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 listSep 19, 2022 09:59

Kenneth Maples

Score: 5,325

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	Sep 19, 2022 09:50	5,277	32,159,606	16,885,000	0	2,387,968
2	Sep 19, 2022 09:54	5,284	38,028,758	15,854,000	1,056,000	2,392,064
3	Sep 19, 2022 09:54	5,284	45,486,550	14,920,000	1,989,000	2,519,040
4	Sep 19, 2022 09:54	5,291	32,397,595	15,935,000	995,000	2,519,040
5	Sep 19, 2022 09:54	5,292	41,183,587	13,946,000	2,988,000	2,379,776
6	Sep 19, 2022 09:50	5,293	42,468,278	15,943,000	996,000	2,392,064
7	Sep 19, 2022 09:59	5,294	48,135,963	15,944,000	996,000	2,383,872
8	Sep 19, 2022 09:54	5,295	34,162,547	14,952,000	1,993,000	2,383,872
9	Sep 19, 2022 09:50	5,295	32,536,500	15,948,000	996,000	2,396,160
10	Sep 19, 2022 09:50	5,297	36,724,143	13,958,000	2,991,000	2,519,040
11	Sep 19, 2022 09:50	5,297	46,422,184	15,953,000	997,000	2,392,064
12	Sep 19, 2022 09:50	5,297	45,697,467	15,952,000	997,000	2,383,872
13	Sep 19, 2022 09:50	5,300	42,639,782	14,965,000	1,995,000	2,502,656
14	Sep 19, 2022 09:50	5,300	51,555,978	15,964,000	997,000	2,396,160
15	Sep 19, 2022 09:59	5,300	49,209,189	15,963,000	997,000	2,519,040
16	Sep 19, 2022 09:59	5,304	36,454,680	13,979,000	2,995,000	2,519,040
17	Sep 19, 2022 09:59	5,306	44,839,622	13,984,000	2,996,000	2,523,136
18	Sep 19, 2022 09:50	5,309	33,825,862	15,991,000	999,000	2,523,136
19	Sep 19, 2022 09:54	5,313	36,738,943	16,002,000	1,000,000	2,519,040
20	Sep 19, 2022 09:50	5,313	41,528,539	15,000,000	2,000,000	2,506,752
21	Sep 19, 2022 09:50	5,315	42,737,638	14,008,000	3,001,000	2,387,968
22	Sep 19, 2022 09:59	5,321	33,268,195	15,025,000	2,003,000	2,502,656
23	Sep 19, 2022 09:50	5,322	34,167,924	16,028,000	1,001,000	2,396,160
24	Sep 19, 2022 09:54	5,322	33,151,223	15,028,000	2,003,000	2,387,968
25	Sep 19, 2022 09:50	5,325	47,507,351	16,038,000	1,002,000	2,387,968
26	Sep 19, 2022 09:50	5,325	39,093,494	15,036,000	2,004,000	2,392,064
27	Sep 19, 2022 09:54	5,331	37,278,567	16,055,000	1,003,000	2,519,040
28	Sep 19, 2022 09:50	5,336	43,832,245	15,067,000	2,009,000	2,392,064
29	Sep 19, 2022 09:50	5,337	47,016,015	16,075,000	1,004,000	2,519,040
30	Sep 19, 2022 09:59	5,339	40,958,543	14,070,000	3,015,000	2,265,088
31	Sep 19, 2022 09:50	5,343	50,576,616	15,087,000	2,011,000	2,392,064
32	Sep 19, 2022 09:59	5,352	34,523,485	14,105,000	3,022,000	2,519,040
33	Sep 19, 2022 09:54	5,359	36,968,646	15,133,000	2,017,000	2,519,040
34	Sep 19, 2022 09:50	5,431	44,535,401	16,356,000	1,022,000	2,519,040
35	Sep 19, 2022 09:59	5,440	46,427,340	15,361,000	2,048,000	2,260,992
36	Sep 19, 2022 09:59	5,445	44,352,198	16,400,000	1,025,000	2,519,040
37	Sep 19, 2022 09:50	5,504	68,777,948	17,611,506	0	2,281,472
38	Sep 19, 2022 09:50	5,517	68,689,926	17,655,593	0	2,273,280
39	Sep 19, 2022 09:59	5,523	86,709,363	17,672,363	0	2,285,568
40	Sep 19, 2022 09:59	5,524	93,094,448	17,677,734	0	2,293,760
41	Sep 19, 2022 09:54	5,531	79,920,357	17,699,585	0	2,281,472
42	Sep 19, 2022 09:50	5,534	88,008,718	17,709,460	0	2,289,664
43	Sep 19, 2022 09:54	5,536	63,375,002	17,715,722	0	2,273,280
44	Sep 19, 2022 09:50	5,544	74,497,754	17,742,374	0	2,277,376
45	Sep 19, 2022 09:50	5,574	99,693,229	17,837,286	0	2,277,376
46	Sep 19, 2022 09:59	5,579	76,989,027	17,854,350	0	2,281,472
47	Sep 19, 2022 09:54	5,579	68,856,241	17,853,043	0	2,277,376
48	Sep 19, 2022 09:50	5,587	88,926,415	17,879,292	0	2,293,760

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