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 15:52

Andrey Tsvetkov

Score: 6,160

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 11, 2021 15:51	6,108	44,038,812	18,516,000	1,028,000	2,326,528
2	May 11, 2021 15:51	6,110	34,050,872	18,522,000	1,029,000	2,523,136
3	May 11, 2021 15:52	6,112	40,844,782	17,499,000	2,058,000	2,326,528
4	May 11, 2021 15:51	6,117	45,194,158	19,573,000	0	2,326,528
5	May 11, 2021 15:52	6,119	37,775,895	17,520,000	2,061,000	2,326,528
6	May 11, 2021 15:51	6,120	44,186,167	17,522,000	2,061,000	2,326,528
7	May 11, 2021 15:52	6,121	40,985,741	19,588,000	0	2,326,528
8	May 11, 2021 15:51	6,123	40,250,382	18,564,000	1,031,000	2,404,352
9	May 11, 2021 15:51	6,125	46,497,725	18,568,000	1,031,000	2,531,328
10	May 11, 2021 15:51	6,126	41,165,697	17,539,000	2,063,000	2,531,328
11	May 11, 2021 15:51	6,132	42,453,551	18,589,000	1,032,000	2,535,424
12	May 11, 2021 15:51	6,134	49,050,505	18,595,000	1,033,000	2,330,624
13	May 11, 2021 15:51	6,136	49,267,642	18,601,000	1,033,000	2,523,136
14	May 11, 2021 15:51	6,139	51,388,226	19,645,000	0	2,326,528
15	May 11, 2021 15:52	6,141	47,805,753	18,617,000	1,034,000	2,531,328
16	May 11, 2021 15:52	6,143	49,582,105	17,590,000	2,069,000	2,326,528
17	May 11, 2021 15:51	6,144	47,021,387	18,628,000	1,034,000	2,326,528
18	May 11, 2021 15:52	6,146	45,582,040	19,668,000	0	2,326,528
19	May 11, 2021 15:51	6,148	46,124,259	19,675,000	0	2,330,624
20	May 11, 2021 15:52	6,149	50,089,024	17,605,000	2,071,000	2,527,232
21	May 11, 2021 15:52	6,156	50,538,401	18,664,000	1,036,000	2,326,528
22	May 11, 2021 15:52	6,160	38,222,348	18,676,000	1,037,000	2,326,528
23	May 11, 2021 15:51	6,166	49,031,090	18,692,000	1,038,000	2,523,136
24	May 11, 2021 15:52	6,198	85,578,603	19,832,738	0	2,244,608
25	May 11, 2021 15:51	6,204	83,459,227	19,853,365	0	2,244,608
26	May 11, 2021 15:51	6,209	47,767,606	18,876,000	993,000	2,523,136
27	May 11, 2021 15:51	6,213	85,208,057	19,882,713	0	2,244,608
28	May 11, 2021 15:51	6,213	44,610,576	18,888,000	994,000	2,330,624
29	May 11, 2021 15:51	6,217	45,090,895	17,905,000	1,989,000	2,330,624
30	May 11, 2021 15:51	6,218	45,069,004	18,903,000	994,000	2,531,328
31	May 11, 2021 15:51	6,218	96,608,605	19,897,171	0	2,236,416
32	May 11, 2021 15:52	6,229	79,430,811	19,932,939	0	2,240,512
33	May 11, 2021 15:51	6,245	76,982,142	19,982,712	0	2,240,512
34	May 11, 2021 15:52	6,245	110,359,749	19,984,984	0	2,248,704
35	May 11, 2021 15:51	6,254	88,768,509	20,012,850	0	2,236,416
36	May 11, 2021 15:52	6,298	88,923,315	20,152,863	0	2,240,512
37	May 11, 2021 15:51	6,302	63,986,665	20,166,239	0	2,240,512
38	May 11, 2021 15:52	6,303	78,876,418	20,171,142	0	2,240,512
39	May 11, 2021 15:52	6,320	86,102,476	20,224,746	0	2,240,512
40	May 11, 2021 15:52	6,342	79,206,724	20,292,806	0	2,236,416
41	May 11, 2021 15:52	6,369	102,952,612	20,379,417	0	2,236,416
42	May 11, 2021 15:52	6,427	80,712,677	20,567,564	0	2,244,608

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