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 13, 2021 19:32

Andrey Tsvetkov

Score: 5,695

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 13, 2021 19:32	5,650	45,562,120	15,066,000	3,013,000	2,334,720
2	Jul 13, 2021 19:28	5,662	43,121,926	15,098,000	3,019,000	2,531,328
3	Jul 13, 2021 19:31	5,664	43,600,832	16,112,000	2,014,000	2,334,720
4	Jul 13, 2021 19:28	5,665	51,085,758	16,115,000	2,014,000	2,334,720
5	Jul 13, 2021 19:32	5,665	44,261,351	16,114,000	2,014,000	2,531,328
6	Jul 13, 2021 19:31	5,666	43,766,570	16,118,000	2,014,000	2,531,328
7	Jul 13, 2021 19:31	5,668	44,924,432	16,124,000	2,015,000	2,392,064
8	Jul 13, 2021 19:28	5,668	44,321,244	15,114,000	3,022,000	2,334,720
9	Jul 13, 2021 19:32	5,671	45,015,330	15,123,000	3,024,000	2,531,328
10	Jul 13, 2021 19:28	5,673	43,290,613	16,137,000	2,017,000	2,531,328
11	Jul 13, 2021 19:32	5,673	45,995,112	15,128,000	3,025,000	2,334,720
12	Jul 13, 2021 19:32	5,674	79,396,060	18,156,423	0	2,240,512
13	Jul 13, 2021 19:31	5,676	48,784,778	16,145,000	2,018,000	2,334,720
14	Jul 13, 2021 19:31	5,677	41,758,453	15,138,000	3,027,000	2,527,232
15	Jul 13, 2021 19:28	5,678	45,891,754	16,152,000	2,019,000	2,519,040
16	Jul 13, 2021 19:32	5,680	35,406,907	17,166,000	1,009,000	2,527,232
17	Jul 13, 2021 19:32	5,690	95,246,966	18,207,600	0	2,232,320
18	Jul 13, 2021 19:32	5,692	39,360,825	16,190,000	2,023,000	2,531,328
19	Jul 13, 2021 19:31	5,695	43,227,955	15,186,000	3,037,000	2,334,720
20	Jul 13, 2021 19:32	5,696	37,590,251	16,201,000	2,025,000	2,334,720
21	Jul 13, 2021 19:31	5,696	44,051,639	16,203,000	2,025,000	2,527,232
22	Jul 13, 2021 19:32	5,697	33,854,425	15,193,000	3,038,000	2,334,720
23	Jul 13, 2021 19:28	5,697	39,851,128	16,204,000	2,025,000	2,334,720
24	Jul 13, 2021 19:31	5,699	76,357,296	18,237,808	0	2,224,128
25	Jul 13, 2021 19:31	5,699	44,199,900	16,212,000	2,026,000	2,330,624
26	Jul 13, 2021 19:28	5,701	83,567,146	18,243,739	0	2,236,416
27	Jul 13, 2021 19:28	5,702	59,616,931	18,245,231	0	2,240,512
28	Jul 13, 2021 19:28	5,702	43,471,521	15,206,000	3,041,000	2,523,136
29	Jul 13, 2021 19:28	5,703	39,719,229	14,195,000	4,055,000	2,334,720
30	Jul 13, 2021 19:32	5,704	48,188,929	16,226,000	2,028,000	2,334,720
31	Jul 13, 2021 19:28	5,706	45,082,126	16,231,000	2,028,000	2,334,720
32	Jul 13, 2021 19:31	5,728	42,832,153	15,275,000	3,055,000	2,334,720
33	Jul 13, 2021 19:31	5,731	91,802,859	18,340,624	0	2,232,320
34	Jul 13, 2021 19:32	5,750	82,474,827	18,401,538	0	2,240,512
35	Jul 13, 2021 19:31	5,809	86,962,886	18,588,369	0	2,240,512
36	Jul 13, 2021 19:28	5,842	90,529,148	18,693,732	0	2,236,416

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