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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jhallgreenScore: 4,482Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Dec 21, 2025 20:48	4,433	31,542,496	12,158,000	2,026,000	2,408,448
2	Dec 21, 2025 20:48	4,434	36,367,315	13,176,000	1,013,000	2,281,472
3	Dec 21, 2025 20:49	4,439	32,504,915	12,177,000	2,029,000	2,404,352
4	Dec 21, 2025 20:49	4,442	35,256,658	13,199,000	1,015,000	2,400,256
5	Dec 21, 2025 20:48	4,446	40,120,134	12,195,000	2,032,000	2,281,472
6	Dec 21, 2025 20:48	4,448	32,086,222	12,202,000	2,033,000	2,412,544
7	Dec 21, 2025 20:48	4,450	34,412,769	12,207,000	2,034,000	2,408,448
8	Dec 21, 2025 20:48	4,453	31,188,471	12,213,000	2,035,000	2,400,256
9	Dec 21, 2025 20:49	4,458	31,764,480	13,248,000	1,019,000	2,281,472
10	Dec 21, 2025 20:48	4,458	36,397,681	12,229,000	2,038,000	2,281,472
11	Dec 21, 2025 20:49	4,461	28,739,529	13,257,000	1,019,000	2,281,472
12	Dec 21, 2025 20:50	4,463	39,247,696	14,281,000	0	2,408,448
13	Dec 21, 2025 20:48	4,466	31,466,005	13,270,000	1,020,000	2,277,376
14	Dec 21, 2025 20:48	4,468	32,097,998	13,277,000	1,021,000	2,400,256
15	Dec 21, 2025 20:48	4,470	29,799,909	13,284,000	1,021,000	2,281,472
16	Dec 21, 2025 20:48	4,470	30,986,413	13,283,000	1,021,000	2,281,472
17	Dec 21, 2025 20:49	4,472	28,898,636	14,311,000	0	2,281,472
18	Dec 21, 2025 20:50	4,473	33,050,689	13,292,000	1,022,000	2,396,160
19	Dec 21, 2025 20:48	4,473	29,891,399	12,268,000	2,044,000	2,281,472
20	Dec 21, 2025 20:49	4,475	35,549,238	14,320,000	0	2,281,472
21	Dec 21, 2025 20:50	4,480	32,404,752	13,313,000	1,024,000	2,281,472
22	Dec 21, 2025 20:48	4,482	30,302,136	14,343,000	0	2,277,376
23	Dec 21, 2025 20:48	4,483	43,554,290	14,347,000	0	2,400,256
24	Dec 21, 2025 20:48	4,486	35,042,627	13,331,000	1,025,000	2,404,352
25	Dec 21, 2025 20:48	4,494	38,392,410	13,355,000	1,027,000	2,408,448
26	Dec 21, 2025 20:50	4,530	36,521,417	14,495,000	0	2,519,040
27	Dec 21, 2025 20:50	4,535	40,441,061	13,477,000	1,036,000	2,281,472
28	Dec 21, 2025 20:51	4,536	31,372,272	13,479,000	1,036,000	2,523,136
29	Dec 21, 2025 20:48	4,545	33,430,892	14,543,000	0	2,281,472
30	Dec 21, 2025 20:51	4,548	41,849,856	13,516,000	1,039,000	2,404,352
31	Dec 21, 2025 20:51	4,557	32,018,882	13,540,000	1,041,000	2,281,472
32	Dec 21, 2025 20:50	4,583	31,186,111	13,619,000	1,047,000	2,400,256
33	Dec 21, 2025 20:48	4,592	38,686,799	14,693,000	0	2,277,376
34	Dec 21, 2025 20:50	4,695	36,787,452	13,021,000	2,003,000	2,281,472
35	Dec 21, 2025 20:49	4,704	32,533,980	13,047,000	2,007,000	2,281,472
36	Dec 21, 2025 20:49	4,708	31,084,761	14,063,000	1,004,000	2,396,160
37	Dec 21, 2025 20:50	4,709	39,926,976	13,060,000	2,009,000	2,281,472
38	Dec 21, 2025 20:49	4,711	32,624,554	14,070,000	1,005,000	2,281,472
39	Dec 21, 2025 20:50	4,712	30,370,681	14,073,000	1,005,000	2,408,448
40	Dec 21, 2025 20:49	4,720	35,763,916	14,098,000	1,007,000	2,400,256
41	Dec 21, 2025 20:49	4,733	34,243,515	13,128,000	2,019,000	2,281,472
42	Dec 21, 2025 20:49	4,762	35,162,442	13,207,000	2,031,000	2,281,472

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