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 listNov 29, 2024 16:16

Joad Nacer

Error

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	Error
1	Nov 29, 2024 17:06	0	0	0	0	0	Error: expected "976327 ", got "1952584 "	stderr
2	Nov 29, 2024 16:15	4,406	37,014,554	12,084,000	2,014,000	2,531,328
3	Nov 29, 2024 16:18	4,409	39,703,857	13,103,000	1,007,000	2,437,120
4	Nov 29, 2024 16:15	4,411	29,882,066	12,099,000	2,016,000	2,428,928
5	Nov 29, 2024 16:17	4,427	35,111,259	13,155,000	1,011,000	2,269,184
6	Nov 29, 2024 16:16	4,427	36,842,779	13,154,000	1,011,000	2,428,928
7	Nov 29, 2024 16:13	4,431	37,380,590	12,153,000	2,025,000	2,269,184
8	Nov 29, 2024 16:14	4,432	36,993,164	13,170,000	1,013,000	2,531,328
9	Nov 29, 2024 16:13	4,433	36,005,381	13,173,000	1,013,000	2,433,024
10	Nov 29, 2024 16:16	4,433	28,977,604	13,172,000	1,013,000	2,510,848
11	Nov 29, 2024 16:16	4,434	33,801,053	13,175,000	1,013,000	2,433,024
12	Nov 29, 2024 16:14	4,437	33,036,153	13,185,000	1,014,000	2,510,848
13	Nov 29, 2024 16:14	4,439	26,870,888	12,175,000	2,029,000	2,269,184
14	Nov 29, 2024 16:17	4,439	33,505,590	13,190,000	1,014,000	2,531,328
15	Nov 29, 2024 16:16	4,439	35,791,828	12,175,000	2,029,000	2,531,328
16	Nov 29, 2024 16:18	4,440	29,647,808	12,178,000	2,029,000	2,428,928
17	Nov 29, 2024 16:19	4,441	29,858,723	13,195,000	1,015,000	2,433,024
18	Nov 29, 2024 16:17	4,441	31,636,866	13,196,000	1,015,000	2,531,328
19	Nov 29, 2024 16:19	4,443	33,527,085	14,219,000	0	2,424,832
20	Nov 29, 2024 16:16	4,444	34,071,529	13,207,000	1,015,000	2,531,328
21	Nov 29, 2024 16:14	4,446	38,449,063	13,212,000	1,016,000	2,424,832
22	Nov 29, 2024 16:18	4,446	45,492,243	13,210,000	1,016,000	2,531,328
23	Nov 29, 2024 16:14	4,446	30,107,973	13,210,000	1,016,000	2,531,328
24	Nov 29, 2024 16:15	4,446	35,927,420	13,212,000	1,016,000	2,531,328
25	Nov 29, 2024 16:18	4,446	32,342,399	13,212,000	1,016,000	2,531,328
26	Nov 29, 2024 16:18	4,448	29,054,357	13,219,000	1,016,000	2,433,024
27	Nov 29, 2024 16:16	4,450	28,150,630	13,223,000	1,017,000	2,433,024
28	Nov 29, 2024 16:19	4,450	31,310,644	13,223,000	1,017,000	2,437,120
29	Nov 29, 2024 16:16	4,452	30,421,796	12,212,000	2,035,000	2,531,328
30	Nov 29, 2024 16:16	4,457	37,801,232	13,243,000	1,018,000	2,428,928
31	Nov 29, 2024 16:16	4,458	31,172,310	13,246,000	1,018,000	2,510,848
32	Nov 29, 2024 16:17	4,460	26,503,598	13,252,000	1,019,000	2,428,928
33	Nov 29, 2024 16:13	4,461	29,681,564	13,255,000	1,019,000	2,433,024
34	Nov 29, 2024 16:17	4,462	36,520,541	13,259,000	1,019,000	2,527,232
35	Nov 29, 2024 16:16	4,465	33,715,262	13,268,000	1,020,000	2,531,328
36	Nov 29, 2024 16:14	4,469	36,837,324	12,259,000	2,043,000	2,523,136
37	Nov 29, 2024 16:14	4,478	32,372,900	12,284,000	2,047,000	2,433,024
38	Nov 29, 2024 16:14	4,479	30,774,040	12,285,000	2,047,000	2,437,120
39	Nov 29, 2024 16:17	4,480	28,529,932	13,313,000	1,024,000	2,510,848
40	Nov 29, 2024 16:18	4,488	25,163,630	14,361,000	0	2,531,328
41	Nov 29, 2024 16:16	4,488	39,527,821	14,360,000	0	2,531,328
42	Nov 29, 2024 16:14	4,493	30,601,825	12,325,000	2,054,000	2,428,928
43	Nov 29, 2024 16:16	4,584	32,340,443	13,622,000	1,047,000	2,269,184
44	Nov 29, 2024 16:16	4,611	30,843,754	14,756,000	0	2,433,024
45	Nov 29, 2024 16:16	4,828	39,509,851	14,483,000	965,000	2,269,184
46	Nov 29, 2024 16:16	5,008	36,876,217	14,024,000	2,003,000	2,519,040

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