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 listJan 26, 2024 00:30

Franek Korta

Score: 4,647

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	Jan 26, 2024 00:31	4,524	29,476,917	13,443,000	1,034,000	2,269,184
2	Jan 26, 2024 00:30	4,527	29,544,890	13,452,000	1,034,000	2,441,216
3	Jan 26, 2024 00:30	4,533	33,216,291	13,471,000	1,036,000	2,531,328
4	Jan 26, 2024 00:31	4,533	29,759,835	14,506,000	0	2,531,328
5	Jan 26, 2024 00:30	4,536	37,598,827	13,478,000	1,036,000	2,449,408
6	Jan 26, 2024 00:30	4,543	27,454,201	14,537,000	0	2,445,312
7	Jan 26, 2024 00:30	4,543	30,274,522	14,537,000	0	2,445,312
8	Jan 26, 2024 00:30	4,543	30,091,874	14,536,000	0	2,441,216
9	Jan 26, 2024 00:30	4,546	31,950,935	13,508,000	1,039,000	2,269,184
10	Jan 26, 2024 00:31	4,549	30,520,774	14,557,000	0	2,531,328
11	Jan 26, 2024 00:31	4,553	35,684,871	14,568,000	0	2,531,328
12	Jan 26, 2024 00:30	4,557	38,961,478	14,582,000	0	2,445,312
13	Jan 26, 2024 00:31	4,560	29,439,939	14,591,000	0	2,269,184
14	Jan 26, 2024 00:31	4,561	40,604,106	13,554,000	1,042,000	2,531,328
15	Jan 26, 2024 00:30	4,562	31,302,037	14,599,000	0	2,527,232
16	Jan 26, 2024 00:31	4,563	29,984,172	13,559,000	1,043,000	2,531,328
17	Jan 26, 2024 00:31	4,565	36,872,490	14,609,000	0	2,531,328
18	Jan 26, 2024 00:29	4,577	33,860,051	13,599,000	1,046,000	2,265,088
19	Jan 26, 2024 00:29	4,578	41,719,314	14,648,000	0	2,445,312
20	Jan 26, 2024 00:29	4,584	31,219,956	13,623,000	1,047,000	2,441,216
21	Jan 26, 2024 00:29	4,584	36,354,419	13,623,000	1,047,000	2,449,408
22	Jan 26, 2024 00:29	4,591	43,070,441	14,692,000	0	2,445,312
23	Jan 26, 2024 00:29	4,603	29,461,302	14,728,000	0	2,441,216
24	Jan 26, 2024 00:31	4,632	32,118,972	12,846,000	1,976,000	2,445,312
25	Jan 26, 2024 00:29	4,647	36,703,784	13,880,000	991,000	2,441,216
26	Jan 26, 2024 00:29	4,648	34,708,060	14,873,000	0	2,531,328
27	Jan 26, 2024 00:29	4,649	31,466,655	13,886,000	991,000	2,527,232
28	Jan 26, 2024 00:30	4,769	83,720,930	15,262,030	0	2,195,456
29	Jan 26, 2024 00:30	4,773	36,871,008	14,256,000	1,018,000	2,441,216
30	Jan 26, 2024 00:30	4,785	31,505,875	14,293,000	1,020,000	2,531,328
31	Jan 26, 2024 00:30	4,790	48,044,678	15,329,000	0	2,527,232
32	Jan 26, 2024 00:30	4,795	32,220,668	15,345,000	0	2,265,088
33	Jan 26, 2024 00:30	4,796	89,627,456	15,347,975	0	2,199,552
34	Jan 26, 2024 00:30	4,796	37,096,456	15,347,000	0	2,531,328
35	Jan 26, 2024 00:30	4,800	63,110,159	15,361,545	0	2,256,896
36	Jan 26, 2024 00:30	4,804	42,321,814	15,372,000	0	2,527,232
37	Jan 26, 2024 00:30	4,807	36,851,421	15,383,000	0	2,441,216
38	Jan 26, 2024 00:30	4,814	33,229,320	15,405,000	0	2,453,504
39	Jan 26, 2024 00:31	4,815	82,215,121	15,408,208	0	2,195,456
40	Jan 26, 2024 00:31	4,815	74,570,609	15,407,970	0	2,199,552
41	Jan 26, 2024 00:31	4,824	90,150,696	15,436,323	0	2,199,552
42	Jan 26, 2024 00:29	4,831	65,995,750	15,459,173	0	2,199,552
43	Jan 26, 2024 00:30	4,838	39,317,659	15,481,000	0	2,269,184
44	Jan 26, 2024 00:29	4,846	75,509,523	15,508,140	0	2,207,744
45	Jan 26, 2024 00:29	4,925	89,424,681	15,761,554	0	2,207,744
46	Jan 26, 2024 00:30	5,042	80,623,368	16,133,453	0	2,203,648
47	Jan 26, 2024 00:30	5,044	86,943,871	16,140,444	0	2,195,456
48	Jan 26, 2024 00:30	5,061	83,358,627	16,195,925	0	2,207,744

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