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 27, 2021 22:04

Yuriy Lyfenko

Score: 5,142

Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 27, 2021 21:39	5,085	32,035,720	14,238,000	2,034,000	2,265,088
2	May 27, 2021 21:39	5,101	36,339,933	15,304,000	1,020,000	2,260,992
3	May 27, 2021 21:39	5,102	33,704,086	15,307,000	1,020,000	2,387,968
4	May 27, 2021 21:39	5,107	39,079,868	15,322,000	1,021,000	2,392,064
5	May 27, 2021 21:39	5,108	36,048,013	16,344,000	0	2,387,968
6	May 27, 2021 21:39	5,109	40,998,333	16,348,000	0	2,523,136
7	May 27, 2021 21:39	5,111	42,145,838	16,354,000	0	2,523,136
8	May 27, 2021 21:39	5,111	33,727,997	15,333,000	1,022,000	2,392,064
9	May 27, 2021 21:39	5,121	35,041,813	15,362,000	1,024,000	2,265,088
10	May 27, 2021 22:04	5,122	33,501,491	15,366,000	1,024,000	2,519,040
11	May 27, 2021 21:39	5,131	44,605,415	16,418,000	0	2,265,088
12	May 27, 2021 21:39	5,133	35,416,279	15,401,000	1,026,000	2,383,872
13	May 27, 2021 22:04	5,137	43,709,056	15,412,000	1,027,000	2,387,968
14	May 27, 2021 21:39	5,137	43,713,300	15,410,000	1,027,000	2,392,064
15	May 27, 2021 21:39	5,137	36,223,829	16,438,000	0	2,523,136
16	May 27, 2021 21:39	5,137	36,268,155	15,412,000	1,027,000	2,519,040
17	May 27, 2021 22:04	5,141	32,565,936	16,452,000	0	2,523,136
18	May 27, 2021 22:04	5,141	33,724,265	15,424,000	1,028,000	2,260,992
19	May 27, 2021 21:39	5,142	41,818,005	16,455,000	0	2,265,088
20	May 27, 2021 21:39	5,142	43,460,276	16,455,000	0	2,519,040
21	May 27, 2021 22:04	5,143	33,901,814	16,458,000	0	2,260,992
22	May 27, 2021 21:39	5,143	35,362,647	16,456,000	0	2,523,136
23	May 27, 2021 21:39	5,152	38,264,444	15,457,000	1,030,000	2,265,088
24	May 27, 2021 22:04	5,160	44,583,625	16,511,000	0	2,523,136
25	May 27, 2021 22:04	5,161	41,360,396	15,483,000	1,032,000	2,260,992
26	May 27, 2021 22:04	5,164	45,237,473	15,493,000	1,032,000	2,392,064
27	May 27, 2021 22:04	5,173	33,214,012	14,485,000	2,069,000	2,519,040
28	May 27, 2021 21:39	5,296	60,562,349	16,946,396	0	2,281,472
29	May 27, 2021 21:39	5,324	49,361,753	17,035,620	0	2,277,376
30	May 27, 2021 21:39	5,336	74,310,092	17,074,434	0	2,277,376
31	May 27, 2021 21:39	5,376	51,735,483	17,203,524	0	2,277,376
32	May 27, 2021 21:39	5,382	66,222,570	17,223,077	0	2,277,376
33	May 27, 2021 22:04	5,389	62,409,960	17,245,794	0	2,273,280
34	May 27, 2021 22:04	5,396	48,233,929	17,267,227	0	2,277,376
35	May 27, 2021 21:39	5,401	63,444,594	17,284,008	0	2,281,472
36	May 27, 2021 22:04	5,416	75,214,629	17,329,962	0	2,277,376

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