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: 4,346Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 19, 2026 20:10	4,328	29,176,029	13,848,000	0	2,531,328
2	Mar 10, 2026 06:11	4,332	33,124,089	12,873,000	990,000	2,273,280
3	Mar 19, 2026 20:32	4,332	32,255,506	12,873,000	990,000	2,273,280
4	Mar 10, 2026 06:11	4,333	32,027,115	12,876,000	990,000	2,273,280
5	Mar 19, 2026 20:37	4,333	36,675,004	12,876,000	990,000	2,273,280
6	Mar 19, 2026 20:37	4,335	27,035,111	12,882,000	990,000	2,273,280
7	Mar 19, 2026 20:32	4,336	28,906,451	12,883,000	991,000	2,531,328
8	Mar 19, 2026 20:10	4,336	32,455,538	12,885,000	991,000	2,273,280
9	Mar 10, 2026 06:11	4,336	41,910,353	12,885,000	991,000	2,494,464
10	Mar 10, 2026 06:11	4,337	39,774,630	12,888,000	991,000	2,273,280
11	Mar 19, 2026 20:32	4,338	37,114,246	13,881,000	0	2,498,560
12	Mar 10, 2026 06:11	4,339	31,592,071	12,894,000	991,000	2,486,272
13	Mar 19, 2026 20:32	4,340	45,457,009	12,897,000	992,000	2,273,280
14	Mar 10, 2026 06:15	4,341	37,229,639	12,900,000	992,000	2,494,464
15	Mar 19, 2026 20:10	4,341	31,190,999	12,899,000	992,000	2,273,280
16	Mar 19, 2026 20:34	4,341	43,905,221	12,899,000	992,000	2,494,464
17	Mar 19, 2026 20:33	4,341	30,847,161	12,898,000	992,000	2,273,280
18	Mar 19, 2026 20:32	4,341	40,457,384	12,900,000	992,000	2,273,280
19	Mar 19, 2026 20:32	4,341	40,855,668	12,898,000	992,000	2,273,280
20	Mar 19, 2026 20:37	4,342	39,638,656	12,902,000	992,000	2,273,280
21	Mar 13, 2026 04:15	4,342	42,096,266	12,901,000	992,000	2,273,280
22	Mar 10, 2026 06:11	4,344	36,519,285	11,915,000	1,985,000	2,498,560
23	Mar 19, 2026 20:37	4,345	31,989,488	13,904,000	0	2,273,280
24	Mar 10, 2026 06:15	4,346	31,937,606	12,914,000	993,000	2,273,280
25	Mar 19, 2026 20:10	4,346	35,482,940	12,913,000	993,000	2,273,280
26	Mar 19, 2026 20:37	4,348	29,105,028	12,921,000	993,000	2,494,464
27	Mar 10, 2026 06:11	4,348	36,859,931	12,920,000	993,000	2,273,280
28	Mar 10, 2026 06:11	4,348	31,569,268	12,921,000	993,000	2,273,280
29	Mar 13, 2026 04:15	4,348	30,543,050	12,920,000	993,000	2,494,464
30	Mar 19, 2026 20:10	4,348	32,011,616	12,921,000	993,000	2,273,280
31	Mar 19, 2026 20:32	4,349	32,581,843	12,922,000	994,000	2,273,280
32	Mar 19, 2026 20:32	4,350	30,528,291	12,925,000	994,000	2,494,464
33	Mar 19, 2026 20:37	4,353	36,718,225	12,935,000	995,000	2,273,280
34	Mar 19, 2026 20:33	4,355	34,687,709	12,942,000	995,000	2,494,464
35	Mar 19, 2026 20:37	4,355	28,309,336	12,941,000	995,000	2,490,368
36	Mar 19, 2026 20:32	4,357	31,273,860	12,946,000	995,000	2,498,560
37	Mar 13, 2026 04:15	4,360	27,675,304	12,955,000	996,000	2,498,560
38	Mar 19, 2026 20:33	4,362	29,512,605	12,961,000	997,000	2,273,280
39	Mar 19, 2026 20:34	4,365	31,088,915	12,971,000	997,000	2,494,464
40	Mar 10, 2026 06:11	4,365	30,357,030	12,971,000	997,000	2,494,464
41	Mar 19, 2026 20:10	4,367	31,761,253	12,977,000	998,000	2,498,560
42	Mar 19, 2026 20:34	4,373	28,459,363	12,993,000	999,000	2,273,280
43	Mar 10, 2026 06:15	4,382	26,032,734	12,020,000	2,003,000	2,269,184
44	Mar 19, 2026 20:37	4,392	37,695,699	13,050,000	1,003,000	2,502,656
45	Mar 19, 2026 20:37	4,460	41,268,762	14,273,000	0	2,490,368
46	Mar 19, 2026 20:10	4,561	32,317,535	14,596,000	0	2,273,280
47	Mar 19, 2026 20:10	4,603	33,752,903	13,678,000	1,052,000	2,498,560
48	Mar 19, 2026 20:10	4,786	39,013,535	13,401,000	1,914,000	2,277,376

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