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 25, 2024 16:22

Yuriy Lyfenko

Score: 4,434

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	Jul 25, 2024 16:23	4,397	541,707,809	12,060,000	2,010,000	2,392,064
2	Jul 25, 2024 16:23	4,399	538,450,263	13,073,000	1,005,000	2,265,088
3	Jul 25, 2024 16:23	4,401	538,190,030	12,071,000	2,011,000	2,260,992
4	Jul 25, 2024 16:22	4,402	539,701,004	13,080,000	1,006,000	2,523,136
5	Jul 25, 2024 16:22	4,403	544,772,595	12,077,000	2,012,000	2,265,088
6	Jul 25, 2024 16:22	4,404	544,309,117	12,081,000	2,013,000	2,265,088
7	Jul 25, 2024 16:22	4,407	546,837,756	12,089,000	2,014,000	2,265,088
8	Jul 25, 2024 16:22	4,407	542,514,664	12,087,000	2,014,000	2,396,160
9	Jul 25, 2024 16:23	4,407	537,827,537	12,088,000	2,014,000	2,252,800
10	Jul 25, 2024 16:22	4,410	540,026,873	12,096,000	2,016,000	2,265,088
11	Jul 25, 2024 16:22	4,413	539,682,921	12,104,000	2,017,000	2,265,088
12	Jul 25, 2024 16:22	4,419	540,762,533	12,122,000	2,020,000	2,265,088
13	Jul 25, 2024 16:22	4,422	541,639,074	12,130,000	2,021,000	2,265,088
14	Jul 25, 2024 16:22	4,423	541,651,136	12,132,000	2,022,000	2,523,136
15	Jul 25, 2024 16:22	4,424	538,985,494	13,146,000	1,011,000	2,523,136
16	Jul 25, 2024 16:23	4,431	543,630,548	12,154,000	2,025,000	2,519,040
17	Jul 25, 2024 16:22	4,432	538,239,929	14,181,000	0	2,265,088
18	Jul 25, 2024 16:22	4,433	541,388,639	12,158,000	2,026,000	2,523,136
19	Jul 25, 2024 16:23	4,434	536,918,458	12,162,000	2,027,000	2,260,992
20	Jul 25, 2024 16:22	4,434	538,666,799	13,175,000	1,013,000	2,387,968
21	Jul 25, 2024 16:22	4,435	536,759,758	13,179,000	1,013,000	2,265,088
22	Jul 25, 2024 16:23	4,436	537,296,273	14,194,000	0	2,523,136
23	Jul 25, 2024 16:22	4,437	542,556,191	13,184,000	1,014,000	2,523,136
24	Jul 25, 2024 16:22	4,438	542,559,752	12,173,000	2,028,000	2,523,136
25	Jul 25, 2024 16:22	4,441	547,338,591	12,181,000	2,030,000	2,519,040
26	Jul 25, 2024 16:23	4,445	542,785,357	12,192,000	2,032,000	2,265,088
27	Jul 25, 2024 16:23	4,448	537,160,108	12,202,000	2,033,000	2,265,088
28	Jul 25, 2024 16:22	4,601	585,353,983	14,722,885	0	2,281,472
29	Jul 25, 2024 16:22	4,616	577,911,198	14,770,489	0	2,273,280
30	Jul 25, 2024 16:22	4,617	580,938,944	14,772,839	0	2,342,912
31	Jul 25, 2024 16:22	4,630	579,138,674	14,815,979	0	2,338,816
32	Jul 25, 2024 16:23	4,638	588,926,460	14,840,309	0	2,277,376
33	Jul 25, 2024 16:22	4,642	589,009,698	14,855,216	0	2,285,568
34	Jul 25, 2024 16:23	4,647	576,264,073	14,871,203	0	2,281,472
35	Jul 25, 2024 16:23	4,656	580,134,760	14,899,537	0	2,240,512
36	Jul 25, 2024 16:22	4,656	592,529,768	14,899,094	0	2,277,376

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