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 21, 2021 16:35

Dmitry Dolgopolov

Score: 5,373

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 21, 2021 16:35	5,323	32,556,901	15,030,000	2,004,000	2,486,272
2	May 21, 2021 16:34	5,336	41,116,145	15,067,000	2,009,000	2,486,272
3	May 21, 2021 16:35	5,336	50,963,402	15,066,000	2,008,000	2,269,184
4	May 21, 2021 16:34	5,337	40,305,620	16,073,000	1,004,000	2,486,272
5	May 21, 2021 16:34	5,340	39,391,878	16,082,000	1,005,000	2,478,080
6	May 21, 2021 16:35	5,343	34,067,340	15,087,000	2,011,000	2,269,184
7	May 21, 2021 16:34	5,347	39,446,071	16,103,000	1,006,000	2,269,184
8	May 21, 2021 16:35	5,350	33,922,718	16,113,000	1,007,000	2,269,184
9	May 21, 2021 16:34	5,352	34,186,568	16,120,000	1,007,000	2,269,184
10	May 21, 2021 16:34	5,353	44,794,929	15,116,000	2,015,000	2,269,184
11	May 21, 2021 16:35	5,355	48,688,921	16,128,000	1,008,000	2,486,272
12	May 21, 2021 16:34	5,359	41,544,537	16,140,000	1,008,000	2,342,912
13	May 21, 2021 16:34	5,368	41,118,772	16,166,000	1,010,000	2,269,184
14	May 21, 2021 16:35	5,369	45,554,231	15,160,000	2,021,000	2,269,184
15	May 21, 2021 16:34	5,372	43,013,160	15,167,000	2,022,000	2,486,272
16	May 21, 2021 16:35	5,373	42,503,343	16,181,000	1,011,000	2,482,176
17	May 21, 2021 16:35	5,377	31,702,919	16,195,000	1,012,000	2,269,184
18	May 21, 2021 16:35	5,383	44,313,616	15,200,000	2,026,000	2,269,184
19	May 21, 2021 16:34	5,496	104,726,836	17,587,540	0	2,277,376
20	May 21, 2021 16:35	5,499	89,079,663	17,597,225	0	2,281,472
21	May 21, 2021 16:35	5,512	76,702,518	17,639,100	0	2,277,376
22	May 21, 2021 16:34	5,514	83,473,363	17,644,844	0	2,277,376
23	May 21, 2021 16:35	5,519	85,233,490	17,660,689	0	2,273,280
24	May 21, 2021 16:35	5,522	79,411,555	17,670,297	0	2,277,376
25	May 21, 2021 16:34	5,523	82,868,404	17,673,685	0	2,265,088
26	May 21, 2021 16:34	5,531	80,276,957	17,697,965	0	2,281,472
27	May 21, 2021 16:34	5,532	81,098,477	17,703,396	0	2,285,568
28	May 21, 2021 16:35	5,535	68,147,569	17,710,476	0	2,281,472
29	May 21, 2021 16:35	5,561	73,495,555	17,795,543	0	2,277,376
30	May 21, 2021 16:34	5,588	81,056,501	17,882,342	0	2,285,568

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