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
Aug 2, 2026 06:53	Victor Mercklé	CPPg++14.2.0	Success	56,978
Aug 2, 2026 06:48	Victor Mercklé	CPPg++14.2.0	Success	59,108
Aug 2, 2026 06:43	Victor Mercklé	CPPg++14.2.0	Success	56,824
Aug 2, 2026 06:38	Victor Mercklé	CPPg++14.2.0	Success	68,181
Aug 2, 2026 06:33	Victor Mercklé	CPPg++14.2.0	Success	57,000
Jul 31, 2026 06:14	Tony	CPPg++10.5.0	Success	22,404,764+0.45 RP
Jul 29, 2026 21:38	Andrew Tsibin	RUSTrust-1.95.0	Success	58,510+31.48 RP
Jul 29, 2026 21:26	Andrew Tsibin	RUSTrust-1.95.0	Success	69,897
Jul 29, 2026 21:08	Andrew Tsibin	RUSTrust-1.95.0	Success	70,964
Jul 29, 2026 20:38	Andrew Tsibin	RUSTrust-1.95.0	Success	76,843
Jul 29, 2026 19:54	Andrew Tsibin	RUSTrust-1.95.0	Success	79,454
Jul 29, 2026 19:12	Andrew Tsibin	RUSTrust-1.95.0	Success	68,591+145.79 RP
Jul 26, 2026 16:17	Misgana Bayetta	CPPg++10.5.0	Error
Jul 26, 2026 15:48	Misgana Bayetta	CPPg++10.5.0	Error
Jul 26, 2026 15:34	Misgana Bayetta	CPPg++10.5.0	Success	22,427,672+5.45 RP
Jul 26, 2026 15:02	ChinLL	CPPg++10.5.0	Success	22,340,862+5.45 RP
Jul 16, 2026 06:43	Fernando Antunez	CPPg++10.5.0	Success	104,540+95.66 RP
Jul 16, 2026 06:42	Fernando Antunez	CPPg++10.5.0	Error
Jul 15, 2026 02:14	Fernando Antunez	CPPg++10.5.0	Error
Jul 12, 2026 22:06	Ilya	CPPg++14.2.0	Success	58,610
Jul 12, 2026 22:02	Ilya	CPPclang++16.0.6	Success	58,532
Jul 12, 2026 22:01	Ilya	CPPclang++16.0.6	Success	58,413
Jul 12, 2026 21:59	Ilya	CPPclang++16.0.6	Error
Jul 12, 2026 21:57	Ilya	CPPclang++16.0.6	Error
Jul 12, 2026 21:56	Ilya	CPPclang++16.0.6	Error
Jul 12, 2026 21:52	Ilya	CPPclang++16.0.6	Error
Jul 12, 2026 19:22	Ilya	CPPclang++16.0.6	Success	58,637
Jul 12, 2026 19:19	Ilya	CPPclang++16.0.6	Success	58,459
Jul 12, 2026 19:17	Ilya	CPPclang++16.0.6	Success	58,697
Jul 12, 2026 19:13	Ilya	CPPclang++16.0.6	Success	58,832
Jul 12, 2026 19:11	Ilya	CPPclang++16.0.6	Success	21,525,713
Jul 12, 2026 19:06	Ilya	CPPclang++16.0.6	Error
Jul 12, 2026 19:05	Ilya	CPPclang++16.0.6	Success	58,767
Jul 12, 2026 19:03	Ilya	CPPclang++16.0.6	Success	58,856
Jul 12, 2026 19:01	Ilya	CPPclang++16.0.6	Success	58,545
Jul 12, 2026 18:58	Ilya	CPPclang++16.0.6	Success	58,510
Jul 10, 2026 21:58	Ilya	CPPclang++16.0.6	Success	91,754
Jul 10, 2026 21:41	Ilya	CPPclang++16.0.6	Success	58,459+5.00 RP
Jul 10, 2026 19:09	Genos0	CPPg++10.5.0	Success	329,891+29.86 RP
Jul 10, 2026 18:26	Genos0	CPPg++10.5.0	Success	22,240,508+5.45 RP
Jul 9, 2026 12:52	Ilya	CPPclang++16.0.6	Success	58,800
Jul 8, 2026 23:45	Ilya	CPPclang++16.0.6	Success	59,624
Jul 8, 2026 23:44	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 23:40	Ilya	CPPclang++16.0.6	Success	58,437
Jul 8, 2026 23:38	Ilya	CPPclang++16.0.6	Success	59,259
Jul 8, 2026 23:32	Ilya	CPPclang++16.0.6	Success	58,500
Jul 8, 2026 23:31	Ilya	CPPclang++18.1.3	Success	58,481
Jul 8, 2026 23:28	Ilya	CPPg++14.2.0	Success	58,775
Jul 8, 2026 23:28	Ilya	CPPclang++20.1.2	Error
Jul 8, 2026 23:28	Ilya	CPPg++13.3.0	Success	58,862
Jul 8, 2026 23:27	Ilya	CPPclang++16.0.6	Success	21,412,470
Jul 8, 2026 23:24	Ilya	CPPclang++16.0.6	Success	58,478
Jul 8, 2026 23:23	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 23:19	Ilya	CPPclang++16.0.6	Success	58,794
Jul 8, 2026 23:18	Ilya	CPPclang++16.0.6	Success	58,678
Jul 8, 2026 23:15	Ilya	CPPclang++16.0.6	Success	58,667
Jul 8, 2026 23:13	Ilya	CPPclang++16.0.6	Success	58,383+0.62 RP
Jul 8, 2026 23:08	Ilya	CPPclang++16.0.6	Success	21,471,737
Jul 8, 2026 23:04	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 23:03	Ilya	CPPclang++16.0.6	Success	58,667
Jul 8, 2026 22:58	Ilya	CPPclang++16.0.6	Success	21,437,729
Jul 8, 2026 22:57	Ilya	CPPclang++16.0.6	Success	21,574,089
Jul 8, 2026 22:50	Ilya	CPPclang++16.0.6	Success	58,724
Jul 8, 2026 22:46	Ilya	CPPclang++16.0.6	Success	21,399,045
Jul 8, 2026 22:41	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 22:35	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 22:31	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 22:03	Ilya	CPPclang++16.0.6	Success	58,754
Jul 8, 2026 22:00	Ilya	CPPclang++16.0.6	Success	58,664
Jul 8, 2026 21:58	Ilya	CPPclang++16.0.6	Success	21,425,645
Jul 8, 2026 21:54	Ilya	CPPclang++16.0.6	Success	58,683
Jul 8, 2026 21:53	Ilya	CPPclang++16.0.6	Success	58,594+0.11 RP
Jul 8, 2026 21:50	Ilya	CPPclang++16.0.6	Success	58,651
Jul 8, 2026 21:48	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 21:42	Ilya	CPPclang++16.0.6	Success	59,010
Jul 8, 2026 21:39	Ilya	CPPclang++16.0.6	Success	58,816
Jul 8, 2026 21:37	Ilya	CPPclang++16.0.6	Success	58,732
Jul 8, 2026 21:36	Ilya	CPPclang++16.0.6	Success	58,632+0.17 RP
Jul 8, 2026 21:31	Ilya	CPPclang++16.0.6	Success	58,689+0.61 RP
Jul 8, 2026 21:30	Ilya	CPPclang++16.0.6	Success	21,668,951
Jul 8, 2026 21:10	Ilya	CPPclang++16.0.6	Success	59,154
Jul 8, 2026 21:09	Ilya	CPPclang++16.0.6	Success	59,162
Jul 8, 2026 21:09	Ilya	CPPclang++16.0.6	Success	59,318
Jul 8, 2026 21:07	Ilya	CPPclang++16.0.6	Success	59,075
Jul 8, 2026 20:49	Ilya	CPPclang++16.0.6	Success	62,321
Jul 8, 2026 20:49	Ilya	CPPclang++16.0.6	Success	62,248
Jul 8, 2026 17:46	Ilya	CPPclang++16.0.6	Success	59,227
Jul 8, 2026 17:40	Ilya	CPPclang++16.0.6	Success	60,259
Jul 8, 2026 17:40	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 17:38	Ilya	CPPclang++16.0.6	Success	59,564
Jul 8, 2026 17:32	Ilya	CPPclang++16.0.6	Success	59,589
Jul 8, 2026 14:57	Ilya	CPPclang++16.0.6	Error
Jul 8, 2026 10:32	Ilya	CPPclang++16.0.6	Success	59,081
Jul 8, 2026 10:27	Ilya	CPPclang++16.0.6	Success	59,745
Jul 8, 2026 10:24	Ilya	CPPclang++16.0.6	Success	59,383
Jul 8, 2026 10:22	Ilya	CPPclang++16.0.6	Success	59,113
Jul 7, 2026 20:02	Victor Mercklé	CPPg++14.2.0	Success	71,732
Jul 7, 2026 19:32	Victor Mercklé	CPPg++14.2.0	Success	57,029
Jul 7, 2026 19:25	Victor Mercklé	CPPg++14.2.0	Success	67,635
Jul 7, 2026 19:20	Victor Mercklé	CPPg++14.2.0	Success	56,810

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