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 20, 2024 15:45

Matt Stuchlik

Score: 4,696

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 20, 2024 15:45	4,657	30,751,417	12,915,000	1,986,000	2,273,280
2	Jul 20, 2024 15:45	4,665	43,201,389	12,939,000	1,990,000	2,269,184
3	Jul 20, 2024 15:45	4,669	42,966,261	12,949,000	1,992,000	2,289,664
4	Jul 20, 2024 15:45	4,672	38,227,240	12,956,000	1,993,000	2,289,664
5	Jul 20, 2024 15:45	4,674	42,371,704	12,963,000	1,994,000	2,289,664
6	Jul 20, 2024 15:45	4,675	32,660,263	12,965,000	1,994,000	2,289,664
7	Jul 20, 2024 15:45	4,675	38,659,933	12,965,000	1,994,000	2,289,664
8	Jul 20, 2024 15:45	4,676	35,770,093	12,968,000	1,995,000	2,265,088
9	Jul 20, 2024 15:45	4,676	33,237,619	12,969,000	1,995,000	2,289,664
10	Jul 20, 2024 15:45	4,680	47,121,357	12,980,000	1,997,000	2,289,664
11	Jul 20, 2024 15:45	4,682	37,239,883	13,984,000	998,000	2,289,664
12	Jul 20, 2024 15:45	4,683	38,664,716	12,988,000	1,998,000	2,277,376
13	Jul 20, 2024 15:45	4,685	32,654,363	13,994,000	999,000	2,269,184
14	Jul 20, 2024 15:45	4,686	34,940,822	12,995,000	1,999,000	2,273,280
15	Jul 20, 2024 15:45	4,686	30,721,219	12,995,000	1,999,000	2,277,376
16	Jul 20, 2024 15:45	4,688	32,859,037	13,003,000	2,000,000	2,273,280
17	Jul 20, 2024 15:45	4,691	37,264,049	13,011,000	2,001,000	2,289,664
18	Jul 20, 2024 15:45	4,696	32,603,387	14,026,000	1,001,000	2,265,088
19	Jul 20, 2024 15:45	4,696	32,143,592	13,023,000	2,003,000	2,289,664
20	Jul 20, 2024 15:45	4,698	29,466,336	14,032,000	1,002,000	2,289,664
21	Jul 20, 2024 15:45	4,699	41,833,566	13,032,000	2,004,000	2,289,664
22	Jul 20, 2024 15:45	4,699	42,968,678	13,032,000	2,004,000	2,277,376
23	Jul 20, 2024 15:45	4,703	32,466,918	14,048,000	1,003,000	2,289,664
24	Jul 20, 2024 15:45	4,710	38,347,100	13,062,000	2,009,000	2,289,664
25	Jul 20, 2024 15:45	4,716	37,029,122	13,078,000	2,012,000	2,289,664
26	Jul 20, 2024 15:45	4,721	31,550,342	13,093,000	2,014,000	2,273,280
27	Jul 20, 2024 15:45	4,721	43,308,397	13,093,000	2,014,000	2,531,328
28	Jul 20, 2024 15:45	4,929	112,163,600	15,774,064	0	2,289,664
29	Jul 20, 2024 15:45	4,931	82,989,345	15,779,133	0	2,170,880
30	Jul 20, 2024 15:45	4,943	86,645,664	15,819,163	0	2,281,472
31	Jul 20, 2024 15:45	4,954	79,249,762	15,851,907	0	2,297,856
32	Jul 20, 2024 15:45	4,955	79,107,709	15,855,384	0	2,293,760
33	Jul 20, 2024 15:45	4,958	75,515,103	15,865,148	0	2,285,568
34	Jul 20, 2024 15:45	4,986	90,086,176	15,954,339	0	2,293,760
35	Jul 20, 2024 15:45	4,989	82,097,448	15,965,482	0	2,293,760
36	Jul 20, 2024 15:45	4,990	83,621,538	15,969,248	0	2,281,472

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