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 16, 2021 09:27

alex3d

Score: 5,481

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	May 16, 2021 09:27	5,434	3,551,892,044	17,388,000	0	2,523,136
2	May 16, 2021 09:27	5,441	8,151,450,433	17,410,000	0	2,523,136
3	May 16, 2021 09:28	5,451	7,053,389,589	15,263,000	2,180,000	2,523,136
4	May 16, 2021 09:28	5,453	38,045,744	16,423,000	1,026,000	2,269,184
5	May 16, 2021 09:28	5,453	8,702,767,664	17,451,000	0	2,527,232
6	May 16, 2021 09:28	5,456	1,179,406,775	16,432,000	1,027,000	2,523,136
7	May 16, 2021 09:28	5,456	1,735,974,613	15,406,000	2,054,000	2,523,136
8	May 16, 2021 09:28	5,461	1,627,767,470	17,475,000	0	2,523,136
9	May 16, 2021 09:28	5,463	7,417,977,601	16,455,000	1,028,000	2,523,136
10	May 16, 2021 09:28	5,464	3,915,820,267	15,300,000	2,185,000	2,523,136
11	May 16, 2021 09:28	5,464	9,314,328,730	17,486,000	0	2,523,136
12	May 16, 2021 09:28	5,465	5,025,805,656	16,461,000	1,028,000	2,445,312
13	May 16, 2021 09:28	5,465	3,506,712,411	16,459,000	1,028,000	2,519,040
14	May 16, 2021 09:27	5,467	2,487,486,124	17,495,000	0	2,523,136
15	May 16, 2021 09:27	5,468	7,366,420,237	16,406,000	1,093,000	2,519,040
16	May 16, 2021 09:28	5,468	694,052,174	17,496,000	0	2,523,136
17	May 16, 2021 09:28	5,473	10,000,445,289	16,418,000	1,094,000	2,519,040
18	May 16, 2021 09:27	5,478	9,119,437,408	16,499,000	1,031,000	2,519,040
19	May 16, 2021 09:28	5,481	6,148,738,685	15,475,000	2,063,000	2,523,136
20	May 16, 2021 09:27	5,482	6,315,690,141	16,510,000	1,031,000	2,514,944
21	May 16, 2021 09:28	5,482	4,914,781,785	15,349,000	2,192,000	2,523,136
22	May 16, 2021 09:28	5,485	5,934,943,026	17,552,000	0	2,514,944
23	May 16, 2021 09:27	5,485	8,295,509,759	17,551,000	0	2,527,232
24	May 16, 2021 09:28	5,489	7,790,581,483	17,564,000	0	2,519,040
25	May 16, 2021 09:28	5,492	8,490,943,933	15,507,000	2,067,000	2,523,136
26	May 16, 2021 09:27	5,496	4,587,642,980	16,552,000	1,034,000	2,445,312
27	May 16, 2021 09:27	5,498	9,631,109,863	16,559,000	1,034,000	2,523,136
28	May 16, 2021 09:28	5,718	9,173,700,255	18,298,884	0	2,281,472
29	May 16, 2021 09:27	5,729	4,715,621,728	18,332,375	0	2,277,376
30	May 16, 2021 09:27	5,730	127,716,635	18,337,122	0	2,277,376
31	May 16, 2021 09:28	5,738	6,846,476,512	18,360,924	0	2,277,376
32	May 16, 2021 09:28	5,739	4,812,143,204	18,363,806	0	2,277,376
33	May 16, 2021 09:28	5,741	8,501,839,578	18,370,610	0	2,277,376
34	May 16, 2021 09:28	5,741	4,316,276,942	18,370,810	0	2,281,472
35	May 16, 2021 09:27	5,755	8,387,949,312	18,415,200	0	2,281,472
36	May 16, 2021 09:28	5,758	3,664,151,441	18,424,434	0	2,277,376

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