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 1, 2022 07:36

Keichi Takahashi

Score: 5,274

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 1, 2022 07:36	5,212	45,760,015	15,637,000	1,042,000	2,265,088
2	May 30, 2022 13:52	5,216	32,220,069	15,647,000	1,043,000	2,265,088
3	May 30, 2022 13:37	5,225	32,810,855	16,721,000	0	2,387,968
4	May 30, 2022 13:37	5,228	39,613,831	15,685,000	1,045,000	2,265,088
5	May 30, 2022 13:37	5,229	45,981,995	15,689,000	1,045,000	2,387,968
6	May 30, 2022 13:52	5,229	41,364,585	16,733,000	0	2,265,088
7	May 30, 2022 13:37	5,230	39,622,163	15,690,000	1,046,000	2,383,872
8	Jun 1, 2022 07:36	5,233	44,846,317	16,746,000	0	2,379,776
9	May 30, 2022 13:52	5,261	42,900,113	15,846,000	990,000	2,265,088
10	May 30, 2022 13:52	5,267	46,421,451	14,871,000	1,982,000	2,392,064
11	May 30, 2022 13:37	5,269	42,312,054	14,879,000	1,983,000	2,265,088
12	Jun 1, 2022 07:36	5,269	48,924,979	15,871,000	991,000	2,265,088
13	May 30, 2022 13:52	5,271	41,358,203	15,875,000	992,000	2,265,088
14	Jun 1, 2022 07:36	5,272	41,382,161	14,886,000	1,984,000	2,265,088
15	May 30, 2022 13:52	5,272	33,912,861	16,871,000	0	2,265,088
16	Jun 1, 2022 07:36	5,272	34,087,579	15,879,000	992,000	2,387,968
17	May 30, 2022 13:37	5,272	33,960,221	15,879,000	992,000	2,265,088
18	Jun 1, 2022 07:36	5,273	43,164,829	16,872,000	0	2,392,064
19	Jun 1, 2022 07:36	5,274	34,167,296	16,878,000	0	2,392,064
20	May 30, 2022 13:37	5,275	35,305,014	15,887,000	992,000	2,510,848
21	May 30, 2022 13:52	5,276	36,177,982	14,897,000	1,986,000	2,383,872
22	May 30, 2022 13:52	5,276	40,041,055	16,883,000	0	2,523,136
23	May 30, 2022 13:37	5,278	43,030,414	15,896,000	993,000	2,265,088
24	May 30, 2022 13:37	5,278	47,827,760	15,895,000	993,000	2,383,872
25	Jun 1, 2022 07:36	5,278	43,666,234	15,896,000	993,000	2,392,064
26	Jun 1, 2022 07:36	5,278	47,361,898	16,888,000	0	2,387,968
27	May 30, 2022 13:52	5,281	46,027,796	15,904,000	994,000	2,527,232
28	May 30, 2022 13:52	5,433	88,316,663	17,387,158	0	2,244,608
29	May 30, 2022 13:52	5,440	75,081,580	17,406,568	0	2,281,472
30	Jun 1, 2022 07:36	5,446	95,554,701	17,427,392	0	2,285,568
31	May 30, 2022 13:37	5,446	79,357,485	17,427,917	0	2,277,376
32	May 30, 2022 13:37	5,451	64,939,728	17,444,170	0	2,281,472
33	Jun 1, 2022 07:36	5,454	66,983,064	17,453,291	0	2,273,280
34	Jun 1, 2022 07:36	5,462	99,161,505	17,479,868	0	2,277,376
35	May 30, 2022 13:52	5,465	79,673,439	17,488,834	0	2,273,280
36	May 30, 2022 13:37	5,466	86,137,559	17,489,816	0	2,277,376

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