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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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.

Date	Author	Language	Status	Score
Jan 22, 2025 02:16	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 02:14	Ian Mckibben	CPPclang++18.1.3	Success	710,370
Jan 22, 2025 02:13	Ian Mckibben	CPPclang++18.1.3	Success	746,995
Jan 22, 2025 02:10	Ian Mckibben	CPPclang++18.1.3	Success	69,922
Jan 22, 2025 02:10	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 02:09	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 02:06	Ian Mckibben	CPPclang++18.1.3	Success	73,957
Jan 22, 2025 02:04	Ian Mckibben	CPPclang++18.1.3	Success	74,038
Jan 22, 2025 01:53	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:52	Ian Mckibben	CPPclang++18.1.3	Success	79,324
Jan 22, 2025 01:49	Ian Mckibben	CPPclang++18.1.3	Success	69,881+1.70 RP
Jan 22, 2025 01:48	Ian Mckibben	CPPclang++18.1.3	Success	79,576
Jan 22, 2025 01:47	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:45	Ian Mckibben	CPPclang++18.1.3	Success	83,014
Jan 22, 2025 01:45	Ian Mckibben	CPPclang++18.1.3	Success	83,430
Jan 22, 2025 01:44	Ian Mckibben	CPPclang++18.1.3	Success	83,527
Jan 22, 2025 01:41	Ian Mckibben	CPPclang++18.1.3	Success	71,295
Jan 22, 2025 01:40	Ian Mckibben	CPPclang++18.1.3	Success	71,359
Jan 22, 2025 01:33	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:31	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:29	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:27	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:19	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:17	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:14	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:13	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:13	Ian Mckibben	CPPclang++18.1.3	Success	71,405
Jan 22, 2025 01:12	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:11	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:10	Ian Mckibben	CPPclang++18.1.3	Success	71,495
Jan 22, 2025 01:09	Ian Mckibben	CPPclang++18.1.3	Error
Jan 22, 2025 01:09	Ian Mckibben	CPPclang++18.1.3	Success	71,070
Jan 22, 2025 01:07	Ian Mckibben	CPPclang++18.1.3	Error
Jan 21, 2025 07:40	NoSIMD_C#	CSHARP9.0.1	Success	276,622
Jan 20, 2025 21:13	Oleg Kovalov	GOgo1.23.5	Error
Jan 19, 2025 09:46	Ian Mckibben	CPPclang++18.1.3	Success	70,886
Jan 19, 2025 09:44	Ian Mckibben	CPPclang++18.1.3	Success	71,057
Jan 19, 2025 09:43	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 09:42	Ian Mckibben	CPPclang++18.1.3	Success	70,973
Jan 19, 2025 09:35	Ian Mckibben	CPPclang++18.1.3	Success	71,154
Jan 19, 2025 09:33	Ian Mckibben	CPPclang++18.1.3	Success	70,808
Jan 19, 2025 09:32	Ian Mckibben	CPPclang++18.1.3	Success	70,719+0.13 RP
Jan 19, 2025 09:31	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 09:30	Ian Mckibben	CPPclang++18.1.3	Success	71,019
Jan 19, 2025 09:26	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 09:23	Ian Mckibben	CPPclang++18.1.3	Success	71,141
Jan 19, 2025 09:22	Ian Mckibben	CPPclang++18.1.3	Success	70,784+0.18 RP
Jan 19, 2025 09:21	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 09:20	Ian Mckibben	CPPclang++18.1.3	Success	71,181
Jan 19, 2025 09:19	Ian Mckibben	CPPclang++18.1.3	Success	71,003
Jan 19, 2025 09:14	Ian Mckibben	CPPclang++18.1.3	Success	71,127
Jan 19, 2025 09:14	Ian Mckibben	CPPclang++18.1.3	Success	70,876+0.35 RP
Jan 19, 2025 09:12	Ian Mckibben	CPPclang++18.1.3	Success	71,051+0.01 RP
Jan 19, 2025 09:10	Ian Mckibben	CPPclang++18.1.3	Success	71,165
Jan 19, 2025 09:08	Ian Mckibben	CPPclang++18.1.3	Success	71,054+0.01 RP
Jan 19, 2025 09:07	Ian Mckibben	CPPclang++18.1.3	Success	71,105
Jan 19, 2025 09:05	Ian Mckibben	CPPclang++18.1.3	Success	71,057+0.60 RP
Jan 19, 2025 09:05	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:57	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:55	Ian Mckibben	CPPclang++18.1.3	Success	71,384
Jan 19, 2025 07:55	Ian Mckibben	CPPclang++18.1.3	Success	71,508
Jan 19, 2025 07:54	Ian Mckibben	CPPclang++18.1.3	Success	71,389
Jan 19, 2025 07:49	Ian Mckibben	CPPclang++18.1.3	Success	71,359+7.52 RP
Jan 19, 2025 07:46	Ian Mckibben	CPPclang++18.1.3	Success	76,900
Jan 19, 2025 07:44	Ian Mckibben	CPPclang++18.1.3	Success	78,419
Jan 19, 2025 07:30	Ian Mckibben	CPPclang++18.1.3	Success	75,546
Jan 19, 2025 07:30	Ian Mckibben	CPPclang++18.1.3	Success	75,754
Jan 19, 2025 07:28	Ian Mckibben	CPPclang++18.1.3	Success	75,600
Jan 19, 2025 07:27	Ian Mckibben	CPPclang++18.1.3	Success	107,822
Jan 19, 2025 07:26	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:25	Ian Mckibben	CPPclang++18.1.3	Success	75,405+0.19 RP
Jan 19, 2025 07:10	Ian Mckibben	CPPclang++18.1.3	Success	84,078
Jan 19, 2025 07:09	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:08	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:07	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:06	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 07:05	AnSa	CPPg++13.2.0	Success	71,668+0.44 RP
Jan 19, 2025 07:03	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 06:57	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 06:56	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 06:54	Ian Mckibben	CPPclang++18.1.3	Success	75,511+5.65 RP
Jan 19, 2025 06:52	Ian Mckibben	CPPclang++18.1.3	Error
Jan 19, 2025 06:49	Ian Mckibben	CPPg++13.2.0	Success	90,522
Jan 17, 2025 06:35	Ian Mckibben	CPPg++13.2.0	Success	78,878+3.47 RP
Jan 17, 2025 06:27	Ian Mckibben	CPPg++13.2.0	Success	81,251
Jan 17, 2025 06:24	Ian Mckibben	CPPg++13.2.0	Success	81,100+35.70 RP
Jan 17, 2025 06:22	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:17	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:15	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:13	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:11	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:10	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:09	Ian Mckibben	CPPclang++18.1.3	Error
Jan 17, 2025 06:08	Ian Mckibben	CPPclang++18.1.3	Error
Jan 17, 2025 06:07	Ian Mckibben	CPPclang++18.1.3	Error
Jan 17, 2025 06:06	Ian Mckibben	CPPclang++18.1.3	Error
Jan 17, 2025 06:05	Ian Mckibben	CPPclang++18.1.3	Error
Jan 17, 2025 06:04	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:02	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 06:01	Ian Mckibben	CPPg++13.2.0	Error

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