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 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
Jun 25, 2026 07:29	Victor Mercklé	CPPg++14.2.0	Success	57,178
Jun 25, 2026 07:24	Victor Mercklé	CPPg++14.2.0	Success	57,048+0.22 RP
Jun 25, 2026 06:58	Victor Mercklé	CPPg++14.2.0	Success	57,297
Jun 25, 2026 06:33	Victor Mercklé	CPPg++14.2.0	Success	57,083+0.04 RP
Jun 25, 2026 06:12	Victor Mercklé	CPPg++14.2.0	Success	57,091+2.24 RP
Jun 25, 2026 05:50	Victor Mercklé	CPPg++14.2.0	Success	57,459+1.76 RP
Jun 25, 2026 05:43	Victor Mercklé	CPPg++14.2.0	Success	58,010
Jun 25, 2026 05:21	Victor Mercklé	CPPg++14.2.0	Success	57,867+1.12 RP
Jun 25, 2026 04:56	Victor Mercklé	CPPg++14.2.0	Success	58,275
Jun 25, 2026 04:33	Victor Mercklé	CPPg++14.2.0	Success	58,245+0.18 RP
Jun 25, 2026 04:08	Victor Mercklé	CPPg++14.2.0	Success	108,743
Jun 25, 2026 03:42	Victor Mercklé	CPPg++14.2.0	Success	97,716
Jun 25, 2026 03:15	Victor Mercklé	CPPg++14.2.0	Success	58,345
Jun 25, 2026 02:45	Victor Mercklé	CPPg++14.2.0	Success	58,305+0.01 RP
Jun 25, 2026 02:40	Victor Mercklé	CPPg++14.2.0	Success	58,308+0.59 RP
Jun 25, 2026 02:21	Victor Mercklé	CPPg++14.2.0	Success	58,713
Jun 25, 2026 01:49	Victor Mercklé	CPPg++14.2.0	Success	63,089
Jun 25, 2026 01:31	Victor Mercklé	CPPg++14.2.0	Success	58,510+0.21 RP
Jun 25, 2026 01:05	Victor Mercklé	CPPg++14.2.0	Success	60,413
Jun 25, 2026 00:58	Victor Mercklé	CPPg++14.2.0	Success	97,170
Jun 25, 2026 00:50	Victor Mercklé	CPPg++14.2.0	Success	58,581+0.78 RP
Jun 25, 2026 00:45	Victor Mercklé	CPPg++14.2.0	Success	59,048
Jun 25, 2026 00:40	Victor Mercklé	CPPg++14.2.0	Success	59,848
Jun 25, 2026 00:06	Victor Mercklé	CPPg++14.2.0	Success	70,429
Jun 25, 2026 00:01	Victor Mercklé	CPPg++14.2.0	Success	68,397
Jun 24, 2026 23:56	Victor Mercklé	CPPg++14.2.0	Success	67,291
Jun 24, 2026 23:43	Victor Mercklé	CPPg++14.2.0	Success	69,962
Jun 24, 2026 23:38	Victor Mercklé	CPPg++14.2.0	Success	58,902
Jun 24, 2026 23:33	Victor Mercklé	CPPg++14.2.0	Success	59,089
Jun 24, 2026 23:29	Victor Mercklé	CPPg++14.2.0	Success	74,556
Jun 24, 2026 23:28	Ilya	CPPg++10.5.0	Success	22,302,905
Jun 24, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	71,167
Jun 24, 2026 23:20	Ilya	CPPg++10.5.0	Error
Jun 24, 2026 23:18	Ilya	CPPg++10.5.0	Success	22,363,967+0.45 RP
Jun 24, 2026 23:18	Victor Mercklé	CPPg++14.2.0	Success	76,589
Jun 24, 2026 23:16	Ilya	CPPg++10.5.0	Error
Jun 24, 2026 23:14	Victor Mercklé	CPPg++14.2.0	Success	58,851+10.50 RP
Jun 24, 2026 23:09	Victor Mercklé	CPPg++14.2.0	Success	71,418
Jun 24, 2026 23:03	Victor Mercklé	CPPg++14.2.0	Success	71,108
Jun 24, 2026 22:58	Victor Mercklé	CPPg++14.2.0	Success	73,059
Jun 24, 2026 22:53	Victor Mercklé	CPPg++14.2.0	Success	72,632
Jun 24, 2026 22:48	Victor Mercklé	CPPg++14.2.0	Success	71,148

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