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.

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mmalczakScore: 69,876Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 28, 2023 18:07	68,805	50,291,780	24,440,000	1,018,000	2,433,024
2	Sep 28, 2023 18:07	68,851	46,079,517	25,475,000	0	2,535,424
3	Sep 28, 2023 17:18	68,959	47,051,855	24,495,000	1,020,000	2,424,832
4	Sep 28, 2023 18:07	69,105	51,042,826	25,569,000	0	2,535,424
5	Sep 28, 2023 18:07	69,132	53,235,873	25,579,000	0	2,428,928
6	Sep 28, 2023 17:18	69,195	50,770,142	25,602,000	0	2,273,280
7	Sep 28, 2023 18:07	69,197	58,567,474	25,603,000	0	2,433,024
8	Sep 28, 2023 18:07	69,219	53,511,856	25,611,000	0	2,535,424
9	Sep 28, 2023 18:07	69,222	47,465,033	25,612,000	0	2,514,944
10	Sep 28, 2023 18:07	69,297	52,924,510	24,615,000	1,025,000	2,433,024
11	Sep 28, 2023 18:07	69,300	51,888,787	25,641,000	0	2,433,024
12	Sep 28, 2023 18:07	69,305	53,861,108	25,643,000	0	2,519,040
13	Sep 28, 2023 17:18	69,330	50,212,592	25,652,000	0	2,428,928
14	Sep 28, 2023 18:07	69,370	52,166,549	25,667,000	0	2,273,280
15	Sep 28, 2023 17:18	69,397	54,331,553	25,677,000	0	2,535,424
16	Sep 28, 2023 17:18	69,451	58,330,616	24,670,000	1,027,000	2,273,280
17	Sep 28, 2023 18:07	69,459	51,922,779	25,700,000	0	2,424,832
18	Sep 28, 2023 18:07	69,859	47,985,133	23,860,000	1,988,000	2,514,944
19	Sep 28, 2023 17:18	69,876	56,349,006	25,854,000	0	2,535,424
20	Sep 28, 2023 18:07	69,876	55,609,036	23,866,000	1,988,000	2,535,424
21	Sep 28, 2023 17:18	69,889	48,929,215	24,865,000	994,000	2,424,832
22	Sep 28, 2023 17:18	69,895	54,777,027	25,861,000	0	2,437,120
23	Sep 28, 2023 18:07	69,895	55,736,726	24,867,000	994,000	2,273,280
24	Sep 28, 2023 18:07	69,903	53,978,195	23,875,000	1,989,000	2,433,024
25	Sep 28, 2023 18:07	69,919	54,753,537	23,880,000	1,990,000	2,514,944
26	Sep 28, 2023 18:07	69,927	51,346,292	25,873,000	0	2,433,024
27	Sep 28, 2023 17:18	69,935	59,229,734	24,881,000	995,000	2,273,280
28	Sep 28, 2023 17:18	71,938	89,648,594	26,617,232	0	2,281,472
29	Sep 28, 2023 18:07	72,179	96,408,269	26,706,382	0	2,281,472
30	Sep 28, 2023 18:07	72,305	89,871,516	26,752,962	0	2,277,376
31	Sep 28, 2023 18:07	72,400	87,969,693	26,788,092	0	2,281,472
32	Sep 28, 2023 18:07	72,585	93,597,630	26,856,522	0	2,293,760
33	Sep 28, 2023 18:07	72,615	84,581,590	26,867,703	0	2,285,568
34	Sep 28, 2023 17:18	72,633	105,060,437	26,874,355	0	2,273,280
35	Sep 28, 2023 18:07	72,862	92,664,955	26,959,067	0	2,289,664
36	Sep 28, 2023 17:18	72,906	91,089,943	26,975,036	0	2,289,664

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