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 listJun 3, 2021 16:01

Yuriy Lyfenko

Score: 5,046

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	Jun 3, 2021 16:05	4,995	545,216,013	14,986,000	999,000	2,273,280
2	Jun 3, 2021 16:05	4,995	540,207,344	13,986,000	1,998,000	2,273,280
3	Jun 3, 2021 16:05	4,996	542,298,641	13,989,000	1,998,000	2,281,472
4	Jun 3, 2021 16:02	4,997	541,338,141	13,992,000	1,998,000	2,273,280
5	Jun 3, 2021 16:02	4,998	542,120,228	13,994,000	1,999,000	2,273,280
6	Jun 3, 2021 16:02	4,999	539,857,970	13,998,000	1,999,000	2,273,280
7	Jun 3, 2021 16:02	4,999	539,136,648	14,997,000	999,000	2,273,280
8	Jun 3, 2021 16:05	4,999	539,054,283	14,998,000	999,000	2,273,280
9	Jun 3, 2021 16:05	5,001	540,630,300	14,004,000	2,000,000	2,281,472
10	Jun 3, 2021 16:02	5,003	540,178,655	15,010,000	1,000,000	2,408,448
11	Jun 3, 2021 16:02	5,005	537,199,710	15,015,000	1,001,000	2,412,544
12	Jun 3, 2021 16:02	5,023	540,252,108	15,068,000	1,004,000	2,273,280
13	Jun 3, 2021 16:01	5,032	538,994,036	14,090,000	2,012,000	2,281,472
14	Jun 3, 2021 16:05	5,033	538,978,722	15,100,000	1,006,000	2,273,280
15	Jun 3, 2021 16:02	5,034	542,856,941	14,096,000	2,013,000	2,281,472
16	Jun 3, 2021 16:05	5,044	538,184,474	14,125,000	2,017,000	2,281,472
17	Jun 3, 2021 16:05	5,044	542,090,578	15,134,000	1,008,000	2,273,280
18	Jun 3, 2021 16:01	5,046	538,529,901	15,137,000	1,009,000	2,281,472
19	Jun 3, 2021 16:01	5,046	547,763,780	15,138,000	1,009,000	2,273,280
20	Jun 3, 2021 16:05	5,048	539,270,468	15,146,000	1,009,000	2,404,352
21	Jun 3, 2021 16:01	5,062	538,777,098	15,186,000	1,012,000	2,281,472
22	Jun 3, 2021 16:02	5,063	539,275,070	16,201,000	0	2,273,280
23	Jun 3, 2021 16:01	5,066	539,642,261	14,185,000	2,026,000	2,273,280
24	Jun 3, 2021 16:01	5,074	542,034,021	14,209,000	2,029,000	2,273,280
25	Jun 3, 2021 16:01	5,094	538,655,130	15,284,000	1,018,000	2,273,280
26	Jun 3, 2021 16:01	5,097	539,416,601	16,311,000	0	2,273,280
27	Jun 3, 2021 16:01	5,100	540,491,377	16,319,000	0	2,281,472
28	Jun 3, 2021 16:05	5,140	574,375,577	16,447,367	0	2,285,568
29	Jun 3, 2021 16:02	5,140	573,118,128	16,448,104	0	2,293,760
30	Jun 3, 2021 16:02	5,145	589,829,982	16,462,607	0	2,256,896
31	Jun 3, 2021 16:05	5,151	578,403,325	16,484,520	0	2,293,760
32	Jun 3, 2021 16:05	5,170	579,529,808	16,543,031	0	2,256,896
33	Jun 3, 2021 16:02	5,181	579,261,642	16,578,117	0	2,289,664
34	Jun 3, 2021 16:01	5,182	566,971,059	16,582,179	0	2,256,896
35	Jun 3, 2021 16:01	5,194	577,756,950	16,620,525	0	2,293,760
36	Jun 3, 2021 16:01	5,230	578,049,051	16,735,229	0	2,289,664

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