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 13, 2021 22:55

Yuriy Lyfenko

Score: 5,479

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 13, 2021 22:55	5,432	45,238,350	17,381,000	0	2,260,992
2	May 13, 2021 22:55	5,432	38,191,910	17,382,000	0	2,387,968
3	May 13, 2021 22:55	5,436	41,749,719	16,371,000	1,023,000	2,400,256
4	May 13, 2021 22:55	5,438	39,270,139	15,353,000	2,047,000	2,523,136
5	May 13, 2021 23:01	5,443	42,522,900	16,393,000	1,024,000	2,523,136
6	May 13, 2021 23:01	5,445	50,279,277	16,399,000	1,024,000	2,523,136
7	May 13, 2021 22:55	5,449	40,050,972	16,412,000	1,025,000	2,383,872
8	May 13, 2021 22:55	5,452	40,979,670	16,420,000	1,026,000	2,265,088
9	May 13, 2021 23:01	5,453	38,089,787	16,423,000	1,026,000	2,396,160
10	May 13, 2021 23:01	5,460	40,834,167	14,388,000	3,083,000	2,260,992
11	May 13, 2021 22:55	5,465	43,075,170	15,430,000	2,057,000	2,392,064
12	May 13, 2021 22:55	5,465	37,417,865	17,488,000	0	2,523,136
13	May 13, 2021 22:55	5,466	38,081,769	17,492,000	0	2,523,136
14	May 13, 2021 22:55	5,471	39,482,894	16,477,000	1,029,000	2,392,064
15	May 13, 2021 22:55	5,472	36,742,890	16,481,000	1,030,000	2,387,968
16	May 13, 2021 23:01	5,473	37,760,669	16,485,000	1,030,000	2,260,992
17	May 13, 2021 23:01	5,473	36,279,191	16,482,000	1,030,000	2,387,968
18	May 13, 2021 23:01	5,475	34,846,848	17,520,000	0	2,523,136
19	May 13, 2021 23:01	5,479	39,936,985	17,533,000	0	2,400,256
20	May 13, 2021 22:55	5,488	44,104,935	16,529,000	1,033,000	2,265,088
21	May 13, 2021 22:55	5,520	47,416,379	16,625,000	1,039,000	2,260,992
22	May 13, 2021 22:55	5,583	53,961,710	17,864,000	0	2,519,040
23	May 13, 2021 22:55	5,584	43,456,636	15,883,000	1,985,000	2,523,136
24	May 13, 2021 23:01	5,586	44,362,909	15,889,000	1,986,000	2,523,136
25	May 13, 2021 22:55	5,586	38,793,135	14,897,000	2,979,000	2,260,992
26	May 13, 2021 22:55	5,586	45,144,309	15,889,000	1,986,000	2,387,968
27	May 13, 2021 23:01	5,638	75,915,475	18,040,110	0	2,277,376
28	May 13, 2021 22:55	5,653	45,287,296	17,086,000	1,005,000	2,392,064
29	May 13, 2021 22:55	5,664	91,909,483	18,125,387	0	2,281,472
30	May 13, 2021 22:55	5,683	57,723,420	18,185,218	0	2,273,280
31	May 13, 2021 22:55	5,684	73,368,061	18,187,482	0	2,281,472
32	May 13, 2021 23:01	5,685	74,852,855	18,191,470	0	2,273,280
33	May 13, 2021 22:55	5,694	79,915,179	18,221,150	0	2,285,568
34	May 13, 2021 22:55	5,705	80,135,789	18,254,577	0	2,277,376
35	May 13, 2021 23:01	5,707	90,241,849	18,263,652	0	2,273,280
36	May 13, 2021 22:55	5,719	58,570,736	18,301,929	0	2,277,376

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