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 17:24

Matt Stuchlik

Score: 4,693

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 20, 2024 17:24	4,656	32,481,347	12,913,000	1,986,000	2,269,184
2	Jul 20, 2024 17:24	4,660	30,810,585	12,925,000	1,988,000	2,273,280
3	Jul 20, 2024 17:24	4,669	33,872,104	12,949,000	1,992,000	2,285,568
4	Jul 20, 2024 17:24	4,670	33,161,404	12,952,000	1,992,000	2,289,664
5	Jul 20, 2024 17:24	4,671	33,809,429	13,950,000	996,000	2,285,568
6	Jul 20, 2024 17:24	4,673	35,836,435	12,959,000	1,993,000	2,269,184
7	Jul 20, 2024 17:24	4,675	37,065,537	13,963,000	997,000	2,289,664
8	Jul 20, 2024 17:24	4,675	38,228,402	13,962,000	997,000	2,273,280
9	Jul 20, 2024 17:24	4,676	32,250,157	13,965,000	997,000	2,273,280
10	Jul 20, 2024 17:24	4,677	43,206,008	12,970,000	1,995,000	2,265,088
11	Jul 20, 2024 17:24	4,681	30,163,068	12,981,000	1,997,000	2,289,664
12	Jul 20, 2024 17:24	4,682	30,951,640	13,985,000	998,000	2,289,664
13	Jul 20, 2024 17:24	4,684	40,853,285	12,992,000	1,998,000	2,289,664
14	Jul 20, 2024 17:24	4,686	30,693,489	12,996,000	1,999,000	2,265,088
15	Jul 20, 2024 17:24	4,686	30,861,925	13,996,000	999,000	2,383,872
16	Jul 20, 2024 17:24	4,686	37,552,357	12,995,000	1,999,000	2,273,280
17	Jul 20, 2024 17:24	4,693	32,696,919	13,016,000	2,002,000	2,383,872
18	Jul 20, 2024 17:24	4,693	35,921,804	13,016,000	2,002,000	2,289,664
19	Jul 20, 2024 17:24	4,693	38,367,897	13,016,000	2,002,000	2,265,088
20	Jul 20, 2024 17:24	4,694	32,251,280	13,018,000	2,002,000	2,273,280
21	Jul 20, 2024 17:24	4,694	31,734,945	14,020,000	1,001,000	2,289,664
22	Jul 20, 2024 17:24	4,695	33,401,087	13,021,000	2,003,000	2,289,664
23	Jul 20, 2024 17:24	4,698	38,415,479	13,029,000	2,004,000	2,289,664
24	Jul 20, 2024 17:24	4,700	31,915,223	13,035,000	2,005,000	2,269,184
25	Jul 20, 2024 17:24	4,702	32,268,222	13,041,000	2,006,000	2,277,376
26	Jul 20, 2024 17:24	4,705	38,194,654	13,049,000	2,007,000	2,523,136
27	Jul 20, 2024 17:24	4,709	32,302,994	14,066,000	1,004,000	2,281,472
28	Jul 20, 2024 17:24	4,936	85,963,970	15,796,626	0	2,285,568
29	Jul 20, 2024 17:24	4,951	100,266,408	15,843,613	0	2,281,472
30	Jul 20, 2024 17:24	4,952	84,394,355	15,846,254	0	2,293,760
31	Jul 20, 2024 17:24	4,953	103,308,624	15,850,453	0	2,289,664
32	Jul 20, 2024 17:24	4,958	91,758,375	15,864,767	0	2,297,856
33	Jul 20, 2024 17:24	4,960	91,156,998	15,872,870	0	2,293,760
34	Jul 20, 2024 17:24	4,963	67,130,046	15,882,392	0	2,285,568
35	Jul 20, 2024 17:24	4,966	61,577,405	15,891,449	0	2,293,760
36	Jul 20, 2024 17:24	4,994	87,880,117	15,980,264	0	2,170,880

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