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
Mar 21, 2026 15:51	Dominique Garmier	RUSTrust-1.94.0	Success	97,449
Mar 21, 2026 15:51	olliecrow	CPPg++13.3.0	Success	85,170
Mar 21, 2026 15:50	izotoff	GOgo1.25.4	Success	115,795
Mar 21, 2026 15:31	izotoff	GOgo1.25.4	Success	115,797
Mar 21, 2026 15:29	izotoff	GOgo1.25.4	Success	115,808
Mar 21, 2026 15:28	izotoff	GOgo1.25.4	Success	115,795
Mar 21, 2026 15:08	izotoff	GOgo1.25.4	Success	116,846
Mar 21, 2026 15:02	izotoff	GOgo1.25.4	Success	115,765+3.38 RP
Mar 21, 2026 15:00	izotoff	GOgo1.25.4	Error
Mar 21, 2026 15:00	izotoff	GOgo1.25.4	Success	126,822
Mar 21, 2026 14:58	izotoff	GOgo1.25.4	Success	126,849
Mar 21, 2026 14:45	izotoff	GOgo1.25.4	Error
Mar 21, 2026 14:43	izotoff	GOgo1.25.4	Error
Mar 21, 2026 14:41	izotoff	GOgo1.25.4	Error
Mar 21, 2026 14:36	Dominique Garmier	RUSTrust-1.94.0	Success	1,938,262
Mar 21, 2026 14:21	izotoff	GOgo1.25.4	Error
Mar 21, 2026 14:05	Dominique Garmier	CPPclang++18.1.3	Success	72,581
Mar 21, 2026 14:00	izotoff	GOgo1.25.4	Success	120,505
Mar 21, 2026 13:57	izotoff	GOgo1.25.4	Error
Mar 21, 2026 13:46	izotoff	GOgo1.25.4	Error
Mar 21, 2026 13:41	izotoff	GOgo1.25.4	Error
Mar 21, 2026 13:21	izotoff	GOgo1.25.4	Error
Mar 21, 2026 13:14	izotoff	GOgo1.25.4	Error
Mar 21, 2026 13:13	izotoff	GOgo1.26.1	Error
Mar 21, 2026 13:04	izotoff	GOgo1.26.1	Error
Mar 21, 2026 13:01	izotoff	GOgo1.26.1	Error
Mar 21, 2026 12:27	Dominique Garmier	CPPclang++18.1.3	Success	72,557
Mar 21, 2026 12:27	Dominique Garmier	CPPg++13.3.0	Success	69,932+0.01 RP
Mar 21, 2026 12:25	Dominique Garmier	CPPg++13.3.0	Success	70,468
Mar 21, 2026 12:13	izotoff	GOgo1.26.1	Error
Mar 21, 2026 12:11	izotoff	GOgo1.26.1	Error
Mar 21, 2026 10:20	Dominique Garmier	CSHARP9.0.14	Success	10,771,376
Mar 21, 2026 09:26	Dominique Garmier	ZIG0.13.0	Success	1,082,486
Mar 21, 2026 05:22	olliecrow	GOgo1.26.1	Success	102,281
Mar 21, 2026 05:05	olliecrow	GOgo1.26.1	Success	102,276
Mar 21, 2026 04:50	olliecrow	GOgo1.26.1	Success	102,305
Mar 21, 2026 04:40	olliecrow	GOgo1.26.1	Success	102,311
Mar 21, 2026 04:30	Dominique Garmier	CPPg++13.3.0	Success	69,984
Mar 21, 2026 04:24	Josu San Martin	CPPg++13.3.0	Error
Mar 21, 2026 04:23	Josu San Martin	CPPg++13.3.0	Success	59,508+4.34 RP
Mar 21, 2026 04:13	olliecrow	GOgo1.26.1	Success	102,243
Mar 21, 2026 04:12	Dominique Garmier	CPPg++13.3.0	Success	73,086
Mar 21, 2026 03:57	olliecrow	GOgo1.26.1	Success	102,235
Mar 21, 2026 03:45	olliecrow	GOgo1.26.1	Success	102,235
Mar 21, 2026 03:26	olliecrow	GOgo1.26.1	Success	102,324
Mar 21, 2026 03:05	Dominique Garmier	CPPg++13.3.0	Success	70,027
Mar 21, 2026 03:03	Dominique Garmier	CPPclang++18.1.3	Success	512,576
Mar 21, 2026 02:47	olliecrow	GOgo1.26.1	Success	102,268
Mar 21, 2026 02:36	olliecrow	GOgo1.26.1	Success	102,322
Mar 21, 2026 02:14	olliecrow	GOgo1.26.1	Success	102,297
Mar 21, 2026 02:05	Dominique Garmier	GOgo1.26.1	Success	367,027
Mar 21, 2026 01:53	olliecrow	GOgo1.26.1	Success	102,276
Mar 21, 2026 01:31	olliecrow	GOgo1.26.1	Success	102,270
Mar 21, 2026 01:24	olliecrow	GOgo1.26.1	Success	102,281
Mar 21, 2026 00:35	olliecrow	GOgo1.26.1	Success	102,281
Mar 21, 2026 00:29	olliecrow	GOgo1.26.1	Success	102,254
Mar 21, 2026 00:00	olliecrow	GOgo1.26.1	Success	102,259
Mar 20, 2026 23:38	olliecrow	GOgo1.26.1	Success	102,262
Mar 20, 2026 23:24	olliecrow	GOgo1.26.1	Success	102,338
Mar 20, 2026 23:16	olliecrow	GOgo1.26.1	Success	102,305
Mar 20, 2026 23:13	olliecrow	GOgo1.26.1	Success	102,476
Mar 20, 2026 23:11	olliecrow	GOgo1.26.1	Success	103,076
Mar 20, 2026 23:07	olliecrow	GOgo1.26.1	Success	102,281
Mar 20, 2026 22:58	Dominique Garmier	RUSTrust-1.94.0	Success	1,927,122
Mar 20, 2026 22:54	olliecrow	GOgo1.26.1	Success	102,262
Mar 20, 2026 22:51	olliecrow	GOgo1.26.1	Success	102,303
Mar 20, 2026 22:41	olliecrow	GOgo1.26.1	Success	101,895
Mar 20, 2026 22:37	olliecrow	GOgo1.26.1	Success	102,319
Mar 20, 2026 22:33	Josu San Martin	CPPg++13.3.0	Success	61,084+3.57 RP
Mar 20, 2026 22:30	olliecrow	GOgo1.26.1	Error
Mar 20, 2026 22:23	olliecrow	GOgo1.26.1	Success	102,281
Mar 20, 2026 22:16	Josu San Martin	CPPg++13.3.0	Success	62,446+5.40 RP
Mar 20, 2026 22:14	olliecrow	GOgo1.26.1	Success	102,327
Mar 20, 2026 22:14	olliecrow	GOgo1.26.1	Success	102,608
Mar 20, 2026 22:07	olliecrow	GOgo1.26.1	Success	102,276
Mar 20, 2026 22:06	olliecrow	GOgo1.26.1	Success	101,700
Mar 20, 2026 22:00	olliecrow	GOgo1.26.1	Success	102,254
Mar 20, 2026 21:54	olliecrow	GOgo1.26.1	Success	102,324
Mar 20, 2026 21:51	olliecrow	GOgo1.26.1	Success	102,249
Mar 20, 2026 21:41	olliecrow	GOgo1.26.1	Success	102,284
Mar 20, 2026 21:32	olliecrow	GOgo1.26.1	Success	102,292
Mar 20, 2026 21:26	olliecrow	GOgo1.26.1	Success	102,281
Mar 20, 2026 21:20	Josu San Martin	CPPclang++18.1.3	Success	64,624+7.45 RP
Mar 20, 2026 21:19	Josu San Martin	CPPclang++18.1.3	Success	67,892+0.49 RP
Mar 20, 2026 21:19	Josu San Martin	CPPg++13.3.0	Success	68,576
Mar 20, 2026 21:17	olliecrow	GOgo1.26.1	Success	102,278
Mar 20, 2026 21:10	olliecrow	GOgo1.26.1	Success	102,486
Mar 20, 2026 21:06	olliecrow	GOgo1.26.1	Success	102,227
Mar 20, 2026 20:58	olliecrow	GOgo1.26.1	Success	102,232
Mar 20, 2026 20:54	olliecrow	GOgo1.26.1	Success	102,308
Mar 20, 2026 20:48	olliecrow	GOgo1.26.1	Success	102,357
Mar 20, 2026 20:44	olliecrow	GOgo1.26.1	Success	102,219
Mar 20, 2026 20:38	olliecrow	GOgo1.26.1	Success	102,192
Mar 20, 2026 20:30	olliecrow	GOgo1.26.1	Success	102,251
Mar 20, 2026 20:25	olliecrow	GOgo1.26.1	Success	101,824
Mar 20, 2026 20:16	olliecrow	GOgo1.26.1	Success	102,257
Mar 20, 2026 20:13	olliecrow	GOgo1.26.1	Success	102,278
Mar 20, 2026 20:08	olliecrow	GOgo1.26.1	Success	102,322
Mar 20, 2026 20:03	olliecrow	GOgo1.26.1	Success	101,273
Mar 20, 2026 20:00	olliecrow	GOgo1.26.1	Error

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