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 23, 2022 00:34

Robert Burke

Score: 4,599

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 23, 2022 00:33	4,562	31,565,151	13,556,000	1,042,000	2,449,408
2	Jul 23, 2022 00:33	4,568	32,615,439	13,574,000	1,044,000	2,281,472
3	Jul 23, 2022 00:33	4,572	26,887,137	13,586,000	1,045,000	2,449,408
4	Jul 23, 2022 00:33	4,577	33,809,847	13,600,000	1,046,000	2,281,472
5	Jul 23, 2022 00:34	4,578	42,509,600	13,604,000	1,046,000	2,281,472
6	Jul 23, 2022 00:33	4,580	44,025,761	13,609,000	1,046,000	2,449,408
7	Jul 23, 2022 00:33	4,581	35,591,051	13,613,000	1,047,000	2,449,408
8	Jul 23, 2022 00:33	4,581	49,545,778	13,611,000	1,047,000	2,449,408
9	Jul 23, 2022 00:33	4,583	42,854,382	13,618,000	1,047,000	2,281,472
10	Jul 23, 2022 00:34	4,589	36,427,991	13,636,000	1,048,000	2,445,312
11	Jul 23, 2022 00:34	4,589	43,192,863	13,636,000	1,048,000	2,437,120
12	Jul 23, 2022 00:33	4,593	30,072,536	13,647,000	1,049,000	2,281,472
13	Jul 23, 2022 00:33	4,593	26,850,535	13,648,000	1,049,000	2,445,312
14	Jul 23, 2022 00:34	4,594	33,046,419	13,650,000	1,050,000	2,453,504
15	Jul 23, 2022 00:33	4,596	36,237,047	13,658,000	1,050,000	2,281,472
16	Jul 23, 2022 00:33	4,596	43,796,607	13,656,000	1,050,000	2,441,216
17	Jul 23, 2022 00:33	4,598	29,124,779	13,662,000	1,050,000	2,449,408
18	Jul 23, 2022 00:34	4,598	33,659,209	13,664,000	1,051,000	2,445,312
19	Jul 23, 2022 00:33	4,599	30,105,998	13,666,000	1,051,000	2,277,376
20	Jul 23, 2022 00:33	4,600	28,326,335	13,669,000	1,051,000	2,449,408
21	Jul 23, 2022 00:34	4,603	29,013,018	13,679,000	1,052,000	2,449,408
22	Jul 23, 2022 00:33	4,603	31,247,841	13,678,000	1,052,000	2,281,472
23	Jul 23, 2022 00:34	4,641	35,221,314	12,870,000	1,980,000	2,281,472
24	Jul 23, 2022 00:34	4,648	39,935,759	13,881,000	991,000	2,453,504
25	Jul 23, 2022 00:34	4,649	33,457,748	12,893,000	1,983,000	2,445,312
26	Jul 23, 2022 00:33	4,651	31,019,898	12,900,000	1,984,000	2,281,472
27	Jul 23, 2022 00:33	4,654	43,250,659	12,908,000	1,985,000	2,445,312
28	Jul 23, 2022 00:33	4,802	60,777,394	15,367,000	0	2,207,744
29	Jul 23, 2022 00:33	4,806	59,974,199	15,377,881	0	2,203,648
30	Jul 23, 2022 00:33	4,807	56,382,022	15,381,523	0	2,207,744
31	Jul 23, 2022 00:34	4,822	89,566,464	15,429,060	0	2,203,648
32	Jul 23, 2022 00:34	4,838	78,627,549	15,480,072	0	2,207,744
33	Jul 23, 2022 00:33	4,838	86,239,634	15,482,247	0	2,215,936
34	Jul 23, 2022 00:34	4,844	98,383,502	15,501,189	0	2,195,456
35	Jul 23, 2022 00:33	4,853	82,779,513	15,530,479	0	2,207,744
36	Jul 23, 2022 00:33	4,868	85,480,032	15,577,085	0	2,199,552

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