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 13:58

Yuriy LyfenkoScore: 107,278Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 13, 2021 13:19	106,673	62,179,680	38,457,000	1,012,000	2,334,720
2	Jul 13, 2021 13:58	106,741	61,511,361	37,469,000	2,025,000	2,523,136
3	Jul 13, 2021 13:19	106,757	64,101,021	38,488,000	1,012,000	2,519,040
4	Jul 13, 2021 13:58	106,789	60,183,967	38,499,000	1,013,000	2,334,720
5	Jul 13, 2021 13:58	106,803	64,081,911	37,491,000	2,026,000	2,334,720
6	Jul 13, 2021 13:19	107,003	66,245,968	38,576,000	1,015,000	2,383,872
7	Jul 13, 2021 13:19	107,005	67,083,639	38,577,000	1,015,000	2,527,232
8	Jul 13, 2021 13:58	107,008	64,260,042	37,563,000	2,030,000	2,334,720
9	Jul 13, 2021 13:19	107,057	69,952,123	38,596,000	1,015,000	2,527,232
10	Jul 13, 2021 13:58	107,108	67,054,147	37,598,000	2,032,000	2,334,720
11	Jul 13, 2021 13:58	107,214	66,087,254	38,652,000	1,017,000	2,334,720
12	Jul 13, 2021 13:19	107,219	66,151,794	38,654,000	1,017,000	2,523,136
13	Jul 13, 2021 13:19	107,259	63,907,190	38,669,000	1,017,000	2,383,872
14	Jul 13, 2021 13:58	107,278	67,045,602	38,676,000	1,017,000	2,334,720
15	Jul 13, 2021 13:58	107,281	69,625,167	38,677,000	1,017,000	2,334,720
16	Jul 13, 2021 13:58	107,741	67,918,242	37,871,000	1,993,000	2,334,720
17	Jul 13, 2021 13:19	107,749	68,996,170	37,874,000	1,993,000	2,334,720
18	Jul 13, 2021 13:19	107,819	71,123,916	38,896,000	997,000	2,519,040
19	Jul 13, 2021 14:51	109,284	98,916,225	40,435,137	0	2,187,264
20	Jul 13, 2021 13:58	109,421	106,256,058	40,485,719	0	2,183,168
21	Jul 13, 2021 13:19	109,465	112,969,047	40,502,104	0	2,187,264
22	Jul 13, 2021 13:19	109,487	112,063,096	40,510,232	0	2,187,264
23	Jul 13, 2021 13:58	109,504	121,399,685	40,516,406	0	2,306,048
24	Jul 13, 2021 14:51	109,549	100,883,243	40,533,104	0	2,179,072
25	Jul 13, 2021 14:51	109,869	101,295,907	40,651,501	0	2,179,072
26	Jul 13, 2021 13:19	109,871	109,984,518	40,652,106	0	2,183,168
27	Jul 13, 2021 13:58	110,023	92,319,233	40,708,333	0	2,183,168

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