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 19, 2021 23:24

alex3d

Score: 4,762

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 19, 2021 23:24	4,723	31,818,088	13,099,000	2,015,000	2,273,280
2	May 19, 2021 23:24	4,728	42,569,900	13,111,000	2,017,000	2,445,312
3	May 19, 2021 23:24	4,731	31,217,234	13,120,000	2,018,000	2,535,424
4	May 19, 2021 23:24	4,734	31,056,357	13,129,000	2,019,000	2,449,408
5	May 19, 2021 23:24	4,734	33,262,526	13,130,000	2,020,000	2,535,424
6	May 19, 2021 23:24	4,737	40,610,549	13,137,000	2,021,000	2,445,312
7	May 19, 2021 23:24	4,738	32,459,358	13,141,000	2,021,000	2,445,312
8	May 19, 2021 23:24	4,739	36,192,161	13,143,000	2,022,000	2,535,424
9	May 19, 2021 23:24	4,740	40,663,736	13,147,000	2,022,000	2,273,280
10	May 19, 2021 23:24	4,742	31,726,570	13,152,000	2,023,000	2,441,216
11	May 19, 2021 23:24	4,742	32,512,407	13,150,000	2,023,000	2,437,120
12	May 19, 2021 23:24	4,744	34,288,566	13,156,000	2,024,000	2,535,424
13	May 19, 2021 23:24	4,745	33,254,368	13,160,000	2,024,000	2,531,328
14	May 19, 2021 23:24	4,746	37,032,869	13,162,000	2,024,000	2,437,120
15	May 19, 2021 23:24	4,746	27,195,320	13,163,000	2,025,000	2,273,280
16	May 19, 2021 23:24	4,748	33,903,619	13,167,000	2,025,000	2,273,280
17	May 19, 2021 23:24	4,749	36,861,956	13,172,000	2,026,000	2,535,424
18	May 19, 2021 23:24	4,749	29,786,324	13,171,000	2,026,000	2,449,408
19	May 19, 2021 23:24	4,751	35,411,639	13,175,000	2,027,000	2,531,328
20	May 19, 2021 23:24	4,751	36,685,898	13,176,000	2,027,000	2,437,120
21	May 19, 2021 23:24	4,757	37,546,018	13,193,000	2,029,000	2,535,424
22	May 19, 2021 23:24	4,761	34,697,621	13,205,000	2,031,000	2,449,408
23	May 19, 2021 23:24	4,762	31,241,147	14,222,000	1,015,000	2,445,312
24	May 19, 2021 23:24	4,763	31,091,077	14,226,000	1,016,000	2,535,424
25	May 19, 2021 23:24	4,763	25,953,050	13,211,000	2,032,000	2,273,280
26	May 19, 2021 23:24	4,766	31,817,989	13,217,000	2,033,000	2,441,216
27	May 19, 2021 23:24	4,770	30,294,211	13,230,000	2,035,000	2,535,424
28	May 19, 2021 23:24	4,970	55,737,855	15,904,356	0	2,199,552
29	May 19, 2021 23:24	4,971	78,234,268	15,906,456	0	2,195,456
30	May 19, 2021 23:24	4,992	94,761,649	15,974,418	0	2,207,744
31	May 19, 2021 23:24	4,995	54,512,751	15,985,235	0	2,211,840
32	May 19, 2021 23:24	4,995	70,930,592	15,984,369	0	2,199,552
33	May 19, 2021 23:24	4,996	77,130,360	15,987,440	0	2,199,552
34	May 19, 2021 23:24	4,999	71,950,760	15,997,987	0	2,203,648
35	May 19, 2021 23:24	5,002	81,456,274	16,006,013	0	2,203,648
36	May 19, 2021 23:24	5,006	84,234,889	16,018,678	0	2,199,552
37	May 19, 2021 23:24	5,009	77,740,053	16,027,695	0	2,195,456
38	May 19, 2021 23:24	5,010	69,242,581	16,033,558	0	2,203,648
39	May 19, 2021 23:24	5,012	76,330,026	16,038,807	0	2,195,456
40	May 19, 2021 23:24	5,014	81,037,252	16,044,927	0	2,199,552
41	May 19, 2021 23:24	5,017	76,014,785	16,054,242	0	2,199,552
42	May 19, 2021 23:24	5,025	85,139,390	16,081,168	0	2,203,648
43	May 19, 2021 23:24	5,042	91,295,757	16,135,613	0	2,256,896
44	May 19, 2021 23:24	5,065	83,930,328	16,207,416	0	2,195,456
45	May 19, 2021 23:24	5,067	89,436,956	16,213,179	0	2,203,648

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