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 13, 2021 10:53

Andrey Tsvetkov

Score: 6,186

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 16, 2021 08:22	6,111	49,141,462	16,467,000	3,087,000	2,326,528
2	May 13, 2021 10:53	6,113	45,251,369	19,561,000	0	2,531,328
3	May 13, 2021 10:53	6,114	38,080,261	18,535,000	1,029,000	2,527,232
4	May 13, 2021 10:54	6,118	48,273,499	19,577,000	0	2,322,432
5	May 16, 2021 08:22	6,119	41,364,120	16,489,000	3,091,000	2,326,528
6	May 13, 2021 10:54	6,121	34,778,742	19,587,000	0	2,326,528
7	May 13, 2021 10:53	6,122	38,916,143	17,527,000	2,062,000	2,326,528
8	May 13, 2021 10:54	6,123	39,321,378	17,532,000	2,062,000	2,330,624
9	May 13, 2021 10:53	6,129	45,214,987	17,548,000	2,064,000	2,527,232
10	May 13, 2021 10:54	6,136	46,038,753	18,603,000	1,033,000	2,326,528
11	May 13, 2021 10:54	6,140	45,614,434	17,579,000	2,068,000	2,326,528
12	May 16, 2021 08:22	6,141	42,149,232	18,617,000	1,034,000	2,375,680
13	May 16, 2021 08:22	6,141	44,974,916	18,618,000	1,034,000	2,330,624
14	May 13, 2021 10:53	6,146	49,795,402	18,632,000	1,035,000	2,527,232
15	May 16, 2021 08:22	6,148	47,477,942	18,640,000	1,035,000	2,326,528
16	May 13, 2021 10:53	6,153	41,516,739	18,655,000	1,036,000	2,519,040
17	May 13, 2021 10:54	6,153	48,742,746	18,655,000	1,036,000	2,330,624
18	May 13, 2021 10:54	6,155	47,477,065	18,659,000	1,036,000	2,519,040
19	May 13, 2021 10:53	6,158	48,110,184	19,705,000	0	2,523,136
20	May 16, 2021 08:22	6,161	36,842,556	17,640,000	2,075,000	2,531,328
21	May 13, 2021 10:54	6,163	46,175,434	17,645,000	2,075,000	2,531,328
22	May 13, 2021 10:53	6,186	83,963,586	19,796,750	0	2,240,512
23	May 13, 2021 10:54	6,194	80,261,593	19,819,891	0	2,244,608
24	May 16, 2021 08:22	6,197	34,106,200	18,840,000	991,000	2,387,968
25	May 16, 2021 08:22	6,202	40,758,532	16,869,000	2,976,000	2,326,528
26	May 13, 2021 10:53	6,204	87,840,646	19,852,993	0	2,232,320
27	May 13, 2021 10:53	6,205	36,481,058	16,877,000	2,978,000	2,531,328
28	May 13, 2021 10:54	6,207	80,481,110	19,863,615	0	2,220,032
29	May 16, 2021 08:22	6,210	44,535,632	17,886,000	1,987,000	2,531,328
30	May 13, 2021 10:54	6,214	48,937,651	18,892,000	994,000	2,326,528
31	May 13, 2021 10:53	6,216	44,983,492	16,908,000	2,983,000	2,326,528
32	May 13, 2021 10:53	6,219	95,641,013	19,902,060	0	2,220,032
33	May 16, 2021 08:22	6,225	90,255,709	19,920,178	0	2,232,320
34	May 16, 2021 08:22	6,230	79,346,009	19,936,886	0	2,236,416
35	May 16, 2021 08:22	6,239	93,308,042	19,964,146	0	2,232,320
36	May 13, 2021 10:54	6,250	83,962,866	20,000,713	0	2,236,416
37	May 13, 2021 10:53	6,257	93,841,770	20,023,676	0	2,240,512
38	May 13, 2021 10:53	6,261	109,787,145	20,035,877	0	2,228,224
39	May 13, 2021 10:53	6,267	85,212,937	20,055,341	0	2,228,224
40	May 13, 2021 10:53	6,299	84,918,136	20,158,196	0	2,224,128
41	May 13, 2021 10:53	6,318	109,487,361	20,218,882	0	2,232,320
42	May 13, 2021 10:53	6,322	97,143,799	20,229,131	0	2,228,224

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