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 20, 2021 20:17

Dmitry Dolgopolov

Score: 6,020

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 20, 2021 20:08	5,921	44,902,777	16,954,000	1,994,000	2,293,760
2	May 20, 2021 20:04	5,945	42,359,232	16,020,000	3,003,000	2,293,760
3	May 20, 2021 20:17	5,947	34,815,203	16,025,000	3,004,000	2,293,760
4	May 20, 2021 20:08	5,949	38,035,953	16,031,000	3,005,000	2,293,760
5	May 20, 2021 20:04	5,951	43,105,414	16,037,000	3,007,000	2,510,848
6	May 20, 2021 20:04	5,952	46,617,808	16,039,000	3,007,000	2,510,848
7	May 20, 2021 20:08	5,953	40,985,483	16,042,000	3,008,000	2,293,760
8	May 20, 2021 20:17	5,953	39,261,680	16,041,000	3,007,000	2,519,040
9	May 20, 2021 20:17	5,954	41,555,211	17,047,000	2,005,000	2,293,760
10	May 20, 2021 20:04	5,954	40,430,891	16,046,000	3,008,000	2,293,760
11	May 20, 2021 20:04	5,963	44,309,254	17,072,000	2,008,000	2,293,760
12	May 20, 2021 20:08	5,970	41,126,353	16,087,000	3,016,000	2,293,760
13	May 20, 2021 20:08	5,971	39,581,341	17,096,000	2,011,000	2,293,760
14	May 20, 2021 20:04	5,976	44,638,638	16,105,000	3,019,000	2,510,848
15	May 20, 2021 20:08	5,979	47,929,298	16,113,000	3,021,000	2,510,848
16	May 20, 2021 20:17	5,983	45,218,135	17,129,000	2,015,000	2,293,760
17	May 20, 2021 20:04	5,996	38,114,455	16,158,000	3,029,000	2,510,848
18	May 20, 2021 20:17	5,998	41,634,240	17,175,000	2,020,000	2,293,760
19	May 20, 2021 20:08	5,999	46,279,311	16,165,000	3,031,000	2,293,760
20	May 20, 2021 20:17	6,002	42,236,547	16,173,000	3,032,000	2,293,760
21	May 20, 2021 20:17	6,007	43,813,888	16,188,000	3,035,000	2,506,752
22	May 20, 2021 20:04	6,012	45,102,990	17,214,000	2,025,000	2,510,848
23	May 20, 2021 20:17	6,020	41,809,721	17,236,000	2,027,000	2,424,832
24	May 20, 2021 20:08	6,020	39,896,573	16,222,000	3,041,000	2,506,752
25	May 20, 2021 20:04	6,020	38,889,440	16,222,000	3,041,000	2,359,296
26	May 20, 2021 20:17	6,027	48,412,340	16,242,000	3,045,000	2,506,752
27	May 20, 2021 20:08	6,041	36,017,413	16,278,000	3,052,000	2,326,528
28	May 20, 2021 20:17	6,068	76,296,804	19,416,840	0	2,174,976
29	May 20, 2021 20:17	6,072	82,241,075	19,431,509	0	2,174,976
30	May 20, 2021 20:08	6,083	96,724,250	19,464,955	0	2,301,952
31	May 20, 2021 20:08	6,085	85,907,322	19,470,570	0	2,170,880
32	May 20, 2021 20:08	6,085	83,107,836	19,473,583	0	2,301,952
33	May 20, 2021 20:17	6,093	89,258,186	19,498,247	0	2,174,976
34	May 20, 2021 20:08	6,099	91,815,343	19,515,576	0	2,179,072
35	May 20, 2021 20:04	6,100	90,065,168	19,518,849	0	2,183,168
36	May 20, 2021 20:17	6,114	77,473,024	19,563,379	0	2,174,976
37	May 20, 2021 20:04	6,124	84,293,595	19,596,300	0	2,170,880
38	May 20, 2021 20:17	6,125	96,787,522	19,600,775	0	2,174,976
39	May 20, 2021 20:04	6,131	86,351,018	19,617,929	0	2,174,976
40	May 20, 2021 20:04	6,153	81,760,580	19,688,199	0	2,297,856
41	May 20, 2021 20:04	6,167	62,452,336	19,732,903	0	2,170,880
42	May 20, 2021 20:04	6,176	87,661,950	19,763,432	0	2,174,976
43	May 20, 2021 20:17	6,179	64,517,852	19,774,210	0	2,170,880
44	May 20, 2021 20:08	6,186	101,065,291	19,796,632	0	2,297,856
45	May 20, 2021 20:08	6,435	65,351,776	20,591,787	0	2,174,976

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