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 listJul 13, 2021 19:13

Andrey Tsvetkov

Score: 5,707

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	Jun 20, 2021 18:53	5,650	45,785,887	16,071,000	2,008,000	2,514,944
2	Jun 20, 2021 18:53	5,662	46,869,228	16,106,000	2,013,000	2,334,720
3	Jul 13, 2021 19:19	5,665	42,978,643	15,108,000	3,021,000	2,334,720
4	Jun 20, 2021 18:53	5,667	42,666,267	15,111,000	3,022,000	2,334,720
5	Jun 20, 2021 18:53	5,667	42,373,764	16,119,000	2,014,000	2,523,136
6	Jul 13, 2021 19:13	5,668	44,723,774	15,114,000	3,022,000	2,334,720
7	Jul 13, 2021 19:19	5,671	42,851,322	15,124,000	3,024,000	2,527,232
8	Jun 20, 2021 18:53	5,672	42,993,875	16,134,000	2,016,000	2,531,328
9	Jul 13, 2021 19:12	5,674	47,223,175	16,140,000	2,017,000	2,326,528
10	Jun 20, 2021 18:53	5,674	43,110,817	16,140,000	2,017,000	2,334,720
11	Jun 20, 2021 18:53	5,675	33,361,293	15,134,000	3,026,000	2,519,040
12	Jul 13, 2021 19:19	5,678	40,942,044	16,152,000	2,019,000	2,527,232
13	Jul 13, 2021 19:19	5,678	39,360,134	16,150,000	2,018,000	2,527,232
14	Jun 20, 2021 18:53	5,678	43,482,911	16,150,000	2,018,000	2,527,232
15	Jul 13, 2021 19:12	5,681	44,892,788	16,160,000	2,020,000	2,523,136
16	Jun 20, 2021 18:53	5,685	41,293,834	16,170,000	2,021,000	2,531,328
17	Jun 20, 2021 18:53	5,685	41,186,053	16,170,000	2,021,000	2,334,720
18	Jul 13, 2021 19:12	5,688	37,230,117	15,168,000	3,033,000	2,527,232
19	Jun 20, 2021 18:53	5,688	36,724,953	16,178,000	2,022,000	2,527,232
20	Jun 20, 2021 18:53	5,688	47,303,575	15,168,000	3,033,000	2,334,720
21	Jun 20, 2021 18:53	5,690	38,714,637	17,196,000	1,011,000	2,334,720
22	Jun 20, 2021 18:53	5,690	38,364,061	15,174,000	3,034,000	2,334,720
23	Jul 13, 2021 19:13	5,691	45,622,855	16,187,000	2,023,000	2,531,328
24	Jul 13, 2021 19:13	5,691	40,259,241	16,189,000	2,023,000	2,334,720
25	Jun 20, 2021 18:53	5,693	39,373,640	16,193,000	2,024,000	2,523,136
26	Jul 13, 2021 19:12	5,694	41,933,947	17,209,000	1,012,000	2,330,624
27	Jun 20, 2021 18:53	5,696	32,709,808	16,201,000	2,025,000	2,334,720
28	Jul 13, 2021 19:19	5,697	37,199,607	15,191,000	3,038,000	2,334,720
29	Jun 20, 2021 18:53	5,697	40,654,986	16,204,000	2,025,000	2,334,720
30	Jul 13, 2021 19:19	5,698	45,872,675	16,209,000	2,026,000	2,531,328
31	Jun 20, 2021 18:53	5,699	47,080,127	16,211,000	2,026,000	2,334,720
32	Jul 13, 2021 19:19	5,700	48,700,947	16,215,000	2,026,000	2,523,136
33	Jul 13, 2021 19:13	5,702	40,454,890	15,205,000	3,041,000	2,514,944
34	Jun 20, 2021 18:53	5,702	38,373,443	15,206,000	3,041,000	2,334,720
35	Jul 13, 2021 19:12	5,703	35,780,736	16,223,000	2,027,000	2,334,720
36	Jun 20, 2021 18:53	5,706	40,865,714	16,230,000	2,028,000	2,334,720
37	Jun 20, 2021 18:53	5,707	41,963,833	15,218,000	3,043,000	2,523,136
38	Jul 13, 2021 19:13	5,708	43,339,032	16,235,000	2,029,000	2,310,144
39	Jul 13, 2021 19:13	5,709	81,215,079	18,269,056	0	2,228,224
40	Jul 13, 2021 19:12	5,710	38,584,434	17,256,000	1,015,000	2,519,040
41	Jul 13, 2021 19:12	5,712	42,052,638	15,233,000	3,046,000	2,334,720
42	Jul 13, 2021 19:12	5,713	43,585,003	15,236,000	3,047,000	2,531,328
43	Jun 20, 2021 18:53	5,718	47,816,073	16,264,000	2,033,000	2,334,720
44	Jul 13, 2021 19:13	5,719	44,422,768	15,252,000	3,050,000	2,326,528
45	Jul 13, 2021 19:12	5,720	77,276,914	18,303,714	0	2,228,224
46	Jun 20, 2021 18:53	5,720	105,114,787	18,304,283	0	2,240,512
47	Jun 20, 2021 18:53	5,720	48,433,862	16,271,000	2,033,000	2,334,720
48	Jun 20, 2021 18:53	5,721	50,769,732	16,273,000	2,034,000	2,531,328
49	Jul 13, 2021 19:13	5,722	33,662,568	16,275,000	2,034,000	2,334,720
50	Jul 13, 2021 19:13	5,723	100,455,864	18,313,383	0	2,228,224
51	Jun 20, 2021 18:53	5,724	39,537,038	16,283,000	2,035,000	2,334,720
52	Jun 20, 2021 18:53	5,725	95,536,686	18,319,521	0	2,228,224
53	Jul 13, 2021 19:13	5,728	32,768,689	16,293,000	2,036,000	2,531,328
54	Jun 20, 2021 18:53	5,728	48,870,519	16,294,000	2,036,000	2,527,232
55	Jul 13, 2021 19:19	5,728	39,571,677	15,274,000	3,054,000	2,371,584
56	Jul 13, 2021 19:19	5,730	83,360,732	18,337,564	0	2,232,320
57	Jun 20, 2021 18:53	5,733	40,993,452	16,306,000	2,038,000	2,334,720
58	Jul 13, 2021 19:12	5,734	42,461,119	15,290,000	3,058,000	2,347,008
59	Jun 20, 2021 18:53	5,744	108,981,470	18,380,767	0	2,228,224
60	Jul 13, 2021 19:13	5,755	41,817,857	15,347,000	3,069,000	2,523,136
61	Jul 13, 2021 19:19	5,756	67,440,049	18,419,243	0	2,240,512
62	Jul 13, 2021 19:13	5,761	63,029,887	18,436,163	0	2,236,416
63	Jul 13, 2021 19:12	5,763	61,846,864	18,442,705	0	2,232,320
64	Jun 20, 2021 18:53	5,764	64,344,926	18,443,233	0	2,228,224
65	Jun 20, 2021 18:53	5,776	76,728,722	18,484,440	0	2,232,320
66	Jul 13, 2021 19:19	5,791	39,501,896	16,473,000	2,059,000	2,527,232
67	Jun 20, 2021 18:53	5,798	56,387,495	18,552,421	0	2,228,224
68	Jul 13, 2021 19:19	5,820	91,860,346	18,624,134	0	2,244,608
69	Jul 13, 2021 19:12	5,826	91,767,370	18,641,763	0	2,232,320
70	Jun 20, 2021 18:53	5,857	87,039,021	18,742,025	0	2,232,320
71	Jun 20, 2021 18:53	5,879	97,595,534	18,813,153	0	2,228,224
72	Jun 20, 2021 18:53	5,944	63,463,795	19,021,103	0	2,236,416

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