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 22, 2026 04:11

Josu San MartinScore: 4,468Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 22, 2026 19:55	4,425	34,642,085	12,137,000	2,022,000	2,404,352
2	Apr 12, 2026 23:01	4,429	30,294,877	12,149,000	2,024,000	2,404,352
3	Apr 12, 2026 23:02	4,442	32,577,230	12,183,000	2,030,000	2,408,448
4	Apr 12, 2026 23:02	4,443	28,983,833	13,203,000	1,015,000	2,285,568
5	Jan 22, 2026 03:59	4,445	32,118,175	13,208,000	1,016,000	2,400,256
6	Jan 22, 2026 03:59	4,447	26,544,056	13,215,000	1,016,000	2,400,256
7	Apr 12, 2026 23:02	4,447	37,193,165	13,213,000	1,016,000	2,285,568
8	Apr 12, 2026 23:01	4,449	34,667,580	13,220,000	1,016,000	2,396,160
9	Apr 13, 2026 03:13	4,450	40,459,927	13,222,000	1,017,000	2,412,544
10	Jan 23, 2026 01:02	4,451	30,374,486	13,226,000	1,017,000	2,281,472
11	Apr 13, 2026 03:13	4,451	29,691,897	12,208,000	2,034,000	2,285,568
12	Jan 22, 2026 19:55	4,452	41,420,109	14,245,000	0	2,498,560
13	Apr 13, 2026 03:13	4,453	29,871,035	12,213,000	2,035,000	2,285,568
14	Jan 23, 2026 01:02	4,454	30,031,635	12,216,000	2,036,000	2,412,544
15	Jan 23, 2026 01:02	4,454	32,832,159	13,236,000	1,018,000	2,404,352
16	Jan 22, 2026 03:59	4,455	34,760,193	13,238,000	1,018,000	2,285,568
17	Apr 13, 2026 03:13	4,455	34,282,285	13,239,000	1,018,000	2,396,160
18	Jan 22, 2026 19:55	4,458	34,097,495	13,246,000	1,018,000	2,285,568
19	Apr 13, 2026 03:13	4,458	31,775,507	13,248,000	1,019,000	2,285,568
20	Jan 23, 2026 01:02	4,460	35,431,374	12,233,000	2,038,000	2,285,568
21	Apr 12, 2026 23:02	4,466	43,234,267	13,271,000	1,020,000	2,408,448
22	Jan 22, 2026 19:55	4,466	40,242,138	13,270,000	1,020,000	2,400,256
23	Jan 22, 2026 19:55	4,466	48,760,020	13,270,000	1,020,000	2,285,568
24	Apr 13, 2026 03:13	4,467	29,490,764	14,295,000	0	2,285,568
25	Apr 12, 2026 23:08	4,467	30,745,642	13,274,000	1,021,000	2,400,256
26	Jan 23, 2026 01:02	4,468	35,355,718	14,296,000	0	2,404,352
27	Apr 13, 2026 03:13	4,469	34,057,396	13,279,000	1,021,000	2,285,568
28	Apr 13, 2026 03:13	4,469	31,936,660	12,259,000	2,043,000	2,281,472
29	Apr 12, 2026 23:11	4,472	31,954,150	13,287,000	1,022,000	2,285,568
30	Apr 12, 2026 23:08	4,473	32,092,619	13,291,000	1,022,000	2,285,568
31	Jan 22, 2026 19:55	4,473	31,806,046	14,312,000	0	2,285,568
32	Apr 13, 2026 03:13	4,473	30,889,949	12,269,000	2,044,000	2,285,568
33	Apr 12, 2026 23:11	4,473	36,641,141	12,269,000	2,044,000	2,285,568
34	Apr 12, 2026 23:01	4,478	31,629,545	13,307,000	1,023,000	2,400,256
35	Jan 23, 2026 01:02	4,479	35,939,304	14,334,000	0	2,285,568
36	Apr 12, 2026 23:11	4,483	29,921,929	12,297,000	2,049,000	2,285,568
37	Apr 12, 2026 23:02	4,486	31,725,698	13,329,000	1,025,000	2,408,448
38	Apr 13, 2026 03:13	4,490	40,319,569	13,341,000	1,026,000	2,396,160
39	Apr 12, 2026 23:02	4,498	28,699,444	14,394,000	0	2,400,256
40	Apr 12, 2026 23:08	4,518	35,091,733	13,426,000	1,032,000	2,408,448
41	Apr 12, 2026 23:09	4,523	27,783,559	14,473,000	0	2,404,352
42	Apr 12, 2026 23:09	4,536	34,790,213	14,514,000	0	2,285,568
43	Apr 13, 2026 03:13	4,560	33,928,832	13,550,000	1,042,000	2,285,568
44	Apr 12, 2026 23:09	4,569	33,883,745	13,578,000	1,044,000	2,404,352
45	Jan 22, 2026 04:06	4,642	34,084,315	13,863,000	990,000	2,273,280
46	Jan 22, 2026 04:11	4,653	35,499,589	12,904,000	1,985,000	2,273,280
47	Jan 22, 2026 04:06	4,656	32,244,428	12,913,000	1,986,000	2,273,280
48	Jan 22, 2026 04:11	4,658	30,910,568	13,914,000	993,000	2,400,256
49	Jan 22, 2026 04:06	4,674	36,209,938	11,966,000	2,991,000	2,273,280
50	Apr 13, 2026 03:13	4,680	45,246,888	13,978,000	998,000	2,400,256
51	Jan 22, 2026 04:11	4,693	38,323,840	13,014,000	2,002,000	2,273,280

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