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: 4,344Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 28, 2026 13:14	4,333	30,711,455	12,877,000	990,000	2,494,464
2	Mar 28, 2026 13:13	4,333	30,894,355	11,885,000	1,980,000	2,490,368
3	Mar 28, 2026 13:12	4,335	40,942,213	12,881,000	990,000	2,490,368
4	Mar 28, 2026 13:13	4,337	28,293,626	11,895,000	1,982,000	2,494,464
5	Mar 28, 2026 13:12	4,337	30,729,030	12,887,000	991,000	2,281,472
6	Mar 28, 2026 13:13	4,337	28,877,988	12,888,000	991,000	2,281,472
7	Mar 28, 2026 13:13	4,338	32,489,905	12,892,000	991,000	2,269,184
8	Mar 28, 2026 13:13	4,339	29,194,934	12,895,000	991,000	2,494,464
9	Mar 28, 2026 13:14	4,339	40,005,704	12,894,000	991,000	2,498,560
10	Mar 28, 2026 13:14	4,340	30,629,233	12,897,000	992,000	2,498,560
11	Mar 28, 2026 13:13	4,341	45,129,333	12,900,000	992,000	2,494,464
12	Mar 28, 2026 13:14	4,341	35,100,339	12,900,000	992,000	2,281,472
13	Mar 28, 2026 13:13	4,343	39,464,561	13,898,000	0	2,281,472
14	Mar 28, 2026 13:13	4,343	28,098,980	12,907,000	992,000	2,281,472
15	Mar 28, 2026 13:13	4,344	29,301,858	13,900,000	0	2,502,656
16	Mar 28, 2026 13:12	4,344	29,322,869	13,902,000	0	2,281,472
17	Mar 28, 2026 13:14	4,345	28,127,488	12,911,000	993,000	2,281,472
18	Mar 28, 2026 13:13	4,346	34,753,440	12,913,000	993,000	2,281,472
19	Mar 28, 2026 13:14	4,347	38,804,297	12,916,000	993,000	2,490,368
20	Mar 28, 2026 13:13	4,347	27,232,313	12,918,000	993,000	2,486,272
21	Mar 28, 2026 13:13	4,348	34,838,708	12,919,000	993,000	2,486,272
22	Mar 28, 2026 13:13	4,348	28,187,730	13,912,000	0	2,281,472
23	Mar 28, 2026 13:12	4,348	28,099,512	12,919,000	993,000	2,494,464
24	Mar 28, 2026 13:13	4,349	34,433,244	12,922,000	994,000	2,281,472
25	Mar 28, 2026 13:13	4,353	27,154,374	12,936,000	995,000	2,281,472
26	Mar 28, 2026 13:12	4,358	36,805,799	12,948,000	996,000	2,281,472
27	Mar 28, 2026 13:13	4,364	35,722,204	12,968,000	997,000	2,498,560
28	Mar 28, 2026 13:12	4,365	27,263,952	11,974,000	1,995,000	2,490,368
29	Mar 28, 2026 13:13	4,366	29,753,601	12,974,000	998,000	2,281,472
30	Mar 28, 2026 13:13	4,385	31,047,785	13,030,000	1,002,000	2,281,472

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