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 listDec 19, 2024 00:47

Joad Nacer

Score: 4,340

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	Nov 30, 2024 00:31	4,328	30,818,888	12,859,000	989,000	2,510,848
2	Nov 30, 2024 00:31	4,328	30,256,686	12,861,000	989,000	2,433,024
3	Dec 12, 2024 22:27	4,333	28,772,018	13,866,000	0	2,531,328
4	Nov 30, 2024 00:31	4,333	33,718,700	12,874,000	990,000	2,531,328
5	Dec 25, 2024 03:32	4,334	30,873,597	12,880,000	990,000	2,531,328
6	Nov 29, 2024 19:28	4,334	26,784,729	13,869,000	0	2,510,848
7	Nov 30, 2024 01:50	4,334	30,682,509	12,878,000	990,000	2,531,328
8	Dec 25, 2024 03:32	4,334	30,150,973	13,868,000	0	2,428,928
9	Nov 29, 2024 19:28	4,335	27,499,794	12,881,000	990,000	2,514,944
10	Dec 12, 2024 22:27	4,336	31,319,820	12,885,000	991,000	2,269,184
11	Dec 12, 2024 22:27	4,336	42,111,047	12,885,000	991,000	2,531,328
12	Nov 30, 2024 00:31	4,337	27,348,840	12,888,000	991,000	2,531,328
13	Nov 30, 2024 00:31	4,337	29,949,675	13,879,000	0	2,437,120
14	Nov 29, 2024 19:28	4,337	27,476,909	12,887,000	991,000	2,531,328
15	Nov 29, 2024 19:28	4,337	40,654,703	12,886,000	991,000	2,531,328
16	Nov 30, 2024 01:50	4,337	32,644,848	12,888,000	991,000	2,531,328
17	Nov 29, 2024 19:27	4,338	32,612,586	13,883,000	0	2,269,184
18	Dec 12, 2024 22:26	4,338	31,156,802	12,890,000	991,000	2,433,024
19	Nov 30, 2024 00:31	4,338	33,248,123	13,881,000	0	2,428,928
20	Nov 29, 2024 19:28	4,338	26,658,601	12,889,000	991,000	2,531,328
21	Nov 29, 2024 19:28	4,338	26,790,344	12,891,000	991,000	2,531,328
22	Nov 29, 2024 19:28	4,338	38,079,397	12,889,000	991,000	2,433,024
23	Dec 12, 2024 22:27	4,339	27,827,045	12,895,000	991,000	2,433,024
24	Dec 14, 2024 15:42	4,339	34,460,032	11,902,000	1,983,000	2,428,928
25	Nov 30, 2024 01:50	4,340	31,018,172	12,896,000	992,000	2,433,024
26	Nov 30, 2024 00:31	4,341	30,195,851	12,898,000	992,000	2,428,928
27	Nov 30, 2024 00:31	4,341	29,621,789	12,899,000	992,000	2,531,328
28	Nov 29, 2024 19:28	4,341	29,464,048	12,899,000	992,000	2,433,024
29	Nov 29, 2024 19:28	4,341	30,890,027	12,898,000	992,000	2,428,928
30	Dec 25, 2024 03:32	4,341	38,280,506	12,900,000	992,000	2,531,328
31	Nov 30, 2024 00:31	4,342	30,203,338	13,894,000	0	2,428,928
32	Nov 29, 2024 19:27	4,342	32,450,835	12,902,000	992,000	2,428,928
33	Nov 30, 2024 00:31	4,342	35,954,838	12,901,000	992,000	2,531,328
34	Dec 12, 2024 22:27	4,343	39,208,195	12,904,000	992,000	2,269,184
35	Dec 12, 2024 22:26	4,344	27,630,590	11,915,000	1,985,000	2,269,184
36	Nov 29, 2024 19:28	4,345	33,475,363	11,918,000	1,986,000	2,428,928
37	Nov 30, 2024 00:31	4,346	32,637,243	12,913,000	993,000	2,531,328
38	Dec 14, 2024 15:42	4,346	29,754,392	12,915,000	993,000	2,424,832
39	Nov 29, 2024 19:28	4,347	31,393,122	12,916,000	993,000	2,437,120
40	Nov 30, 2024 00:31	4,349	29,430,731	12,922,000	994,000	2,531,328
41	Dec 12, 2024 22:27	4,358	30,919,934	12,950,000	996,000	2,531,328
42	Dec 14, 2024 15:42	4,358	29,584,585	12,948,000	996,000	2,433,024
43	Dec 12, 2024 22:26	4,360	34,702,324	12,956,000	996,000	2,433,024
44	Nov 29, 2024 19:27	4,366	28,058,286	11,976,000	1,996,000	2,433,024
45	Nov 29, 2024 19:28	4,374	35,322,839	12,998,000	999,000	2,428,928
46	Dec 19, 2024 00:47	5,076	38,117,055	14,213,000	2,030,000	2,433,024
47	Dec 19, 2024 00:47	5,112	37,868,390	15,337,000	1,022,000	2,437,120
48	Dec 19, 2024 00:47	5,217	41,777,188	15,651,000	1,043,000	2,437,120

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