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.

Date	Author	Language	Status	Score
May 6, 2026 07:43	olliecrow	CPPg++13.3.0	Success	59,786+6.01 RP
May 5, 2026 17:41	Hung T.Nguyen	CPPg++10.5.0	Success	79,018+126.55 RP
May 5, 2026 07:58	Victor Mercklé	CPPg++14.2.0	Error
May 5, 2026 07:58	olliecrow	CPPg++13.3.0	Success	60,894
May 5, 2026 03:23	olliecrow	CPPg++13.3.0	Success	60,151+0.09 RP
May 5, 2026 01:06	olliecrow	CPPg++13.3.0	Success	63,694
May 4, 2026 23:31	olliecrow	CPPg++13.3.0	Success	72,110
May 4, 2026 23:25	olliecrow	CPPg++13.3.0	Success	77,510
May 4, 2026 23:20	olliecrow	CPPclang++18.1.3	Success	68,437
May 4, 2026 22:54	olliecrow	CPPg++13.3.0	Success	63,518
May 4, 2026 21:34	olliecrow	ZIG0.14.0	Success	138,375
May 4, 2026 05:52	Josu San Martin	CPPclang++20.1.2	Success	59,300
May 4, 2026 05:49	Josu San Martin	CPPg++14.2.0	Success	59,381
May 4, 2026 05:49	Josu San Martin	CPPclang++20.1.2	Success	58,832+1.88 RP
May 3, 2026 21:22	Aleksei Shahoika	CPPg++10.5.0	Success	71,994+2.98 RP
May 3, 2026 18:23	Aleksei Shahoika	CPPg++10.5.0	Success	73,572+17.64 RP
May 3, 2026 17:51	Aleksei Shahoika	CPPg++10.5.0	Error
May 3, 2026 17:43	Aleksei Shahoika	CPPg++10.5.0	Error
May 3, 2026 17:34	Aleksei Shahoika	CPPg++10.5.0	Error
May 3, 2026 17:26	Aleksei Shahoika	CPPg++10.5.0	Error
May 1, 2026 02:53	Charles Cabergs	CPPg++13.3.0	Error
Apr 30, 2026 18:42	Charles Cabergs	CPPg++13.3.0	Error
Apr 30, 2026 16:14	Charles Cabergs	CPPg++13.3.0	Success	72,662
Apr 30, 2026 13:42	Charles Cabergs	CPPg++13.3.0	Error
Apr 30, 2026 10:58	Charles Cabergs	CPPg++13.3.0	Success	72,629
Apr 30, 2026 09:22	olliecrow	CPPclang++18.1.3	Success	66,994
Apr 30, 2026 08:27	Charles Cabergs	CPPg++13.3.0	Error
Apr 29, 2026 21:58	Charles Cabergs	CPPg++13.3.0	Success	71,035
Apr 29, 2026 19:10	Charles Cabergs	CPPg++13.3.0	Success	72,700
Apr 29, 2026 11:32	Dominique Garmier	CPPg++13.3.0	Success	70,845
Apr 29, 2026 05:43	Charles Cabergs	CPPg++13.3.0	Success	72,686
Apr 29, 2026 00:35	Charles Cabergs	CPPg++13.3.0	Success	72,691
Apr 28, 2026 19:33	Charles Cabergs	CPPg++13.3.0	Success	72,689
Apr 28, 2026 14:31	Charles Cabergs	CPPg++13.3.0	Success	72,748
Apr 28, 2026 13:57	Dominique Garmier	CPPg++13.3.0	Success	69,991
Apr 28, 2026 13:07	Dominique Garmier	CPPg++13.3.0	Success	70,791
Apr 28, 2026 10:49	Charles Cabergs	CPPg++13.3.0	Success	72,543
Apr 28, 2026 08:14	TudyM	CPPg++10.5.0	Success	107,583
Apr 28, 2026 08:12	TudyM	CPPg++10.5.0	Success	101,616+18.22 RP
Apr 28, 2026 06:21	Victor Mercklé	CPPg++14.2.0	Error
Apr 28, 2026 01:22	Charles Cabergs	CPPclang++18.1.3	Success	72,664
Apr 27, 2026 22:38	Charles Cabergs	CPPg++13.3.0	Success	72,759
Apr 27, 2026 21:22	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 20:10	Charles Cabergs	CPPg++13.3.0	Success	72,621
Apr 27, 2026 16:16	Victor Mercklé	CPPg++14.2.0	Success	77,194
Apr 27, 2026 16:08	Victor Mercklé	CPPg++14.2.0	Success	77,170+0.10 RP
Apr 27, 2026 16:06	Victor Mercklé	CPPg++14.2.0	Success	77,232+0.07 RP
Apr 27, 2026 15:46	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 15:43	Victor Mercklé	CPPg++14.2.0	Success	77,272+2.44 RP
Apr 27, 2026 15:15	Charles Cabergs	CPPg++13.3.0	Error
Apr 27, 2026 15:04	Victor Mercklé	CPPg++14.2.0	Success	78,754+123.76 RP
Apr 27, 2026 14:59	Victor Mercklé	CPPg++14.2.0	Success	3,279,581
Apr 27, 2026 14:55	Victor Mercklé	CPPg++14.2.0	Success	3,278,575
Apr 27, 2026 14:50	Victor Mercklé	CPPg++14.2.0	Success	3,190,586
Apr 27, 2026 14:46	Victor Mercklé	CPPg++14.2.0	Success	3,112,145+8.21 RP
Apr 27, 2026 14:43	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 13:59	Charles Cabergs	CPPg++13.3.0	Success	72,610
Apr 27, 2026 09:41	Charles Cabergs	CPPg++13.3.0	Success	70,943
Apr 27, 2026 07:40	Charles Cabergs	CPPg++13.3.0	Success	70,875
Apr 27, 2026 04:53	Charles Cabergs	CPPg++11.5.0	Success	72,732
Apr 27, 2026 02:13	Charles Cabergs	CPPg++13.3.0	Success	70,891+5.00 RP
Apr 26, 2026 23:32	Charles Cabergs	CPPg++13.3.0	Success	70,854
Apr 26, 2026 21:09	Charles Cabergs	CPPg++13.3.0	Success	70,978
Apr 26, 2026 20:46	TudyM	CPPg++10.5.0	Success	125,186
Apr 26, 2026 19:32	TudyM	CPPg++10.5.0	Success	124,764
Apr 26, 2026 19:04	TudyM	CPPg++14.2.0	Success	124,724
Apr 26, 2026 19:03	TudyM	CPPg++10.5.0	Success	124,708+35.63 RP
Apr 26, 2026 18:54	Charles Cabergs	CPPg++13.3.0	Success	71,105
Apr 26, 2026 17:52	TudyM	CPPg++10.5.0	Success	225,091
Apr 26, 2026 17:14	Charles Cabergs	CPPg++13.3.0	Success	71,708
Apr 26, 2026 17:03	TudyM	CPPg++10.5.0	Success	224,440+44.56 RP
Apr 26, 2026 15:16	Charles Cabergs	CPPg++13.3.0	Success	70,883
Apr 26, 2026 13:15	olliecrow	CPPclang++18.1.3	Success	62,508
Apr 26, 2026 13:09	Charles Cabergs	CPPg++13.3.0	Success	70,889
Apr 26, 2026 09:48	Charles Cabergs	CPPg++13.3.0	Success	70,881
Apr 26, 2026 07:20	Charles Cabergs	CPPg++12.4.0	Success	70,905
Apr 26, 2026 04:19	Charles Cabergs	CPPg++13.3.0	Success	71,216
Apr 25, 2026 06:26	Charles Cabergs	CPPg++13.3.0	Success	70,981
Apr 25, 2026 00:59	Charles Cabergs	CPPg++14.2.0	Success	70,813
Apr 24, 2026 22:40	Charles Cabergs	CPPg++13.3.0	Success	70,991
Apr 24, 2026 10:29	Charles Cabergs	CPPg++13.3.0	Success	70,897
Apr 23, 2026 16:55	Charles Cabergs	CPPg++13.3.0	Success	70,797
Apr 23, 2026 12:41	Charles Cabergs	CPPg++13.3.0	Success	70,848
Apr 23, 2026 11:39	Dominique Garmier	CPPg++13.3.0	Success	73,767
Apr 23, 2026 11:37	Dominique Garmier	CPPg++13.3.0	Success	74,489
Apr 23, 2026 11:26	Dominique Garmier	CPPg++13.3.0	Success	71,597
Apr 23, 2026 11:25	Dominique Garmier	CPPg++13.3.0	Success	70,702
Apr 23, 2026 09:32	Charles Cabergs	CPPg++13.3.0	Success	70,908
Apr 23, 2026 06:13	Charles Cabergs	CPPg++13.3.0	Error
Apr 23, 2026 04:24	Charles Cabergs	CPPg++13.3.0	Success	71,127
Apr 22, 2026 22:45	Charles Cabergs	CPPg++13.3.0	Success	70,937
Apr 22, 2026 19:10	Charles Cabergs	CPPg++13.3.0	Success	70,881
Apr 22, 2026 16:57	Charles Cabergs	CPPg++13.3.0	Success	70,862
Apr 22, 2026 13:01	Ben	CPPclang++20.1.2	Success	73,162+70.60 RP
Apr 22, 2026 11:39	Ben	CPPclang++20.1.2	Success	156,213
Apr 21, 2026 21:09	olliecrow	CPPclang++18.1.3	Success	62,654
Apr 21, 2026 21:09	olliecrow	CPPclang++18.1.3	Success	62,881
Apr 21, 2026 21:06	olliecrow	CPPclang++18.1.3	Success	62,797
Apr 21, 2026 18:37	Charles Cabergs	CPPg++13.3.0	Success	70,978
Apr 21, 2026 16:39	olliecrow	CPPclang++18.1.3	Success	62,897

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