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 15, 2021 23:00

Yurkov AlekseyScore: 99,000Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 15, 2021 23:00	97,322	57,601,094	34,009,000	2,000,000	2,265,088
2	Jul 15, 2021 22:59	97,570	62,198,176	34,096,000	2,005,000	2,277,376
3	Jul 15, 2021 23:00	97,641	59,488,444	36,127,000	0	2,289,664
4	Jul 15, 2021 22:59	97,789	58,777,255	34,172,000	2,010,000	2,289,664
5	Jul 15, 2021 23:00	97,889	63,515,077	35,213,000	1,006,000	2,289,664
6	Jul 15, 2021 22:59	97,951	58,254,210	35,236,000	1,006,000	2,273,280
7	Jul 15, 2021 23:00	97,984	62,883,977	35,247,000	1,007,000	2,273,280
8	Jul 15, 2021 23:00	98,230	66,286,227	34,326,000	2,019,000	2,289,664
9	Jul 15, 2021 23:00	98,232	57,509,295	35,337,000	1,009,000	2,265,088
10	Jul 15, 2021 23:00	98,254	61,460,741	35,345,000	1,009,000	2,371,584
11	Jul 15, 2021 22:59	98,273	60,856,503	35,351,000	1,010,000	2,265,088
12	Jul 15, 2021 23:00	98,276	63,435,437	36,362,000	0	2,289,664
13	Jul 15, 2021 23:00	98,343	59,594,271	34,366,000	2,021,000	2,289,664
14	Jul 15, 2021 22:59	98,357	59,111,995	35,382,000	1,010,000	2,285,568
15	Jul 15, 2021 23:00	98,557	63,401,644	36,466,000	0	2,289,664
16	Jul 15, 2021 23:00	98,608	64,030,773	35,472,000	1,013,000	2,269,184
17	Jul 15, 2021 23:00	98,905	63,227,568	35,579,000	1,016,000	2,289,664
18	Jul 15, 2021 23:00	98,911	64,635,514	35,581,000	1,016,000	2,289,664
19	Jul 15, 2021 22:59	99,000	63,015,315	35,613,000	1,017,000	2,277,376
20	Jul 15, 2021 23:00	99,068	63,283,548	36,655,000	0	2,289,664
21	Jul 15, 2021 23:00	99,108	62,235,951	35,652,000	1,018,000	2,273,280
22	Jul 15, 2021 22:59	99,119	101,759,949	36,673,911	0	2,256,896
23	Jul 15, 2021 23:00	99,253	103,023,671	36,723,613	0	2,260,992
24	Jul 15, 2021 22:59	99,287	98,691,998	36,736,079	0	2,277,376
25	Jul 15, 2021 22:59	99,454	65,353,922	35,804,000	994,000	2,289,664
26	Jul 15, 2021 22:59	99,584	63,123,691	35,851,000	995,000	2,277,376
27	Jul 15, 2021 23:00	99,589	63,144,818	34,857,000	1,991,000	2,289,664
28	Jul 15, 2021 23:00	99,597	120,136,391	36,850,785	0	2,269,184
29	Jul 15, 2021 23:00	99,616	62,049,648	34,866,000	1,992,000	2,273,280
30	Jul 15, 2021 23:00	99,665	97,492,708	36,876,032	0	2,260,992
31	Jul 15, 2021 23:00	99,971	104,937,591	36,989,159	0	2,265,088
32	Jul 15, 2021 23:00	99,977	103,486,152	36,991,481	0	2,265,088
33	Jul 15, 2021 22:59	100,105	70,104,296	35,037,000	2,002,000	2,273,280
34	Jul 15, 2021 22:59	100,138	97,646,600	37,051,135	0	2,265,088
35	Jul 15, 2021 23:00	100,208	66,155,537	35,073,000	2,004,000	2,289,664
36	Jul 15, 2021 23:00	100,727	105,178,389	37,268,889	0	2,273,280

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