TopK

Find the sum of the 100 largest values in a stream of binary integers as fast as possible.

Input: 100 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: The uint64 sum of the top 100 greatest values, printed as a decimal string.

Restrictions:60s512Mb 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 13, 2021 11:26

Andrey TsvetkovScore: 95,392Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 13, 2021 11:24	94,827	65,899,277	33,082,000	2,004,000	2,531,328
2	Jul 13, 2021 11:24	94,884	60,642,453	33,101,000	2,006,000	2,523,136
3	Jul 13, 2021 11:24	94,886	62,509,171	33,102,000	2,006,000	2,523,136
4	Jul 13, 2021 13:07	94,889	66,110,848	33,103,000	2,006,000	2,514,944
5	Jul 13, 2021 11:24	94,897	63,387,531	32,103,000	3,009,000	2,527,232
6	Jul 13, 2021 11:26	94,981	64,540,856	33,135,000	2,008,000	2,387,968
7	Jul 13, 2021 11:26	94,997	64,412,294	33,141,000	2,008,000	2,523,136
8	Jul 13, 2021 11:26	95,000	61,748,121	33,142,000	2,008,000	2,531,328
9	Jul 13, 2021 13:07	95,005	56,549,147	32,139,000	3,013,000	2,334,720
10	Jul 13, 2021 11:24	95,027	56,571,350	33,151,000	2,009,000	2,334,720
11	Jul 13, 2021 13:07	95,027	62,611,653	33,151,000	2,009,000	2,334,720
12	Jul 13, 2021 11:24	95,076	66,427,778	33,168,000	2,010,000	2,527,232
13	Jul 13, 2021 13:07	95,100	57,690,307	32,171,000	3,016,000	2,334,720
14	Jul 13, 2021 11:24	95,259	60,130,385	33,232,000	2,014,000	2,334,720
15	Jul 13, 2021 13:07	95,322	69,004,331	32,246,000	3,023,000	2,334,720
16	Jul 13, 2021 11:26	95,354	59,217,665	32,257,000	3,024,000	2,334,720
17	Jul 13, 2021 11:26	95,357	58,566,409	32,258,000	3,024,000	2,334,720
18	Jul 13, 2021 13:07	95,359	56,449,776	32,259,000	3,024,000	2,535,424
19	Jul 13, 2021 11:26	95,392	55,738,801	32,270,000	3,025,000	2,523,136
20	Jul 13, 2021 11:24	95,438	56,471,252	33,295,000	2,017,000	2,527,232
21	Jul 13, 2021 11:26	95,454	60,252,166	33,300,000	2,018,000	2,523,136
22	Jul 13, 2021 11:26	95,522	63,853,157	33,324,000	2,019,000	2,527,232
23	Jul 13, 2021 13:07	95,530	58,856,475	33,327,000	2,019,000	2,523,136
24	Jul 13, 2021 11:26	95,651	54,417,103	34,380,000	1,011,000	2,334,720
25	Jul 13, 2021 13:07	96,897	63,403,988	33,861,000	1,991,000	2,334,720
26	Jul 13, 2021 11:24	96,986	60,538,770	32,895,000	2,990,000	2,334,720
27	Jul 13, 2021 11:26	98,132	117,320,100	36,308,791	0	2,203,648
28	Jul 13, 2021 13:07	98,161	112,663,334	36,319,731	0	2,207,744
29	Jul 13, 2021 13:07	98,225	104,108,126	36,343,231	0	2,199,552
30	Jul 13, 2021 11:24	98,635	96,100,347	36,494,843	0	2,199,552
31	Jul 13, 2021 11:24	98,696	101,590,326	36,517,525	0	2,207,744
32	Jul 13, 2021 11:26	98,786	106,920,686	36,550,995	0	2,195,456
33	Jul 13, 2021 11:26	98,931	110,893,486	36,604,630	0	2,203,648
34	Jul 13, 2021 13:07	98,967	97,367,527	36,617,917	0	2,199,552
35	Jul 13, 2021 11:24	99,683	102,971,166	36,882,776	0	2,199,552
36	Jul 13, 2021 13:07	104,316	66,368,855	36,566,000	2,031,000	2,334,720

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