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.

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lukostScore: 4,436Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 3, 2025 18:45	4,417	30,169,146	12,114,000	2,019,000	2,277,376
2	May 3, 2025 18:46	4,417	35,731,872	12,114,000	2,019,000	2,539,520
3	May 6, 2025 12:16	4,420	28,271,336	12,123,000	2,020,000	2,445,312
4	May 6, 2025 12:17	4,422	31,419,190	12,129,000	2,021,000	2,445,312
5	May 3, 2025 18:46	4,422	30,649,010	12,128,000	2,021,000	2,539,520
6	May 6, 2025 12:17	4,422	31,326,347	12,129,000	2,021,000	2,449,408
7	May 6, 2025 12:17	4,425	37,611,226	13,150,000	1,011,000	2,269,184
8	May 6, 2025 12:17	4,426	36,751,040	12,141,000	2,023,000	2,277,376
9	May 3, 2025 18:46	4,427	31,300,159	12,142,000	2,023,000	2,539,520
10	May 3, 2025 18:45	4,428	34,549,829	12,146,000	2,024,000	2,441,216
11	May 6, 2025 12:17	4,428	32,512,601	12,144,000	2,024,000	2,277,376
12	May 3, 2025 18:45	4,428	30,918,281	12,146,000	2,024,000	2,441,216
13	May 3, 2025 18:46	4,428	28,567,594	12,147,000	2,024,000	2,539,520
14	May 6, 2025 12:17	4,429	28,332,948	12,149,000	2,024,000	2,531,328
15	May 3, 2025 18:46	4,429	27,662,784	12,148,000	2,024,000	2,277,376
16	May 6, 2025 12:17	4,431	34,659,796	12,153,000	2,025,000	2,441,216
17	May 3, 2025 18:57	4,431	30,060,536	12,154,000	2,025,000	2,437,120
18	May 3, 2025 18:45	4,431	30,445,694	12,155,000	2,025,000	2,539,520
19	May 3, 2025 18:46	4,432	34,357,713	12,156,000	2,026,000	2,531,328
20	May 3, 2025 18:57	4,432	30,173,487	12,157,000	2,026,000	2,441,216
21	May 3, 2025 18:46	4,432	35,778,210	12,156,000	2,026,000	2,441,216
22	May 3, 2025 18:46	4,433	38,044,040	12,160,000	2,026,000	2,445,312
23	May 3, 2025 18:45	4,434	28,956,474	12,162,000	2,027,000	2,539,520
24	May 3, 2025 18:46	4,434	29,749,419	12,163,000	2,027,000	2,445,312
25	May 6, 2025 17:50	4,436	27,610,618	12,168,000	2,028,000	2,531,328
26	May 6, 2025 12:17	4,438	26,273,462	12,173,000	2,028,000	2,535,424
27	May 3, 2025 18:46	4,439	38,934,453	12,177,000	2,029,000	2,441,216
28	May 6, 2025 12:17	4,439	35,350,138	12,177,000	2,029,000	2,539,520
29	May 3, 2025 18:46	4,439	33,833,082	12,175,000	2,029,000	2,449,408
30	May 6, 2025 12:17	4,441	29,297,574	12,180,000	2,030,000	2,437,120
31	May 6, 2025 12:16	4,442	34,410,165	12,184,000	2,030,000	2,453,504
32	May 3, 2025 18:46	4,443	39,242,178	13,204,000	1,015,000	2,437,120
33	May 3, 2025 18:46	4,444	31,273,046	12,189,000	2,031,000	2,437,120
34	May 3, 2025 18:46	4,446	29,944,267	12,196,000	2,032,000	2,437,120
35	May 3, 2025 18:46	4,446	31,509,242	12,194,000	2,032,000	2,539,520
36	May 3, 2025 18:46	4,448	33,701,635	12,201,000	2,033,000	2,531,328
37	May 6, 2025 12:17	4,448	31,215,009	12,201,000	2,033,000	2,535,424
38	May 3, 2025 18:57	4,450	39,234,936	13,223,000	1,017,000	2,539,520
39	May 6, 2025 17:50	4,451	35,075,031	12,209,000	2,034,000	2,539,520
40	May 6, 2025 17:50	4,456	31,409,323	12,223,000	2,037,000	2,445,312
41	May 3, 2025 18:46	4,457	30,112,046	12,226,000	2,037,000	2,445,312
42	May 3, 2025 18:46	4,459	29,647,258	13,249,000	1,019,000	2,445,312
43	May 6, 2025 12:17	4,462	37,547,092	12,239,000	2,039,000	2,445,312
44	May 3, 2025 18:45	4,465	33,193,229	12,248,000	2,041,000	2,453,504
45	May 6, 2025 12:17	4,471	30,078,864	13,286,000	1,022,000	2,523,136
46	May 6, 2025 12:17	4,474	27,754,444	12,272,000	2,045,000	2,539,520
47	May 6, 2025 12:16	4,475	30,154,818	12,275,000	2,045,000	2,445,312
48	May 6, 2025 12:17	4,483	30,777,765	14,345,000	0	2,441,216

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