2021 15:20	6,462	80,108,494	20,679,559	2,170,880
7	May 20, 2021 05:10	6,463	95,404,981	20,681,335	2,301,952
8	May 16, 2021 09:01	6,463	81,727,260	20,681,592	2,179,072
9	May 16, 2021 09:18	6,464	86,011,772	20,683,205	2,297,856
10	May 20, 2021 05:09	6,472	83,874,699	20,709,225	2,297,856
11	May 16, 2021 09:18	6,478	89,175,653	20,730,204	2,301,952
12	May 20, 2021 05:10	6,478	82,660,643	20,728,261	2,179,072
13	May 16, 2021 09:18	6,480	69,520,713	20,735,653	2,170,880
14	May 16, 2021 15:20	6,482	83,820,009	20,743,646	2,301,952
15	May 16, 2021 09:18	6,485	90,339,412	20,753,519	2,170,880
16	May 16, 2021 09:18	6,486	93,980,411	20,754,658	2,179,072
17	May 20, 2021 05:10	6,486	79,699,723	20,756,140	2,301,952
18	May 16, 2021 15:25	6,489	103,623,282	20,763,455	2,297,856
19	May 20, 2021 05:10	6,493	89,200,787	20,778,616	2,289,664
20	May 16, 2021 09:17	6,494	108,543,554	20,782,162	2,179,072
21	May 20, 2021 05:10	6,495	61,476,690	20,785,018	2,297,856
22	May 16, 2021 09:18	6,495	81,953,554	20,784,797	2,297,856
23	May 20, 2021 05:09	6,501	77,527,616	20,804,770	2,174,976
24	May 16, 2021 09:18	6,504	84,007,179	20,813,227	2,179,072
25	May 20, 2021 05:11	6,505	59,143,499	20,817,419	2,297,856
26	May 20, 2021 05:11	6,515	99,008,125	20,846,532	2,179,072
27	May 16, 2021 15:25	6,518	62,381,721	20,857,418	2,174,976
28	May 20, 2021 05:10	6,524	96,167,984	20,875,633	2,297,856
29	May 16, 2021 09:18	6,526	97,658,641	20,883,318	2,301,952
30	May 16, 2021 09:01	6,532	88,417,674	20,903,028	2,293,760
31	May 16, 2021 15:20	6,534	62,613,130	20,909,903	2,301,952
32	May 20, 2021 05:11	6,542	99,026,464	20,934,158	2,301,952
33	May 20, 2021 05:09	6,542	82,187,038	20,934,239	2,297,856
34	May 20, 2021 05:11	6,546	94,119,224	20,947,746	2,174,976
35	May 16, 2021 15:25	6,557	66,250,030	20,983,250	2,174,976
36	May 16, 2021 09:18	6,568	69,115,341	21,017,931	2,297,856
37	May 20, 2021 05:11	6,581	76,437,620	21,058,384	2,170,880
38	May 20, 2021 05:11	6,604	86,504,739	21,133,282	2,174,976
39	May 16, 2021 09:17	6,694	61,887,007	21,419,560	2,179,072

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