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 23, 2021 14:32

Yuriy Lyfenko

Score: 5,102

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 23, 2021 14:39	5,051	33,683,257	14,144,000	2,020,000	2,265,088
2	May 23, 2021 14:33	5,053	40,608,952	14,149,000	2,021,000	2,392,064
3	May 23, 2021 14:32	5,056	37,166,153	15,167,000	1,011,000	2,383,872
4	May 23, 2021 14:33	5,056	34,759,826	14,158,000	2,022,000	2,265,088
5	May 23, 2021 14:39	5,056	33,202,935	14,158,000	2,022,000	2,392,064
6	May 23, 2021 14:33	5,058	40,937,658	14,163,000	2,023,000	2,265,088
7	May 23, 2021 14:39	5,062	33,289,048	14,174,000	2,024,000	2,396,160
8	May 23, 2021 14:33	5,064	36,629,382	14,179,000	2,025,000	2,396,160
9	May 23, 2021 14:39	5,073	32,182,577	15,221,000	1,014,000	2,265,088
10	May 23, 2021 14:33	5,082	44,566,942	15,247,000	1,016,000	2,383,872
11	May 23, 2021 14:32	5,089	33,195,299	14,249,000	2,035,000	2,527,232
12	May 23, 2021 14:32	5,092	38,426,103	15,276,000	1,018,000	2,392,064
13	May 23, 2021 14:32	5,093	42,299,645	14,260,000	2,037,000	2,265,088
14	May 23, 2021 14:39	5,093	42,825,267	15,281,000	1,018,000	2,265,088
15	May 23, 2021 14:32	5,094	40,206,118	16,301,000	0	2,265,088
16	May 23, 2021 14:39	5,094	41,581,750	15,283,000	1,018,000	2,265,088
17	May 23, 2021 14:33	5,099	44,192,168	14,279,000	2,039,000	2,265,088
18	May 23, 2021 14:33	5,102	39,687,962	15,306,000	1,020,000	2,265,088
19	May 23, 2021 14:39	5,102	43,121,774	15,305,000	1,020,000	2,527,232
20	May 23, 2021 14:32	5,110	41,482,603	14,309,000	2,044,000	2,387,968
21	May 23, 2021 14:39	5,115	44,635,433	16,369,000	0	2,392,064
22	May 23, 2021 14:32	5,116	40,259,226	15,349,000	1,023,000	2,387,968
23	May 23, 2021 14:32	5,118	34,799,471	16,376,000	0	2,392,064
24	May 23, 2021 14:32	5,121	38,894,255	15,363,000	1,024,000	2,265,088
25	May 23, 2021 14:39	5,124	34,301,728	16,398,000	0	2,265,088
26	May 23, 2021 14:33	5,136	35,493,835	16,435,000	0	2,506,752
27	May 23, 2021 14:33	5,144	47,256,646	15,494,000	968,000	2,527,232
28	May 23, 2021 14:39	5,258	59,129,191	16,827,135	0	2,269,184
29	May 23, 2021 14:39	5,330	65,741,933	17,056,339	0	2,277,376
30	May 23, 2021 14:33	5,340	85,621,334	17,089,073	0	2,269,184
31	May 23, 2021 14:33	5,346	56,787,185	17,106,990	0	2,273,280
32	May 23, 2021 14:32	5,346	71,762,979	17,107,949	0	2,285,568
33	May 23, 2021 14:39	5,349	82,638,842	17,117,066	0	2,289,664
34	May 23, 2021 14:33	5,351	78,803,118	17,124,029	0	2,273,280
35	May 23, 2021 14:32	5,390	55,360,292	17,247,786	0	2,285,568
36	May 23, 2021 14:32	5,392	84,024,519	17,253,270	0	2,277,376

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