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 listFeb 15, 2023 18:30

LiamScore: 108,576Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 15, 2023 18:30	104,910	104,349,996	38,816,867	0	2,256,896
2	Feb 15, 2023 18:30	106,493	102,944,728	39,402,335	0	2,244,608
3	Feb 15, 2023 18:30	107,157	69,859,615	38,632,000	1,016,000	2,285,568
4	Feb 15, 2023 18:30	107,275	99,740,102	39,691,659	0	2,252,800
5	Feb 15, 2023 18:30	107,773	66,755,288	37,883,000	1,993,000	2,285,568
6	Feb 15, 2023 18:30	107,859	69,218,481	37,913,000	1,995,000	2,281,472
7	Feb 15, 2023 18:30	107,862	65,060,711	37,914,000	1,995,000	2,277,376
8	Feb 15, 2023 18:30	107,862	64,599,539	37,914,000	1,995,000	2,269,184
9	Feb 15, 2023 18:30	107,951	70,826,823	37,945,000	1,997,000	2,285,568
10	Feb 15, 2023 18:30	107,986	63,164,685	37,958,000	1,997,000	2,269,184
11	Feb 15, 2023 18:30	108,027	60,728,611	37,972,000	1,998,000	2,285,568
12	Feb 15, 2023 18:30	108,073	66,528,753	38,988,000	999,000	2,285,568
13	Feb 15, 2023 18:30	108,114	65,297,089	38,002,000	2,000,000	2,535,424
14	Feb 15, 2023 18:30	108,227	60,701,393	38,042,000	2,002,000	2,285,568
15	Feb 15, 2023 18:30	108,300	66,892,091	38,068,000	2,003,000	2,531,328
16	Feb 15, 2023 18:30	108,370	61,582,840	38,093,000	2,004,000	2,285,568
17	Feb 15, 2023 18:30	108,459	63,039,674	38,124,000	2,006,000	2,285,568
18	Feb 15, 2023 18:30	108,511	67,755,934	38,142,000	2,007,000	2,285,568
19	Feb 15, 2023 18:30	108,514	66,486,097	39,147,000	1,003,000	2,285,568
20	Feb 15, 2023 18:30	108,514	69,119,020	38,143,000	2,007,000	2,277,376
21	Feb 15, 2023 18:30	108,514	63,479,427	39,147,000	1,003,000	2,281,472
22	Feb 15, 2023 18:30	108,516	66,874,153	39,148,000	1,003,000	2,277,376
23	Feb 15, 2023 18:30	108,551	65,482,067	38,156,000	2,008,000	2,269,184
24	Feb 15, 2023 18:30	108,565	61,745,487	38,161,000	2,008,000	2,285,568
25	Feb 15, 2023 18:30	108,576	63,122,675	39,169,000	1,004,000	2,285,568
26	Feb 15, 2023 18:30	108,592	62,947,374	39,175,000	1,004,000	2,285,568
27	Feb 15, 2023 18:30	108,600	61,577,395	39,178,000	1,004,000	2,285,568
28	Feb 15, 2023 18:30	108,654	63,997,403	39,197,000	1,005,000	2,285,568
29	Feb 15, 2023 18:30	108,659	70,502,479	38,194,000	2,010,000	2,285,568
30	Feb 15, 2023 18:30	108,716	66,049,745	38,214,000	2,011,000	2,285,568
31	Feb 15, 2023 18:30	108,770	65,806,065	39,239,000	1,006,000	2,285,568
32	Feb 15, 2023 18:30	108,916	63,677,978	39,292,000	1,007,000	2,285,568
33	Feb 15, 2023 18:30	109,011	66,056,147	38,318,000	2,016,000	2,285,568
34	Feb 15, 2023 18:30	109,238	106,311,837	40,418,008	0	2,265,088
35	Feb 15, 2023 18:30	109,297	62,397,567	38,418,000	2,022,000	2,285,568
36	Feb 15, 2023 18:30	109,332	64,300,592	38,431,000	2,022,000	2,285,568
37	Feb 15, 2023 18:30	109,387	111,387,197	40,473,292	0	2,277,376
38	Feb 15, 2023 18:30	109,411	65,092,321	40,482,000	0	2,387,968
39	Feb 15, 2023 18:30	109,424	72,667,060	39,475,000	1,012,000	2,281,472
40	Feb 15, 2023 18:30	109,438	62,631,357	39,480,000	1,012,000	2,535,424
41	Feb 15, 2023 18:30	109,465	95,822,440	40,502,112	0	2,269,184
42	Feb 15, 2023 18:30	109,476	69,851,127	39,494,000	1,012,000	2,273,280
43	Feb 15, 2023 18:30	109,713	112,228,526	40,593,880	0	2,260,992
44	Feb 15, 2023 18:30	110,095	105,426,775	40,735,294	0	2,252,800
45	Feb 15, 2023 18:30	110,463	123,247,272	40,871,405	0	2,269,184
46	Feb 15, 2023 18:30	110,585	113,993,972	40,916,629	0	2,260,992
47	Feb 15, 2023 18:30	111,644	101,440,909	41,308,252	0	2,260,992
48	Feb 15, 2023 18:30	112,735	96,198,049	41,711,781	0	2,260,992

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