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 19:00

Andrey Tsvetkov

Score: 5,694

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 20, 2021 19:00	5,653	42,705,703	15,075,000	3,015,000	2,334,720
2	Jun 20, 2021 19:00	5,663	48,199,284	16,108,000	2,013,000	2,334,720
3	Jun 20, 2021 19:00	5,666	43,827,517	16,118,000	2,014,000	2,334,720
4	Jun 20, 2021 19:08	5,666	40,676,848	15,109,000	3,021,000	2,334,720
5	Jun 20, 2021 19:08	5,666	45,417,667	16,116,000	2,014,000	2,527,232
6	Jun 20, 2021 19:00	5,667	40,670,167	15,113,000	3,022,000	2,330,624
7	Jun 20, 2021 19:00	5,668	46,985,319	16,123,000	2,015,000	2,519,040
8	Jun 20, 2021 19:00	5,668	31,600,370	16,122,000	2,015,000	2,514,944
9	Jun 20, 2021 19:00	5,668	43,874,837	15,115,000	3,023,000	2,527,232
10	Jun 20, 2021 19:00	5,668	44,784,307	15,115,000	3,023,000	2,326,528
11	Jun 20, 2021 19:00	5,668	45,222,815	15,116,000	3,023,000	2,330,624
12	Jun 20, 2021 19:00	5,670	48,036,315	16,128,000	2,016,000	2,527,232
13	Jun 20, 2021 19:00	5,671	44,614,754	15,122,000	3,024,000	2,531,328
14	Jun 20, 2021 19:00	5,674	47,305,027	16,139,000	2,017,000	2,531,328
15	Jun 20, 2021 19:08	5,674	44,268,436	16,139,000	2,017,000	2,334,720
16	Jun 20, 2021 19:08	5,674	35,039,975	16,139,000	2,017,000	2,334,720
17	Jun 20, 2021 19:08	5,677	42,974,204	16,149,000	2,018,000	2,334,720
18	Jun 20, 2021 19:00	5,678	43,199,452	15,141,000	3,028,000	2,314,240
19	Jun 20, 2021 19:08	5,678	46,658,676	15,140,000	3,028,000	2,519,040
20	Jun 20, 2021 19:00	5,680	42,631,753	15,148,000	3,029,000	2,392,064
21	Jun 20, 2021 19:00	5,685	39,226,616	16,170,000	2,021,000	2,334,720
22	Jun 20, 2021 19:08	5,688	38,439,265	15,167,000	3,033,000	2,375,680
23	Jun 20, 2021 19:00	5,688	50,459,125	16,179,000	2,022,000	2,334,720
24	Jun 20, 2021 19:00	5,693	35,765,282	15,181,000	3,036,000	2,359,296
25	Jun 20, 2021 19:00	5,694	37,667,911	15,185,000	3,037,000	2,342,912
26	Jun 20, 2021 19:00	5,695	39,122,579	15,186,000	3,037,000	2,519,040
27	Jun 20, 2021 19:00	5,696	41,779,873	16,201,000	2,025,000	2,531,328
28	Jun 20, 2021 19:00	5,698	39,165,868	16,209,000	2,026,000	2,334,720
29	Jun 20, 2021 19:00	5,699	42,053,314	15,199,000	3,039,000	2,527,232
30	Jun 20, 2021 19:00	5,702	38,394,572	16,218,000	2,027,000	2,334,720
31	Jun 20, 2021 19:08	5,704	42,108,059	15,211,000	3,042,000	2,334,720
32	Jun 20, 2021 19:08	5,708	33,482,052	17,252,000	1,014,000	2,334,720
33	Jun 20, 2021 19:00	5,708	39,163,101	16,238,000	2,029,000	2,334,720
34	Jun 20, 2021 19:00	5,710	40,294,966	15,227,000	3,045,000	2,527,232
35	Jun 20, 2021 19:00	5,712	35,588,845	16,248,000	2,031,000	2,523,136
36	Jun 20, 2021 19:00	5,713	41,673,115	16,249,000	2,031,000	2,334,720
37	Jun 20, 2021 19:00	5,714	102,426,495	18,285,428	0	2,228,224
38	Jun 20, 2021 19:08	5,727	96,138,064	18,326,822	0	2,240,512
39	Jun 20, 2021 19:00	5,729	93,454,866	18,332,027	0	2,232,320
40	Jun 20, 2021 19:00	5,731	76,491,277	18,338,483	0	2,228,224
41	Jun 20, 2021 19:00	5,757	79,736,949	18,421,646	0	2,228,224
42	Jun 20, 2021 19:00	5,761	72,757,032	18,435,344	0	2,236,416
43	Jun 20, 2021 19:00	5,765	61,803,578	18,448,849	0	2,228,224
44	Jun 20, 2021 19:08	5,784	80,208,701	18,510,256	0	2,224,128
45	Jun 20, 2021 19:08	5,848	85,130,674	18,714,225	0	2,236,416
46	Jun 20, 2021 19:00	5,851	82,874,925	18,722,216	0	2,228,224
47	Jun 20, 2021 19:00	5,917	90,069,337	18,934,226	0	2,228,224
48	Jun 20, 2021 19:00	5,920	78,888,957	18,945,439	0	2,232,320

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