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 listJul 27, 2022 11:43

Robert Burke

Score: 4,458

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 27, 2022 11:44	4,423	33,917,278	12,132,000	2,022,000	2,453,504
2	Jul 27, 2022 11:41	4,427	26,305,320	12,142,000	2,023,000	2,281,472
3	Jul 27, 2022 11:44	4,428	33,680,821	12,147,000	2,024,000	2,281,472
4	Jul 27, 2022 11:43	4,433	29,085,255	12,159,000	2,026,000	2,453,504
5	Jul 27, 2022 11:43	4,435	28,419,443	12,165,000	2,027,000	2,449,408
6	Jul 27, 2022 11:44	4,438	30,175,508	12,172,000	2,028,000	2,281,472
7	Jul 27, 2022 11:41	4,442	33,856,232	12,183,000	2,030,000	2,281,472
8	Jul 27, 2022 11:44	4,442	31,345,325	12,183,000	2,030,000	2,281,472
9	Jul 27, 2022 11:41	4,443	37,802,525	12,188,000	2,031,000	2,281,472
10	Jul 27, 2022 11:43	4,443	36,844,235	12,188,000	2,031,000	2,281,472
11	Jul 27, 2022 11:44	4,445	27,931,450	12,192,000	2,032,000	2,445,312
12	Jul 27, 2022 11:41	4,446	31,174,766	12,196,000	2,032,000	2,281,472
13	Jul 27, 2022 11:43	4,446	33,760,292	12,194,000	2,032,000	2,281,472
14	Jul 27, 2022 11:44	4,446	33,116,790	12,194,000	2,032,000	2,281,472
15	Jul 27, 2022 11:44	4,449	28,227,972	12,203,000	2,033,000	2,281,472
16	Jul 27, 2022 11:44	4,452	31,386,853	13,228,000	1,017,000	2,449,408
17	Jul 27, 2022 11:44	4,452	32,750,109	12,212,000	2,035,000	2,281,472
18	Jul 27, 2022 11:41	4,453	41,306,506	12,213,000	2,035,000	2,281,472
19	Jul 27, 2022 11:41	4,454	31,450,692	12,216,000	2,036,000	2,277,376
20	Jul 27, 2022 11:41	4,454	41,360,797	12,218,000	2,036,000	2,281,472
21	Jul 27, 2022 11:41	4,455	26,382,520	12,220,000	2,036,000	2,281,472
22	Jul 27, 2022 11:44	4,456	38,486,563	12,222,000	2,037,000	2,281,472
23	Jul 27, 2022 11:44	4,456	32,991,948	13,241,000	1,018,000	2,445,312
24	Jul 27, 2022 11:44	4,457	36,692,554	12,224,000	2,037,000	2,449,408
25	Jul 27, 2022 11:44	4,458	38,761,992	13,247,000	1,019,000	2,281,472
26	Jul 27, 2022 11:44	4,459	36,982,753	13,250,000	1,019,000	2,281,472
27	Jul 27, 2022 11:43	4,459	30,055,950	13,172,000	1,097,000	2,281,472
28	Jul 27, 2022 11:44	4,460	30,675,842	13,252,000	1,019,000	2,281,472
29	Jul 27, 2022 11:44	4,460	30,018,352	13,254,000	1,019,000	2,277,376
30	Jul 27, 2022 11:43	4,462	33,067,972	13,259,000	1,019,000	2,441,216
31	Jul 27, 2022 11:44	4,463	31,090,971	13,261,000	1,020,000	2,281,472
32	Jul 27, 2022 11:43	4,463	38,692,746	13,262,000	1,020,000	2,281,472
33	Jul 27, 2022 11:43	4,463	34,313,576	13,262,000	1,020,000	2,453,504
34	Jul 27, 2022 11:44	4,464	29,792,984	13,265,000	1,020,000	2,281,472
35	Jul 27, 2022 11:43	4,470	35,648,675	13,284,000	1,021,000	2,281,472
36	Jul 27, 2022 11:41	4,472	33,328,919	12,266,000	2,044,000	2,441,216
37	Jul 27, 2022 11:41	4,680	84,792,734	14,975,850	0	2,203,648
38	Jul 27, 2022 11:41	4,681	79,979,474	14,978,989	0	2,203,648
39	Jul 27, 2022 11:43	4,684	79,369,343	14,988,493	0	2,195,456
40	Jul 27, 2022 11:43	4,686	78,732,286	14,996,185	0	2,207,744
41	Jul 27, 2022 11:41	4,689	64,105,723	15,003,766	0	2,207,744
42	Jul 27, 2022 11:44	4,696	75,862,200	15,026,360	0	2,203,648
43	Jul 27, 2022 11:44	4,704	79,989,906	15,052,830	0	2,207,744
44	Jul 27, 2022 11:44	4,718	58,151,474	15,096,023	0	2,203,648
45	Jul 27, 2022 11:44	4,718	77,725,487	15,097,411	0	2,211,840
46	Jul 27, 2022 11:43	4,720	68,555,771	15,103,309	0	2,195,456
47	Jul 27, 2022 11:44	4,730	100,151,611	15,135,754	0	2,224,128
48	Jul 27, 2022 11:44	4,732	82,146,144	15,141,782	0	2,207,744

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