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 listJun 21, 2021 11:19

Andrey Tsvetkov

Score: 5,729

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 21, 2021 11:20	5,680	40,941,503	15,147,000	3,029,000	2,519,040
2	Jun 21, 2021 11:20	5,689	47,128,400	15,171,000	3,034,000	2,531,328
3	Jun 21, 2021 11:20	5,697	41,523,132	16,205,000	2,025,000	2,527,232
4	Jun 21, 2021 11:19	5,697	38,908,668	15,193,000	3,038,000	2,527,232
5	Jun 21, 2021 11:19	5,697	32,701,394	16,204,000	2,025,000	2,334,720
6	Jun 21, 2021 11:19	5,699	44,189,843	16,211,000	2,026,000	2,527,232
7	Jun 21, 2021 11:20	5,700	45,878,279	16,214,000	2,026,000	2,334,720
8	Jun 21, 2021 11:19	5,700	36,662,610	16,213,000	2,026,000	2,531,328
9	Jun 21, 2021 11:20	5,704	45,873,358	16,225,000	2,028,000	2,527,232
10	Jun 21, 2021 11:19	5,705	38,447,818	16,228,000	2,028,000	2,519,040
11	Jun 21, 2021 11:19	5,708	36,668,950	15,223,000	3,044,000	2,523,136
12	Jun 21, 2021 11:20	5,708	43,705,236	16,238,000	2,029,000	2,334,720
13	Jun 21, 2021 11:19	5,710	35,875,972	16,241,000	2,030,000	2,334,720
14	Jun 21, 2021 11:20	5,711	31,993,292	15,230,000	3,046,000	2,330,624
15	Jun 21, 2021 11:19	5,712	40,671,947	15,231,000	3,046,000	2,527,232
16	Jun 21, 2021 11:20	5,712	43,167,542	15,233,000	3,046,000	2,334,720
17	Jun 21, 2021 11:20	5,721	39,859,724	15,255,000	3,051,000	2,326,528
18	Jun 21, 2021 11:20	5,722	45,087,558	16,276,000	2,034,000	2,519,040
19	Jun 21, 2021 11:19	5,722	43,272,874	16,275,000	2,034,000	2,326,528
20	Jun 21, 2021 11:19	5,723	42,200,597	15,260,000	3,052,000	2,523,136
21	Jun 21, 2021 11:19	5,724	44,205,970	16,282,000	2,035,000	2,535,424
22	Jun 21, 2021 11:19	5,725	43,469,792	15,266,000	3,053,000	2,523,136
23	Jun 21, 2021 11:19	5,729	39,230,999	15,279,000	3,055,000	2,334,720
24	Jun 21, 2021 11:20	5,729	33,551,517	16,296,000	2,037,000	2,334,720
25	Jun 21, 2021 11:19	5,729	40,830,027	17,316,000	1,018,000	2,334,720
26	Jun 21, 2021 11:19	5,731	42,050,896	15,282,000	3,056,000	2,514,944
27	Jun 21, 2021 11:20	5,733	40,737,637	16,306,000	2,038,000	2,334,720
28	Jun 21, 2021 11:19	5,738	45,874,169	16,320,000	2,040,000	2,519,040
29	Jun 21, 2021 11:20	5,738	40,918,595	15,302,000	3,060,000	2,334,720
30	Jun 21, 2021 11:20	5,743	41,997,787	15,316,000	3,063,000	2,531,328
31	Jun 21, 2021 11:20	5,748	37,482,633	16,349,000	2,043,000	2,334,720
32	Jun 21, 2021 11:19	5,752	41,198,621	17,384,000	1,022,000	2,334,720
33	Jun 21, 2021 11:19	5,753	57,878,845	18,408,899	0	2,228,224
34	Jun 21, 2021 11:20	5,757	37,966,150	16,376,000	2,047,000	2,334,720
35	Jun 21, 2021 11:19	5,765	43,645,908	15,374,000	3,074,000	2,334,720
36	Jun 21, 2021 11:20	5,767	90,894,527	18,453,741	0	2,224,128
37	Jun 21, 2021 11:20	5,768	48,661,578	16,407,000	2,050,000	2,334,720
38	Jun 21, 2021 11:19	5,768	92,587,796	18,457,132	0	2,228,224
39	Jun 21, 2021 11:19	5,776	60,640,186	18,482,522	0	2,244,608
40	Jun 21, 2021 11:20	5,778	37,280,372	15,409,000	3,081,000	2,519,040
41	Jun 21, 2021 11:20	5,785	64,049,002	18,513,247	0	2,232,320
42	Jun 21, 2021 11:20	5,788	67,747,250	18,522,074	0	2,236,416
43	Jun 21, 2021 11:20	5,791	76,408,272	18,530,478	0	2,228,224
44	Jun 21, 2021 11:19	5,806	83,950,770	18,578,283	0	2,232,320
45	Jun 21, 2021 11:19	5,823	85,295,063	18,632,314	0	2,228,224
46	Jun 21, 2021 11:20	5,837	89,139,743	18,678,311	0	2,224,128
47	Jun 21, 2021 11:19	5,883	83,584,080	18,825,731	0	2,244,608
48	Jun 21, 2021 11:20	5,929	90,173,598	18,974,260	0	2,228,224

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