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 listNov 4, 2023 19:11

mmalczakScore: 69,500Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Nov 4, 2023 19:09	68,811	48,861,716	25,460,000	0	2,273,280
2	Nov 4, 2023 19:11	69,070	47,383,393	25,556,000	0	2,428,928
3	Nov 4, 2023 19:11	69,086	44,730,439	24,540,000	1,022,000	2,535,424
4	Nov 4, 2023 19:12	69,103	50,090,088	25,568,000	0	2,433,024
5	Nov 4, 2023 19:09	69,124	50,309,529	25,576,000	0	2,433,024
6	Nov 4, 2023 19:09	69,141	49,127,861	25,582,000	0	2,273,280
7	Nov 4, 2023 19:12	69,143	44,784,832	25,583,000	0	2,273,280
8	Nov 4, 2023 19:12	69,151	44,244,085	24,563,000	1,023,000	2,535,424
9	Nov 4, 2023 19:09	69,159	47,947,826	24,566,000	1,023,000	2,437,120
10	Nov 4, 2023 19:09	69,162	50,056,231	25,590,000	0	2,428,928
11	Nov 4, 2023 19:12	69,178	53,215,578	25,596,000	0	2,433,024
12	Nov 4, 2023 19:11	69,235	53,931,378	25,617,000	0	2,535,424
13	Nov 4, 2023 19:12	69,254	51,745,993	25,624,000	0	2,437,120
14	Nov 4, 2023 19:11	69,286	56,509,656	25,636,000	0	2,535,424
15	Nov 4, 2023 19:11	69,359	47,823,594	24,637,000	1,026,000	2,535,424
16	Nov 4, 2023 19:11	69,400	52,687,885	25,678,000	0	2,273,280
17	Nov 4, 2023 19:11	69,403	51,871,573	25,679,000	0	2,535,424
18	Nov 4, 2023 19:09	69,403	55,664,044	25,679,000	0	2,273,280
19	Nov 4, 2023 19:12	69,486	54,358,732	25,710,000	0	2,428,928
20	Nov 4, 2023 19:12	69,500	55,210,577	25,715,000	0	2,428,928
21	Nov 4, 2023 19:09	69,514	49,856,087	25,720,000	0	2,535,424
22	Nov 4, 2023 19:09	69,600	51,240,270	24,722,000	1,030,000	2,428,928
23	Nov 4, 2023 19:09	69,843	52,868,480	23,855,000	1,987,000	2,433,024
24	Nov 4, 2023 19:12	69,857	51,073,087	23,859,000	1,988,000	2,535,424
25	Nov 4, 2023 19:11	69,862	51,238,824	25,849,000	0	2,535,424
26	Nov 4, 2023 19:11	69,881	54,580,128	25,856,000	0	2,535,424
27	Nov 4, 2023 19:12	69,886	58,597,311	24,864,000	994,000	2,535,424
28	Sep 28, 2023 16:40	71,983	93,456,594	26,633,650	0	2,277,376
29	Sep 28, 2023 16:40	72,094	117,472,992	26,674,911	0	2,293,760
30	Nov 4, 2023 19:09	72,150	95,647,794	26,695,666	0	2,277,376
31	Nov 4, 2023 19:12	72,199	93,872,922	26,713,698	0	2,285,568
32	Nov 4, 2023 19:11	72,408	83,025,634	26,790,990	0	2,277,376
33	Nov 4, 2023 19:12	72,472	96,554,146	26,814,569	0	2,289,664
34	Sep 28, 2023 16:40	72,609	86,319,110	26,865,204	0	2,273,280
35	Nov 4, 2023 19:09	72,699	84,026,816	26,898,476	0	2,285,568
36	Nov 4, 2023 19:11	72,804	86,063,213	26,937,295	0	2,277,376
37	Nov 4, 2023 19:09	72,842	102,410,487	26,951,627	0	2,273,280
38	Nov 4, 2023 19:11	72,875	94,508,569	26,963,911	0	2,273,280
39	Nov 4, 2023 19:12	72,983	86,930,520	27,003,588	0	2,277,376

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