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 24, 2021 17:03

Dmitry Dolgopolov

Score: 5,021

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 24, 2021 17:00	4,986	39,157,104	13,961,000	1,994,000	2,445,312
2	May 24, 2021 17:01	4,989	31,505,842	13,970,000	1,995,000	2,273,280
3	May 24, 2021 17:00	4,992	37,487,670	13,977,000	1,996,000	2,535,424
4	May 24, 2021 17:01	4,993	38,410,896	13,980,000	1,997,000	2,531,328
5	May 24, 2021 17:01	4,994	32,005,628	13,983,000	1,997,000	2,445,312
6	May 24, 2021 17:03	4,994	31,864,812	13,984,000	1,997,000	2,273,280
7	May 24, 2021 17:01	4,997	46,257,226	13,991,000	1,998,000	2,441,216
8	May 24, 2021 17:03	4,998	40,903,678	13,994,000	1,999,000	2,535,424
9	May 24, 2021 17:03	4,999	38,269,728	13,998,000	1,999,000	2,437,120
10	May 24, 2021 17:01	4,999	37,903,988	13,999,000	1,999,000	2,273,280
11	May 24, 2021 17:01	4,999	42,087,012	13,997,000	1,999,000	2,535,424
12	May 24, 2021 17:01	5,004	35,907,812	14,012,000	2,001,000	2,535,424
13	May 24, 2021 17:00	5,008	34,965,913	14,023,000	2,003,000	2,449,408
14	May 24, 2021 17:01	5,008	40,427,953	14,021,000	2,003,000	2,535,424
15	May 24, 2021 17:01	5,009	34,954,158	14,025,000	2,003,000	2,445,312
16	May 24, 2021 17:00	5,010	37,423,429	14,028,000	2,004,000	2,449,408
17	May 24, 2021 17:01	5,011	36,148,730	15,033,000	1,002,000	2,273,280
18	May 24, 2021 17:01	5,016	32,058,011	14,044,000	2,006,000	2,273,280
19	May 24, 2021 17:01	5,016	38,783,669	15,047,000	1,003,000	2,445,312
20	May 24, 2021 17:01	5,017	32,538,064	14,048,000	2,006,000	2,445,312
21	May 24, 2021 17:00	5,018	37,444,234	14,051,000	2,007,000	2,437,120
22	May 24, 2021 17:03	5,020	35,013,120	14,056,000	2,008,000	2,535,424
23	May 24, 2021 17:03	5,021	37,236,663	14,060,000	2,008,000	2,437,120
24	May 24, 2021 17:03	5,021	40,522,537	14,059,000	2,008,000	2,441,216
25	May 24, 2021 17:00	5,021	37,102,187	14,060,000	2,008,000	2,535,424
26	May 24, 2021 17:00	5,023	40,196,315	14,063,000	2,009,000	2,535,424
27	May 24, 2021 17:03	5,026	37,733,760	14,074,000	2,010,000	2,535,424
28	May 24, 2021 17:00	5,029	43,445,304	14,082,000	2,011,000	2,441,216
29	May 24, 2021 17:00	5,029	31,810,122	14,081,000	2,011,000	2,531,328
30	May 24, 2021 17:01	5,030	32,219,885	14,085,000	2,012,000	2,535,424
31	May 24, 2021 17:01	5,031	39,347,084	14,087,000	2,012,000	2,273,280
32	May 24, 2021 17:01	5,031	31,163,299	14,088,000	2,012,000	2,273,280
33	May 24, 2021 17:01	5,033	39,255,173	14,094,000	2,013,000	2,449,408
34	May 24, 2021 17:03	5,033	40,583,077	14,094,000	2,013,000	2,445,312
35	May 24, 2021 17:01	5,043	32,356,639	14,120,000	2,017,000	2,445,312
36	May 24, 2021 17:03	5,053	34,922,146	14,148,000	2,021,000	2,273,280
37	May 24, 2021 17:03	5,231	79,305,199	16,738,161	0	2,260,992
38	May 24, 2021 17:03	5,239	40,162,349	16,765,157	0	2,203,648
39	May 24, 2021 17:00	5,252	45,267,651	16,807,519	0	2,207,744
40	May 24, 2021 17:01	5,255	90,072,709	16,815,812	0	2,195,456
41	May 24, 2021 17:01	5,263	80,224,624	16,840,888	0	2,199,552
42	May 24, 2021 17:01	5,264	63,632,279	16,844,983	0	2,256,896
43	May 24, 2021 17:00	5,275	63,101,885	16,881,041	0	2,199,552
44	May 24, 2021 17:01	5,277	47,907,556	16,885,143	0	2,260,992
45	May 24, 2021 17:01	5,278	49,146,059	16,890,907	0	2,203,648
46	May 24, 2021 17:00	5,282	66,244,096	16,903,967	0	2,199,552
47	May 24, 2021 17:03	5,294	57,919,321	16,940,814	0	2,207,744
48	May 24, 2021 17:01	5,330	80,255,575	17,054,663	0	2,203,648

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