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 17:59

Yuriy LyfenkoScore: 88,843Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 13, 2021 18:00	86,746	58,388,514	29,087,000	3,009,000	2,490,368
2	Jul 13, 2021 17:59	87,008	51,927,071	29,175,000	3,018,000	2,310,144
3	Jul 13, 2021 17:59	87,581	54,434,945	31,393,000	1,012,000	2,498,560
4	Jul 13, 2021 17:58	87,735	54,045,991	30,434,000	2,028,000	2,363,392
5	Jul 13, 2021 18:00	87,870	53,756,615	30,480,000	2,032,000	2,306,048
6	Jul 13, 2021 17:59	87,968	63,349,184	30,514,000	2,034,000	2,490,368
7	Jul 13, 2021 17:59	88,003	54,901,001	31,544,000	1,017,000	2,494,464
8	Jul 13, 2021 17:58	88,057	61,079,884	31,563,000	1,018,000	2,494,464
9	Jul 13, 2021 18:00	88,284	58,165,349	31,645,000	1,020,000	2,355,200
10	Jul 13, 2021 18:00	88,286	62,916,014	30,625,000	2,041,000	2,494,464
11	Jul 13, 2021 17:58	88,700	60,876,613	30,830,000	1,989,000	2,306,048
12	Jul 13, 2021 17:58	88,722	58,644,973	30,838,000	1,989,000	2,310,144
13	Jul 13, 2021 17:58	88,727	60,011,908	31,835,000	994,000	2,314,240
14	Jul 13, 2021 17:58	88,778	56,396,198	30,858,000	1,990,000	2,330,624
15	Jul 13, 2021 18:00	88,792	65,548,069	30,862,000	1,991,000	2,498,560
16	Jul 13, 2021 17:58	88,816	59,399,873	30,871,000	1,991,000	2,318,336
17	Jul 13, 2021 17:59	88,819	58,393,520	30,872,000	1,991,000	2,494,464
18	Jul 13, 2021 18:00	88,841	58,881,215	30,879,000	1,992,000	2,318,336
19	Jul 13, 2021 17:59	88,843	56,217,055	29,884,000	2,988,000	2,306,048
20	Jul 13, 2021 17:58	88,857	58,185,790	30,885,000	1,992,000	2,318,336
21	Jul 13, 2021 18:00	88,859	58,063,239	30,886,000	1,992,000	2,494,464
22	Jul 13, 2021 17:59	88,905	57,142,381	30,902,000	1,993,000	2,482,176
23	Jul 13, 2021 17:58	88,948	98,157,210	32,910,873	0	2,289,664
24	Jul 13, 2021 17:58	89,107	89,946,148	32,969,424	0	2,281,472
25	Jul 13, 2021 17:59	89,127	56,693,648	30,979,000	1,998,000	2,351,104
26	Jul 13, 2021 18:00	89,127	58,900,760	30,979,000	1,998,000	2,314,240
27	Jul 13, 2021 18:00	89,355	110,348,204	33,061,309	0	2,293,760
28	Jul 13, 2021 18:00	89,435	92,701,768	33,091,063	0	2,277,376
29	Jul 13, 2021 17:59	89,862	103,501,211	33,248,973	0	2,281,472
30	Jul 13, 2021 18:00	89,927	59,949,810	31,257,000	2,016,000	2,490,368
31	Jul 13, 2021 17:59	89,935	98,782,262	33,275,791	0	2,285,568
32	Jul 13, 2021 17:59	89,952	99,601,616	33,282,363	0	2,297,856
33	Jul 13, 2021 18:00	89,960	99,103,710	33,285,185	0	2,289,664
34	Jul 13, 2021 17:58	90,059	96,735,568	33,321,782	0	2,289,664
35	Jul 13, 2021 17:59	90,084	55,018,406	30,301,000	3,030,000	2,314,240
36	Jul 13, 2021 17:58	90,159	60,522,240	31,338,000	2,021,000	2,502,656

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