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 29, 2021 14:58

Dmitry Dolgopolov

Score: 4,986

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 29, 2021 14:59	4,959	35,114,977	13,887,000	1,983,000	2,535,424
2	May 29, 2021 14:59	4,961	39,457,525	13,892,000	1,984,000	2,273,280
3	May 29, 2021 14:58	4,962	31,191,056	13,894,000	1,984,000	2,445,312
4	May 29, 2021 14:58	4,962	45,834,621	13,894,000	1,984,000	2,445,312
5	May 29, 2021 14:59	4,963	40,600,573	13,895,000	1,985,000	2,273,280
6	May 29, 2021 14:59	4,963	37,020,331	13,895,000	1,985,000	2,535,424
7	May 29, 2021 14:58	4,963	39,883,881	13,898,000	1,985,000	2,273,280
8	May 29, 2021 14:58	4,963	45,630,907	14,890,000	992,000	2,441,216
9	May 29, 2021 14:59	4,963	33,122,786	13,897,000	1,985,000	2,441,216
10	May 29, 2021 14:59	4,965	33,007,030	14,895,000	993,000	2,273,280
11	May 29, 2021 14:59	4,967	41,174,987	13,908,000	1,986,000	2,531,328
12	May 29, 2021 14:59	4,968	44,497,636	13,909,000	1,987,000	2,445,312
13	May 29, 2021 14:59	4,969	35,426,915	13,913,000	1,987,000	2,437,120
14	May 29, 2021 14:59	4,973	32,623,492	13,924,000	1,989,000	2,273,280
15	May 29, 2021 14:59	4,973	32,795,988	13,925,000	1,989,000	2,445,312
16	May 29, 2021 14:58	4,977	35,434,597	13,935,000	1,990,000	2,265,088
17	May 29, 2021 14:59	4,978	43,569,555	13,938,000	1,991,000	2,445,312
18	May 29, 2021 14:58	4,983	43,237,155	13,951,000	1,993,000	2,273,280
19	May 29, 2021 14:59	4,986	34,322,998	13,960,000	1,994,000	2,445,312
20	May 29, 2021 14:59	4,986	33,234,919	13,961,000	1,994,000	2,273,280
21	May 29, 2021 14:59	4,989	42,685,273	13,970,000	1,995,000	2,535,424
22	May 29, 2021 14:59	4,993	37,968,731	13,980,000	1,997,000	2,445,312
23	May 29, 2021 14:59	4,994	33,681,973	13,983,000	1,997,000	2,535,424
24	May 29, 2021 14:58	4,998	34,197,529	13,994,000	1,999,000	2,273,280
25	May 29, 2021 14:58	5,004	32,234,132	14,011,000	2,001,000	2,535,424
26	May 29, 2021 14:58	5,018	43,445,448	14,052,000	2,007,000	2,445,312
27	May 29, 2021 14:59	5,039	35,644,948	14,109,000	2,015,000	2,437,120
28	May 29, 2021 14:59	5,200	91,675,338	16,639,850	0	2,203,648
29	May 29, 2021 14:59	5,201	87,411,716	16,642,851	0	2,199,552
30	May 29, 2021 14:59	5,202	81,303,431	16,645,367	0	2,195,456
31	May 29, 2021 14:58	5,207	81,523,300	16,662,451	0	2,203,648
32	May 29, 2021 14:58	5,209	100,954,707	16,668,224	0	2,191,360
33	May 29, 2021 14:59	5,225	77,326,841	16,719,348	0	2,203,648
34	May 29, 2021 14:58	5,231	56,979,843	16,740,032	0	2,203,648
35	May 29, 2021 14:59	5,242	75,805,890	16,773,967	0	2,260,992
36	May 29, 2021 14:59	5,245	81,929,975	16,783,540	0	2,199,552

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