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 14, 2021 13:34

Yuriy LyfenkoScore: 88,605Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 14, 2021 13:36	87,119	556,789,918	30,220,000	2,014,000	2,326,528
2	Jul 14, 2021 13:36	87,173	557,351,864	29,231,000	3,023,000	2,326,528
3	Jul 14, 2021 13:36	87,527	555,035,735	31,373,000	1,012,000	2,519,040
4	Jul 14, 2021 13:34	87,532	560,577,171	31,375,000	1,012,000	2,326,528
5	Jul 14, 2021 13:36	87,778	554,412,651	31,464,000	1,014,000	2,330,624
6	Jul 14, 2021 13:34	87,886	560,516,106	30,486,000	2,032,000	2,326,528
7	Jul 14, 2021 13:36	87,895	554,835,926	31,505,000	1,016,000	2,326,528
8	Jul 14, 2021 13:34	87,895	554,413,035	31,505,000	1,016,000	2,519,040
9	Jul 14, 2021 13:36	88,000	560,063,294	30,525,000	2,035,000	2,506,752
10	Jul 14, 2021 13:36	88,054	560,388,366	32,580,000	0	2,510,848
11	Jul 14, 2021 13:36	88,105	565,113,026	31,581,000	1,018,000	2,330,624
12	Jul 14, 2021 13:36	88,130	562,757,086	30,632,000	1,976,000	2,326,528
13	Jul 14, 2021 13:36	88,173	558,898,979	31,605,000	1,019,000	2,326,528
14	Jul 14, 2021 13:36	88,422	560,193,830	30,734,000	1,982,000	2,326,528
15	Jul 14, 2021 13:34	88,465	559,504,948	29,757,000	2,975,000	2,330,624
16	Jul 14, 2021 13:34	88,491	590,609,416	32,741,770	0	2,248,704
17	Jul 14, 2021 13:36	88,524	561,562,177	30,769,000	1,985,000	2,326,528
18	Jul 14, 2021 13:36	88,586	562,946,253	31,784,000	993,000	2,330,624
19	Jul 14, 2021 13:34	88,605	561,059,955	29,804,000	2,980,000	2,326,528
20	Jul 14, 2021 13:34	88,608	557,525,795	30,798,000	1,987,000	2,375,680
21	Jul 14, 2021 13:34	88,631	592,265,040	32,793,465	0	2,301,952
22	Jul 14, 2021 13:36	88,712	586,531,524	32,823,398	0	2,248,704
23	Jul 14, 2021 13:36	88,721	589,033,614	32,826,710	0	2,179,072
24	Jul 14, 2021 13:36	88,824	563,028,106	30,874,000	1,991,000	2,330,624
25	Jul 14, 2021 13:36	88,837	597,935,287	32,869,859	0	2,306,048
26	Jul 14, 2021 13:36	89,041	558,857,942	30,949,000	1,996,000	2,326,528
27	Jul 14, 2021 13:36	89,081	565,076,882	30,963,000	1,997,000	2,326,528
28	Jul 14, 2021 13:36	89,105	560,202,956	29,972,000	2,997,000	2,326,528
29	Jul 14, 2021 13:34	89,138	559,867,283	30,983,000	1,998,000	2,330,624
30	Jul 14, 2021 13:34	89,308	560,427,394	30,040,000	3,004,000	2,326,528
31	Jul 14, 2021 13:36	89,319	555,864,485	30,044,000	3,004,000	2,326,528
32	Jul 14, 2021 13:36	89,346	607,035,516	33,057,981	0	2,301,952
33	Jul 14, 2021 13:36	89,544	589,575,650	33,131,388	0	2,252,800
34	Jul 14, 2021 13:34	89,578	557,146,815	31,136,000	2,008,000	2,326,528
35	Jul 14, 2021 13:36	89,660	592,622,546	33,174,023	0	2,248,704
36	Jul 14, 2021 13:34	89,950	594,071,034	33,281,427	0	2,252,800

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