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 25, 2021 23:55

Mikhail Dektyarev

Score: 4,655

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 25, 2021 23:55	4,606	38,874,541	13,687,000	1,052,000	2,281,472
2	May 25, 2021 23:55	4,645	34,655,347	14,863,000	0	2,281,472
3	May 25, 2021 23:55	4,646	39,683,158	12,886,000	1,982,000	2,281,472
4	May 25, 2021 23:55	4,647	44,476,464	13,880,000	991,000	2,396,160
5	May 25, 2021 23:55	4,647	32,813,932	12,889,000	1,982,000	2,281,472
6	May 25, 2021 23:55	4,648	33,259,615	13,881,000	991,000	2,281,472
7	May 25, 2021 23:55	4,648	38,483,352	12,890,000	1,983,000	2,400,256
8	May 25, 2021 23:55	4,649	37,746,235	12,894,000	1,983,000	2,281,472
9	May 25, 2021 23:55	4,649	35,596,696	13,885,000	991,000	2,400,256
10	May 25, 2021 23:55	4,650	36,914,189	13,888,000	992,000	2,281,472
11	May 25, 2021 23:55	4,651	44,936,562	13,892,000	992,000	2,281,472
12	May 25, 2021 23:55	4,652	29,617,324	13,895,000	992,000	2,396,160
13	May 25, 2021 23:55	4,652	28,407,696	13,893,000	992,000	2,396,160
14	May 25, 2021 23:55	4,653	35,393,553	12,903,000	1,985,000	2,404,352
15	May 25, 2021 23:55	4,653	40,061,995	12,904,000	1,985,000	2,404,352
16	May 25, 2021 23:55	4,653	32,746,215	12,903,000	1,985,000	2,400,256
17	May 25, 2021 23:55	4,654	36,855,569	12,907,000	1,985,000	2,281,472
18	May 25, 2021 23:55	4,655	36,223,022	14,895,000	0	2,281,472
19	May 25, 2021 23:55	4,655	34,052,509	13,903,000	993,000	2,281,472
20	May 25, 2021 23:55	4,658	41,337,977	13,912,000	993,000	2,281,472
21	May 25, 2021 23:55	4,659	32,047,717	13,845,000	1,065,000	2,273,280
22	May 25, 2021 23:55	4,660	44,837,529	14,913,000	0	2,392,064
23	May 25, 2021 23:55	4,661	36,611,748	14,914,000	0	2,277,376
24	May 25, 2021 23:55	4,676	32,552,418	13,967,000	997,000	2,396,160
25	May 25, 2021 23:55	4,679	34,696,580	12,978,000	1,996,000	2,281,472
26	May 25, 2021 23:55	4,686	38,984,134	13,997,000	999,000	2,387,968
27	May 25, 2021 23:55	4,693	32,266,613	13,015,000	2,002,000	2,396,160
28	May 25, 2021 23:55	4,833	63,375,774	15,464,467	0	2,285,568
29	May 25, 2021 23:55	4,846	39,992,120	15,506,559	0	2,260,992
30	May 25, 2021 23:55	4,856	44,096,970	15,540,555	0	2,285,568
31	May 25, 2021 23:55	4,877	60,331,882	15,606,590	0	2,297,856
32	May 25, 2021 23:55	4,881	76,272,604	15,617,616	0	2,281,472
33	May 25, 2021 23:55	4,883	67,256,564	15,626,050	0	2,289,664
34	May 25, 2021 23:55	4,884	79,925,308	15,627,947	0	2,301,952
35	May 25, 2021 23:55	4,913	48,110,323	15,721,364	0	2,289,664
36	May 25, 2021 23:55	5,165	95,367,620	16,528,317	0	2,293,760

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