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 29, 2021 23:04

Andrey Tsvetkov

Score: 5,703

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 29, 2021 23:01	5,648	44,103,190	15,063,000	3,012,000	2,531,328
2	Jun 29, 2021 23:02	5,654	47,103,800	15,079,000	3,015,000	2,330,624
3	Jun 29, 2021 23:02	5,657	48,895,738	16,091,000	2,011,000	2,523,136
4	Jun 29, 2021 23:01	5,658	49,068,922	16,093,000	2,011,000	2,514,944
5	Jun 29, 2021 23:04	5,658	46,452,364	16,093,000	2,011,000	2,334,720
6	Jun 29, 2021 23:01	5,663	46,902,342	16,109,000	2,013,000	2,326,528
7	Jun 29, 2021 23:01	5,665	44,181,557	15,107,000	3,021,000	2,531,328
8	Jun 29, 2021 23:04	5,665	42,222,225	15,106,000	3,021,000	2,519,040
9	Jun 29, 2021 23:01	5,666	43,141,133	15,109,000	3,021,000	2,334,720
10	Jun 29, 2021 23:02	5,668	43,244,010	16,121,000	2,015,000	2,531,328
11	Jun 29, 2021 23:04	5,674	37,277,184	15,131,000	3,026,000	2,531,328
12	Jun 29, 2021 23:01	5,680	49,807,696	16,156,000	2,019,000	2,531,328
13	Jun 29, 2021 23:02	5,683	35,674,863	15,154,000	3,030,000	2,330,624
14	Jun 29, 2021 23:04	5,683	50,314,211	16,165,000	2,020,000	2,531,328
15	Jun 29, 2021 23:02	5,684	44,188,912	15,158,000	3,031,000	2,334,720
16	Jun 29, 2021 23:04	5,692	42,360,550	15,179,000	3,035,000	2,338,816
17	Jun 29, 2021 23:04	5,702	38,770,777	16,219,000	2,027,000	2,334,720
18	Jun 29, 2021 23:04	5,702	40,138,826	17,233,000	1,013,000	2,531,328
19	Jun 29, 2021 23:02	5,703	49,278,144	15,209,000	3,041,000	2,527,232
20	Jun 29, 2021 23:02	5,704	44,133,192	16,224,000	2,028,000	2,527,232
21	Jun 29, 2021 23:01	5,704	42,269,055	14,196,000	4,056,000	2,363,392
22	Jun 29, 2021 23:02	5,709	34,492,937	16,239,000	2,029,000	2,334,720
23	Jun 29, 2021 23:04	5,713	37,599,734	16,252,000	2,031,000	2,523,136
24	Jun 29, 2021 23:04	5,713	83,576,458	18,282,456	0	2,224,128
25	Jun 29, 2021 23:01	5,713	43,697,452	15,234,000	3,046,000	2,531,328
26	Jun 29, 2021 23:02	5,723	34,576,917	15,263,000	3,052,000	2,334,720
27	Jun 29, 2021 23:02	5,725	95,131,390	18,318,400	0	2,228,224
28	Jun 29, 2021 23:04	5,735	83,398,459	18,352,763	0	2,248,704
29	Jun 29, 2021 23:04	5,738	43,216,352	15,302,000	3,060,000	2,310,144
30	Jun 29, 2021 23:01	5,749	36,545,782	15,331,000	3,066,000	2,531,328
31	Jun 29, 2021 23:01	5,763	80,730,791	18,442,753	0	2,240,512
32	Jun 29, 2021 23:01	5,763	90,286,940	18,440,071	0	2,232,320
33	Jun 29, 2021 23:02	5,771	78,630,006	18,465,828	0	2,224,128
34	Jun 29, 2021 23:01	5,773	86,437,683	18,472,452	0	2,228,224
35	Jun 29, 2021 23:02	5,836	78,664,373	18,674,061	0	2,232,320
36	Jun 29, 2021 23:04	5,877	85,199,638	18,807,276	0	2,232,320

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