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 15, 2024 15:24

kytans

Score: 4,525

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	Jul 15, 2024 15:23	4,365	32,326,775	12,972,000	997,000	2,510,848
2	Jul 15, 2024 15:23	4,367	31,111,633	12,977,000	998,000	2,506,752
3	Jul 15, 2024 15:23	4,368	47,414,825	12,981,000	998,000	2,277,376
4	Jul 15, 2024 15:23	4,368	30,025,391	12,981,000	998,000	2,506,752
5	Jul 15, 2024 15:23	4,373	35,434,859	12,994,000	999,000	2,277,376
6	Jul 15, 2024 15:24	4,378	36,657,502	13,008,000	1,000,000	2,510,848
7	Jul 15, 2024 15:23	4,378	29,693,142	13,009,000	1,000,000	2,506,752
8	Jul 15, 2024 15:24	4,381	31,674,305	13,017,000	1,001,000	2,506,752
9	Jul 15, 2024 15:24	4,382	32,569,572	13,020,000	1,001,000	2,277,376
10	Jul 15, 2024 15:23	4,385	35,779,368	13,031,000	1,002,000	2,277,376
11	Jul 15, 2024 15:24	4,385	32,427,720	13,030,000	1,002,000	2,277,376
12	Jul 15, 2024 15:24	4,386	34,765,761	13,033,000	1,002,000	2,506,752
13	Jul 15, 2024 15:23	4,387	32,940,684	13,035,000	1,002,000	2,277,376
14	Jul 15, 2024 15:24	4,390	37,039,002	13,045,000	1,003,000	2,502,656
15	Jul 15, 2024 15:23	4,392	31,899,917	13,050,000	1,003,000	2,510,848
16	Jul 15, 2024 15:24	4,395	35,423,956	13,060,000	1,004,000	2,277,376
17	Jul 15, 2024 15:24	4,398	38,716,317	13,067,000	1,005,000	2,277,376
18	Jul 15, 2024 15:24	4,402	25,938,854	13,079,000	1,006,000	2,502,656
19	Jul 15, 2024 15:24	4,525	29,667,864	14,479,000	0	2,510,848
20	Jul 15, 2024 15:24	4,526	35,189,984	14,484,000	0	2,277,376
21	Jul 15, 2024 15:24	4,529	31,580,334	14,493,000	0	2,277,376
22	Jul 15, 2024 15:24	4,534	34,605,781	14,509,000	0	2,277,376
23	Jul 15, 2024 15:24	4,540	29,665,549	14,529,000	0	2,506,752
24	Jul 15, 2024 15:24	4,552	32,189,700	14,565,000	0	2,510,848
25	Jul 15, 2024 15:24	4,553	32,222,341	14,568,000	0	2,277,376
26	Jul 15, 2024 15:24	4,564	42,839,993	14,605,000	0	2,277,376
27	Jul 15, 2024 15:24	4,569	30,816,727	14,620,000	0	2,277,376
28	Jul 15, 2024 15:23	4,636	82,178,049	14,834,353	0	2,240,512
29	Jul 15, 2024 15:23	4,637	102,304,380	14,839,270	0	2,248,704
30	Jul 15, 2024 15:23	4,637	102,827,951	14,839,218	0	2,252,800
31	Jul 15, 2024 15:24	4,643	87,071,180	14,859,122	0	2,252,800
32	Jul 15, 2024 15:24	4,652	80,145,471	14,885,221	0	2,383,872
33	Jul 15, 2024 15:24	4,661	69,749,698	14,916,503	0	2,244,608
34	Jul 15, 2024 15:24	4,795	82,879,185	15,344,511	0	2,252,800
35	Jul 15, 2024 15:24	4,798	89,577,922	15,354,064	0	2,240,512
36	Jul 15, 2024 15:24	4,807	82,724,913	15,381,902	0	2,375,680

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