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
Sep 20, 2026 16:35	Andrew Epstein	CPPclang++20.1.2	Success	55,991
Sep 20, 2026 15:20	Andrew Epstein	RUSTrust-1.95.0	Success	55,978+0.88 RP
Sep 20, 2026 15:17	Andrew Epstein	CSHARP9.0.15	Success	56,743+5.59 RP
Sep 20, 2026 15:16	Andrew Epstein	ZIG0.15.1	Success	56,051+0.21 RP
Sep 20, 2026 15:15	Andrew Epstein	RUSTrust-1.95.0	Success	57,691
Sep 20, 2026 15:14	Andrew Epstein	GOgo1.26.2	Success	56,148+6.75 RP
Sep 20, 2026 15:12	Andrew Epstein	CPPclang++20.1.2	Success	56,029
Sep 20, 2026 15:07	Andrew Epstein	CPPclang++20.1.2	Success	56,064
Sep 20, 2026 15:05	Andrew Epstein	CPPclang++20.1.2	Success	56,797
Sep 20, 2026 15:03	Andrew Epstein	CPPclang++20.1.2	Success	1,784,691
Sep 20, 2026 15:00	Andrew Epstein	CPPclang++20.1.2	Success	56,589
Sep 20, 2026 14:57	Andrew Epstein	CPPclang++20.1.2	Success	1,847,670
Sep 20, 2026 14:54	Andrew Epstein	CPPclang++20.1.2	Success	56,697
Sep 20, 2026 14:46	Andrew Epstein	CPPg++14.2.0	Success	55,932+5.62 RP
Sep 20, 2026 14:44	Andrew Epstein	CPPg++14.2.0	Success	1,855,129
Sep 20, 2026 14:41	Andrew Epstein	CPPg++14.2.0	Success	57,500+29.03 RP
Sep 20, 2026 14:39	Andrew Epstein	CPPg++14.2.0	Success	910,872
Sep 19, 2026 13:37	Andrew Epstein	CPPg++14.2.0	Success	383,589
Sep 19, 2026 13:27	Andrew Epstein	CPPg++14.2.0	Success	91,667
Sep 19, 2026 13:23	Andrew Epstein	CPPg++14.2.0	Success	3,536,381
Sep 12, 2026 09:57	Haha Expert	CPPg++14.2.0	Success	67,856+0.05 RP
Sep 12, 2026 09:55	Haha Expert	CPPg++14.2.0	Success	68,405
Sep 12, 2026 09:52	Haha Expert	CPPg++14.2.0	Success	67,881+1.37 RP
Sep 12, 2026 09:50	Haha Expert	CPPg++14.2.0	Success	83,829
Sep 12, 2026 09:47	Haha Expert	CPPg++14.2.0	Success	68,516+17.17 RP
Sep 12, 2026 09:39	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 09:34	Haha Expert	CPPg++14.2.0	Success	85,978
Sep 12, 2026 09:30	Haha Expert	CPPg++14.2.0	Success	77,651+2.63 RP
Sep 12, 2026 09:27	Haha Expert	CPPg++14.2.0	Success	79,270+2.25 RP
Sep 12, 2026 09:25	Haha Expert	CPPg++14.2.0	Success	91,313
Sep 12, 2026 09:23	Haha Expert	CPPg++14.2.0	Success	80,710+14.46 RP
Sep 12, 2026 09:20	Haha Expert	CPPg++14.2.0	Success	91,370+46.88 RP
Sep 10, 2026 14:25	Tomislav Tunkovic	CPPg++14.2.0	Success	2,321,572
Sep 10, 2026 13:41	Tomislav Tunkovic	CPPg++14.2.0	Success	399,481
Sep 10, 2026 10:05	Tomislav Tunkovic	CPPg++14.2.0	Success	56,891
Sep 10, 2026 09:26	Tomislav Tunkovic	CPPg++14.2.0	Success	56,951
Sep 6, 2026 15:53	big blender	CPPg++10.5.0	Success	1,406,778+6.66 RP
Sep 6, 2026 15:34	big blender	CPPg++10.5.0	Success	22,407,240+0.45 RP
Sep 4, 2026 10:04	Victor Mercklé	CPPg++14.2.0	Success	56,335
Sep 4, 2026 09:10	Victor Mercklé	CPPg++14.2.0	Success	56,291
Sep 4, 2026 08:06	Victor Mercklé	CPPg++14.2.0	Success	56,289
Sep 4, 2026 07:18	Victor Mercklé	CPPg++14.2.0	Success	56,451
Aug 31, 2026 12:39	Victor Mercklé	CPPg++14.2.0	Success	56,510
Aug 31, 2026 12:35	Victor Mercklé	CPPg++14.2.0	Success	56,383
Aug 31, 2026 12:28	Victor Mercklé	CPPg++14.2.0	Success	56,464
Aug 31, 2026 12:24	Victor Mercklé	CPPg++14.2.0	Success	58,278
Aug 31, 2026 12:17	Victor Mercklé	CPPg++14.2.0	Success	63,197
Aug 31, 2026 12:03	Victor Mercklé	CPPg++14.2.0	Success	56,400
Aug 31, 2026 10:04	Victor Mercklé	CSHARP10.0.7	Success	58,602+5.05 RP
Aug 31, 2026 10:00	Victor Mercklé	GOgo1.26.2	Success	58,359+2.34 RP
Aug 31, 2026 09:58	Victor Mercklé	ZIG0.16.0	Success	56,118+2.71 RP
Aug 31, 2026 09:54	Victor Mercklé	RUSTrust-1.95.0	Success	56,254+5.70 RP
Aug 28, 2026 17:15	Victor Mercklé	CPPg++14.2.0	Success	56,208
Aug 28, 2026 17:13	Victor Mercklé	CPPg++14.2.0	Success	56,851
Aug 28, 2026 17:03	Victor Mercklé	CPPg++14.2.0	Success	64,027
Aug 28, 2026 17:00	Victor Mercklé	CPPg++14.2.0	Success	64,908
Aug 28, 2026 16:56	Victor Mercklé	CPPg++14.2.0	Success	56,278
Aug 28, 2026 16:51	Victor Mercklé	CPPg++14.2.0	Success	57,070
Aug 28, 2026 16:47	Victor Mercklé	CPPg++14.2.0	Success	57,397
Aug 28, 2026 16:42	Victor Mercklé	CPPg++14.2.0	Success	56,181
Aug 28, 2026 16:38	Victor Mercklé	CPPg++14.2.0	Success	57,981
Aug 28, 2026 16:35	Victor Mercklé	CPPg++14.2.0	Success	56,597
Aug 28, 2026 16:29	Victor Mercklé	CPPg++14.2.0	Success	56,332
Aug 28, 2026 16:24	Victor Mercklé	CPPg++14.2.0	Success	57,810
Aug 28, 2026 16:21	Victor Mercklé	CPPg++14.2.0	Success	57,478
Aug 28, 2026 16:19	Victor Mercklé	CPPg++14.2.0	Success	57,283
Aug 28, 2026 16:17	Victor Mercklé	CPPg++14.2.0	Success	56,164+2.54 RP
Aug 28, 2026 16:15	Victor Mercklé	CPPg++14.2.0	Success	56,567+1.03 RP
Aug 28, 2026 16:11	Victor Mercklé	CPPg++14.2.0	Success	57,210
Aug 28, 2026 16:04	Victor Mercklé	CPPg++14.2.0	Success	62,418
Aug 28, 2026 15:59	Victor Mercklé	CPPg++14.2.0	Success	57,581
Aug 28, 2026 15:46	Victor Mercklé	CPPg++14.2.0	Success	58,354
Aug 28, 2026 15:40	Victor Mercklé	CPPg++14.2.0	Success	57,327
Aug 28, 2026 15:24	Victor Mercklé	CPPg++14.2.0	Success	56,805
Aug 28, 2026 15:18	Victor Mercklé	CPPg++14.2.0	Success	56,827
Aug 28, 2026 15:06	Victor Mercklé	CPPg++14.2.0	Success	58,451
Aug 27, 2026 12:03	Haha Expert	CSHARP10.0.11	Success	159,843+2.91 RP
Aug 27, 2026 11:58	Haha Expert	CSHARP9.0.15	Error
Aug 27, 2026 11:48	Haha Expert	CSHARP9.0.15	Success	1,754,843
Aug 27, 2026 11:45	Haha Expert	CSHARP9.0.15	Error
Aug 24, 2026 01:20	Andrew Epstein	CPPg++14.2.0	Success	69,021+0.44 RP
Aug 23, 2026 15:44	Andrew Epstein	CPPg++14.2.0	Success	69,229+143.98 RP
Aug 17, 2026 12:24	Tomislav Tunkovic	GOgo1.26.2	Success	59,167+4.93 RP
Aug 17, 2026 12:22	Tomislav Tunkovic	CSHARP9.0.15	Success	60,389+15.84 RP
Aug 16, 2026 23:14	Tomislav Tunkovic	GOgo1.26.2	Success	292,637
Aug 16, 2026 23:14	Tomislav Tunkovic	ZIG0.15.1	Success	56,935+10.02 RP
Aug 16, 2026 23:13	Tomislav Tunkovic	RUSTrust-1.95.0	Success	58,118+1.15 RP
Aug 15, 2026 13:58	Tomislav Tunkovic	CPPg++14.2.0	Success	56,721+0.14 RP
Aug 15, 2026 13:52	Tomislav Tunkovic	CPPg++14.2.0	Success	56,745
Aug 15, 2026 13:48	Tomislav Tunkovic	CPPg++14.2.0	Success	56,745+0.01 RP
Aug 15, 2026 13:42	Tomislav Tunkovic	CPPg++14.2.0	Success	56,875
Aug 15, 2026 13:36	Tomislav Tunkovic	CPPg++14.2.0	Success	56,748+2.03 RP
Aug 14, 2026 23:40	Tomislav Tunkovic	CPPg++14.2.0	Success	816,602
Aug 14, 2026 23:07	Tomislav Tunkovic	CPPg++14.2.0	Success	57,410+0.12 RP
Aug 14, 2026 22:53	Tomislav Tunkovic	CPPg++14.2.0	Success	57,448+0.56 RP
Aug 14, 2026 22:34	Tomislav Tunkovic	CPPg++14.2.0	Success	1,060,462
Aug 14, 2026 22:18	Tomislav Tunkovic	CPPg++14.2.0	Success	57,632+6.77 RP
Aug 14, 2026 22:14	Tomislav Tunkovic	CPPg++14.2.0	Success	965,932
Aug 14, 2026 22:09	Tomislav Tunkovic	CPPg++14.2.0	Success	228,500
Aug 14, 2026 22:04	Tomislav Tunkovic	CPPg++14.2.0	Success	117,667

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