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
Apr 11, 2025 21:45	Drew Garcia	CPPclang++18.1.3	Error
Apr 11, 2025 21:42	Drew Garcia	CPPclang++18.1.3	Success	128,292+77.95 RP
Apr 11, 2025 21:37	Drew Garcia	CPPclang++18.1.3	Error
Apr 11, 2025 20:50	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,500
Apr 11, 2025 20:49	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,484
Apr 11, 2025 20:49	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,859
Apr 11, 2025 20:47	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,519
Apr 11, 2025 20:46	Yuriy Lyfenko	CPPg++13.2.0	Success	59,768
Apr 11, 2025 20:46	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,451
Apr 11, 2025 20:45	Yuriy Lyfenko	CPPclang++18.1.3	Error
Apr 11, 2025 20:43	Yuriy Lyfenko	CPPclang++18.1.3	Error
Apr 11, 2025 20:42	Yuriy Lyfenko	CPPclang++18.1.3	Success	59,470
Apr 11, 2025 18:11	Chandrasekaran Akash	CPPg++13.2.0	Success	69,900+1.21 RP
Apr 11, 2025 17:59	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 17:57	Chandrasekaran Akash	CPPclang++18.1.3	Success	70,681
Apr 11, 2025 17:54	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 17:24	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,300,784
Apr 11, 2025 17:08	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 16:59	Chandrasekaran Akash	CPPclang++18.1.3	Success	72,565
Apr 11, 2025 15:02	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,327,549
Apr 11, 2025 15:00	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,363,368
Apr 11, 2025 14:45	Chandrasekaran Akash	CPPclang++18.1.3	Success	70,514
Apr 11, 2025 06:20	Chandrasekaran Akash	CPPclang++18.1.3	Success	71,073
Apr 11, 2025 05:39	Chandrasekaran Akash	CPPclang++18.1.3	Success	70,497+0.47 RP
Apr 11, 2025 05:38	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 05:37	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 05:36	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 05:34	Chandrasekaran Akash	CPPclang++18.1.3	Success	70,730+0.47 RP
Apr 11, 2025 04:56	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 04:49	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,152,792
Apr 11, 2025 04:32	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,220,373
Apr 11, 2025 04:10	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 04:10	Chandrasekaran Akash	CPPg++13.2.0	Error
Apr 11, 2025 04:07	Chandrasekaran Akash	CPPg++13.2.0	Error
Apr 11, 2025 04:06	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 03:41	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 03:33	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 03:31	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 03:16	Chandrasekaran Akash	CPPclang++18.1.3	Success	8,118,224
Apr 11, 2025 03:15	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 02:27	Chandrasekaran Akash	CPPclang++18.1.3	Success	70,965+0.72 RP
Apr 11, 2025 02:27	Chandrasekaran Akash	CPPg++13.2.0	Success	75,973
Apr 11, 2025 01:50	Chandrasekaran Akash	CPPg++13.2.0	Error
Apr 11, 2025 01:46	Chandrasekaran Akash	CPPg++13.2.0	Success	71,684
Apr 11, 2025 01:42	Chandrasekaran Akash	CPPg++13.2.0	Success	71,643
Apr 11, 2025 01:40	Chandrasekaran Akash	CPPg++13.2.0	Error
Apr 11, 2025 01:38	Chandrasekaran Akash	CPPg++13.2.0	Success	71,332+0.77 RP
Apr 11, 2025 01:38	Chandrasekaran Akash	CPPclang++18.1.3	Success	72,476
Apr 11, 2025 01:29	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:29	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:28	Chandrasekaran Akash	CPPclang++18.1.3	Success	71,981
Apr 11, 2025 01:26	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:17	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:13	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:11	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:07	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:05	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 01:02	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,990,919
Apr 11, 2025 00:59	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,896,270
Apr 11, 2025 00:58	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 00:57	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 00:57	Chandrasekaran Akash	CPPg++13.2.0	Error
Apr 11, 2025 00:54	Chandrasekaran Akash	CPPg++13.2.0	Success	6,836,970
Apr 11, 2025 00:54	Chandrasekaran Akash	CPPclang++18.1.3	Success	7,599,557
Apr 11, 2025 00:46	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 11, 2025 00:46	Chandrasekaran Akash	CPPg++13.2.0	Error
Apr 11, 2025 00:37	Chandrasekaran Akash	CPPg++13.2.0	Success	72,632
Apr 11, 2025 00:35	Chandrasekaran Akash	CPPclang++18.1.3	Success	71,727+138.95 RP
Apr 10, 2025 21:31	Chandrasekaran Akash	CPPg++13.2.0	Success	21,170,841+0.47 RP
Apr 9, 2025 18:00	NoSIMD_C#	CSHARP9.0.4	Success	271,511
Apr 9, 2025 17:53	NoSIMD_C#	CSHARP9.0.4	Success	271,432
Apr 9, 2025 17:41	NoSIMD_C#	CSHARP9.0.4	Success	273,030
Apr 9, 2025 16:55	NoSIMD_C#	CSHARP9.0.3	Success	272,476
Apr 9, 2025 16:51	NoSIMD_C#	CSHARP9.0.3	Success	607,965
Apr 9, 2025 16:47	NoSIMD_C#	CSHARP9.0.3	Success	573,973
Apr 9, 2025 16:43	NoSIMD_C#	CSHARP9.0.3	Success	633,362
Apr 9, 2025 16:40	NoSIMD_C#	CSHARP9.0.3	Success	592,735
Apr 9, 2025 16:37	NoSIMD_C#	CSHARP9.0.3	Success	596,622
Apr 9, 2025 16:33	NoSIMD_C#	CSHARP9.0.3	Success	273,286
Apr 9, 2025 16:32	NoSIMD_C#	CSHARP9.0.3	Success	274,108
Apr 9, 2025 16:32	NoSIMD_C#	CSHARP9.0.3	Success	272,681
Apr 9, 2025 16:31	NoSIMD_C#	CSHARP9.0.3	Success	272,454
Apr 9, 2025 16:30	NoSIMD_C#	CSHARP9.0.3	Success	271,189+0.24 RP
Apr 9, 2025 16:28	NoSIMD_C#	CSHARP9.0.3	Success	576,095
Apr 9, 2025 16:27	NoSIMD_C#	CSHARP9.0.3	Success	578,054
Apr 9, 2025 16:26	NoSIMD_C#	CSHARP9.0.3	Error
Apr 9, 2025 16:21	NoSIMD_C#	CSHARP9.0.3	Error
Apr 9, 2025 16:21	NoSIMD_C#	CSHARP9.0.3	Error
Apr 9, 2025 16:17	NoSIMD_C#	CSHARP9.0.3	Success	275,203
Apr 9, 2025 16:16	NoSIMD_C#	CSHARP9.0.3	Success	279,062
Apr 9, 2025 16:15	NoSIMD_C#	CSHARP9.0.3	Success	277,527
Apr 9, 2025 16:14	NoSIMD_C#	CSHARP9.0.3	Success	274,092
Apr 9, 2025 12:01	NoSIMD_C#	CSHARP9.0.3	Success	274,438
Apr 9, 2025 12:00	NoSIMD_C#	CSHARP9.0.3	Success	586,505
Apr 9, 2025 11:56	NoSIMD_C#	CSHARP9.0.3	Success	509,462
Apr 9, 2025 11:52	NoSIMD_C#	CSHARP9.0.3	Success	325,241
Apr 9, 2025 11:40	NoSIMD_C#	CSHARP9.0.3	Error
Apr 9, 2025 11:30	NoSIMD_C#	CSHARP9.0.3	Error
Apr 9, 2025 08:46	NoSIMD_C#	CSHARP9.0.3	Error
Apr 9, 2025 08:41	NoSIMD_C#	CSHARP9.0.3	Error

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