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
Jul 7, 2026 12:22	Ilya	CPPclang++16.0.6	Error
Jul 7, 2026 12:17	Ilya	CPPclang++16.0.6	Error
Jul 7, 2026 12:12	Ilya	CPPclang++16.0.6	Error
Jul 7, 2026 12:10	Ilya	CPPclang++16.0.6	Error
Jul 7, 2026 12:09	Ilya	CPPclang++16.0.6	Error
Jul 7, 2026 12:05	Ilya	CPPclang++16.0.6	Success	60,205
Jul 7, 2026 12:04	Ilya	CPPclang++16.0.6	Success	61,424
Jul 7, 2026 12:03	Ilya	CPPclang++16.0.6	Success	61,170
Jul 7, 2026 12:02	Ilya	CPPclang++16.0.6	Success	59,094
Jul 7, 2026 11:56	Ilya	CPPclang++16.0.6	Success	59,170
Jul 7, 2026 11:53	Ilya	CPPclang++16.0.6	Success	59,035
Jul 7, 2026 10:25	Ilya	CPPclang++16.0.6	Success	59,140
Jul 6, 2026 17:21	Ilya	CPPclang++16.0.6	Success	59,191
Jul 6, 2026 17:13	Ilya	CPPclang++16.0.6	Success	59,075
Jul 3, 2026 22:46	Victor Mercklé	CPPg++14.2.0	Success	79,005
Jul 3, 2026 22:41	Victor Mercklé	CPPg++14.2.0	Success	79,097
Jul 3, 2026 22:28	Victor Mercklé	CPPg++14.2.0	Success	56,878+5.00 RP
Jul 3, 2026 18:00	Joshua Montross	CPPg++10.5.0	Success	22,396,213+5.45 RP
Jul 3, 2026 13:32	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:32	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:31	Ilya	CPPclang++16.0.6	Success	61,378
Jul 3, 2026 13:31	Ilya	CPPclang++16.0.6	Success	61,535
Jul 3, 2026 13:31	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:30	Ilya	CPPclang++16.0.6	Success	59,964
Jul 3, 2026 13:24	Ilya	CPPclang++16.0.6	Success	59,175
Jul 3, 2026 13:22	Ilya	CPPclang++16.0.6	Success	60,694
Jul 3, 2026 13:21	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:17	Ilya	CPPclang++16.0.6	Success	59,113
Jul 3, 2026 13:15	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:12	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:11	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:09	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:05	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:01	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 13:01	Ilya	CPPg++13.3.0	Success	59,329
Jul 3, 2026 13:00	Ilya	CPPg++13.3.0	Error
Jul 3, 2026 12:56	Ilya	CPPclang++16.0.6	Success	59,216
Jul 3, 2026 12:38	A_Shaman	CPPg++10.5.0	Success	70,286
Jul 3, 2026 12:32	A_Shaman	CPPg++10.5.0	Success	70,148
Jul 3, 2026 11:14	Ilya	CPPclang++16.0.6	Success	64,678
Jul 3, 2026 11:14	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 11:13	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 11:09	Ilya	CPPclang++16.0.6	Success	60,518
Jul 3, 2026 10:30	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 09:53	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 09:45	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 09:40	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 08:43	Ilya	CPPclang++16.0.6	Success	61,654
Jul 3, 2026 08:23	Ilya	CPPclang++16.0.6	Success	59,413
Jul 3, 2026 08:19	Ilya	CPPclang++16.0.6	Success	59,886
Jul 3, 2026 08:18	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 08:16	Ilya	CPPclang++16.0.6	Error
Jul 3, 2026 08:07	Ilya	CPPclang++16.0.6	Success	59,291
Jul 3, 2026 08:02	Ilya	CPPclang++16.0.6	Success	59,454
Jul 3, 2026 08:00	Ilya	CPPclang++16.0.6	Success	59,040
Jul 3, 2026 07:57	Ilya	CPPclang++16.0.6	Success	60,100
Jul 3, 2026 07:45	Ilya	CPPclang++16.0.6	Success	59,064
Jul 3, 2026 07:41	Ilya	CPPclang++16.0.6	Success	60,137
Jul 3, 2026 07:09	Ilya	CPPclang++16.0.6	Success	60,767
Jul 3, 2026 07:07	Ilya	CPPclang++16.0.6	Success	67,259+5.00 RP
Jul 3, 2026 02:42	f0xeri	CPPg++10.5.0	Success	22,383,894+5.45 RP
Jul 3, 2026 00:01	A_Shaman	CPPg++10.5.0	Success	70,121+5.19 RP
Jul 2, 2026 23:42	A_Shaman	CPPg++10.5.0	Success	70,467
Jul 2, 2026 23:36	A_Shaman	CPPg++10.5.0	Success	70,821
Jul 2, 2026 23:25	A_Shaman	CPPg++10.5.0	Success	70,278
Jul 2, 2026 23:21	A_Shaman	CPPg++10.5.0	Success	70,213+3.89 RP
Jul 2, 2026 23:13	A_Shaman	CPPg++10.5.0	Success	73,110
Jul 2, 2026 23:07	A_Shaman	CPPg++10.5.0	Success	73,064
Jul 2, 2026 23:00	A_Shaman	CPPg++10.5.0	Success	73,035
Jul 2, 2026 22:11	Victor Mercklé	CPPg++14.2.0	Success	57,024
Jul 2, 2026 21:55	Victor Mercklé	CPPg++14.2.0	Success	56,840+0.18 RP
Jul 2, 2026 21:41	Victor Mercklé	CPPg++14.2.0	Success	56,870+0.16 RP
Jul 2, 2026 21:26	Victor Mercklé	CPPg++14.2.0	Success	56,921
Jul 2, 2026 21:02	Victor Mercklé	CPPg++14.2.0	Success	56,972
Jul 2, 2026 20:40	Victor Mercklé	CPPg++14.2.0	Success	56,975
Jul 2, 2026 20:16	Victor Mercklé	CPPg++14.2.0	Success	57,067
Jul 2, 2026 16:24	Ilya	CPPclang++16.0.6	Success	58,978
Jul 2, 2026 15:11	Ilya	CPPclang++20.1.2	Success	62,813
Jul 2, 2026 15:09	Ilya	CPPclang++16.0.6	Success	62,845
Jul 2, 2026 12:41	Ilya	CPPclang++16.0.6	Success	59,454
Jul 2, 2026 12:40	Ilya	CPPclang++14.0.6	Success	59,159
Jul 2, 2026 12:39	Ilya	CPPclang++20.1.2	Success	58,991
Jul 2, 2026 12:39	Ilya	CPPclang++19.1.1	Success	59,035
Jul 2, 2026 12:39	Ilya	CPPclang++18.1.3	Success	59,124
Jul 2, 2026 12:39	Ilya	CPPclang++17.0.6	Success	59,021
Jul 2, 2026 12:36	Ilya	CPPclang++15.0.7	Success	59,070
Jul 2, 2026 12:35	Ilya	CPPg++13.3.0	Success	59,629
Jul 2, 2026 12:32	Ilya	CPPclang++16.0.6	Success	59,202
Jul 2, 2026 12:24	Ilya	CPPclang++16.0.6	Success	59,554
Jul 2, 2026 12:20	Ilya	CPPclang++16.0.6	Success	59,208
Jul 2, 2026 12:18	Ilya	CPPclang++16.0.6	Success	59,505
Jul 2, 2026 12:15	Ilya	CPPclang++16.0.6	Success	60,351
Jul 2, 2026 12:06	Ilya	CPPclang++16.0.6	Success	60,218
Jul 2, 2026 11:59	Ilya	CPPclang++16.0.6	Success	59,578
Jul 2, 2026 11:56	Ilya	CPPclang++16.0.6	Success	59,700
Jul 2, 2026 11:51	Ilya	CPPclang++16.0.6	Success	58,932
Jul 2, 2026 11:47	Ilya	CPPclang++16.0.6	Error
Jul 2, 2026 11:46	Ilya	CPPclang++16.0.6	Error
Jul 2, 2026 11:41	Ilya	CPPclang++16.0.6	Success	59,048
Jul 1, 2026 14:25	Ilya	CPPclang++16.0.6	Success	59,070

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