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.

Back to listJan 6, 2026 09:01

Rajarshi BasuScore: 4,377Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 6, 2026 09:25	4,343	36,735,305	13,899,000	0	2,277,376
2	Jan 6, 2026 09:25	4,348	30,561,560	12,921,000	993,000	2,396,160
3	Jan 6, 2026 09:25	4,349	38,921,628	11,929,000	1,988,000	2,400,256
4	Jan 6, 2026 09:25	4,352	29,891,092	12,933,000	994,000	2,277,376
5	Jan 6, 2026 09:27	4,352	32,089,626	12,933,000	994,000	2,277,376
6	Jan 6, 2026 09:25	4,353	28,120,015	12,936,000	995,000	2,408,448
7	Jan 6, 2026 09:25	4,356	30,727,414	12,944,000	995,000	2,404,352
8	Jan 6, 2026 09:27	4,356	32,097,198	11,949,000	1,991,000	2,277,376
9	Jan 6, 2026 09:27	4,358	36,003,025	11,955,000	1,992,000	2,277,376
10	Jan 6, 2026 09:25	4,360	34,959,075	11,960,000	1,993,000	2,277,376
11	Jan 6, 2026 09:25	4,361	47,353,507	11,962,000	1,993,000	2,277,376
12	Jan 6, 2026 09:25	4,361	31,312,480	12,960,000	996,000	2,396,160
13	Jan 6, 2026 09:25	4,361	31,169,357	12,959,000	996,000	2,396,160
14	Jan 6, 2026 09:25	4,362	34,972,874	12,961,000	997,000	2,277,376
15	Jan 6, 2026 09:27	4,363	30,298,831	11,967,000	1,994,000	2,277,376
16	Jan 6, 2026 09:25	4,364	36,932,330	12,969,000	997,000	2,396,160
17	Jan 6, 2026 09:01	4,364	29,619,857	11,970,000	1,995,000	2,277,376
18	Jan 6, 2026 09:27	4,367	30,308,276	12,977,000	998,000	2,404,352
19	Jan 6, 2026 09:25	4,369	28,957,268	12,984,000	998,000	2,396,160
20	Jan 6, 2026 09:01	4,369	33,033,591	12,983,000	998,000	2,277,376
21	Jan 6, 2026 09:25	4,373	32,748,876	12,994,000	999,000	2,277,376
22	Jan 6, 2026 09:25	4,374	42,652,131	12,997,000	999,000	2,277,376
23	Jan 6, 2026 09:25	4,374	35,460,162	12,999,000	999,000	2,277,376
24	Jan 6, 2026 09:01	4,374	39,961,287	11,997,000	1,999,000	2,392,064
25	Jan 6, 2026 09:27	4,377	29,427,652	13,005,000	1,000,000	2,404,352
26	Jan 6, 2026 09:25	4,377	32,972,105	13,007,000	1,000,000	2,396,160
27	Jan 6, 2026 09:25	4,378	29,507,428	12,007,000	2,001,000	2,277,376
28	Jan 6, 2026 09:25	4,378	36,883,777	13,009,000	1,000,000	2,277,376
29	Jan 6, 2026 09:27	4,378	32,119,719	13,011,000	1,000,000	2,396,160
30	Jan 6, 2026 09:27	4,378	31,171,575	13,011,000	1,000,000	2,277,376
31	Jan 6, 2026 09:01	4,379	35,357,017	12,012,000	2,002,000	2,510,848
32	Jan 6, 2026 09:25	4,382	34,012,316	13,021,000	1,001,000	2,400,256
33	Jan 6, 2026 09:25	4,382	35,124,856	12,020,000	2,003,000	2,404,352
34	Jan 6, 2026 09:25	4,382	34,611,293	13,020,000	1,001,000	2,277,376
35	Jan 6, 2026 09:25	4,382	32,552,625	12,020,000	2,003,000	2,277,376
36	Jan 6, 2026 09:25	4,385	31,235,230	12,029,000	2,004,000	2,396,160
37	Jan 6, 2026 09:25	4,386	33,029,684	13,032,000	1,002,000	2,392,064
38	Jan 6, 2026 09:27	4,386	34,675,187	12,030,000	2,005,000	2,396,160
39	Jan 6, 2026 09:25	4,387	28,241,529	12,034,000	2,005,000	2,404,352
40	Jan 6, 2026 09:01	4,391	40,705,701	13,048,000	1,003,000	2,400,256
41	Jan 6, 2026 09:27	4,391	31,084,197	13,049,000	1,003,000	2,400,256
42	Jan 6, 2026 09:01	4,396	40,847,563	12,059,000	2,009,000	2,400,256
43	Jan 6, 2026 09:01	4,407	32,122,909	14,101,000	0	2,277,376
44	Jan 6, 2026 09:27	4,407	31,534,715	12,088,000	2,014,000	2,277,376
45	Jan 6, 2026 09:01	4,511	39,715,101	13,404,000	1,031,000	2,400,256
46	Jan 6, 2026 09:25	4,524	47,296,086	13,442,000	1,034,000	2,490,368
47	Jan 6, 2026 09:27	4,567	30,980,932	13,571,000	1,043,000	2,396,160
48	Jan 6, 2026 09:01	4,788	33,193,505	15,322,000	0	2,392,064

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