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 22, 2021 17:53

Andrey Tsvetkov

Score: 5,733

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 22, 2021 18:02	5,686	42,882,698	15,164,000	3,032,000	2,334,720
2	May 22, 2021 18:02	5,689	41,338,965	14,159,000	4,045,000	2,334,720
3	May 22, 2021 17:53	5,693	38,054,328	16,194,000	2,024,000	2,531,328
4	May 22, 2021 17:53	5,693	34,516,184	16,192,000	2,024,000	2,523,136
5	May 22, 2021 17:53	5,696	40,957,829	16,201,000	2,025,000	2,334,720
6	May 23, 2021 10:14	5,697	43,546,771	16,204,000	2,025,000	2,334,720
7	May 23, 2021 10:14	5,698	41,448,691	16,208,000	2,026,000	2,334,720
8	May 22, 2021 18:02	5,700	40,867,234	15,201,000	3,040,000	2,334,720
9	May 22, 2021 17:53	5,703	41,650,148	16,222,000	2,027,000	2,334,720
10	May 22, 2021 17:53	5,703	41,200,323	16,221,000	2,027,000	2,531,328
11	May 22, 2021 17:53	5,703	40,686,861	16,222,000	2,027,000	2,396,160
12	May 22, 2021 18:02	5,704	42,909,545	16,226,000	2,028,000	2,523,136
13	May 22, 2021 17:53	5,706	34,582,927	16,230,000	2,028,000	2,334,720
14	May 22, 2021 17:53	5,708	44,700,972	15,221,000	3,044,000	2,334,720
15	May 22, 2021 17:53	5,710	43,030,396	16,243,000	2,030,000	2,531,328
16	May 23, 2021 10:14	5,711	42,235,085	16,244,000	2,030,000	2,334,720
17	May 23, 2021 10:14	5,713	38,185,374	16,250,000	2,031,000	2,334,720
18	May 22, 2021 18:02	5,714	44,179,623	16,255,000	2,031,000	2,334,720
19	May 23, 2021 10:14	5,717	39,806,175	16,263,000	2,032,000	2,523,136
20	May 23, 2021 10:14	5,718	57,974,819	18,297,488	0	2,224,128
21	May 22, 2021 17:53	5,720	42,767,756	15,253,000	3,050,000	2,334,720
22	May 22, 2021 17:53	5,721	39,478,847	15,256,000	3,051,000	2,334,720
23	May 22, 2021 17:53	5,722	42,746,257	15,258,000	3,051,000	2,334,720
24	May 22, 2021 18:02	5,722	43,722,320	16,277,000	2,034,000	2,527,232
25	May 22, 2021 17:53	5,726	41,027,804	16,287,000	2,035,000	2,326,528
26	May 22, 2021 18:02	5,727	40,528,900	15,271,000	3,054,000	2,334,720
27	May 22, 2021 17:53	5,729	36,685,038	16,297,000	2,037,000	2,334,720
28	May 23, 2021 10:14	5,731	42,501,208	17,320,000	1,018,000	2,334,720
29	May 22, 2021 18:02	5,732	38,448,182	16,305,000	2,038,000	2,318,336
30	May 22, 2021 17:53	5,732	41,432,340	16,305,000	2,038,000	2,519,040
31	May 23, 2021 10:14	5,733	44,291,994	16,308,000	2,038,000	2,519,040
32	May 22, 2021 17:53	5,733	37,528,354	16,306,000	2,038,000	2,375,680
33	May 22, 2021 18:02	5,734	40,904,455	15,290,000	3,058,000	2,527,232
34	May 23, 2021 10:14	5,740	38,412,011	16,327,000	2,040,000	2,334,720
35	May 23, 2021 10:14	5,743	42,994,022	14,295,000	4,084,000	2,531,328
36	May 22, 2021 17:53	5,746	41,921,277	15,323,000	3,064,000	2,523,136
37	May 22, 2021 17:53	5,747	48,316,137	17,370,000	1,021,000	2,334,720
38	May 22, 2021 17:53	5,747	67,288,463	18,391,598	0	2,236,416
39	May 22, 2021 17:53	5,749	55,675,053	18,396,758	0	2,236,416
40	May 22, 2021 17:53	5,753	78,321,323	18,409,301	0	2,240,512
41	May 23, 2021 10:14	5,754	76,654,385	18,412,312	0	2,236,416
42	May 22, 2021 18:02	5,765	64,115,083	18,447,277	0	2,232,320
43	May 22, 2021 18:02	5,766	86,592,950	18,452,075	0	2,236,416
44	May 23, 2021 10:14	5,775	83,688,799	18,478,917	0	2,236,416
45	May 22, 2021 18:02	5,778	86,258,032	18,488,838	0	2,232,320
46	May 22, 2021 18:02	5,793	52,715,640	18,536,178	0	2,240,512
47	May 22, 2021 17:53	5,802	94,772,666	18,566,288	0	2,232,320
48	May 22, 2021 17:53	5,830	88,379,963	18,657,529	0	2,236,416
49	May 23, 2021 10:14	5,838	83,685,180	18,682,894	0	2,228,224
50	May 23, 2021 10:14	5,840	85,593,639	18,686,713	0	2,228,224
51	May 22, 2021 17:53	5,848	77,078,029	18,713,569	0	2,236,416
52	May 22, 2021 18:02	5,856	91,380,074	18,738,385	0	2,244,608
53	May 22, 2021 17:53	5,860	88,921,915	18,750,574	0	2,224,128
54	May 22, 2021 17:53	5,862	89,423,199	18,758,610	0	2,236,416
55	May 22, 2021 17:53	5,881	82,693,783	18,817,968	0	2,232,320
56	May 23, 2021 10:14	5,886	85,713,966	18,836,104	0	2,232,320
57	May 22, 2021 17:53	5,886	77,957,004	18,836,461	0	2,232,320
58	May 22, 2021 17:53	5,931	100,499,498	18,979,570	0	2,244,608
59	May 22, 2021 17:53	5,960	90,151,486	19,073,333	0	2,228,224
60	May 22, 2021 18:02	5,972	83,904,575	19,111,322	0	2,236,416

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