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 23, 2024 14:40

matsuoka-601

Score: 4,471

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 23, 2024 15:00	4,438	37,116,080	12,174,000	2,029,000	2,285,568
2	Jul 23, 2024 14:40	4,444	36,586,599	13,206,000	1,015,000	2,285,568
3	Jul 23, 2024 15:00	4,445	34,122,957	13,209,000	1,016,000	2,285,568
4	Jul 23, 2024 15:00	4,449	30,507,957	12,204,000	2,034,000	2,285,568
5	Jul 23, 2024 15:00	4,451	37,800,827	13,225,000	1,017,000	2,285,568
6	Jul 23, 2024 15:00	4,453	30,447,048	12,215,000	2,035,000	2,408,448
7	Jul 23, 2024 14:40	4,454	30,327,488	13,234,000	1,018,000	2,396,160
8	Jul 23, 2024 14:40	4,456	34,090,665	12,222,000	2,037,000	2,404,352
9	Jul 23, 2024 14:40	4,461	32,105,671	13,255,000	1,019,000	2,396,160
10	Jul 23, 2024 15:00	4,461	37,661,954	14,275,000	0	2,404,352
11	Jul 23, 2024 15:00	4,461	30,973,933	13,257,000	1,019,000	2,412,544
12	Jul 23, 2024 15:00	4,462	32,692,721	12,239,000	2,039,000	2,277,376
13	Jul 23, 2024 15:00	4,463	33,743,978	12,241,000	2,040,000	2,285,568
14	Jul 23, 2024 15:00	4,463	31,462,863	13,263,000	1,020,000	2,519,040
15	Jul 23, 2024 15:00	4,463	43,281,598	13,262,000	1,020,000	2,400,256
16	Jul 23, 2024 14:40	4,464	33,477,116	12,245,000	2,040,000	2,285,568
17	Jul 23, 2024 15:00	4,466	38,168,529	14,291,000	0	2,285,568
18	Jul 23, 2024 15:00	4,470	37,174,591	14,304,000	0	2,510,848
19	Jul 23, 2024 14:40	4,471	31,742,672	13,285,000	1,021,000	2,285,568
20	Jul 23, 2024 14:40	4,471	36,508,654	14,307,000	0	2,285,568
21	Jul 23, 2024 14:40	4,473	32,830,422	14,315,000	0	2,285,568
22	Jul 23, 2024 14:40	4,474	33,639,073	14,317,000	0	2,285,568
23	Jul 23, 2024 15:00	4,482	29,221,242	13,319,000	1,024,000	2,519,040
24	Jul 23, 2024 15:00	4,488	36,692,102	14,361,000	0	2,285,568
25	Jul 23, 2024 15:00	4,488	30,275,989	13,335,000	1,025,000	2,404,352
26	Jul 23, 2024 15:00	4,496	32,471,514	13,360,000	1,027,000	2,285,568
27	Jul 23, 2024 15:00	4,511	33,363,340	12,511,000	1,924,000	2,285,568
28	Jul 23, 2024 15:00	4,710	77,588,530	15,072,437	0	2,297,856
29	Jul 23, 2024 15:00	4,719	77,821,702	15,099,835	0	2,293,760
30	Jul 23, 2024 15:00	4,733	88,973,000	15,144,460	0	2,306,048
31	Jul 23, 2024 15:00	4,734	75,691,578	15,149,206	0	2,310,144
32	Jul 23, 2024 14:40	4,738	74,074,551	15,162,336	0	2,301,952
33	Jul 23, 2024 14:40	4,738	75,734,516	15,160,699	0	2,306,048
34	Jul 23, 2024 15:00	4,740	95,670,510	15,167,762	0	2,174,976
35	Jul 23, 2024 14:40	4,750	91,695,374	15,199,353	0	2,301,952
36	Jul 23, 2024 15:00	4,761	95,585,821	15,235,121	0	2,174,976

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