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 listJun 27, 2021 22:49

gchebanov

Score: 5,361

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	Jun 27, 2021 22:49	5,322	47,513,384	15,026,000	2,003,000	2,523,136
2	Jun 27, 2021 22:49	5,326	46,701,814	15,038,000	2,005,000	2,396,160
3	Jun 27, 2021 22:49	5,327	42,709,394	15,042,000	2,005,000	2,265,088
4	Jun 27, 2021 22:49	5,329	46,750,990	15,048,000	2,006,000	2,383,872
5	Jun 27, 2021 22:49	5,329	47,632,010	15,048,000	2,006,000	2,265,088
6	Jun 27, 2021 22:49	5,329	34,443,674	16,050,000	1,003,000	2,265,088
7	Jun 27, 2021 22:49	5,331	43,448,989	15,053,000	2,007,000	2,396,160
8	Jun 27, 2021 22:49	5,338	38,251,459	15,071,000	2,009,000	2,265,088
9	Jun 27, 2021 22:49	5,342	46,322,470	16,088,000	1,005,000	2,265,088
10	Jun 27, 2021 22:49	5,345	45,490,666	16,099,000	1,006,000	2,265,088
11	Jun 27, 2021 22:49	5,348	44,415,126	15,099,000	2,013,000	2,396,160
12	Jun 27, 2021 22:49	5,349	41,512,046	15,103,000	2,013,000	2,392,064
13	Jun 27, 2021 22:49	5,350	46,668,290	15,105,000	2,014,000	2,527,232
14	Jun 27, 2021 22:49	5,351	47,232,757	15,110,000	2,014,000	2,265,088
15	Jun 27, 2021 22:49	5,355	42,450,389	16,128,000	1,008,000	2,265,088
16	Jun 27, 2021 22:49	5,356	42,243,974	16,131,000	1,008,000	2,265,088
17	Jun 27, 2021 22:49	5,358	33,918,268	15,130,000	2,017,000	2,383,872
18	Jun 27, 2021 22:49	5,359	45,381,173	15,131,000	2,017,000	2,265,088
19	Jun 27, 2021 22:49	5,361	34,191,496	16,146,000	1,009,000	2,502,656
20	Jun 27, 2021 22:49	5,368	32,858,220	16,168,000	1,010,000	2,392,064
21	Jun 27, 2021 22:49	5,369	49,353,033	16,170,000	1,010,000	2,379,776
22	Jun 27, 2021 22:49	5,373	45,184,249	16,182,000	1,011,000	2,265,088
23	Jun 27, 2021 22:49	5,374	47,186,393	15,174,000	2,023,000	2,265,088
24	Jun 27, 2021 22:49	5,378	37,927,634	16,198,000	1,012,000	2,387,968
25	Jun 27, 2021 22:49	5,388	35,569,278	16,228,000	1,014,000	2,265,088
26	Jun 27, 2021 22:49	5,394	48,137,041	15,232,000	2,030,000	2,392,064
27	Jun 27, 2021 22:49	5,409	32,999,034	16,290,000	1,018,000	2,392,064
28	Jun 27, 2021 22:49	5,542	85,761,614	17,734,207	0	2,277,376
29	Jun 27, 2021 22:49	5,545	92,766,446	17,745,458	0	2,281,472
30	Jun 27, 2021 22:49	5,547	64,811,010	17,751,309	0	2,273,280
31	Jun 27, 2021 22:49	5,549	88,809,533	17,756,369	0	2,244,608
32	Jun 27, 2021 22:49	5,550	99,412,373	17,759,156	0	2,277,376
33	Jun 27, 2021 22:49	5,564	85,163,101	17,803,706	0	2,273,280
34	Jun 27, 2021 22:49	5,568	68,906,244	17,818,722	0	2,277,376
35	Jun 27, 2021 22:49	5,571	57,714,391	17,827,817	0	2,281,472
36	Jun 27, 2021 22:49	5,601	63,757,670	17,921,628	0	2,265,088

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