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 listJun 20, 2021 18:56

Andrey Tsvetkov

Score: 5,747

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 20, 2021 18:56	5,699	38,919,874	16,210,000	2,026,000	2,334,720
2	Jun 20, 2021 18:56	5,700	37,471,978	15,201,000	3,040,000	2,334,720
3	Jun 20, 2021 18:56	5,702	41,065,564	15,205,000	3,041,000	2,527,232
4	Jun 20, 2021 18:58	5,707	40,198,921	15,218,000	3,043,000	2,531,328
5	Jun 20, 2021 18:56	5,708	37,072,038	16,237,000	2,029,000	2,334,720
6	Jun 20, 2021 18:56	5,709	39,365,201	15,225,000	3,045,000	2,527,232
7	Jun 20, 2021 18:58	5,719	43,099,335	15,250,000	3,050,000	2,334,720
8	Jun 20, 2021 18:56	5,719	41,936,152	16,269,000	2,033,000	2,392,064
9	Jun 20, 2021 18:56	5,720	41,871,548	15,253,000	3,050,000	2,334,720
10	Jun 20, 2021 18:56	5,723	47,514,909	16,279,000	2,034,000	2,531,328
11	Jun 20, 2021 18:58	5,724	46,210,838	16,282,000	2,035,000	2,519,040
12	Jun 20, 2021 18:58	5,727	40,990,150	16,291,000	2,036,000	2,527,232
13	Jun 20, 2021 18:58	5,728	38,076,351	15,274,000	3,054,000	2,392,064
14	Jun 20, 2021 18:56	5,734	36,653,826	16,310,000	2,038,000	2,326,528
15	Jun 20, 2021 18:56	5,736	40,448,849	16,316,000	2,039,000	2,527,232
16	Jun 20, 2021 18:58	5,738	41,196,070	15,300,000	3,060,000	2,334,720
17	Jun 20, 2021 18:56	5,738	45,047,611	16,320,000	2,040,000	2,334,720
18	Jun 20, 2021 18:56	5,744	43,418,456	16,338,000	2,042,000	2,330,624
19	Jun 20, 2021 18:58	5,747	38,458,942	17,370,000	1,021,000	2,523,136
20	Jun 20, 2021 18:56	5,749	46,214,736	15,331,000	3,066,000	2,334,720
21	Jun 20, 2021 18:58	5,756	46,777,204	16,374,000	2,046,000	2,334,720
22	Jun 20, 2021 18:56	5,757	38,589,619	16,376,000	2,047,000	2,383,872
23	Jun 20, 2021 18:58	5,758	38,980,937	18,425,000	0	2,334,720
24	Jun 20, 2021 18:56	5,758	43,814,783	15,356,000	3,071,000	2,531,328
25	Jun 20, 2021 18:58	5,762	77,244,826	18,437,163	0	2,236,416
26	Jun 20, 2021 18:56	5,765	52,256,015	16,398,000	2,049,000	2,322,432
27	Jun 20, 2021 18:56	5,774	61,965,708	18,475,923	0	2,228,224
28	Jun 20, 2021 18:58	5,783	79,033,556	18,505,487	0	2,236,416
29	Jun 20, 2021 18:56	5,784	40,674,987	18,509,000	0	2,334,720
30	Jun 20, 2021 18:56	5,786	32,388,861	17,486,000	1,028,000	2,527,232
31	Jun 20, 2021 18:56	5,810	81,613,911	18,590,417	0	2,244,608
32	Jun 20, 2021 18:56	5,814	78,519,748	18,604,859	0	2,232,320
33	Jun 20, 2021 18:56	5,827	79,256,525	18,647,328	0	2,232,320
34	Jun 20, 2021 18:56	5,894	87,806,274	18,859,925	0	2,236,416
35	Jun 20, 2021 18:58	5,901	93,707,106	18,884,099	0	2,224,128
36	Jun 20, 2021 18:56	5,946	105,923,161	19,027,644	0	2,248,704

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