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: 4,467Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Dec 21, 2025 17:19	4,428	34,914,389	12,147,000	2,024,000	2,396,160
2	Dec 21, 2025 17:49	4,433	40,005,618	12,160,000	2,026,000	2,273,280
3	Dec 21, 2025 17:23	4,433	31,835,580	13,173,000	1,013,000	2,392,064
4	Dec 21, 2025 17:23	4,435	33,668,005	12,166,000	2,027,000	2,273,280
5	Dec 21, 2025 17:49	4,441	34,511,056	12,180,000	2,030,000	2,400,256
6	Dec 21, 2025 18:02	4,442	30,032,125	12,183,000	2,030,000	2,273,280
7	Dec 21, 2025 17:19	4,444	37,320,931	12,189,000	2,031,000	2,408,448
8	Dec 21, 2025 17:29	4,446	34,440,569	13,211,000	1,016,000	2,273,280
9	Dec 21, 2025 17:49	4,446	34,188,062	13,211,000	1,016,000	2,273,280
10	Dec 21, 2025 17:49	4,453	37,287,016	12,213,000	2,035,000	2,273,280
11	Dec 21, 2025 17:23	4,454	33,505,232	12,216,000	2,036,000	2,273,280
12	Dec 21, 2025 17:23	4,454	37,460,032	12,216,000	2,036,000	2,273,280
13	Dec 21, 2025 17:56	4,457	34,991,928	12,225,000	2,037,000	2,273,280
14	Dec 21, 2025 17:56	4,458	34,651,470	12,227,000	2,037,000	2,273,280
15	Dec 21, 2025 17:49	4,458	33,463,620	13,248,000	1,019,000	2,396,160
16	Dec 21, 2025 17:49	4,458	30,229,311	13,246,000	1,018,000	2,273,280
17	Dec 21, 2025 17:49	4,458	30,092,220	12,229,000	2,038,000	2,273,280
18	Dec 21, 2025 17:19	4,459	31,506,934	12,232,000	2,038,000	2,273,280
19	Dec 21, 2025 17:19	4,462	41,230,610	13,258,000	1,019,000	2,396,160
20	Dec 21, 2025 18:02	4,462	30,743,232	12,239,000	2,039,000	2,273,280
21	Dec 21, 2025 17:19	4,463	34,901,316	12,240,000	2,040,000	2,273,280
22	Dec 21, 2025 17:29	4,467	27,917,107	12,253,000	2,042,000	2,396,160
23	Dec 21, 2025 17:23	4,468	34,325,190	13,278,000	1,021,000	2,400,256
24	Dec 21, 2025 17:23	4,469	34,666,892	14,300,000	0	2,273,280
25	Dec 21, 2025 17:23	4,470	41,802,104	14,303,000	0	2,404,352
26	Dec 21, 2025 17:49	4,472	28,607,883	12,265,000	2,044,000	2,273,280
27	Dec 21, 2025 17:23	4,474	38,259,871	14,316,000	0	2,273,280
28	Dec 21, 2025 17:19	4,474	32,453,615	14,317,000	0	2,273,280
29	Dec 21, 2025 17:19	4,475	34,335,093	12,275,000	2,045,000	2,273,280
30	Dec 21, 2025 18:02	4,476	31,543,758	14,324,000	0	2,273,280
31	Dec 21, 2025 17:23	4,477	42,678,231	13,302,000	1,023,000	2,396,160
32	Dec 21, 2025 17:56	4,479	31,079,416	14,334,000	0	2,404,352
33	Dec 21, 2025 17:56	4,480	42,189,093	13,313,000	1,024,000	2,273,280
34	Dec 21, 2025 17:23	4,481	31,143,881	14,339,000	0	2,273,280
35	Dec 21, 2025 17:23	4,487	33,970,221	12,308,000	2,051,000	2,273,280
36	Dec 21, 2025 17:19	4,487	32,595,775	13,334,000	1,025,000	2,273,280
37	Dec 21, 2025 17:56	4,488	31,141,645	12,311,000	2,051,000	2,400,256
38	Dec 21, 2025 17:19	4,488	31,035,000	14,362,000	0	2,396,160
39	Dec 21, 2025 17:23	4,490	31,169,348	14,367,000	0	2,396,160
40	Dec 21, 2025 17:49	4,493	40,381,641	14,377,000	0	2,273,280
41	Dec 21, 2025 17:56	4,501	28,054,366	13,375,000	1,028,000	2,478,080
42	Dec 21, 2025 17:29	4,508	32,731,060	13,394,000	1,030,000	2,273,280

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