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: 4,423Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 28, 2026 12:45	4,392	31,981,357	12,047,000	2,007,000	2,281,472
2	Mar 28, 2026 12:46	4,394	37,061,454	12,052,000	2,008,000	2,416,640
3	Mar 28, 2026 12:44	4,396	29,621,780	12,059,000	2,009,000	2,400,256
4	Mar 28, 2026 12:44	4,396	34,444,396	12,057,000	2,009,000	2,281,472
5	Mar 28, 2026 12:45	4,398	40,971,485	12,062,000	2,010,000	2,412,544
6	Mar 28, 2026 12:45	4,400	29,320,109	12,068,000	2,011,000	2,281,472
7	Mar 28, 2026 12:45	4,401	33,122,649	12,072,000	2,012,000	2,281,472
8	Mar 28, 2026 12:45	4,407	38,148,705	12,088,000	2,014,000	2,281,472
9	Mar 28, 2026 12:45	4,408	29,519,902	12,091,000	2,015,000	2,277,376
10	Mar 28, 2026 12:44	4,408	38,295,943	12,092,000	2,015,000	2,412,544
11	Mar 28, 2026 12:45	4,413	36,695,922	12,103,000	2,017,000	2,281,472
12	Mar 28, 2026 12:45	4,414	34,037,858	12,107,000	2,017,000	2,400,256
13	Mar 28, 2026 12:45	4,415	30,874,453	13,118,000	1,009,000	2,281,472
14	Mar 28, 2026 12:44	4,416	34,629,218	12,113,000	2,018,000	2,281,472
15	Mar 28, 2026 12:45	4,422	34,034,280	12,128,000	2,021,000	2,281,472
16	Mar 28, 2026 12:44	4,423	36,868,673	12,132,000	2,022,000	2,400,256
17	Mar 28, 2026 12:45	4,425	30,270,915	12,138,000	2,023,000	2,400,256
18	Mar 28, 2026 12:44	4,426	46,159,620	12,139,000	2,023,000	2,404,352
19	Mar 28, 2026 12:44	4,426	31,009,954	13,151,000	1,011,000	2,416,640
20	Mar 28, 2026 12:44	4,426	31,525,451	12,141,000	2,023,000	2,404,352
21	Mar 28, 2026 12:46	4,431	30,703,058	12,153,000	2,025,000	2,404,352
22	Mar 28, 2026 12:45	4,433	39,712,017	12,159,000	2,026,000	2,404,352
23	Mar 28, 2026 12:46	4,433	33,157,103	12,158,000	2,026,000	2,412,544
24	Mar 28, 2026 12:44	4,436	31,681,277	12,167,000	2,027,000	2,408,448
25	Mar 28, 2026 12:45	4,440	30,133,177	13,194,000	1,014,000	2,408,448
26	Mar 28, 2026 12:45	4,442	36,230,571	13,200,000	1,015,000	2,281,472
27	Mar 28, 2026 12:45	4,448	39,111,495	13,218,000	1,016,000	2,404,352
28	Mar 28, 2026 12:45	4,553	29,656,555	13,530,000	1,040,000	2,486,272
29	Mar 28, 2026 12:45	4,585	29,242,757	13,624,000	1,048,000	2,400,256
30	Mar 28, 2026 12:45	4,594	31,098,557	13,650,000	1,050,000	2,400,256

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