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 9, 2023 16:53

Franek KortaScore: 74,419Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 9, 2023 16:54	71,008	45,899,180	24,252,000	2,021,000	2,527,232
2	Apr 9, 2023 16:58	71,670	47,663,641	26,518,000	0	2,531,328
3	Apr 9, 2023 16:54	72,714	51,390,199	24,912,000	1,992,000	2,437,120
4	Apr 9, 2023 16:53	72,795	53,231,224	25,937,000	997,000	2,527,232
5	Apr 9, 2023 16:53	72,973	51,678,940	23,885,000	3,115,000	2,437,120
6	Apr 9, 2023 16:54	73,016	47,040,269	24,015,000	3,001,000	2,527,232
7	Apr 9, 2023 16:58	73,022	50,296,948	25,017,000	2,001,000	2,441,216
8	Apr 9, 2023 16:54	73,141	48,356,815	26,060,000	1,002,000	2,437,120
9	Apr 9, 2023 16:54	73,162	48,808,681	25,065,000	2,005,000	2,433,024
10	Apr 9, 2023 16:58	73,311	50,203,541	26,121,000	1,004,000	2,531,328
11	Apr 9, 2023 16:58	73,459	46,083,395	26,174,000	1,006,000	2,437,120
12	Apr 9, 2023 16:58	73,478	54,489,672	26,181,000	1,006,000	2,269,184
13	Apr 9, 2023 16:53	73,597	52,139,000	26,223,000	1,008,000	2,527,232
14	Apr 9, 2023 16:58	73,841	53,017,844	27,321,000	0	2,531,328
15	Apr 9, 2023 16:58	73,968	46,574,165	27,368,000	0	2,269,184
16	Apr 9, 2023 16:58	74,062	45,473,887	26,389,000	1,014,000	2,445,312
17	Apr 9, 2023 16:53	74,070	51,926,708	26,391,000	1,015,000	2,437,120
18	Apr 9, 2023 16:53	74,395	50,125,536	27,526,000	0	2,269,184
19	Apr 9, 2023 16:54	74,419	52,240,914	26,516,000	1,019,000	2,441,216
20	Apr 9, 2023 16:53	74,543	53,023,487	27,581,000	0	2,437,120
21	Apr 9, 2023 16:53	74,789	55,544,132	27,672,000	0	2,441,216
22	Apr 9, 2023 16:54	75,270	53,096,982	25,861,000	1,989,000	2,531,328
23	Apr 9, 2023 16:54	75,303	60,677,030	25,872,000	1,990,000	2,441,216
24	Apr 9, 2023 16:54	75,392	52,095,920	25,903,000	1,992,000	2,437,120
25	Apr 9, 2023 16:53	76,135	48,608,882	26,158,000	2,012,000	2,531,328
26	Apr 9, 2023 16:53	76,584	56,336,775	27,324,000	1,012,000	2,433,024
27	Apr 9, 2023 16:58	76,592	49,730,576	28,339,000	0	2,269,184
28	Apr 9, 2023 16:54	79,242	104,779,945	29,319,692	0	2,293,760
29	Apr 9, 2023 16:53	79,295	90,003,258	29,339,063	0	2,170,880
30	Apr 9, 2023 16:53	79,421	87,223,738	29,385,646	0	2,297,856
31	Apr 9, 2023 16:58	79,594	87,773,416	29,449,890	0	2,293,760
32	Apr 9, 2023 16:53	80,444	94,114,328	29,764,457	0	2,293,760
33	Apr 9, 2023 16:58	80,915	91,658,671	29,938,402	0	2,170,880
34	Apr 9, 2023 16:54	80,994	99,501,572	29,967,847	0	2,297,856
35	Apr 9, 2023 16:54	81,694	102,464,427	30,226,698	0	2,293,760
36	Apr 9, 2023 16:58	81,976	86,066,930	30,331,252	0	2,174,976

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