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 07:31

Andrei Grazhdankov

Score: 12,105

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	Memory
1	May 12, 2021 09:59	11,974	99,366,647	38,318,089	2,256,896
2	May 12, 2021 07:15	11,999	114,980,296	38,397,749	2,248,704
3	May 13, 2021 07:32	12,009	103,781,773	38,429,835	2,244,608
4	May 12, 2021 08:52	12,013	101,624,903	38,441,663	2,256,896
5	May 13, 2021 07:32	12,017	97,155,633	38,455,732	2,248,704
6	May 12, 2021 07:15	12,020	104,817,722	38,462,446	2,256,896
7	May 12, 2021 07:20	12,026	93,773,863	38,481,906	2,248,704
8	May 12, 2021 07:24	12,032	98,643,111	38,501,002	2,248,704
9	May 13, 2021 08:29	12,035	114,363,033	38,510,820	2,248,704
10	May 13, 2021 08:29	12,048	113,848,572	38,554,212	2,244,608
11	May 12, 2021 07:25	12,049	104,872,069	38,557,743	2,244,608
12	May 12, 2021 10:00	12,061	115,882,069	38,596,527	2,252,800
13	May 12, 2021 07:24	12,064	87,709,857	38,605,974	2,248,704
14	May 12, 2021 07:24	12,068	102,715,202	38,617,931	2,256,896
15	May 13, 2021 07:31	12,069	111,052,200	38,620,054	2,244,608
16	May 12, 2021 07:18	12,077	101,928,070	38,645,109	2,256,896
17	May 12, 2021 07:19	12,085	120,043,780	38,671,908	2,248,704
18	May 12, 2021 08:52	12,086	105,861,015	38,675,504	2,256,896
19	May 12, 2021 08:07	12,087	109,681,340	38,677,560	2,256,896
20	May 13, 2021 08:29	12,092	105,275,761	38,694,707	2,256,896
21	May 12, 2021 07:15	12,093	102,857,516	38,697,587	2,248,704
22	May 12, 2021 07:19	12,100	99,816,554	38,719,966	2,256,896
23	May 12, 2021 07:20	12,100	101,844,449	38,720,649	2,248,704
24	May 13, 2021 08:29	12,101	107,662,396	38,723,542	2,244,608
25	May 12, 2021 07:19	12,102	103,015,536	38,725,095	2,256,896
26	May 12, 2021 07:19	12,104	114,932,652	38,733,729	2,248,704
27	May 12, 2021 07:15	12,105	99,710,232	38,736,198	2,248,704
28	May 13, 2021 08:30	12,105	98,870,239	38,737,223	2,256,896
29	May 12, 2021 07:15	12,108	98,658,162	38,746,898	2,240,512
30	May 12, 2021 07:15	12,113	103,766,548	38,761,918	2,248,704
31	May 12, 2021 08:52	12,120	93,900,151	38,785,024	2,248,704
32	May 13, 2021 08:29	12,121	106,566,852	38,787,627	2,252,800
33	May 12, 2021 07:25	12,121	101,928,583	38,788,056	2,252,800
34	May 13, 2021 08:30	12,124	109,893,415	38,798,036	2,244,608
35	May 12, 2021 07:19	12,126	114,533,145	38,804,234	2,240,512
36	May 12, 2021 07:20	12,126	106,395,923	38,803,957	2,256,896
37	May 12, 2021 08:07	12,126	100,153,690	38,802,051	2,252,800
38	May 12, 2021 07:25	12,127	100,487,080	38,806,063	2,248,704
39	May 12, 2021 08:07	12,127	137,625,212	38,807,775	2,252,800
40	May 13, 2021 08:30	12,129	102,225,256	38,812,784	2,256,896
41	May 12, 2021 07:18	12,130	103,333,196	38,816,295	2,236,416
42	May 12, 2021 07:20	12,132	92,625,139	38,821,492	2,248,704
43	May 12, 2021 09:59	12,136	104,341,546	38,836,642	2,244,608
44	May 12, 2021 10:00	12,136	109,708,323	38,835,674	2,256,896
45	May 13, 2021 07:31	12,138	107,389,883	38,841,144	2,248,704
46	May 12, 2021 10:00	12,142	101,577,037	38,855,248	2,252,800
47	May 12, 2021 07:19	12,144	113,201,897	38,859,798	2,248,704
48	May 13, 2021 07:31	12,149	108,021,927	38,876,038	2,248,704
49	May 12, 2021 07:20	12,180	107,321,980	38,975,786	2,248,704
50	May 12, 2021 07:18	12,183	109,523,043	38,987,077	2,240,512
51	May 12, 2021 09:59	12,194	109,435,786	39,021,301	2,244,608
52	May 12, 2021 07:20	12,196	96,189,908	39,027,590	2,248,704
53	May 13, 2021 07:32	12,197	101,628,501	39,029,476	2,248,704
54	May 13, 2021 08:29	12,233	95,507,083	39,147,120	2,244,608

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