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 28, 2021 20:55

Dmitry Dolgopolov

Score: 5,019

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 28, 2021 20:55	4,978	39,394,872	13,940,000	1,991,000	2,445,312
2	May 28, 2021 20:55	4,984	29,054,077	13,957,000	1,993,000	2,445,312
3	May 28, 2021 20:49	4,984	38,715,642	13,956,000	1,993,000	2,437,120
4	May 28, 2021 20:50	4,990	34,889,264	13,973,000	1,996,000	2,433,024
5	May 28, 2021 20:49	4,992	30,748,497	13,977,000	1,996,000	2,273,280
6	May 28, 2021 20:50	4,994	29,098,031	13,983,000	1,997,000	2,437,120
7	May 28, 2021 20:55	4,994	33,801,230	13,985,000	1,997,000	2,535,424
8	May 28, 2021 20:55	4,995	43,579,365	13,987,000	1,998,000	2,535,424
9	May 28, 2021 20:50	4,996	37,849,083	13,989,000	1,998,000	2,441,216
10	May 28, 2021 20:55	4,998	39,920,568	13,995,000	1,999,000	2,273,280
11	May 28, 2021 20:50	4,999	39,186,565	13,998,000	1,999,000	2,449,408
12	May 28, 2021 20:50	5,000	37,849,638	14,000,000	2,000,000	2,273,280
13	May 28, 2021 20:55	5,001	37,735,088	14,002,000	2,000,000	2,445,312
14	May 28, 2021 20:55	5,005	38,976,829	14,014,000	2,002,000	2,273,280
15	May 28, 2021 20:49	5,005	32,661,405	14,014,000	2,002,000	2,273,280
16	May 28, 2021 20:50	5,007	34,289,140	14,019,000	2,002,000	2,535,424
17	May 28, 2021 20:55	5,008	28,903,317	14,021,000	2,003,000	2,437,120
18	May 28, 2021 20:49	5,010	33,423,803	14,028,000	2,004,000	2,445,312
19	May 28, 2021 20:55	5,012	31,671,004	15,035,000	1,002,000	2,535,424
20	May 28, 2021 20:49	5,012	38,361,857	14,034,000	2,004,000	2,445,312
21	May 28, 2021 20:55	5,016	34,499,037	14,045,000	2,006,000	2,437,120
22	May 28, 2021 20:50	5,017	34,788,759	14,047,000	2,006,000	2,273,280
23	May 28, 2021 20:49	5,018	43,027,544	14,051,000	2,007,000	2,453,504
24	May 28, 2021 20:49	5,018	30,541,286	14,052,000	2,007,000	2,273,280
25	May 28, 2021 20:55	5,019	37,505,004	14,053,000	2,007,000	2,535,424
26	May 28, 2021 20:55	5,021	32,102,668	14,058,000	2,008,000	2,449,408
27	May 28, 2021 20:55	5,021	35,840,309	14,058,000	2,008,000	2,273,280
28	May 28, 2021 20:49	5,021	44,123,566	14,060,000	2,008,000	2,437,120
29	May 28, 2021 20:49	5,024	33,002,444	14,068,000	2,009,000	2,273,280
30	May 28, 2021 20:50	5,028	31,915,710	14,077,000	2,011,000	2,531,328
31	May 28, 2021 20:55	5,029	37,446,778	14,081,000	2,011,000	2,273,280
32	May 28, 2021 20:55	5,034	33,309,781	15,036,000	1,074,000	2,445,312
33	May 28, 2021 20:55	5,041	38,721,345	14,114,000	2,016,000	2,449,408
34	May 28, 2021 20:50	5,043	37,709,628	14,121,000	2,017,000	2,445,312
35	May 28, 2021 20:55	5,047	36,714,445	14,131,000	2,018,000	2,535,424
36	May 28, 2021 20:55	5,050	29,456,660	15,150,000	1,010,000	2,273,280
37	May 28, 2021 20:55	5,226	47,933,104	16,721,671	0	2,195,456
38	May 28, 2021 20:49	5,236	51,795,458	16,756,299	0	2,203,648
39	May 28, 2021 20:50	5,244	52,194,855	16,781,132	0	2,211,840
40	May 28, 2021 20:50	5,253	82,250,381	16,808,963	0	2,199,552
41	May 28, 2021 20:55	5,261	80,609,237	16,835,256	0	2,203,648
42	May 28, 2021 20:55	5,262	63,651,696	16,839,751	0	2,203,648
43	May 28, 2021 20:50	5,263	47,969,504	16,842,793	0	2,207,744
44	May 28, 2021 20:49	5,264	68,164,491	16,844,627	0	2,260,992
45	May 28, 2021 20:49	5,267	59,050,992	16,853,506	0	2,199,552
46	May 28, 2021 20:55	5,269	39,745,423	16,860,403	0	2,207,744
47	May 28, 2021 20:55	5,287	84,274,682	16,919,897	0	2,199,552
48	May 28, 2021 20:55	5,307	47,573,011	16,982,758	0	2,199,552

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