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 23, 2024 13:16

matsuoka-601

Score: 4,487

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	CPU System	Memory
1	Jul 23, 2024 13:16	4,451	29,321,945	12,209,000	2,034,000	2,408,448
2	Jul 23, 2024 13:16	4,456	39,825,736	12,223,000	2,037,000	2,285,568
3	Jul 23, 2024 13:16	4,459	29,836,405	13,250,000	1,019,000	2,408,448
4	Jul 23, 2024 13:16	4,462	30,301,399	13,259,000	1,019,000	2,285,568
5	Jul 23, 2024 13:25	4,469	31,732,538	14,301,000	0	2,285,568
6	Jul 23, 2024 13:16	4,470	33,823,472	13,284,000	1,021,000	2,285,568
7	Jul 23, 2024 13:25	4,472	33,618,061	14,311,000	0	2,285,568
8	Jul 23, 2024 13:16	4,476	34,336,382	14,323,000	0	2,400,256
9	Jul 23, 2024 13:25	4,478	37,294,009	14,328,000	0	2,285,568
10	Jul 23, 2024 13:25	4,478	30,401,584	13,308,000	1,023,000	2,285,568
11	Jul 23, 2024 13:25	4,481	36,371,639	13,316,000	1,024,000	2,408,448
12	Jul 23, 2024 13:16	4,482	34,560,368	14,342,000	0	2,285,568
13	Jul 23, 2024 13:16	4,482	29,843,063	13,319,000	1,024,000	2,396,160
14	Jul 23, 2024 13:16	4,483	41,842,051	13,323,000	1,024,000	2,408,448
15	Jul 23, 2024 13:25	4,483	30,997,656	13,323,000	1,024,000	2,396,160
16	Jul 23, 2024 13:16	4,483	35,175,139	13,322,000	1,024,000	2,285,568
17	Jul 23, 2024 13:25	4,484	30,939,275	14,348,000	0	2,404,352
18	Jul 23, 2024 13:16	4,486	34,536,896	13,331,000	1,025,000	2,285,568
19	Jul 23, 2024 13:16	4,487	36,093,274	13,333,000	1,025,000	2,519,040
20	Jul 23, 2024 13:16	4,488	41,162,084	13,337,000	1,025,000	2,400,256
21	Jul 23, 2024 13:16	4,490	30,398,171	13,342,000	1,026,000	2,285,568
22	Jul 23, 2024 13:16	4,493	31,051,343	14,376,000	0	2,285,568
23	Jul 23, 2024 13:16	4,494	34,664,000	13,353,000	1,027,000	2,404,352
24	Jul 23, 2024 13:16	4,495	33,585,291	13,358,000	1,027,000	2,285,568
25	Jul 23, 2024 13:25	4,497	31,530,684	14,391,000	0	2,285,568
26	Jul 23, 2024 13:25	4,503	30,410,408	14,410,000	0	2,404,352
27	Jul 23, 2024 13:16	4,539	33,305,710	13,557,000	968,000	2,285,568
28	Jul 23, 2024 13:25	4,695	110,218,869	15,022,589	0	2,260,992
29	Jul 23, 2024 13:16	4,713	79,814,130	15,081,099	0	2,289,664
30	Jul 23, 2024 13:16	4,716	86,271,201	15,092,483	0	2,297,856
31	Jul 23, 2024 13:16	4,735	92,228,136	15,152,272	0	2,297,856
32	Jul 23, 2024 13:16	4,736	92,668,104	15,156,363	0	2,301,952
33	Jul 23, 2024 13:25	4,738	97,681,432	15,160,560	0	2,301,952
34	Jul 23, 2024 13:16	4,741	64,469,520	15,171,974	0	2,297,856
35	Jul 23, 2024 13:25	4,752	66,198,260	15,204,928	0	2,301,952
36	Jul 23, 2024 13:16	4,753	91,304,908	15,209,963	0	2,179,072

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