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 14, 2021 21:08

Yurkov AlekseyScore: 106,411Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 9, 2021 19:23	105,032	66,007,888	37,866,000	996,000	2,289,664
2	Jul 9, 2021 19:23	105,170	63,129,122	36,918,000	1,995,000	2,269,184
3	Jul 9, 2021 19:23	105,289	60,395,319	36,960,000	1,997,000	2,273,280
4	Jul 14, 2021 21:08	105,473	66,108,445	38,025,000	1,000,000	2,289,664
5	Jul 9, 2021 19:16	105,481	63,444,640	37,027,000	2,001,000	2,527,232
6	Jul 14, 2021 21:08	105,597	60,858,009	37,068,000	2,003,000	2,289,664
7	Jul 14, 2021 21:08	105,759	58,422,206	39,131,000	0	2,269,184
8	Jul 9, 2021 19:16	105,759	61,721,101	37,125,000	2,006,000	2,289,664
9	Jul 9, 2021 19:16	105,803	64,609,303	37,140,000	2,007,000	2,277,376
10	Jul 9, 2021 19:23	105,976	66,244,756	37,201,000	2,010,000	2,289,664
11	Jul 9, 2021 19:23	106,011	63,794,812	38,219,000	1,005,000	2,277,376
12	Jul 14, 2021 21:08	106,027	67,271,807	37,219,000	2,011,000	2,289,664
13	Jul 9, 2021 19:16	106,059	60,106,436	38,236,000	1,006,000	2,289,664
14	Jul 9, 2021 19:23	106,257	68,061,275	37,299,000	2,016,000	2,289,664
15	Jul 9, 2021 19:16	106,278	62,817,986	38,315,000	1,008,000	2,269,184
16	Jul 9, 2021 19:16	106,292	63,783,483	38,320,000	1,008,000	2,277,376
17	Jul 9, 2021 19:16	106,335	64,887,859	37,327,000	2,017,000	2,289,664
18	Jul 14, 2021 21:08	106,376	61,509,895	38,350,000	1,009,000	2,289,664
19	Jul 9, 2021 19:23	106,411	65,932,589	38,363,000	1,009,000	2,289,664
20	Jul 14, 2021 21:08	106,484	68,112,720	37,379,000	2,020,000	2,289,664
21	Jul 9, 2021 19:23	106,489	66,539,125	37,381,000	2,020,000	2,289,664
22	Jul 9, 2021 19:16	106,635	64,570,013	37,432,000	2,023,000	2,281,472
23	Jul 14, 2021 21:08	106,781	62,245,207	38,496,000	1,013,000	2,289,664
24	Jul 9, 2021 19:23	106,825	104,472,766	39,525,331	0	2,273,280
25	Jul 14, 2021 21:08	106,865	112,717,918	39,539,903	0	2,273,280
26	Jul 14, 2021 21:08	106,932	67,653,396	39,565,000	0	2,277,376
27	Jul 9, 2021 19:16	107,008	67,657,608	39,593,000	0	2,277,376
28	Jul 9, 2021 19:23	107,147	103,065,734	39,644,310	0	2,260,992
29	Jul 9, 2021 19:16	107,147	107,071,476	39,644,539	0	2,273,280
30	Jul 9, 2021 19:23	107,224	66,219,427	38,656,000	1,017,000	2,273,280
31	Jul 9, 2021 19:16	107,280	104,592,807	39,693,606	0	2,273,280
32	Jul 14, 2021 21:08	107,499	114,314,740	39,774,606	0	2,269,184
33	Jul 14, 2021 21:08	107,743	68,820,483	37,872,000	1,993,000	2,289,664
34	Jul 9, 2021 19:16	107,877	102,086,337	39,914,406	0	2,265,088
35	Jul 14, 2021 21:08	108,029	104,839,657	39,970,870	0	2,269,184
36	Jul 9, 2021 19:23	108,461	110,823,380	40,130,535	0	2,265,088

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