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 11, 2021 21:00

Yuriy Lyfenko

Score: 5,591

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 11, 2021 21:00	5,542	43,364,522	15,649,000	2,086,000	2,396,160
2	May 11, 2021 21:00	5,577	43,514,455	16,855,000	991,000	2,392,064
3	May 11, 2021 21:00	5,581	43,704,400	16,868,000	992,000	2,523,136
4	May 11, 2021 20:59	5,583	45,889,533	14,888,000	2,977,000	2,392,064
5	May 11, 2021 21:00	5,583	41,228,863	16,873,000	992,000	2,260,992
6	May 11, 2021 20:59	5,584	44,837,468	14,892,000	2,978,000	2,260,992
7	May 11, 2021 21:00	5,584	47,038,451	14,892,000	2,978,000	2,396,160
8	May 11, 2021 20:59	5,585	36,303,700	14,894,000	2,978,000	2,510,848
9	May 11, 2021 21:00	5,585	44,893,849	16,879,000	992,000	2,396,160
10	May 11, 2021 21:00	5,585	43,528,121	15,886,000	1,985,000	2,392,064
11	May 11, 2021 21:00	5,586	42,324,964	15,888,000	1,986,000	2,527,232
12	May 11, 2021 21:00	5,587	45,657,787	16,884,000	993,000	2,523,136
13	May 11, 2021 20:59	5,587	38,341,420	16,884,000	993,000	2,260,992
14	May 11, 2021 20:59	5,587	46,754,209	15,891,000	1,986,000	2,387,968
15	May 11, 2021 21:00	5,587	46,850,802	16,884,000	993,000	2,260,992
16	May 11, 2021 20:59	5,589	48,102,117	16,892,000	993,000	2,519,040
17	May 11, 2021 21:00	5,589	46,493,160	16,893,000	993,000	2,400,256
18	May 11, 2021 21:00	5,591	47,811,593	15,903,000	1,987,000	2,523,136
19	May 11, 2021 21:00	5,591	49,192,397	15,904,000	1,988,000	2,260,992
20	May 11, 2021 21:00	5,591	35,167,823	16,840,000	1,052,000	2,523,136
21	May 11, 2021 21:00	5,595	43,507,564	16,910,000	994,000	2,383,872
22	May 11, 2021 21:00	5,598	43,934,419	14,929,000	2,985,000	2,510,848
23	May 11, 2021 20:59	5,599	49,953,802	16,921,000	995,000	2,265,088
24	May 11, 2021 21:00	5,601	45,889,707	15,931,000	1,991,000	2,392,064
25	May 11, 2021 20:59	5,603	44,925,788	15,938,000	1,992,000	2,387,968
26	May 11, 2021 20:59	5,609	49,428,207	15,955,000	1,994,000	2,387,968
27	May 11, 2021 21:00	5,610	42,267,158	15,958,000	1,994,000	2,379,776
28	May 11, 2021 21:00	5,745	63,061,762	18,383,978	0	2,285,568
29	May 11, 2021 21:00	5,751	74,174,410	18,402,205	0	2,281,472
30	May 11, 2021 20:59	5,756	103,255,178	18,420,678	0	2,277,376
31	May 11, 2021 21:00	5,760	78,814,097	18,431,802	0	2,281,472
32	May 11, 2021 21:00	5,786	75,843,048	18,515,231	0	2,281,472
33	May 11, 2021 21:00	5,790	71,908,591	18,529,209	0	2,273,280
34	May 11, 2021 20:59	5,794	68,992,889	18,540,106	0	2,281,472
35	May 11, 2021 21:00	5,798	78,257,638	18,552,081	0	2,277,376
36	May 11, 2021 20:59	5,803	64,370,230	18,569,052	0	2,281,472

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