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 17, 2021 09:44

Sergey Stremin

Score: 5,674

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 17, 2021 09:44	5,635	42,413,540	17,030,000	1,001,000	2,371,584
2	May 17, 2021 09:44	5,644	37,747,620	17,058,000	1,003,000	2,379,776
3	May 17, 2021 09:44	5,652	37,007,703	17,081,000	1,004,000	2,277,376
4	May 17, 2021 09:45	5,653	40,498,760	17,085,000	1,005,000	2,281,472
5	May 17, 2021 09:44	5,653	40,542,968	16,080,000	2,010,000	2,277,376
6	May 17, 2021 09:45	5,654	34,215,907	16,084,000	2,010,000	2,277,376
7	May 17, 2021 09:44	5,657	46,625,752	15,085,000	3,017,000	2,375,680
8	May 17, 2021 09:44	5,658	40,128,977	16,093,000	2,011,000	2,371,584
9	May 17, 2021 09:45	5,659	35,220,825	16,096,000	2,012,000	2,277,376
10	May 17, 2021 09:44	5,660	39,605,342	15,093,000	3,018,000	2,367,488
11	May 17, 2021 09:44	5,660	41,366,977	15,094,000	3,018,000	2,375,680
12	May 17, 2021 09:45	5,661	34,985,070	17,110,000	1,006,000	2,445,312
13	May 17, 2021 09:44	5,665	40,009,355	15,106,000	3,021,000	2,486,272
14	May 17, 2021 09:44	5,666	40,920,862	16,116,000	2,014,000	2,281,472
15	May 17, 2021 09:45	5,666	44,753,491	16,117,000	2,014,000	2,367,488
16	May 17, 2021 09:45	5,668	45,209,050	14,107,000	4,030,000	2,277,376
17	May 17, 2021 09:44	5,668	39,555,826	16,122,000	2,015,000	2,281,472
18	May 17, 2021 09:44	5,673	38,269,065	16,136,000	2,017,000	2,469,888
19	May 17, 2021 09:44	5,674	41,812,448	16,141,000	2,017,000	2,371,584
20	May 17, 2021 09:45	5,674	43,082,261	16,139,000	2,017,000	2,371,584
21	May 17, 2021 09:44	5,676	39,377,559	15,135,000	3,027,000	2,371,584
22	May 17, 2021 09:45	5,677	38,806,747	16,148,000	2,018,000	2,375,680
23	May 17, 2021 09:44	5,678	45,979,704	16,151,000	2,018,000	2,379,776
24	May 17, 2021 09:44	5,680	39,850,465	16,157,000	2,019,000	2,277,376
25	May 17, 2021 09:44	5,680	48,103,686	16,156,000	2,019,000	2,277,376
26	May 17, 2021 09:45	5,685	36,934,362	16,170,000	2,021,000	2,371,584
27	May 17, 2021 09:44	5,690	41,503,153	16,186,000	2,023,000	2,375,680
28	May 17, 2021 09:45	5,899	79,019,929	18,875,847	0	2,236,416
29	May 17, 2021 09:45	5,901	87,042,340	18,884,225	0	2,252,800
30	May 17, 2021 09:45	5,931	83,330,913	18,979,222	0	2,240,512
31	May 17, 2021 09:44	5,936	89,252,997	18,993,727	0	2,236,416
32	May 17, 2021 09:44	5,960	59,614,156	19,070,745	0	2,244,608
33	May 17, 2021 09:44	5,962	79,818,535	19,078,380	0	2,236,416
34	May 17, 2021 09:44	5,978	79,611,149	19,129,818	0	2,236,416
35	May 17, 2021 09:44	6,017	76,141,392	19,255,326	0	2,228,224
36	May 17, 2021 09:44	6,148	86,785,686	19,672,451	0	2,224,128

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