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 listApr 3, 2023 21:52

Franek KortaScore: 72,149Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 3, 2023 21:50	71,400	55,669,595	24,386,000	2,032,000	2,527,232
2	Apr 3, 2023 21:50	71,543	47,600,236	26,471,000	0	2,445,312
3	Apr 3, 2023 21:53	71,749	56,635,333	24,505,000	2,042,000	2,265,088
4	Apr 3, 2023 21:53	71,768	50,597,517	26,554,000	0	2,445,312
5	Apr 3, 2023 21:52	71,808	49,154,125	26,569,000	0	2,531,328
6	Apr 3, 2023 21:50	71,881	48,866,443	23,528,000	3,068,000	2,527,232
7	Apr 3, 2023 21:53	71,881	58,378,490	25,574,000	1,022,000	2,269,184
8	Apr 3, 2023 21:50	71,924	53,995,268	26,612,000	0	2,441,216
9	Apr 3, 2023 21:53	71,943	50,655,482	26,619,000	0	2,531,328
10	Apr 3, 2023 21:52	71,946	52,757,474	25,597,000	1,023,000	2,441,216
11	Apr 3, 2023 21:52	71,968	55,510,532	25,604,000	1,024,000	2,437,120
12	Apr 3, 2023 21:52	71,997	57,531,878	26,639,000	0	2,445,312
13	Apr 3, 2023 21:53	72,000	50,704,636	26,640,000	0	2,531,328
14	Apr 3, 2023 21:50	72,003	49,863,896	26,641,000	0	2,531,328
15	Apr 3, 2023 21:52	72,043	50,096,220	25,631,000	1,025,000	2,269,184
16	Apr 3, 2023 21:50	72,062	57,074,794	26,663,000	0	2,441,216
17	Apr 3, 2023 21:53	72,116	51,557,772	25,657,000	1,026,000	2,531,328
18	Apr 3, 2023 21:50	72,119	55,134,270	26,684,000	0	2,531,328
19	Apr 3, 2023 21:52	72,149	56,596,336	25,628,000	1,067,000	2,531,328
20	Apr 3, 2023 21:53	72,224	54,113,150	25,696,000	1,027,000	2,441,216
21	Apr 3, 2023 21:52	72,489	52,763,029	25,828,000	993,000	2,269,184
22	Apr 3, 2023 21:53	72,538	64,600,198	23,857,000	2,982,000	2,437,120
23	Apr 3, 2023 21:50	72,568	56,612,180	24,862,000	1,988,000	2,445,312
24	Apr 3, 2023 21:52	72,570	51,921,639	25,857,000	994,000	2,445,312
25	Apr 3, 2023 21:53	72,576	53,097,468	25,859,000	994,000	2,265,088
26	Apr 3, 2023 21:52	72,578	48,924,995	25,860,000	994,000	2,265,088
27	Apr 3, 2023 21:50	72,605	57,331,264	26,864,000	0	2,269,184
28	Apr 3, 2023 21:50	75,178	87,894,680	27,815,828	0	2,297,856
29	Apr 3, 2023 21:52	75,537	90,827,499	27,948,522	0	2,293,760
30	Apr 3, 2023 21:52	76,163	95,243,184	28,180,492	0	2,179,072
31	Apr 3, 2023 21:53	76,169	88,845,604	28,182,377	0	2,293,760
32	Apr 3, 2023 21:50	76,249	95,961,366	28,211,976	0	2,170,880
33	Apr 3, 2023 21:53	76,255	96,402,696	28,214,287	0	2,289,664
34	Apr 3, 2023 21:50	76,275	92,405,719	28,221,684	0	2,170,880
35	Apr 3, 2023 21:52	76,433	102,055,623	28,280,305	0	2,301,952
36	Apr 3, 2023 21:53	76,839	106,046,883	28,430,492	0	2,289,664

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