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 listSep 15, 2021 17:52

Yuriy LyfenkoScore: 61,530Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 15, 2021 17:52	60,954	552,447,801	21,528,000	1,025,000	2,281,472
2	Sep 15, 2021 17:52	61,081	554,091,568	21,573,000	1,027,000	2,281,472
3	Sep 15, 2021 17:52	61,092	555,382,339	22,604,000	0	2,281,472
4	Sep 15, 2021 17:53	61,095	547,386,540	21,578,000	1,027,000	2,281,472
5	Sep 15, 2021 17:52	61,108	550,339,723	21,583,000	1,027,000	2,281,472
6	Sep 15, 2021 17:52	61,146	550,912,556	21,596,000	1,028,000	2,289,664
7	Sep 15, 2021 17:52	61,149	550,048,231	21,597,000	1,028,000	2,281,472
8	Sep 15, 2021 17:53	61,151	550,287,774	21,598,000	1,028,000	2,281,472
9	Sep 15, 2021 17:53	61,157	553,527,653	22,628,000	0	2,281,472
10	Sep 15, 2021 17:53	61,165	553,270,048	21,603,000	1,028,000	2,281,472
11	Sep 15, 2021 17:53	61,268	545,347,553	21,684,000	985,000	2,285,568
12	Sep 15, 2021 17:52	61,295	551,719,920	20,707,000	1,972,000	2,523,136
13	Sep 15, 2021 17:52	61,365	550,978,437	21,718,000	987,000	2,281,472
14	Sep 15, 2021 17:52	61,500	548,128,106	20,777,000	1,978,000	2,281,472
15	Sep 15, 2021 17:52	61,503	552,818,290	20,778,000	1,978,000	2,281,472
16	Sep 15, 2021 17:52	61,516	550,913,082	21,772,000	989,000	2,281,472
17	Sep 15, 2021 17:52	61,516	552,981,006	20,782,000	1,979,000	2,289,664
18	Sep 15, 2021 17:52	61,524	547,260,966	19,795,000	2,969,000	2,281,472
19	Sep 15, 2021 17:52	61,530	549,914,351	21,777,000	989,000	2,285,568
20	Sep 15, 2021 17:52	61,532	550,711,482	21,778,000	989,000	2,387,968
21	Sep 15, 2021 17:53	61,546	550,909,783	22,772,000	0	2,281,472
22	Sep 15, 2021 17:52	61,546	551,928,746	21,782,000	990,000	2,277,376
23	Sep 15, 2021 17:53	61,549	547,356,552	20,793,000	1,980,000	2,281,472
24	Sep 15, 2021 17:52	61,559	550,764,940	20,797,000	1,980,000	2,273,280
25	Sep 15, 2021 17:53	61,562	553,153,130	21,788,000	990,000	2,289,664
26	Sep 15, 2021 17:53	61,635	545,292,369	20,822,000	1,983,000	2,281,472
27	Sep 15, 2021 17:52	62,400	544,511,393	22,085,000	1,003,000	2,285,568
28	Sep 15, 2021 17:52	64,127	594,797,797	23,727,155	0	2,269,184
29	Sep 15, 2021 17:53	64,234	587,814,290	23,766,644	0	2,281,472
30	Sep 15, 2021 17:52	64,253	580,124,099	23,773,639	0	2,269,184
31	Sep 15, 2021 17:52	64,257	580,140,033	23,775,113	0	2,252,800
32	Sep 15, 2021 17:52	64,262	580,806,576	23,776,858	0	2,252,800
33	Sep 15, 2021 17:53	64,315	583,420,639	23,796,588	0	2,273,280
34	Sep 15, 2021 17:52	64,506	589,236,878	23,867,198	0	2,273,280
35	Sep 15, 2021 17:53	64,564	580,049,202	23,888,764	0	2,265,088
36	Sep 15, 2021 17:52	64,593	598,412,836	23,899,414	0	2,248,704

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