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 listMay 14, 2021 21:01

Yuriy Lyfenko

Score: 6,191

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 14, 2021 21:00	6,088	35,740,615	17,432,000	2,050,000	2,519,040
2	May 14, 2021 21:01	6,114	37,605,517	17,507,000	2,059,000	2,326,528
3	May 14, 2021 21:01	6,114	41,019,014	17,505,000	2,059,000	2,519,040
4	May 14, 2021 21:00	6,116	40,215,488	17,510,000	2,060,000	2,519,040
5	May 14, 2021 21:00	6,118	46,283,062	18,546,000	1,030,000	2,506,752
6	May 14, 2021 21:00	6,128	44,972,670	18,579,000	1,032,000	2,330,624
7	May 14, 2021 21:01	6,129	49,520,323	17,549,000	2,064,000	2,514,944
8	May 12, 2021 20:57	6,129	46,999,874	17,549,000	2,064,000	2,519,040
9	May 12, 2021 20:57	6,130	46,781,035	17,551,000	2,064,000	2,519,040
10	May 12, 2021 20:57	6,131	46,737,001	17,553,000	2,065,000	2,519,040
11	May 14, 2021 21:00	6,131	46,312,025	18,588,000	1,032,000	2,510,848
12	May 14, 2021 21:01	6,131	43,428,201	18,587,000	1,032,000	2,326,528
13	May 14, 2021 21:01	6,138	43,284,262	18,609,000	1,033,000	2,519,040
14	May 12, 2021 20:57	6,143	45,332,366	18,623,000	1,034,000	2,514,944
15	May 12, 2021 20:57	6,147	45,440,580	18,635,000	1,035,000	2,519,040
16	May 14, 2021 21:00	6,148	45,412,576	19,673,000	0	2,326,528
17	May 14, 2021 21:01	6,150	50,066,042	15,537,000	4,143,000	2,326,528
18	May 12, 2021 20:57	6,165	51,014,593	19,727,000	0	2,326,528
19	May 12, 2021 20:57	6,165	43,143,811	18,690,000	1,038,000	2,326,528
20	May 14, 2021 21:00	6,178	45,669,709	18,729,000	1,040,000	2,326,528
21	May 14, 2021 21:01	6,191	93,621,219	19,811,799	0	2,224,128
22	May 12, 2021 20:57	6,191	77,180,493	19,811,498	0	2,228,224
23	May 14, 2021 21:01	6,201	52,458,509	18,850,000	992,000	2,523,136
24	May 14, 2021 21:01	6,202	44,537,338	17,863,000	1,984,000	2,514,944
25	May 12, 2021 20:57	6,203	94,929,480	19,850,990	0	2,232,320
26	May 14, 2021 21:01	6,207	45,357,981	16,884,000	2,979,000	2,326,528
27	May 14, 2021 21:00	6,208	46,314,358	17,878,000	1,986,000	2,387,968
28	May 12, 2021 20:57	6,210	44,224,608	18,878,000	993,000	2,514,944
29	May 14, 2021 21:01	6,211	92,197,247	19,876,695	0	2,228,224
30	May 14, 2021 21:00	6,211	83,424,044	19,875,259	0	2,228,224
31	May 14, 2021 21:00	6,215	46,566,102	17,900,000	1,988,000	2,326,528
32	May 14, 2021 21:01	6,222	85,674,506	19,910,828	0	2,224,128
33	May 14, 2021 21:00	6,223	77,101,495	19,912,408	0	2,224,128
34	May 12, 2021 20:57	6,227	44,323,802	19,926,000	0	2,514,944
35	May 14, 2021 21:00	6,240	89,177,411	19,969,272	0	2,224,128
36	May 14, 2021 21:01	6,245	105,511,134	19,983,602	0	2,224,128
37	May 14, 2021 21:01	6,247	86,527,298	19,989,859	0	2,240,512
38	May 14, 2021 21:01	6,297	75,034,600	20,150,781	0	2,211,840
39	May 14, 2021 21:01	6,304	75,941,380	20,173,403	0	2,224,128
40	May 12, 2021 20:57	6,318	87,355,256	20,216,850	0	2,228,224
41	May 14, 2021 21:01	6,357	94,364,820	20,343,416	0	2,215,936
42	May 14, 2021 21:01	6,371	78,111,154	20,388,152	0	2,232,320

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