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 listJul 14, 2021 11:12

Andrey Tsvetkov

Score: 5,720

Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 14, 2021 11:13	5,669	33,255,042	16,125,000	2,015,000	2,523,136
2	Jul 14, 2021 11:12	5,674	48,086,135	16,141,000	2,017,000	2,531,328
3	Jul 14, 2021 11:13	5,674	48,970,407	16,140,000	2,017,000	2,334,720
4	Jul 14, 2021 11:12	5,678	40,621,183	15,141,000	3,028,000	2,387,968
5	Jul 14, 2021 11:12	5,681	39,397,333	15,150,000	3,030,000	2,334,720
6	Jul 14, 2021 11:12	5,681	42,252,202	15,149,000	3,029,000	2,334,720
7	Jul 14, 2021 11:12	5,683	49,856,741	16,166,000	2,020,000	2,326,528
8	Jul 14, 2021 11:12	5,683	44,988,337	15,154,000	3,030,000	2,326,528
9	Jul 14, 2021 11:12	5,684	42,148,761	15,158,000	3,031,000	2,334,720
10	Jul 14, 2021 11:12	5,685	44,227,435	15,160,000	3,032,000	2,519,040
11	Jul 14, 2021 11:12	5,686	45,826,596	16,174,000	2,021,000	2,527,232
12	Jul 14, 2021 11:12	5,686	40,421,203	15,163,000	3,032,000	2,519,040
13	Jul 14, 2021 11:12	5,688	44,604,300	15,169,000	3,033,000	2,334,720
14	Jul 14, 2021 11:12	5,689	41,733,626	15,172,000	3,034,000	2,334,720
15	Jul 14, 2021 11:12	5,690	38,593,297	16,186,000	2,023,000	2,334,720
16	Jul 14, 2021 11:12	5,691	35,336,407	16,189,000	2,023,000	2,523,136
17	Jul 14, 2021 11:13	5,693	38,532,679	16,193,000	2,024,000	2,330,624
18	Jul 14, 2021 11:12	5,694	38,001,825	16,196,000	2,024,000	2,326,528
19	Jul 14, 2021 11:12	5,694	43,764,915	16,198,000	2,024,000	2,392,064
20	Jul 14, 2021 11:12	5,695	40,234,390	16,199,000	2,024,000	2,527,232
21	Jul 14, 2021 11:12	5,696	43,047,434	15,189,000	3,037,000	2,334,720
22	Jul 14, 2021 11:12	5,697	44,388,444	16,206,000	2,025,000	2,531,328
23	Jul 14, 2021 11:13	5,697	38,486,897	15,191,000	3,038,000	2,334,720
24	Jul 14, 2021 11:12	5,699	43,259,723	16,212,000	2,026,000	2,330,624
25	Jul 14, 2021 11:12	5,701	33,765,025	15,204,000	3,040,000	2,334,720
26	Jul 14, 2021 11:12	5,701	40,277,824	15,204,000	3,040,000	2,334,720
27	Jul 14, 2021 11:12	5,701	43,141,720	15,204,000	3,040,000	2,334,720
28	Jul 14, 2021 11:12	5,701	40,834,517	15,202,000	3,040,000	2,334,720
29	Jul 14, 2021 11:12	5,702	38,594,634	16,219,000	2,027,000	2,523,136
30	Jul 14, 2021 11:12	5,702	48,670,409	16,219,000	2,027,000	2,527,232
31	Jul 14, 2021 11:12	5,703	35,641,260	16,222,000	2,027,000	2,531,328
32	Jul 14, 2021 11:12	5,704	47,037,652	15,210,000	3,042,000	2,334,720
33	Jul 14, 2021 11:12	5,704	43,384,978	16,224,000	2,028,000	2,523,136
34	Jul 14, 2021 11:12	5,705	81,588,801	18,255,373	0	2,228,224
35	Jul 14, 2021 11:12	5,708	45,758,836	16,235,000	2,029,000	2,334,720
36	Jul 14, 2021 11:12	5,709	42,139,272	16,239,000	2,029,000	2,334,720
37	Jul 14, 2021 11:12	5,710	33,970,204	16,242,000	2,030,000	2,531,328
38	Jul 14, 2021 11:12	5,713	79,581,527	18,281,529	0	2,236,416
39	Jul 14, 2021 11:13	5,716	46,890,168	15,244,000	3,048,000	2,523,136
40	Jul 14, 2021 11:12	5,718	39,718,560	15,247,000	3,049,000	2,527,232
41	Jul 14, 2021 11:13	5,718	46,889,271	15,248,000	3,049,000	2,527,232
42	Jul 14, 2021 11:12	5,719	42,581,819	15,250,000	3,050,000	2,334,720
43	Jul 14, 2021 11:12	5,720	39,746,381	15,254,000	3,050,000	2,334,720
44	Jul 14, 2021 11:12	5,721	46,078,654	15,256,000	3,051,000	2,334,720
45	Jul 14, 2021 11:12	5,722	40,335,132	15,258,000	3,051,000	2,334,720
46	Jul 14, 2021 11:13	5,722	41,026,807	16,275,000	2,034,000	2,527,232
47	Jul 14, 2021 11:12	5,725	41,140,104	15,267,000	3,053,000	2,334,720
48	Jul 14, 2021 11:12	5,725	59,770,551	18,319,241	0	2,220,032
49	Jul 14, 2021 11:12	5,725	41,143,034	16,284,000	2,035,000	2,334,720
50	Jul 14, 2021 11:13	5,726	64,718,438	18,323,403	0	2,232,320
51	Jul 14, 2021 11:12	5,726	82,451,704	18,323,466	0	2,224,128
52	Jul 14, 2021 11:12	5,727	40,895,164	16,291,000	2,036,000	2,519,040
53	Jul 14, 2021 11:12	5,727	38,015,960	15,272,000	3,054,000	2,519,040
54	Jul 14, 2021 11:12	5,728	35,501,870	16,295,000	2,036,000	2,527,232
55	Jul 14, 2021 11:12	5,728	38,605,940	16,295,000	2,036,000	2,334,720
56	Jul 14, 2021 11:12	5,729	47,358,723	16,296,000	2,037,000	2,375,680
57	Jul 14, 2021 11:12	5,729	43,385,271	15,277,000	3,055,000	2,531,328
58	Jul 14, 2021 11:13	5,730	37,710,596	14,262,000	4,074,000	2,334,720
59	Jul 14, 2021 11:12	5,730	50,889,493	14,261,000	4,074,000	2,527,232
60	Jul 14, 2021 11:13	5,730	40,913,717	16,300,000	2,037,000	2,334,720
61	Jul 14, 2021 11:12	5,732	45,128,777	16,304,000	2,038,000	2,531,328
62	Jul 14, 2021 11:12	5,733	44,769,103	16,307,000	2,038,000	2,531,328
63	Jul 14, 2021 11:12	5,738	96,102,984	18,360,237	0	2,248,704
64	Jul 14, 2021 11:12	5,738	77,573,338	18,363,035	0	2,228,224
65	Jul 14, 2021 11:12	5,738	40,622,918	16,320,000	2,040,000	2,334,720
66	Jul 14, 2021 11:12	5,741	44,181,866	16,329,000	2,041,000	2,334,720
67	Jul 14, 2021 11:12	5,741	92,104,301	18,370,105	0	2,236,416
68	Jul 14, 2021 11:12	5,743	46,312,978	17,356,000	1,020,000	2,334,720
69	Jul 14, 2021 11:12	5,743	47,066,775	17,358,000	1,021,000	2,334,720
70	Jul 14, 2021 11:12	5,743	83,933,066	18,378,233	0	2,224,128
71	Jul 14, 2021 11:13	5,744	63,912,368	18,381,453	0	2,236,416
72	Jul 14, 2021 11:12	5,744	88,383,006	18,381,563	0	2,228,224
73	Jul 14, 2021 11:12	5,749	46,806,252	16,353,000	2,044,000	2,527,232
74	Jul 14, 2021 11:12	5,750	84,196,032	18,399,859	0	2,224,128
75	Jul 14, 2021 11:12	5,751	42,450,681	15,336,000	3,067,000	2,527,232
76	Jul 14, 2021 11:13	5,769	67,810,471	18,459,740	0	2,232,320
77	Jul 14, 2021 11:12	5,772	56,038,061	18,471,006	0	2,240,512
78	Jul 14, 2021 11:12	5,786	58,814,958	18,515,562	0	2,228,224
79	Jul 14, 2021 11:12	5,797	80,181,957	18,551,637	0	2,236,416
80	Jul 14, 2021 11:12	5,830	83,237,200	18,656,175	0	2,224,128
81	Jul 14, 2021 11:12	5,861	92,283,904	18,755,895	0	2,236,416
82	Jul 14, 2021 11:12	5,873	77,648,858	18,794,349	0	2,228,224
83	Jul 14, 2021 11:12	6,138	83,514,316	19,640,633	0	2,215,936
84	Jul 14, 2021 11:12	6,338	97,101,508	20,280,444	0	2,256,896

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