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 listAug 26, 2022 22:40

Franek Korta

Score: 4,865

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	Aug 26, 2022 22:53	4,807	36,968,561	15,381,000	0	2,428,928
2	Aug 26, 2022 22:53	4,815	36,114,483	15,408,000	0	2,531,328
3	Aug 26, 2022 22:53	4,816	32,889,810	14,384,000	1,027,000	2,531,328
4	Aug 26, 2022 22:53	4,820	28,580,454	13,368,000	2,056,000	2,269,184
5	Aug 26, 2022 22:39	4,820	32,822,975	15,425,000	0	2,269,184
6	Aug 26, 2022 22:39	4,823	37,975,365	14,405,000	1,028,000	2,433,024
7	Aug 26, 2022 22:39	4,829	32,660,052	15,453,000	0	2,269,184
8	Aug 26, 2022 22:39	4,830	43,453,236	15,457,000	0	2,433,024
9	Aug 26, 2022 22:39	4,832	36,906,106	14,431,000	1,030,000	2,428,928
10	Aug 26, 2022 22:39	4,833	36,248,142	15,464,000	0	2,428,928
11	Aug 26, 2022 22:53	4,834	30,576,269	14,437,000	1,031,000	2,428,928
12	Aug 26, 2022 22:53	4,834	34,394,927	14,439,000	1,031,000	2,428,928
13	Aug 26, 2022 22:53	4,836	40,151,599	15,474,000	0	2,433,024
14	Aug 26, 2022 22:39	4,836	35,437,514	15,475,000	0	2,424,832
15	Aug 26, 2022 22:39	4,838	41,329,975	14,449,000	1,032,000	2,428,928
16	Aug 26, 2022 22:39	4,839	35,295,972	15,484,000	0	2,416,640
17	Aug 26, 2022 22:53	4,839	36,701,337	13,421,000	2,064,000	2,428,928
18	Aug 26, 2022 22:53	4,841	34,213,168	12,394,000	3,098,000	2,531,328
19	Aug 26, 2022 22:39	4,846	30,895,002	14,474,000	1,033,000	2,531,328
20	Aug 26, 2022 22:39	4,852	31,778,060	14,491,000	1,035,000	2,424,832
21	Aug 26, 2022 22:39	4,855	34,041,515	15,537,000	0	2,437,120
22	Aug 26, 2022 22:39	4,857	37,379,153	14,505,000	1,036,000	2,531,328
23	Aug 26, 2022 22:39	4,859	31,408,972	13,476,000	2,073,000	2,265,088
24	Aug 26, 2022 22:40	4,860	42,821,399	15,553,000	0	2,428,928
25	Aug 26, 2022 22:40	4,865	29,357,308	15,567,000	0	2,441,216
26	Aug 26, 2022 22:39	4,866	36,289,303	12,458,000	3,114,000	2,428,928
27	Aug 26, 2022 22:40	4,868	36,792,459	14,539,000	1,038,000	2,424,832
28	Aug 26, 2022 22:39	4,868	40,947,214	14,539,000	1,038,000	2,531,328
29	Aug 26, 2022 22:39	4,870	41,120,595	14,611,000	974,000	2,428,928
30	Aug 26, 2022 22:39	4,871	29,938,046	15,587,000	0	2,531,328
31	Aug 26, 2022 22:40	4,877	43,379,142	15,607,000	0	2,433,024
32	Aug 26, 2022 22:40	4,883	30,092,856	13,541,000	2,083,000	2,531,328
33	Aug 26, 2022 22:40	4,884	38,990,793	15,630,000	0	2,531,328
34	Aug 26, 2022 22:40	4,890	41,891,000	15,647,000	0	2,531,328
35	Aug 26, 2022 22:40	4,893	42,176,498	15,657,000	0	2,437,120
36	Aug 26, 2022 22:40	4,893	42,947,885	15,657,000	0	2,269,184
37	Aug 26, 2022 22:53	5,031	92,833,821	16,099,547	0	2,195,456
38	Aug 26, 2022 22:39	5,041	86,418,789	16,130,017	0	2,191,360
39	Aug 26, 2022 22:39	5,053	73,037,648	16,169,998	0	2,187,264
40	Aug 26, 2022 22:53	5,060	83,699,374	16,190,988	0	2,195,456
41	Aug 26, 2022 22:39	5,067	80,376,161	16,215,459	0	2,195,456
42	Aug 26, 2022 22:39	5,069	72,132,428	16,221,920	0	2,187,264
43	Aug 26, 2022 22:53	5,070	94,634,730	16,223,587	0	2,203,648
44	Aug 26, 2022 22:40	5,082	106,082,664	16,261,305	0	2,195,456
45	Aug 26, 2022 22:39	5,097	83,136,743	16,309,091	0	2,191,360
46	Aug 26, 2022 22:39	5,103	89,914,880	16,329,006	0	2,191,360
47	Aug 26, 2022 22:40	5,107	83,827,075	16,342,600	0	2,252,800
48	Aug 26, 2022 22:40	5,128	85,319,736	16,408,950	0	2,199,552

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