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 11, 2021 21:54

Mikhail Dektyarev

Score: 5,069

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 11, 2021 21:24	5,029	40,837,828	13,077,000	3,017,000	2,379,776
2	May 11, 2021 21:54	5,031	34,534,449	14,088,000	2,012,000	2,387,968
3	May 11, 2021 21:32	5,034	41,120,643	14,097,000	2,013,000	2,519,040
4	May 11, 2021 21:42	5,036	41,806,186	13,095,000	3,021,000	2,510,848
5	May 11, 2021 21:54	5,038	34,227,690	14,107,000	2,015,000	2,387,968
6	May 11, 2021 21:32	5,039	47,754,801	13,101,000	3,023,000	2,392,064
7	May 11, 2021 21:26	5,042	38,246,331	15,125,000	1,008,000	2,387,968
8	May 11, 2021 21:24	5,043	31,309,382	15,131,000	1,008,000	2,502,656
9	May 11, 2021 21:26	5,044	30,666,420	15,132,000	1,008,000	2,387,968
10	May 11, 2021 21:42	5,044	33,732,610	14,123,000	2,017,000	2,519,040
11	May 11, 2021 21:26	5,046	33,646,471	12,111,000	4,037,000	2,387,968
12	May 11, 2021 21:42	5,051	35,641,006	13,133,000	3,030,000	2,387,968
13	May 11, 2021 21:42	5,054	39,135,177	14,152,000	2,021,000	2,383,872
14	May 11, 2021 21:24	5,057	44,367,151	15,172,000	1,011,000	2,379,776
15	May 11, 2021 21:54	5,057	32,950,885	14,160,000	2,022,000	2,383,872
16	May 11, 2021 21:26	5,058	47,532,071	15,176,000	1,011,000	2,375,680
17	May 11, 2021 21:42	5,059	44,590,950	13,154,000	3,035,000	2,392,064
18	May 11, 2021 21:32	5,061	33,536,221	14,170,000	2,024,000	2,519,040
19	May 11, 2021 21:32	5,061	40,811,333	14,171,000	2,024,000	2,387,968
20	May 11, 2021 21:32	5,061	35,865,295	14,171,000	2,024,000	2,383,872
21	May 11, 2021 21:32	5,061	31,866,610	15,184,000	1,012,000	2,506,752
22	May 11, 2021 21:24	5,063	32,565,660	14,176,000	2,025,000	2,519,040
23	May 11, 2021 21:26	5,064	41,376,908	13,166,000	3,038,000	2,260,992
24	May 11, 2021 21:24	5,064	41,512,629	14,179,000	2,025,000	2,519,040
25	May 11, 2021 21:54	5,065	30,671,948	14,183,000	2,026,000	2,519,040
26	May 11, 2021 21:26	5,067	33,851,073	14,187,000	2,026,000	2,465,792
27	May 11, 2021 21:42	5,067	30,850,536	14,188,000	2,026,000	2,519,040
28	May 11, 2021 21:42	5,068	43,773,436	15,203,000	1,013,000	2,519,040
29	May 11, 2021 21:24	5,068	33,274,186	14,189,000	2,027,000	2,387,968
30	May 11, 2021 21:32	5,069	38,538,035	15,209,000	1,013,000	2,519,040
31	May 11, 2021 21:54	5,069	36,224,768	13,180,000	3,041,000	2,519,040
32	May 11, 2021 21:42	5,069	32,319,867	14,194,000	2,027,000	2,519,040
33	May 11, 2021 21:26	5,071	48,864,365	14,198,000	2,028,000	2,379,776
34	May 11, 2021 21:24	5,072	47,966,094	14,202,000	2,028,000	2,519,040
35	May 11, 2021 21:26	5,074	43,707,322	15,222,000	1,014,000	2,519,040
36	May 11, 2021 21:54	5,077	36,567,636	13,200,000	3,046,000	2,379,776
37	May 11, 2021 21:42	5,077	33,293,893	15,232,000	1,015,000	2,519,040
38	May 11, 2021 21:26	5,078	40,759,804	15,235,000	1,015,000	2,519,040
39	May 11, 2021 21:24	5,082	37,676,498	16,263,000	0	2,519,040
40	May 11, 2021 21:54	5,086	38,427,484	14,240,000	2,034,000	2,519,040
41	May 11, 2021 21:32	5,086	42,621,277	14,240,000	2,034,000	2,392,064
42	May 11, 2021 21:32	5,086	36,090,537	15,258,000	1,017,000	2,383,872
43	May 11, 2021 21:24	5,088	32,758,563	15,263,000	1,017,000	2,387,968
44	May 11, 2021 21:54	5,091	41,199,313	14,254,000	2,036,000	2,383,872
45	May 11, 2021 21:54	5,109	36,692,447	15,327,000	1,021,000	2,519,040
46	May 11, 2021 21:24	5,260	83,800,256	16,831,990	0	2,285,568
47	May 11, 2021 21:42	5,299	62,528,803	16,956,249	0	2,277,376
48	May 11, 2021 21:32	5,305	57,002,727	16,975,669	0	2,281,472
49	May 11, 2021 21:42	5,308	83,235,606	16,987,106	0	2,285,568
50	May 11, 2021 21:26	5,316	92,857,000	17,011,645	0	2,281,472
51	May 11, 2021 21:24	5,326	71,192,347	17,042,150	0	2,285,568
52	May 11, 2021 21:24	5,338	74,344,858	17,081,557	0	2,273,280
53	May 11, 2021 21:54	5,339	94,185,215	17,084,647	0	2,265,088
54	May 11, 2021 21:32	5,341	89,130,611	17,092,019	0	2,277,376
55	May 11, 2021 21:26	5,344	80,420,476	17,100,940	0	2,277,376
56	May 11, 2021 21:54	5,350	67,413,180	17,120,834	0	2,281,472
57	May 11, 2021 21:42	5,361	78,873,368	17,155,176	0	2,289,664
58	May 11, 2021 21:26	5,361	85,516,181	17,154,813	0	2,273,280
59	May 11, 2021 21:54	5,366	78,968,156	17,170,610	0	2,277,376
60	May 11, 2021 21:32	5,388	72,531,286	17,242,589	0	2,277,376

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