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 28, 2021 07:07

Yuriy Lyfenko

Score: 5,039

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 28, 2021 07:07	5,015	42,335,658	15,046,000	1,003,000	2,265,088
2	May 28, 2021 07:07	5,016	35,229,961	14,045,000	2,006,000	2,396,160
3	May 28, 2021 07:07	5,017	49,213,571	14,048,000	2,006,000	2,265,088
4	May 28, 2021 07:07	5,017	41,315,141	14,047,000	2,006,000	2,400,256
5	May 28, 2021 07:07	5,018	32,720,389	14,049,000	2,007,000	2,387,968
6	May 28, 2021 07:07	5,019	35,627,406	14,055,000	2,007,000	2,527,232
7	May 28, 2021 07:07	5,021	44,895,107	14,060,000	2,008,000	2,265,088
8	May 28, 2021 07:07	5,023	33,519,711	14,066,000	2,009,000	2,387,968
9	May 28, 2021 07:07	5,025	43,891,392	14,070,000	2,010,000	2,265,088
10	May 28, 2021 07:07	5,025	45,726,378	15,076,000	1,005,000	2,265,088
11	May 28, 2021 07:07	5,026	42,072,361	14,072,000	2,010,000	2,265,088
12	May 28, 2021 07:07	5,026	38,259,893	15,078,000	1,005,000	2,265,088
13	May 28, 2021 07:07	5,027	40,870,204	14,076,000	2,010,000	2,265,088
14	May 28, 2021 07:07	5,028	33,504,552	15,083,000	1,005,000	2,383,872
15	May 28, 2021 07:07	5,029	44,403,330	14,081,000	2,011,000	2,265,088
16	May 28, 2021 07:07	5,032	43,064,330	14,090,000	2,012,000	2,265,088
17	May 28, 2021 07:07	5,032	40,875,935	15,095,000	1,006,000	2,265,088
18	May 28, 2021 07:07	5,033	32,790,602	14,092,000	2,013,000	2,265,088
19	May 28, 2021 07:07	5,039	47,459,649	14,109,000	2,015,000	2,265,088
20	May 28, 2021 07:07	5,040	45,093,754	14,112,000	2,016,000	2,400,256
21	May 28, 2021 07:07	5,046	32,850,775	15,139,000	1,009,000	2,269,184
22	May 28, 2021 07:07	5,051	34,332,379	15,152,000	1,010,000	2,265,088
23	May 28, 2021 07:07	5,053	40,148,620	15,160,000	1,010,000	2,392,064
24	May 28, 2021 07:07	5,054	37,078,095	15,163,000	1,010,000	2,265,088
25	May 28, 2021 07:07	5,056	42,629,985	14,157,000	2,022,000	2,265,088
26	May 28, 2021 07:07	5,059	36,984,819	15,179,000	1,011,000	2,392,064
27	May 28, 2021 07:07	5,073	33,760,414	14,204,000	2,029,000	2,527,232
28	May 28, 2021 07:07	5,214	47,972,044	16,686,255	0	2,273,280
29	May 28, 2021 07:07	5,216	71,593,369	16,690,025	0	2,269,184
30	May 28, 2021 07:07	5,232	62,119,750	16,742,734	0	2,277,376
31	May 28, 2021 07:07	5,234	93,815,118	16,748,491	0	2,281,472
32	May 28, 2021 07:07	5,238	81,300,888	16,761,851	0	2,269,184
33	May 28, 2021 07:07	5,256	79,819,015	16,819,517	0	2,285,568
34	May 28, 2021 07:07	5,259	52,228,643	16,827,401	0	2,285,568
35	May 28, 2021 07:07	5,273	48,019,164	16,873,146	0	2,277,376
36	May 28, 2021 07:07	5,323	47,721,193	17,032,052	0	2,277,376

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