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 17, 2025 05:57	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:51	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:47	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:34	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:30	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:30	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:27	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 05:26	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:33	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:32	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:31	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:31	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:30	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:29	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:28	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:27	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:26	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:25	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:24	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:21	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 04:19	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 01:12	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 01:07	Ian Mckibben	CPPg++13.2.0	Success	115,951
Jan 17, 2025 00:55	Ian Mckibben	CPPg++13.2.0	Success	114,278
Jan 17, 2025 00:53	Ian Mckibben	CPPg++13.2.0	Success	747,941
Jan 17, 2025 00:51	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 00:48	Ian Mckibben	CPPg++13.2.0	Error
Jan 17, 2025 00:38	Ian Mckibben	CPPg++13.2.0	Success	114,143+0.71 RP
Jan 17, 2025 00:37	Ian Mckibben	CPPg++13.2.0	Success	128,814
Jan 17, 2025 00:36	Ian Mckibben	CPPg++13.2.0	Success	142,789
Jan 17, 2025 00:34	Ian Mckibben	CPPg++13.2.0	Success	140,881
Jan 17, 2025 00:34	Ian Mckibben	CPPg++13.2.0	Success	166,076
Jan 16, 2025 23:37	Ian Mckibben	CPPg++13.2.0	Success	115,076+63.01 RP
Jan 16, 2025 23:36	Ian Mckibben	CPPg++13.2.0	Success	16,759,692
Jan 16, 2025 23:35	Ian Mckibben	CPPg++13.2.0	Success	418,608+21.24 RP
Jan 16, 2025 23:34	Ian Mckibben	CPPg++13.2.0	Success	28,444,014
Jan 16, 2025 23:33	Ian Mckibben	CPPg++13.2.0	Error
Jan 16, 2025 23:31	Ian Mckibben	CPPg++13.2.0	Error
Jan 16, 2025 23:30	Ian Mckibben	CPPg++13.2.0	Error
Jan 16, 2025 23:23	Ian Mckibben	CPPg++13.2.0	Success	3,782,216+2.17 RP
Jan 16, 2025 23:23	Ian Mckibben	CPPg++13.2.0	Success	21,231,770+0.01 RP
Jan 16, 2025 23:22	Ian Mckibben	CPPclang++18.1.3	Error
Jan 16, 2025 23:20	Ian Mckibben	CPPclang++18.1.3	Success	21,607,992+0.46 RP
Jan 11, 2025 11:49	Mikhail Shirokov	CPPg++13.2.0	Success	105,646+0.43 RP
Dec 24, 2024 19:09	Iheb	CPPg++13.2.0	Success	608,735+15.20 RP
Dec 24, 2024 18:57	Iheb	CPPg++9.4.0	Success	10,796,670
Dec 22, 2024 22:37	HighloadGPTO1	CPPg++13.2.0	Success	119,668+2.78 RP
Dec 22, 2024 22:37	HighloadGPTO1	CPPg++13.2.0	Success	123,781+11.05 RP
Dec 22, 2024 22:33	HighloadGPTO1	CPPclang++18.1.3	Success	143,403+69.73 RP
Dec 22, 2024 22:29	HighloadGPTO1	CPPclang++18.1.3	Error
Dec 17, 2024 16:19	spacecat8086	CPPclang++18.1.3	Success	98,857+10.75 RP
Dec 17, 2024 16:17	spacecat8086	CPPclang++18.1.3	Error
Dec 13, 2024 07:59	NoSIMD_C#	CSHARP9.0.0	Success	274,586
Dec 12, 2024 20:04	Joad Nacer	CPPclang++18.1.3	Error
Dec 12, 2024 18:39	Yuriy Lyfenko	CPPg++13.2.0	Success	60,308
Dec 12, 2024 18:39	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,668
Dec 7, 2024 18:36	NoSIMD_C#	CSHARP9.0.0	Success	272,041+1.34 RP
Dec 5, 2024 07:06	NoSIMD_C#	CSHARP9.0.0-rc.2	Success	277,400
Dec 4, 2024 03:57	Hayden Donnelly	CPPclang++18.1.3	Success	112,173+1.49 RP
Dec 4, 2024 03:56	Hayden Donnelly	CPPclang++18.1.3	Success	115,003
Dec 4, 2024 03:50	Hayden Donnelly	CPPclang++18.1.3	Success	114,084+87.65 RP
Dec 3, 2024 18:02	spacecat8086	CPPclang++18.1.3	Success	110,614+2.59 RP
Dec 3, 2024 18:00	spacecat8086	CPPclang++18.1.3	Success	115,681
Dec 3, 2024 17:59	spacecat8086	CPPclang++18.1.3	Success	113,878+87.35 RP
Dec 3, 2024 16:27	spacecat8086	CPPclang++18.1.3	Error
Dec 3, 2024 09:30	A L Manning	RUSTrust-1.83.0	Success	105,511+94.78 RP
Dec 2, 2024 21:57	mebowler	CPPclang++18.1.3	Success	362,273+2.41 RP
Dec 2, 2024 21:56	mebowler	CPPclang++18.1.3	Success	396,951+20.76 RP
Dec 2, 2024 21:53	mebowler	CPPclang++18.1.3	Error
Dec 2, 2024 21:49	mebowler	CPPclang++18.1.3	Success	2,255,119+3.97 RP
Dec 2, 2024 21:28	mebowler	CPPclang++18.1.3	Success	21,528,886+0.46 RP
Dec 2, 2024 21:25	mebowler	GOgo1.23.3	Error
Dec 2, 2024 09:02	E Sequeira	GOgo1.23.3	Error
Nov 29, 2024 21:09	E Sequeira	CPPclang++18.1.3	Success	126,214
Nov 29, 2024 21:08	E Sequeira	CPPclang++18.1.3	Success	127,168
Nov 29, 2024 21:06	E Sequeira	GOgo1.23.3	Success	149,870
Nov 29, 2024 21:04	E Sequeira	GOgo1.23.3	Error
Nov 29, 2024 21:03	E Sequeira	GOgo1.23.3	Error
Nov 29, 2024 21:00	E Sequeira	GOgo1.23.3	Success	155,481
Nov 29, 2024 20:57	E Sequeira	CPPclang++18.1.3	Success	104,086+0.41 RP
Nov 29, 2024 20:56	E Sequeira	CPPclang++18.1.3	Success	180,865
Nov 29, 2024 20:55	E Sequeira	CPPclang++18.1.3	Success	104,530+0.43 RP
Nov 29, 2024 20:54	E Sequeira	CPPg++13.2.0	Success	213,592
Nov 29, 2024 19:29	E Sequeira	CPPclang++18.1.3	Success	175,581
Nov 29, 2024 19:16	E Sequeira	CPPclang++18.1.3	Success	105,000+12.33 RP
Nov 29, 2024 19:15	E Sequeira	CPPclang++18.1.3	Success	180,757
Nov 29, 2024 19:13	E Sequeira	CPPclang++18.1.3	Error
Nov 29, 2024 19:12	E Sequeira	CPPclang++18.1.3	Success	170,719
Nov 29, 2024 19:12	E Sequeira	CPPg++13.2.0	Success	237,743
Nov 29, 2024 19:10	E Sequeira	CPPg++13.2.0	Success	216,365
Nov 29, 2024 19:10	E Sequeira	CPPclang++18.1.3	Success	172,705
Nov 29, 2024 19:08	E Sequeira	GOgo1.23.3	Success	121,884
Nov 29, 2024 19:01	E Sequeira	GOgo1.23.3	Success	120,619+18.55 RP
Nov 29, 2024 18:58	E Sequeira	GOgo1.23.3	Success	635,930
Nov 29, 2024 18:54	E Sequeira	GOgo1.23.3	Success	155,392+2.17 RP
Nov 29, 2024 18:52	E Sequeira	GOgo1.23.3	Success	356,843
Nov 29, 2024 18:50	E Sequeira	GOgo1.23.3	Error
Nov 29, 2024 18:45	Joad Nacer	CPPclang++18.1.3	Error
Nov 29, 2024 18:41	Joad Nacer	CPPclang++18.1.3	Error
Nov 29, 2024 17:03	Joad Nacer	CPPclang++18.1.3	Error

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