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 11, 2021 15:07

Andrey Tsvetkov

Score: 6,209

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 11, 2021 15:12	6,106	43,553,937	18,511,000	1,028,000	2,330,624
2	May 11, 2021 15:12	6,107	42,018,604	17,484,000	2,057,000	2,318,336
3	May 11, 2021 15:10	6,108	49,747,052	18,519,000	1,028,000	2,531,328
4	May 11, 2021 15:10	6,111	43,082,526	19,555,000	0	2,326,528
5	May 11, 2021 15:10	6,115	40,415,879	19,567,000	0	2,519,040
6	May 11, 2021 15:12	6,116	45,086,537	19,571,000	0	2,523,136
7	May 11, 2021 15:10	6,122	49,082,688	18,559,000	1,031,000	2,531,328
8	May 11, 2021 15:12	6,136	47,009,744	17,569,000	2,067,000	2,330,624
9	May 11, 2021 15:12	6,140	44,431,823	18,614,000	1,034,000	2,523,136
10	May 11, 2021 15:10	6,143	42,387,384	18,622,000	1,034,000	2,531,328
11	May 11, 2021 15:12	6,143	45,642,454	18,623,000	1,034,000	2,523,136
12	May 11, 2021 15:10	6,144	50,607,861	18,628,000	1,034,000	2,326,528
13	May 11, 2021 15:10	6,149	41,732,401	19,678,000	0	2,326,528
14	May 11, 2021 15:12	6,158	45,774,007	19,705,000	0	2,326,528
15	May 11, 2021 15:08	6,200	95,918,469	19,840,374	0	2,240,512
16	May 11, 2021 15:08	6,201	83,133,679	19,844,408	0	2,232,320
17	May 11, 2021 15:10	6,204	104,097,658	19,851,563	0	2,236,416
18	May 11, 2021 15:07	6,207	87,308,936	19,862,396	0	2,240,512
19	May 11, 2021 15:12	6,209	47,926,750	18,876,000	993,000	2,326,528
20	May 11, 2021 15:10	6,211	42,676,055	16,895,000	2,981,000	2,392,064
21	May 11, 2021 15:12	6,213	40,668,706	17,895,000	1,988,000	2,527,232
22	May 11, 2021 15:10	6,213	39,202,543	17,894,000	1,988,000	2,531,328
23	May 11, 2021 15:12	6,230	92,518,122	19,934,948	0	2,228,224
24	May 11, 2021 15:10	6,236	79,167,680	19,955,349	0	2,232,320
25	May 11, 2021 15:12	6,245	88,018,919	19,985,459	0	2,232,320
26	May 11, 2021 15:08	6,258	99,055,164	20,025,059	0	2,236,416
27	May 11, 2021 15:12	6,284	78,730,876	20,108,838	0	2,228,224
28	May 11, 2021 15:08	6,294	79,263,223	20,139,805	0	2,228,224
29	May 11, 2021 15:12	6,294	88,707,208	20,141,925	0	2,240,512
30	May 11, 2021 15:08	6,301	98,639,276	20,164,116	0	2,236,416
31	May 11, 2021 15:12	6,304	86,379,693	20,173,287	0	2,220,032
32	May 11, 2021 15:08	6,306	79,741,043	20,180,730	0	2,228,224
33	May 11, 2021 15:10	6,307	84,989,669	20,181,853	0	2,220,032
34	May 11, 2021 15:12	6,326	86,090,515	20,242,096	0	2,228,224
35	May 11, 2021 15:07	6,343	81,512,503	20,298,108	0	2,236,416
36	May 11, 2021 15:07	6,453	90,158,684	20,650,274	0	2,236,416

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