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
Jun 29, 2026 20:41	Ilya	CPPclang++14.0.6	Error
Jun 29, 2026 20:39	Ilya	CPPclang++14.0.6	Success	60,418
Jun 29, 2026 20:36	Ilya	CPPclang++14.0.6	Success	59,762
Jun 29, 2026 20:35	Ilya	CPPclang++14.0.6	Error
Jun 29, 2026 20:30	Ilya	CPPclang++14.0.6	Error
Jun 29, 2026 20:29	Ilya	CPPclang++14.0.6	Error
Jun 29, 2026 20:27	Ilya	CPPclang++14.0.6	Success	60,072
Jun 29, 2026 20:22	Ilya	CPPclang++14.0.6	Success	59,762
Jun 29, 2026 20:05	Ilya	CPPclang++14.0.6	Success	59,848
Jun 29, 2026 19:59	Ilya	CPPclang++14.0.6	Success	60,043
Jun 29, 2026 19:58	Ilya	CPPclang++14.0.6	Error
Jun 29, 2026 19:54	Ilya	CPPclang++20.1.2	Success	60,962
Jun 29, 2026 19:49	Ilya	CPPclang++14.0.6	Success	59,759
Jun 29, 2026 19:42	Ilya	CPPclang++14.0.6	Success	59,824
Jun 29, 2026 19:35	Ilya	CPPclang++14.0.6	Success	59,743+0.44 RP
Jun 29, 2026 19:34	Ilya	CPPclang++14.0.6	Success	59,951
Jun 29, 2026 19:31	Ilya	CPPg++14.2.0	Success	60,597
Jun 29, 2026 19:27	Ilya	CPPg++14.2.0	Success	60,272
Jun 29, 2026 19:25	Ilya	CPPclang++20.1.2	Success	60,948
Jun 29, 2026 19:24	Ilya	CPPg++13.3.0	Success	60,305
Jun 29, 2026 19:22	Ilya	CPPclang++14.0.6	Success	59,900+0.93 RP
Jun 29, 2026 14:47	Ilya	CPPclang++14.0.6	Success	60,578
Jun 29, 2026 14:42	Ilya	CPPclang++14.0.6	Success	68,145
Jun 29, 2026 14:33	Ilya	CPPclang++18.1.3	Success	60,997
Jun 29, 2026 14:26	Ilya	CPPclang++14.0.6	Success	60,237+0.42 RP
Jun 29, 2026 14:25	Ilya	CPPclang++20.1.2	Success	61,118
Jun 29, 2026 14:19	Ilya	CPPg++14.2.0	Success	60,759
Jun 29, 2026 14:02	Ilya	CPPg++13.3.0	Success	60,389+1.02 RP
Jun 29, 2026 13:59	Ilya	CPPg++13.3.0	Success	64,454
Jun 29, 2026 13:51	Ilya	CPPg++13.3.0	Success	62,608
Jun 29, 2026 13:49	Ilya	CPPg++13.3.0	Success	60,764+0.90 RP
Jun 29, 2026 13:44	Ilya	CPPg++14.2.0	Success	61,140
Jun 29, 2026 13:40	Ilya	CPPclang++20.1.2	Success	61,097+0.58 RP
Jun 29, 2026 13:36	Ilya	CPPg++13.3.0	Success	61,313+0.64 RP
Jun 29, 2026 13:34	Ilya	CPPg++13.3.0	Error
Jun 29, 2026 13:28	Ilya	CPPg++13.3.0	Success	62,410
Jun 29, 2026 13:25	Ilya	CPPg++13.3.0	Success	61,556+3.77 RP
Jun 29, 2026 13:23	Ilya	CPPclang++20.1.2	Success	63,927
Jun 29, 2026 13:17	Ilya	CPPg++14.2.0	Success	63,870
Jun 29, 2026 13:10	Ilya	CPPg++13.3.0	Success	64,689
Jun 29, 2026 12:37	Ilya	CPPg++10.5.0	Success	70,894
Jun 29, 2026 12:27	Ilya	CPPg++10.5.0	Error
Jun 28, 2026 09:49	Shikhar Soni	CPPg++10.5.0	Success	72,345+0.04 RP
Jun 28, 2026 09:47	Shikhar Soni	CPPg++10.5.0	Success	72,364+0.10 RP
Jun 28, 2026 09:46	Shikhar Soni	CPPg++13.3.0	Success	72,416+0.02 RP
Jun 28, 2026 09:44	Shikhar Soni	CPPg++14.2.0	Success	72,424+5.13 RP
Jun 28, 2026 09:40	Shikhar Soni	CPPg++14.2.0	Success	75,221+132.94 RP
Jun 26, 2026 21:12	Ilya	CPPg++14.2.0	Error
Jun 26, 2026 21:09	Ilya	CPPg++13.3.0	Error
Jun 26, 2026 21:08	Ilya	CPPclang++20.1.2	Error
Jun 26, 2026 12:43	Victor Mercklé	CPPg++14.2.0	Success	21,981,091
Jun 26, 2026 12:32	Victor Mercklé	CPPg++14.2.0	Success	21,891,564
Jun 26, 2026 07:01	Ilya	CPPclang++20.1.2	Error
Jun 26, 2026 06:59	Ilya	CPPclang++20.1.2	Error
Jun 26, 2026 06:56	Ilya	CPPclang++20.1.2	Error
Jun 26, 2026 06:43	Ilya	CPPclang++20.1.2	Success	21,549,278
Jun 26, 2026 06:32	Ilya	CPPclang++20.1.2	Success	21,681,318
Jun 26, 2026 06:29	Ilya	CPPg++13.3.0	Error
Jun 26, 2026 06:27	Ilya	CPPg++13.3.0	Success	65,624
Jun 25, 2026 22:35	Ilya	CPPclang++20.1.2	Success	63,451
Jun 25, 2026 22:33	Ilya	CPPg++10.5.0	Success	64,683
Jun 25, 2026 22:30	Ilya	CPPg++13.3.0	Success	64,213
Jun 25, 2026 22:27	Ilya	CPPclang++18.1.3	Error
Jun 25, 2026 22:26	Ilya	CPPclang++20.1.2	Error
Jun 25, 2026 22:24	Ilya	CPPg++14.2.0	Success	63,018+4.14 RP
Jun 25, 2026 22:21	Ilya	CPPg++13.3.0	Error
Jun 25, 2026 22:04	Ilya	CPPg++10.5.0	Success	64,705+19.29 RP
Jun 25, 2026 21:56	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 18:44	Ilya	CPPg++10.5.0	Success	73,932+5.22 RP
Jun 25, 2026 18:41	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 18:36	Ilya	CPPg++10.5.0	Success	77,586
Jun 25, 2026 18:34	Ilya	CPPg++10.5.0	Success	77,775
Jun 25, 2026 18:31	Ilya	CPPg++10.5.0	Success	77,270
Jun 25, 2026 18:27	Ilya	CPPg++10.5.0	Success	76,900+129.58 RP
Jun 25, 2026 18:23	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 18:17	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 18:04	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 18:03	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 18:02	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 17:58	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 17:58	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 17:25	Ilya	CPPg++10.5.0	Success	21,862,572+0.01 RP
Jun 25, 2026 17:23	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 17:19	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 17:19	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 17:15	Ilya	CPPg++10.5.0	Error
Jun 25, 2026 11:14	Victor Mercklé	CPPg++14.2.0	Success	56,897+0.42 RP
Jun 25, 2026 11:09	Victor Mercklé	CPPg++14.2.0	Success	57,145
Jun 25, 2026 11:03	Victor Mercklé	CPPg++14.2.0	Success	58,491
Jun 25, 2026 10:51	Victor Mercklé	CPPg++14.2.0	Success	56,964+0.30 RP
Jun 25, 2026 10:46	Victor Mercklé	CPPg++14.2.0	Success	93,567
Jun 25, 2026 10:41	Victor Mercklé	CPPg++14.2.0	Success	57,013+0.06 RP
Jun 25, 2026 10:16	Victor Mercklé	CPPg++14.2.0	Success	57,062
Jun 25, 2026 09:47	Victor Mercklé	CPPg++14.2.0	Success	57,037
Jun 25, 2026 09:17	Victor Mercklé	CPPg++14.2.0	Success	262,621
Jun 25, 2026 08:54	Victor Mercklé	CPPg++14.2.0	Success	57,024+0.14 RP
Jun 25, 2026 08:27	Victor Mercklé	CPPg++14.2.0	Success	93,872
Jun 25, 2026 08:02	Victor Mercklé	CPPg++14.2.0	Success	93,654
Jun 25, 2026 07:39	Victor Mercklé	CPPg++14.2.0	Success	57,108
Jun 25, 2026 07:34	Victor Mercklé	CPPg++14.2.0	Success	57,116

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