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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olliecrowScore: 4,347Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 28, 2026 10:05	4,319	26,074,099	12,834,000	987,000	2,498,560
2	Mar 28, 2026 10:11	4,330	47,205,568	12,867,000	989,000	2,277,376
3	Mar 28, 2026 10:08	4,332	26,883,454	12,872,000	990,000	2,277,376
4	Mar 28, 2026 10:04	4,333	29,130,343	13,867,000	0	2,494,464
5	Mar 28, 2026 10:04	4,334	31,567,502	12,879,000	990,000	2,490,368
6	Mar 28, 2026 10:09	4,336	31,137,899	12,884,000	991,000	2,502,656
7	Mar 28, 2026 10:07	4,336	29,947,503	12,883,000	991,000	2,486,272
8	Mar 28, 2026 10:05	4,337	36,447,617	12,886,000	991,000	2,498,560
9	Mar 28, 2026 10:08	4,337	33,082,657	12,888,000	991,000	2,490,368
10	Mar 28, 2026 10:09	4,338	40,910,266	13,883,000	0	2,277,376
11	Mar 28, 2026 10:08	4,338	28,347,950	12,889,000	991,000	2,277,376
12	Mar 28, 2026 10:04	4,340	43,052,764	12,897,000	992,000	2,277,376
13	Mar 28, 2026 10:04	4,340	33,562,774	13,888,000	0	2,494,464
14	Mar 28, 2026 10:04	4,340	38,893,724	12,896,000	992,000	2,490,368
15	Mar 28, 2026 10:11	4,340	40,758,264	13,888,000	0	2,494,464
16	Mar 28, 2026 10:08	4,340	25,918,480	12,896,000	992,000	2,277,376
17	Mar 28, 2026 10:10	4,342	26,029,603	12,903,000	992,000	2,277,376
18	Mar 28, 2026 10:08	4,342	32,151,345	13,895,000	0	2,490,368
19	Mar 28, 2026 10:04	4,343	40,045,920	13,899,000	0	2,498,560
20	Mar 28, 2026 10:05	4,343	29,551,828	12,905,000	992,000	2,498,560
21	Mar 28, 2026 10:08	4,345	34,267,837	12,911,000	993,000	2,277,376
22	Mar 28, 2026 10:05	4,347	38,259,805	13,911,000	0	2,494,464
23	Mar 28, 2026 10:04	4,347	29,218,234	12,917,000	993,000	2,506,752
24	Mar 28, 2026 10:08	4,347	38,708,785	12,917,000	993,000	2,494,464
25	Mar 28, 2026 10:07	4,348	32,196,816	12,919,000	993,000	2,506,752
26	Mar 28, 2026 10:08	4,348	37,188,206	12,919,000	993,000	2,277,376
27	Mar 28, 2026 10:08	4,349	34,882,194	12,924,000	994,000	2,277,376
28	Mar 28, 2026 10:05	4,350	29,691,497	12,927,000	994,000	2,535,424
29	Mar 28, 2026 10:07	4,350	38,003,462	12,927,000	994,000	2,494,464
30	Mar 28, 2026 10:08	4,350	29,560,950	12,927,000	994,000	2,490,368
31	Mar 28, 2026 10:04	4,350	29,423,451	12,925,000	994,000	2,277,376
32	Mar 28, 2026 10:10	4,351	30,523,273	12,930,000	994,000	2,277,376
33	Mar 28, 2026 10:10	4,352	40,331,208	12,931,000	994,000	2,277,376
34	Mar 28, 2026 10:07	4,353	29,908,697	11,939,000	1,989,000	2,494,464
35	Mar 28, 2026 10:11	4,355	28,271,158	12,942,000	995,000	2,277,376
36	Mar 28, 2026 10:09	4,359	29,694,962	12,954,000	996,000	2,277,376
37	Mar 28, 2026 10:08	4,360	29,741,903	12,955,000	996,000	2,277,376
38	Mar 28, 2026 10:07	4,365	27,290,488	12,972,000	997,000	2,277,376
39	Mar 28, 2026 10:08	4,368	28,643,210	12,981,000	998,000	2,535,424
40	Mar 28, 2026 10:04	4,369	33,868,343	11,983,000	1,997,000	2,277,376
41	Mar 28, 2026 10:05	4,369	34,144,782	12,982,000	998,000	2,277,376
42	Mar 28, 2026 10:09	4,504	37,448,149	13,384,000	1,029,000	2,498,560
43	Mar 28, 2026 10:09	4,539	32,613,502	13,489,000	1,037,000	2,502,656
44	Mar 28, 2026 10:09	4,551	30,014,403	13,524,000	1,040,000	2,273,280
45	Mar 28, 2026 10:07	4,577	38,685,256	13,601,000	1,046,000	2,277,376

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