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 listJan 2, 2023 17:10

Jack Frigaard

Score: 4,852

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 2, 2023 17:12	4,783	38,469,748	13,265,000	2,040,000	2,285,568
2	Jan 2, 2023 17:12	4,799	32,759,837	13,310,000	2,047,000	2,269,184
3	Jan 2, 2023 17:12	4,816	32,008,327	13,356,000	2,054,000	2,371,584
4	Jan 2, 2023 17:11	4,820	30,797,803	14,397,000	1,028,000	2,523,136
5	Jan 2, 2023 17:11	4,823	33,460,785	14,406,000	1,029,000	2,285,568
6	Jan 2, 2023 17:12	4,823	36,384,597	14,406,000	1,029,000	2,269,184
7	Jan 2, 2023 17:10	4,824	32,752,268	14,408,000	1,029,000	2,285,568
8	Jan 2, 2023 17:10	4,826	37,737,009	14,413,000	1,029,000	2,285,568
9	Jan 2, 2023 17:10	4,827	32,745,996	15,446,000	0	2,285,568
10	Jan 2, 2023 17:11	4,828	41,796,055	14,421,000	1,030,000	2,285,568
11	Jan 2, 2023 17:11	4,831	39,400,426	14,428,000	1,030,000	2,277,376
12	Jan 2, 2023 17:11	4,835	31,451,826	15,473,000	0	2,277,376
13	Jan 2, 2023 17:10	4,836	39,311,663	14,445,000	1,031,000	2,269,184
14	Jan 2, 2023 17:11	4,837	32,380,751	14,447,000	1,031,000	2,285,568
15	Jan 2, 2023 17:12	4,842	31,299,944	14,461,000	1,032,000	2,527,232
16	Jan 2, 2023 17:10	4,846	34,665,897	14,473,000	1,033,000	2,285,568
17	Jan 2, 2023 17:10	4,850	29,966,817	14,485,000	1,034,000	2,277,376
18	Jan 2, 2023 17:11	4,851	33,908,956	13,454,000	2,069,000	2,285,568
19	Jan 2, 2023 17:12	4,852	33,430,326	14,490,000	1,035,000	2,269,184
20	Jan 2, 2023 17:11	4,852	32,859,309	14,490,000	1,035,000	2,285,568
21	Jan 2, 2023 17:10	4,853	34,556,436	14,494,000	1,035,000	2,277,376
22	Jan 2, 2023 17:12	4,858	37,546,312	14,511,000	1,036,000	2,367,488
23	Jan 2, 2023 17:10	4,864	37,268,710	14,528,000	1,037,000	2,285,568
24	Jan 2, 2023 17:12	4,869	36,949,318	14,543,000	1,038,000	2,285,568
25	Jan 2, 2023 17:12	4,877	40,469,007	14,565,000	1,040,000	2,285,568
26	Jan 2, 2023 17:11	4,880	37,119,386	14,576,000	1,041,000	2,285,568
27	Jan 2, 2023 17:10	4,901	33,495,848	14,638,000	1,045,000	2,527,232
28	Jan 2, 2023 17:11	5,061	88,575,686	16,194,790	0	2,306,048
29	Jan 2, 2023 17:12	5,062	83,921,626	16,196,900	0	2,306,048
30	Jan 2, 2023 17:12	5,077	88,074,761	16,247,450	0	2,293,760
31	Jan 2, 2023 17:11	5,080	104,533,615	16,255,604	0	2,297,856
32	Jan 2, 2023 17:11	5,089	84,835,267	16,283,973	0	2,293,760
33	Jan 2, 2023 17:10	5,108	76,561,293	16,346,580	0	2,297,856
34	Jan 2, 2023 17:12	5,113	80,935,121	16,362,673	0	2,297,856
35	Jan 2, 2023 17:10	5,126	85,986,485	16,404,639	0	2,297,856
36	Jan 2, 2023 17:10	5,141	75,542,265	16,451,587	0	2,301,952

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