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
May 21, 2026 18:32	M-Rochat	CPPg++13.3.0	Success	59,600
May 21, 2026 18:30	M-Rochat	CPPg++13.3.0	Success	61,172
May 21, 2026 18:28	M-Rochat	CPPg++13.3.0	Success	62,013
May 21, 2026 18:25	M-Rochat	CPPg++13.3.0	Success	59,556
May 18, 2026 18:43	M-Rochat	CPPg++13.3.0	Success	59,610
May 18, 2026 18:39	M-Rochat	CPPg++13.3.0	Success	59,645
May 18, 2026 18:38	M-Rochat	CPPg++13.3.0	Success	59,700
May 18, 2026 18:38	M-Rochat	CPPg++13.3.0	Success	59,651
May 18, 2026 18:35	M-Rochat	CPPg++13.3.0	Success	59,586
May 18, 2026 18:34	M-Rochat	CPPg++13.3.0	Success	59,591
May 18, 2026 18:33	M-Rochat	CPPg++13.3.0	Success	59,683
May 18, 2026 18:33	M-Rochat	CPPg++13.3.0	Success	59,518+0.25 RP
May 18, 2026 18:31	M-Rochat	CPPg++13.3.0	Success	59,605+0.17 RP
May 18, 2026 18:23	M-Rochat	CPPg++13.3.0	Success	59,705
May 18, 2026 18:23	M-Rochat	CPPg++13.3.0	Success	59,805
May 18, 2026 18:20	M-Rochat	CPPg++13.3.0	Success	59,667+0.01 RP
May 18, 2026 18:18	M-Rochat	CPPg++13.3.0	Success	59,721
May 18, 2026 18:17	M-Rochat	CPPg++13.3.0	Success	59,672+0.03 RP
May 18, 2026 18:16	M-Rochat	CPPg++13.3.0	Success	59,713
May 18, 2026 18:16	M-Rochat	CPPg++13.3.0	Success	59,751
May 18, 2026 18:15	M-Rochat	CPPg++13.3.0	Success	59,686
May 18, 2026 18:15	M-Rochat	CPPg++13.3.0	Success	60,991
May 18, 2026 18:12	M-Rochat	CPPg++13.3.0	Success	59,683+0.50 RP
May 18, 2026 18:12	M-Rochat	CPPg++13.3.0	Success	72,367
May 18, 2026 17:56	M-Rochat	CPPg++13.3.0	Success	59,997
May 18, 2026 17:43	M-Rochat	CPPg++13.3.0	Success	59,962
May 18, 2026 17:43	M-Rochat	CPPg++13.3.0	Success	59,886
May 18, 2026 17:20	M-Rochat	CPPg++13.3.0	Success	59,937
May 18, 2026 16:36	M-Rochat	CPPg++13.3.0	Success	59,916
May 18, 2026 08:32	M-Rochat	CPPg++13.3.0	Success	59,970
May 18, 2026 05:37	M-Rochat	CPPg++13.3.0	Success	59,945
May 18, 2026 05:30	M-Rochat	CPPg++13.3.0	Success	59,929
May 18, 2026 05:13	M-Rochat	CPPg++13.3.0	Success	59,867
May 18, 2026 05:13	M-Rochat	CPPg++13.3.0	Success	59,902+0.08 RP
May 18, 2026 05:13	M-Rochat	CPPg++13.3.0	Success	59,862+0.11 RP
May 18, 2026 03:27	M-Rochat	CPPclang++20.1.2	Success	64,524
May 18, 2026 03:27	M-Rochat	CPPg++10.5.0	Success	61,181
May 18, 2026 03:25	M-Rochat	CPPg++13.3.0	Success	59,929+0.95 RP
May 18, 2026 02:16	M-Rochat	CPPg++10.5.0	Success	64,018
May 18, 2026 02:12	M-Rochat	CPPg++13.3.0	Success	60,732
May 18, 2026 02:12	M-Rochat	CPPg++13.3.0	Success	63,018
May 18, 2026 00:54	M-Rochat	CPPg++13.3.0	Success	60,570
May 17, 2026 23:51	M-Rochat	CPPg++13.3.0	Success	61,589
May 17, 2026 23:51	M-Rochat	CPPg++13.3.0	Success	62,562
May 17, 2026 14:54	M-Rochat	CPPg++12.4.0	Success	60,510
May 17, 2026 14:53	M-Rochat	CPPg++11.5.0	Success	63,897
May 17, 2026 14:53	M-Rochat	CPPg++10.5.0	Success	64,024
May 17, 2026 12:09	M-Rochat	CPPg++13.3.0	Success	62,813
May 17, 2026 11:56	M-Rochat	CPPclang++20.1.2	Success	61,502
May 17, 2026 11:56	M-Rochat	CPPg++14.2.0	Success	60,443
May 17, 2026 11:56	M-Rochat	CPPclang++18.1.3	Success	61,486
May 17, 2026 11:53	M-Rochat	CPPg++13.3.0	Success	60,383
May 17, 2026 11:53	M-Rochat	CPPg++13.3.0	Success	60,356
May 17, 2026 11:53	M-Rochat	CPPg++13.3.0	Success	60,532
May 17, 2026 11:52	M-Rochat	CPPg++13.3.0	Success	60,272+0.30 RP
May 17, 2026 11:47	M-Rochat	CPPg++13.3.0	Success	68,164
May 17, 2026 11:47	M-Rochat	CPPg++13.3.0	Success	62,310
May 17, 2026 11:47	M-Rochat	CPPg++13.3.0	Success	60,581
May 17, 2026 11:44	M-Rochat	CPPg++13.3.0	Success	60,381+1.60 RP
May 17, 2026 11:44	M-Rochat	CPPg++13.3.0	Success	60,970
May 17, 2026 11:44	M-Rochat	CPPg++14.2.0	Success	61,205
May 17, 2026 11:40	M-Rochat	CPPclang++20.1.2	Success	62,732+7.38 RP
May 17, 2026 11:40	M-Rochat	CPPg++10.5.0	Success	66,945
May 17, 2026 11:40	M-Rochat	CPPg++13.3.0	Success	60,970+4.61 RP
May 17, 2026 11:38	M-Rochat	CPPg++10.5.0	Success	65,778+2.84 RP
May 17, 2026 11:38	M-Rochat	CPPg++10.5.0	Success	67,221
May 17, 2026 09:03	M-Rochat	CPPg++10.5.0	Success	67,159
May 17, 2026 08:31	M-Rochat	CPPg++10.5.0	Success	67,194
May 17, 2026 03:05	M-Rochat	CPPg++10.5.0	Success	67,029+0.01 RP
May 16, 2026 20:54	M-Rochat	CPPg++11.5.0	Success	67,259
May 16, 2026 20:54	M-Rochat	CPPg++12.4.0	Success	67,824
May 16, 2026 20:53	M-Rochat	CPPg++14.2.0	Success	67,878
May 16, 2026 17:47	M-Rochat	CPPg++10.5.0	Success	67,532
May 16, 2026 17:45	M-Rochat	CPPg++10.5.0	Success	67,035+1.43 RP
May 16, 2026 17:43	M-Rochat	CPPg++13.3.0	Success	68,816
May 16, 2026 16:42	M-Rochat	CPPg++13.3.0	Success	68,721
May 16, 2026 16:35	M-Rochat	CPPg++13.3.0	Success	67,737
May 16, 2026 16:31	M-Rochat	CPPclang++20.1.2	Success	67,683+12.35 RP
May 16, 2026 15:34	M-Rochat	CPPg++10.5.0	Success	73,943
May 16, 2026 13:58	M-Rochat	CPPg++13.3.0	Success	73,878
May 16, 2026 13:57	M-Rochat	CPPclang++20.1.2	Success	73,854+1.58 RP
May 16, 2026 08:04	M-Rochat	CPPclang++20.1.2	Success	75,975
May 16, 2026 07:11	M-Rochat	CPPclang++20.1.2	Success	74,724+0.11 RP
May 16, 2026 07:09	M-Rochat	CPPclang++18.1.3	Success	74,783+4.24 RP
May 16, 2026 07:07	M-Rochat	CPPg++10.5.0	Success	77,232+38.48 RP
May 16, 2026 01:04	M-Rochat	CPPg++13.3.0	Success	110,110
May 16, 2026 01:04	M-Rochat	CPPclang++20.1.2	Success	110,224
May 15, 2026 20:36	M-Rochat	CPPg++10.5.0	Success	109,894+43.80 RP
May 15, 2026 20:23	M-Rochat	CPPg++10.5.0	Success	211,883+47.20 RP
May 14, 2026 16:54	Josu San Martin	ZIG0.15.1	Success	110,164
May 12, 2026 01:34	Victor Mercklé	CPPg++14.2.0	Success	64,867
May 12, 2026 01:32	Victor Mercklé	CPPg++14.2.0	Success	64,437
May 12, 2026 01:28	Victor Mercklé	CPPg++14.2.0	Success	65,362
May 12, 2026 01:26	Victor Mercklé	CPPg++14.2.0	Success	64,370+0.48 RP
May 12, 2026 01:22	Victor Mercklé	CPPg++14.2.0	Success	64,686
May 12, 2026 01:10	Victor Mercklé	CPPg++14.2.0	Success	65,240
May 12, 2026 01:07	Victor Mercklé	CPPg++14.2.0	Success	65,237
May 12, 2026 01:05	Victor Mercklé	CPPg++14.2.0	Success	65,232
May 12, 2026 01:03	Victor Mercklé	CPPg++14.2.0	Success	65,110
May 12, 2026 01:00	Victor Mercklé	CPPg++14.2.0	Success	69,000

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