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 24, 2022 13:48

Robert Burke

Score: 4,458

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 24, 2022 13:48	4,423	30,478,665	12,132,000	2,022,000	2,281,472
2	Jul 24, 2022 13:47	4,424	36,649,241	12,134,000	2,022,000	2,453,504
3	Jul 24, 2022 13:36	4,425	33,117,955	12,137,000	2,022,000	2,445,312
4	Jul 24, 2022 13:48	4,428	34,029,555	12,144,000	2,024,000	2,277,376
5	Jul 24, 2022 13:36	4,429	43,653,799	12,149,000	2,024,000	2,445,312
6	Jul 24, 2022 13:47	4,430	31,972,829	12,152,000	2,025,000	2,449,408
7	Jul 24, 2022 13:36	4,436	30,109,710	12,168,000	2,028,000	2,281,472
8	Jul 24, 2022 13:36	4,441	27,564,896	12,180,000	2,030,000	2,437,120
9	Jul 24, 2022 13:47	4,441	31,335,031	12,180,000	2,030,000	2,281,472
10	Jul 24, 2022 13:48	4,443	38,216,396	12,187,000	2,031,000	2,281,472
11	Jul 24, 2022 13:36	4,448	32,728,119	13,219,000	1,016,000	2,281,472
12	Jul 24, 2022 13:48	4,448	33,564,468	12,200,000	2,033,000	2,441,216
13	Jul 24, 2022 13:47	4,448	30,993,781	12,200,000	2,033,000	2,449,408
14	Jul 24, 2022 13:48	4,453	29,004,733	12,215,000	2,035,000	2,441,216
15	Jul 24, 2022 13:47	4,453	45,455,941	12,213,000	2,035,000	2,445,312
16	Jul 24, 2022 13:36	4,455	33,545,982	13,237,000	1,018,000	2,445,312
17	Jul 24, 2022 13:36	4,455	30,285,342	13,238,000	1,018,000	2,281,472
18	Jul 24, 2022 13:47	4,457	29,174,673	12,225,000	2,037,000	2,281,472
19	Jul 24, 2022 13:36	4,458	30,489,095	13,248,000	1,019,000	2,281,472
20	Jul 24, 2022 13:48	4,459	31,742,154	13,249,000	1,019,000	2,281,472
21	Jul 24, 2022 13:47	4,459	30,316,523	12,232,000	2,038,000	2,277,376
22	Jul 24, 2022 13:48	4,460	29,759,378	13,252,000	1,019,000	2,281,472
23	Jul 24, 2022 13:47	4,461	26,783,006	13,256,000	1,019,000	2,535,424
24	Jul 24, 2022 13:48	4,462	34,256,142	13,259,000	1,019,000	2,445,312
25	Jul 24, 2022 13:36	4,466	36,427,667	13,271,000	1,020,000	2,449,408
26	Jul 24, 2022 13:48	4,466	39,176,614	12,251,000	2,041,000	2,449,408
27	Jul 24, 2022 13:47	4,469	36,607,513	12,259,000	2,043,000	2,281,472
28	Jul 24, 2022 13:36	4,687	79,413,904	14,998,835	0	2,207,744
29	Jul 24, 2022 13:36	4,691	84,086,476	15,012,264	0	2,195,456
30	Jul 24, 2022 13:48	4,695	82,494,656	15,025,060	0	2,211,840
31	Jul 24, 2022 13:47	4,696	85,473,211	15,026,208	0	2,203,648
32	Jul 24, 2022 13:47	4,697	79,576,663	15,031,058	0	2,207,744
33	Jul 24, 2022 13:48	4,704	57,959,069	15,054,126	0	2,203,648
34	Jul 24, 2022 13:48	4,708	92,320,095	15,065,431	0	2,211,840
35	Jul 24, 2022 13:47	4,718	77,114,986	15,096,722	0	2,211,840
36	Jul 24, 2022 13:36	4,720	114,404,040	15,103,366	0	2,203,648

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