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 listAug 3, 2024 04:38

jeffplaisance

Score: 4,568

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	Aug 3, 2024 04:37	4,466	44,732,114	12,251,000	2,041,000	2,281,472
2	Aug 3, 2024 04:37	4,470	32,662,390	13,282,000	1,021,000	2,400,256
3	Aug 3, 2024 04:38	4,473	29,741,526	13,291,000	1,022,000	2,396,160
4	Aug 3, 2024 04:37	4,473	39,074,807	13,291,000	1,022,000	2,281,472
5	Aug 3, 2024 04:37	4,476	35,470,467	14,324,000	0	2,277,376
6	Aug 3, 2024 04:38	4,483	31,537,705	13,320,000	1,024,000	2,404,352
7	Aug 3, 2024 04:37	4,484	30,627,250	14,350,000	0	2,281,472
8	Aug 3, 2024 04:37	4,486	31,487,139	14,354,000	0	2,400,256
9	Aug 3, 2024 04:38	4,487	34,699,921	13,333,000	1,025,000	2,281,472
10	Aug 3, 2024 04:37	4,488	29,856,236	13,337,000	1,025,000	2,281,472
11	Aug 3, 2024 04:38	4,491	29,377,104	14,370,000	0	2,408,448
12	Aug 3, 2024 04:37	4,495	29,700,897	13,356,000	1,027,000	2,281,472
13	Aug 3, 2024 04:37	4,496	30,263,956	14,387,000	0	2,277,376
14	Aug 3, 2024 04:38	4,505	29,822,844	14,416,000	0	2,523,136
15	Aug 3, 2024 04:38	4,510	29,589,696	14,432,000	0	2,408,448
16	Aug 3, 2024 04:38	4,516	30,491,482	14,450,000	0	2,281,472
17	Aug 3, 2024 04:38	4,522	35,386,324	14,471,000	0	2,404,352
18	Aug 3, 2024 04:38	4,537	31,966,748	13,481,000	1,037,000	2,404,352
19	Aug 3, 2024 04:38	4,568	45,971,623	13,573,000	1,044,000	2,396,160
20	Aug 3, 2024 04:38	4,568	34,991,438	13,574,000	1,044,000	2,392,064
21	Aug 3, 2024 04:38	4,570	29,863,036	13,580,000	1,044,000	2,400,256
22	Aug 3, 2024 04:38	4,572	34,108,065	14,629,000	0	2,281,472
23	Aug 3, 2024 04:38	4,573	34,920,820	14,632,000	0	2,281,472
24	Aug 3, 2024 04:38	4,580	34,076,853	13,609,000	1,046,000	2,281,472
25	Aug 3, 2024 04:38	4,584	35,850,744	13,623,000	1,047,000	2,408,448
26	Aug 3, 2024 04:38	4,585	36,483,223	13,625,000	1,048,000	2,281,472
27	Aug 3, 2024 04:38	4,591	44,719,567	13,641,000	1,049,000	2,281,472
28	Aug 3, 2024 04:37	4,738	62,735,302	15,160,510	0	2,297,856
29	Aug 3, 2024 04:38	4,739	81,519,003	15,166,119	0	2,293,760
30	Aug 3, 2024 04:37	4,741	89,511,749	15,169,876	0	2,297,856
31	Aug 3, 2024 04:38	4,750	88,181,312	15,198,897	0	2,289,664
32	Aug 3, 2024 04:38	4,752	88,097,339	15,207,821	0	2,297,856
33	Aug 3, 2024 04:37	4,762	113,905,113	15,238,807	0	2,301,952
34	Aug 3, 2024 04:38	4,824	84,325,812	15,437,860	0	2,174,976
35	Aug 3, 2024 04:38	4,832	65,971,567	15,461,668	0	2,293,760
36	Aug 3, 2024 04:38	4,863	79,143,083	15,561,627	0	2,289,664

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