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 18:27

Yuriy Lyfenko

Score: 5,064

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 18:27	5,012	34,208,773	14,034,000	2,004,000	2,387,968
2	May 27, 2021 18:30	5,016	31,372,404	15,049,000	1,003,000	2,392,064
3	May 27, 2021 18:31	5,024	34,135,378	14,067,000	2,009,000	2,265,088
4	May 27, 2021 18:31	5,026	42,775,407	15,077,000	1,005,000	2,265,088
5	May 27, 2021 18:27	5,028	45,218,958	14,079,000	2,011,000	2,392,064
6	May 27, 2021 18:30	5,030	30,417,784	14,085,000	2,012,000	2,265,088
7	May 27, 2021 18:31	5,031	42,939,974	15,093,000	1,006,000	2,379,776
8	May 27, 2021 18:31	5,035	36,709,052	14,099,000	2,014,000	2,392,064
9	May 27, 2021 18:31	5,037	37,756,308	15,110,000	1,007,000	2,392,064
10	May 27, 2021 18:27	5,038	31,133,937	14,105,000	2,015,000	2,265,088
11	May 27, 2021 18:30	5,043	31,745,923	14,120,000	2,017,000	2,392,064
12	May 27, 2021 18:31	5,043	32,631,309	15,130,000	1,008,000	2,269,184
13	May 27, 2021 18:30	5,048	42,985,053	14,134,000	2,019,000	2,265,088
14	May 27, 2021 18:27	5,050	39,156,118	15,151,000	1,010,000	2,265,088
15	May 27, 2021 18:27	5,058	31,260,203	15,176,000	1,011,000	2,396,160
16	May 27, 2021 18:30	5,058	39,707,803	15,174,000	1,011,000	2,392,064
17	May 27, 2021 18:31	5,059	32,398,205	14,165,000	2,023,000	2,387,968
18	May 27, 2021 18:30	5,059	33,657,982	14,167,000	2,023,000	2,396,160
19	May 27, 2021 18:27	5,064	31,876,461	14,179,000	2,025,000	2,400,256
20	May 27, 2021 18:27	5,068	33,914,528	14,189,000	2,027,000	2,265,088
21	May 27, 2021 18:30	5,069	41,757,011	14,193,000	2,027,000	2,396,160
22	May 27, 2021 18:30	5,069	42,098,814	15,209,000	1,013,000	2,265,088
23	May 27, 2021 18:27	5,073	45,647,617	14,205,000	2,029,000	2,265,088
24	May 27, 2021 18:31	5,074	37,331,412	15,224,000	1,014,000	2,265,088
25	May 27, 2021 18:31	5,079	47,055,695	15,237,000	1,015,000	2,392,064
26	May 27, 2021 18:27	5,094	33,038,519	15,282,000	1,018,000	2,265,088
27	May 27, 2021 18:30	5,095	50,033,042	15,286,000	1,019,000	2,265,088
28	May 27, 2021 18:27	5,220	47,829,380	16,704,049	0	2,289,664
29	May 27, 2021 18:31	5,230	57,366,718	16,735,504	0	2,273,280
30	May 27, 2021 18:27	5,230	43,758,497	16,735,345	0	2,273,280
31	May 27, 2021 18:30	5,235	44,257,133	16,750,982	0	2,277,376
32	May 27, 2021 18:27	5,256	71,498,770	16,820,244	0	2,277,376
33	May 27, 2021 18:30	5,258	75,208,784	16,826,807	0	2,281,472
34	May 27, 2021 18:31	5,266	75,822,590	16,851,858	0	2,277,376
35	May 27, 2021 18:30	5,270	74,604,573	16,864,341	0	2,269,184
36	May 27, 2021 18:31	5,620	85,087,613	17,982,825	0	2,285,568

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