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 26, 2022 11:56

Keichi Takahashi

Score: 5,332

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 26, 2022 11:55	5,293	32,578,521	14,944,000	1,992,000	2,392,064
2	May 26, 2022 11:57	5,301	36,771,771	14,967,000	1,995,000	2,383,872
3	May 26, 2022 11:55	5,302	41,126,081	14,971,000	1,996,000	2,265,088
4	May 26, 2022 11:56	5,304	42,467,861	14,977,000	1,997,000	2,387,968
5	May 26, 2022 11:55	5,307	42,245,231	14,984,000	1,997,000	2,265,088
6	May 26, 2022 11:56	5,311	42,760,725	14,996,000	1,999,000	2,387,968
7	May 26, 2022 11:55	5,314	41,724,338	16,006,000	1,000,000	2,527,232
8	May 26, 2022 11:55	5,317	38,648,379	16,014,000	1,000,000	2,392,064
9	May 26, 2022 11:57	5,321	42,794,292	15,023,000	2,003,000	2,265,088
10	May 26, 2022 11:56	5,321	44,796,727	15,025,000	2,003,000	2,265,088
11	May 26, 2022 11:56	5,322	41,713,896	15,026,000	2,003,000	2,379,776
12	May 26, 2022 11:57	5,323	48,898,330	15,029,000	2,003,000	2,527,232
13	May 26, 2022 11:57	5,324	47,293,724	15,032,000	2,004,000	2,396,160
14	May 26, 2022 11:57	5,324	42,625,341	15,034,000	2,004,000	2,387,968
15	May 26, 2022 11:55	5,324	30,011,910	15,034,000	2,004,000	2,265,088
16	May 26, 2022 11:56	5,326	34,936,982	15,038,000	2,005,000	2,387,968
17	May 26, 2022 11:57	5,328	34,618,965	15,043,000	2,005,000	2,265,088
18	May 26, 2022 11:55	5,329	45,808,543	15,048,000	2,006,000	2,265,088
19	May 26, 2022 11:56	5,332	35,628,135	16,060,000	1,003,000	2,265,088
20	May 26, 2022 11:56	5,334	38,339,184	16,066,000	1,004,000	2,387,968
21	May 26, 2022 11:55	5,337	34,290,048	15,069,000	2,009,000	2,265,088
22	May 26, 2022 11:57	5,337	42,429,891	16,073,000	1,004,000	2,265,088
23	May 26, 2022 11:57	5,342	38,488,328	15,082,000	2,011,000	2,265,088
24	May 26, 2022 11:57	5,343	40,945,961	16,092,000	1,005,000	2,265,088
25	May 26, 2022 11:56	5,351	43,913,947	15,108,000	2,014,000	2,265,088
26	May 26, 2022 11:56	5,354	42,163,020	15,117,000	2,015,000	2,469,888
27	May 26, 2022 11:55	5,358	47,761,587	15,129,000	2,017,000	2,523,136
28	May 26, 2022 11:56	5,498	82,871,583	17,594,969	0	2,289,664
29	May 26, 2022 11:56	5,502	83,889,451	17,607,679	0	2,277,376
30	May 26, 2022 11:55	5,506	57,500,785	17,620,336	0	2,285,568
31	May 26, 2022 11:55	5,515	77,009,031	17,649,322	0	2,281,472
32	May 26, 2022 11:57	5,526	94,307,736	17,682,154	0	2,240,512
33	May 26, 2022 11:57	5,531	93,638,734	17,698,653	0	2,269,184
34	May 26, 2022 11:56	5,532	77,629,286	17,701,424	0	2,289,664
35	May 26, 2022 11:57	5,539	94,705,006	17,725,907	0	2,281,472
36	May 26, 2022 11:55	5,542	90,596,186	17,735,429	0	2,285,568

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