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 listJul 8, 2021 15:36

Yuriy Lyfenko

Score: 4,516

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 8, 2021 15:35	4,478	536,640,589	13,308,000	1,023,000	2,265,088
2	Jul 8, 2021 15:35	4,481	534,068,242	13,314,000	1,024,000	2,527,232
3	Jul 8, 2021 15:35	4,483	536,427,575	13,323,000	1,024,000	2,523,136
4	Jul 8, 2021 15:35	4,489	537,253,792	13,340,000	1,026,000	2,523,136
5	Jul 8, 2021 15:36	4,492	535,703,384	13,348,000	1,026,000	2,260,992
6	Jul 8, 2021 15:35	4,496	534,337,228	14,386,000	0	2,260,992
7	Jul 8, 2021 15:35	4,500	535,518,252	13,371,000	1,028,000	2,265,088
8	Jul 8, 2021 15:35	4,503	537,922,582	13,381,000	1,029,000	2,523,136
9	Jul 8, 2021 15:35	4,503	538,903,474	13,382,000	1,029,000	2,396,160
10	Jul 8, 2021 15:35	4,507	536,871,938	14,422,000	0	2,260,992
11	Jul 8, 2021 15:36	4,509	537,160,029	14,429,000	0	2,265,088
12	Jul 8, 2021 15:35	4,509	534,768,351	13,400,000	1,030,000	2,523,136
13	Jul 8, 2021 15:35	4,510	539,894,232	14,432,000	0	2,527,232
14	Jul 8, 2021 15:35	4,512	539,300,279	14,437,000	0	2,265,088
15	Jul 8, 2021 15:36	4,513	539,882,464	14,441,000	0	2,523,136
16	Jul 8, 2021 15:35	4,514	539,716,539	14,444,000	0	2,523,136
17	Jul 8, 2021 15:36	4,515	537,830,721	14,447,000	0	2,523,136
18	Jul 8, 2021 15:35	4,516	539,166,300	14,452,000	0	2,523,136
19	Jul 8, 2021 15:35	4,516	537,451,965	14,450,000	0	2,260,992
20	Jul 8, 2021 15:36	4,520	538,542,743	13,431,000	1,033,000	2,392,064
21	Jul 8, 2021 15:35	4,520	537,467,025	13,431,000	1,033,000	2,265,088
22	Jul 8, 2021 15:36	4,523	539,208,106	14,475,000	0	2,260,992
23	Jul 8, 2021 15:35	4,525	537,220,363	13,447,000	1,034,000	2,265,088
24	Jul 8, 2021 15:36	4,526	539,643,415	13,449,000	1,034,000	2,523,136
25	Jul 8, 2021 15:36	4,527	537,028,396	13,451,000	1,034,000	2,265,088
26	Jul 8, 2021 15:35	4,560	541,561,595	13,619,000	972,000	2,265,088
27	Jul 8, 2021 15:36	4,564	542,627,828	13,633,000	973,000	2,523,136
28	Jul 8, 2021 15:35	4,645	571,893,299	14,865,249	0	2,269,184
29	Jul 8, 2021 15:36	4,647	565,397,364	14,869,779	0	2,244,608
30	Jul 8, 2021 15:35	4,647	572,766,398	14,871,285	0	2,240,512
31	Jul 8, 2021 15:36	4,654	580,446,264	14,893,983	0	2,244,608
32	Jul 8, 2021 15:35	4,657	568,808,826	14,902,148	0	2,273,280
33	Jul 8, 2021 15:35	4,660	583,605,996	14,910,899	0	2,273,280
34	Jul 8, 2021 15:36	4,668	596,106,528	14,938,046	0	2,240,512
35	Jul 8, 2021 15:35	4,671	578,586,760	14,945,896	0	2,273,280
36	Jul 8, 2021 15:35	4,674	600,364,459	14,956,063	0	2,277,376

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