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 8, 2021 15:40

Yuriy Lyfenko

Score: 4,521

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 8, 2021 15:42	4,477	536,752,491	13,304,000	1,023,000	2,265,088
2	Jul 8, 2021 15:41	4,480	537,274,963	14,335,000	0	2,265,088
3	Jul 8, 2021 15:41	4,489	538,513,549	13,339,000	1,026,000	2,265,088
4	Jul 8, 2021 15:42	4,491	537,047,308	13,344,000	1,026,000	2,392,064
5	Jul 8, 2021 15:42	4,491	532,357,913	13,345,000	1,026,000	2,392,064
6	Jul 8, 2021 15:41	4,498	538,194,536	14,393,000	0	2,392,064
7	Jul 8, 2021 15:40	4,499	533,885,911	14,396,000	0	2,260,992
8	Jul 8, 2021 15:40	4,501	535,331,841	13,375,000	1,028,000	2,523,136
9	Jul 8, 2021 15:42	4,501	538,356,531	13,375,000	1,028,000	2,265,088
10	Jul 8, 2021 15:42	4,501	533,173,506	14,404,000	0	2,523,136
11	Jul 8, 2021 15:40	4,502	536,013,585	14,407,000	0	2,523,136
12	Jul 8, 2021 15:41	4,503	534,639,063	14,409,000	0	2,523,136
13	Jul 8, 2021 15:41	4,503	539,737,120	13,379,000	1,029,000	2,523,136
14	Jul 8, 2021 15:40	4,511	541,109,117	14,435,000	0	2,523,136
15	Jul 8, 2021 15:41	4,516	534,950,561	13,420,000	1,032,000	2,265,088
16	Jul 8, 2021 15:40	4,516	541,987,825	13,419,000	1,032,000	2,265,088
17	Jul 8, 2021 15:40	4,519	543,098,937	13,428,000	1,032,000	2,265,088
18	Jul 8, 2021 15:41	4,521	540,526,428	14,467,000	0	2,523,136
19	Jul 8, 2021 15:42	4,521	539,629,708	13,435,000	1,033,000	2,265,088
20	Jul 8, 2021 15:42	4,524	535,292,641	13,443,000	1,034,000	2,523,136
21	Jul 8, 2021 15:40	4,531	539,545,553	13,463,000	1,035,000	2,265,088
22	Jul 8, 2021 15:41	4,532	536,406,921	14,502,000	0	2,260,992
23	Jul 8, 2021 15:40	4,538	533,539,092	13,486,000	1,037,000	2,265,088
24	Jul 8, 2021 15:40	4,539	540,531,856	13,489,000	1,037,000	2,523,136
25	Jul 8, 2021 15:42	4,543	540,997,629	14,538,000	0	2,260,992
26	Jul 8, 2021 15:41	4,543	544,781,317	13,499,000	1,038,000	2,523,136
27	Jul 8, 2021 15:42	4,558	544,783,180	13,545,000	1,041,000	2,265,088
28	Jul 8, 2021 15:40	4,641	572,715,190	14,850,617	0	2,285,568
29	Jul 8, 2021 15:41	4,646	572,097,434	14,868,426	0	2,289,664
30	Jul 8, 2021 15:41	4,646	590,710,763	14,867,666	0	2,244,608
31	Jul 8, 2021 15:42	4,649	568,214,467	14,877,843	0	2,285,568
32	Jul 8, 2021 15:40	4,652	563,169,953	14,884,905	0	2,240,512
33	Jul 8, 2021 15:42	4,662	581,603,906	14,918,458	0	2,240,512
34	Jul 8, 2021 15:40	4,674	567,212,405	14,955,312	0	2,277,376
35	Jul 8, 2021 15:42	4,675	570,999,314	14,958,574	0	2,285,568
36	Jul 8, 2021 15:41	4,676	566,751,474	14,964,266	0	2,240,512

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