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 17, 2021 15:13

Yuriy Lyfenko

Score: 5,386

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 17, 2021 15:13	5,340	4,132,602,139	16,084,000	1,005,000	2,527,232
2	May 17, 2021 15:13	5,349	799,003,306	17,118,000	0	2,265,088
3	May 17, 2021 15:16	5,350	1,312,914,807	15,218,000	1,902,000	2,265,088
4	May 17, 2021 15:16	5,353	1,669,588,445	16,123,000	1,007,000	2,260,992
5	May 17, 2021 15:13	5,359	269,481,359	14,123,000	3,026,000	2,265,088
6	May 17, 2021 15:13	5,360	733,567,040	14,293,000	2,858,000	2,269,184
7	May 17, 2021 15:16	5,363	408,268,585	16,151,000	1,009,000	2,265,088
8	May 17, 2021 15:13	5,364	78,416,721	16,156,000	1,009,000	2,392,064
9	May 17, 2021 15:16	5,372	2,722,133,344	16,236,000	955,000	2,527,232
10	May 17, 2021 15:13	5,373	2,805,781,667	16,182,000	1,011,000	2,265,088
11	May 17, 2021 15:13	5,375	4,482,280,725	15,289,000	1,911,000	2,265,088
12	May 17, 2021 15:13	5,375	106,342,715	16,245,000	955,000	2,392,064
13	May 17, 2021 15:13	5,378	1,406,975,263	17,211,000	0	2,265,088
14	May 17, 2021 15:16	5,380	1,175,632,728	16,204,000	1,012,000	2,260,992
15	May 17, 2021 15:13	5,380	381,893,014	15,191,000	2,025,000	2,387,968
16	May 17, 2021 15:13	5,383	3,583,769,018	16,213,000	1,013,000	2,527,232
17	May 17, 2021 15:13	5,384	4,916,749,265	16,216,000	1,013,000	2,527,232
18	May 17, 2021 15:13	5,385	1,462,145,343	16,276,000	957,000	2,265,088
19	May 17, 2021 15:13	5,386	2,705,232,421	16,278,000	957,000	2,265,088
20	May 17, 2021 15:16	5,391	3,179,556,606	16,238,000	1,014,000	2,265,088
21	May 17, 2021 15:13	5,393	4,389,939,064	17,258,000	0	2,527,232
22	May 17, 2021 15:13	5,396	4,495,680,493	16,309,000	959,000	2,523,136
23	May 17, 2021 15:13	5,398	2,403,425,379	17,275,000	0	2,265,088
24	May 17, 2021 15:16	5,403	1,187,048,047	16,329,000	960,000	2,527,232
25	May 17, 2021 15:16	5,406	2,110,733,624	17,300,000	0	2,265,088
26	May 17, 2021 15:13	5,409	3,006,441,065	16,348,000	961,000	2,265,088
27	May 17, 2021 15:16	5,415	4,779,756,724	16,309,000	1,019,000	2,527,232
28	May 17, 2021 15:13	5,565	2,438,407,381	17,809,471	0	2,277,376
29	May 17, 2021 15:13	5,569	4,415,595,731	17,820,248	0	2,273,280
30	May 17, 2021 15:16	5,572	4,571,966,391	17,829,709	0	2,273,280
31	May 17, 2021 15:16	5,576	1,149,202,207	17,843,907	0	2,281,472
32	May 17, 2021 15:13	5,577	4,782,595,203	17,846,009	0	2,277,376
33	May 17, 2021 15:13	5,578	2,392,341,817	17,850,119	0	2,277,376
34	May 17, 2021 15:13	5,585	2,031,807,798	17,873,378	0	2,281,472
35	May 17, 2021 15:16	5,587	4,148,084,957	17,878,179	0	2,277,376
36	May 17, 2021 15:13	5,598	860,653,766	17,912,735	0	2,277,376

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