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	1:20.1.2-0ubuntu1~24.04.2	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.
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	3.0.13-0ubuntu3.9	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
Apr 21, 2026 16:37	olliecrow	CPPclang++18.1.3	Success	62,616
Apr 21, 2026 16:35	Charles Cabergs	CPPg++13.3.0	Success	70,764
Apr 21, 2026 16:30	olliecrow	CPPclang++18.1.3	Success	62,778
Apr 21, 2026 14:49	Charles Cabergs	CPPg++13.3.0	Error
Apr 21, 2026 10:20	olliecrow	CPPclang++18.1.3	Success	62,713
Apr 21, 2026 09:57	Charles Cabergs	CPPg++13.3.0	Success	70,713
Apr 21, 2026 09:43	Dominique Garmier	CPPg++13.3.0	Success	71,554
Apr 21, 2026 09:34	Dominique Garmier	CPPg++13.3.0	Success	71,264
Apr 21, 2026 08:04	Charles Cabergs	CPPg++13.3.0	Success	70,972
Apr 21, 2026 06:09	Charles Cabergs	CPPg++13.3.0	Success	70,843
Apr 21, 2026 04:16	Charles Cabergs	CPPg++13.3.0	Success	71,324
Apr 21, 2026 01:27	Taylor Dettling	RUSTrust-1.95.0	Success	294,197+33.99 RP
Apr 21, 2026 00:37	olliecrow	CPPclang++18.1.3	Success	64,040
Apr 21, 2026 00:00	olliecrow	CPPclang++18.1.3	Success	62,567
Apr 20, 2026 23:55	olliecrow	CPPg++10.5.0	Error
Apr 20, 2026 22:40	Charles Cabergs	CPPg++13.3.0	Success	70,959
Apr 20, 2026 19:35	Charles Cabergs	CPPg++13.3.0	Success	71,091
Apr 20, 2026 16:37	Ben	CPPg++13.3.0	Success	151,324+1.37 RP
Apr 20, 2026 16:35	Ben	CPPclang++18.1.3	Success	154,537+22.70 RP
Apr 20, 2026 16:31	Ben	CPPclang++20.1.2	Success	240,602
Apr 20, 2026 16:31	Ben	CPPg++13.3.0	Success	238,037+0.35 RP
Apr 20, 2026 16:31	Ben	CPPclang++18.1.3	Success	240,051+41.66 RP
Apr 20, 2026 14:35	olliecrow	ZIG0.14.0	Success	60,921
Apr 20, 2026 14:34	olliecrow	RUSTrust-1.94.0	Success	543,794
Apr 20, 2026 14:31	olliecrow	CPPg++13.3.0	Error
Apr 20, 2026 13:10	Dominique Garmier	CPPg++13.3.0	Success	70,294
Apr 20, 2026 13:09	Dominique Garmier	CPPg++13.3.0	Error
Apr 20, 2026 13:06	Dominique Garmier	CPPg++13.3.0	Error
Apr 20, 2026 12:38	Dominique Garmier	CPPg++13.3.0	Success	72,291
Apr 19, 2026 09:31	Charles Cabergs	CPPg++13.3.0	Success	70,616+3.71 RP
Apr 19, 2026 08:54	olliecrow	CPPclang++18.1.3	Success	74,473
Apr 19, 2026 08:54	olliecrow	CPPclang++18.1.3	Success	62,430
Apr 19, 2026 07:03	Charles Cabergs	CPPg++13.3.0	Success	72,516+0.12 RP
Apr 19, 2026 06:56	olliecrow	CPPclang++18.1.3	Success	62,522
Apr 19, 2026 06:54	olliecrow	CPPclang++18.1.3	Success	75,403
Apr 19, 2026 06:52	olliecrow	CPPclang++18.1.3	Success	62,859
Apr 19, 2026 06:20	olliecrow	CPPclang++18.1.3	Success	74,327
Apr 19, 2026 04:42	Charles Cabergs	CPPg++13.3.0	Success	72,657
Apr 19, 2026 03:00	olliecrow	CPPclang++18.1.3	Success	121,195
Apr 19, 2026 02:58	olliecrow	CPPg++13.3.0	Success	218,789
Apr 19, 2026 02:56	olliecrow	CPPg++13.3.0	Success	164,746
Apr 19, 2026 02:54	olliecrow	CPPg++13.3.0	Success	218,873
Apr 19, 2026 02:51	olliecrow	CPPg++13.3.0	Success	163,886
Apr 19, 2026 02:31	Charles Cabergs	CPPg++13.3.0	Success	72,581+5.11 RP
Apr 19, 2026 00:10	Charles Cabergs	CPPg++13.3.0	Success	75,389
Apr 18, 2026 21:54	Charles Cabergs	CPPg++13.3.0	Success	75,378+8.82 RP
Apr 18, 2026 17:39	Charles Cabergs	CPPg++13.3.0	Success	80,746+4.98 RP
Apr 18, 2026 15:21	Charles Cabergs	CPPg++13.3.0	Success	84,132+8.71 RP
Apr 18, 2026 13:04	Charles Cabergs	CPPg++13.3.0	Success	90,786+1.72 RP
Apr 18, 2026 06:12	Charles Cabergs	CPPg++13.3.0	Success	92,230+50.91 RP
Apr 17, 2026 21:16	Charles Cabergs	CPPg++13.3.0	Success	173,854+52.33 RP
Apr 17, 2026 18:14	Charles Cabergs	CPPg++13.3.0	Success	1,925,478+5.19 RP
Apr 16, 2026 21:47	olliecrow	CSHARP9.0.14	Success	167,149
Apr 16, 2026 21:21	olliecrow	RUSTrust-1.94.0	Success	110,403
Apr 16, 2026 21:01	olliecrow	ZIG0.14.0	Error
Apr 16, 2026 20:59	olliecrow	CPPclang++18.1.3	Success	132,438
Apr 16, 2026 20:54	olliecrow	GOgo1.26.1	Success	60,981
Apr 16, 2026 18:14	olliecrow	RUSTrust-1.94.0	Success	556,122
Apr 16, 2026 18:08	olliecrow	RUSTrust-1.94.0	Success	550,795
Apr 16, 2026 17:25	olliecrow	RUSTrust-1.94.0	Success	538,303
Apr 16, 2026 17:07	olliecrow	RUSTrust-1.94.0	Success	726,095
Apr 16, 2026 17:03	olliecrow	RUSTrust-1.94.0	Error
Apr 16, 2026 16:58	olliecrow	RUSTrust-1.94.0	Error
Apr 16, 2026 16:53	olliecrow	RUSTrust-1.94.0	Success	548,838
Apr 16, 2026 16:25	olliecrow	RUSTrust-1.94.0	Error
Apr 16, 2026 16:25	olliecrow	RUSTrust-1.94.0	Success	78,335
Apr 16, 2026 16:21	olliecrow	RUSTrust-1.94.0	Success	66,868
Apr 16, 2026 16:18	olliecrow	RUSTrust-1.94.0	Success	555,357
Apr 16, 2026 16:15	olliecrow	RUSTrust-1.94.0	Success	546,262
Apr 16, 2026 16:10	olliecrow	RUSTrust-1.94.0	Success	536,511
Apr 16, 2026 06:50	olliecrow	RUSTrust-1.94.0	Success	61,038
Apr 16, 2026 06:42	olliecrow	RUSTrust-1.94.0	Success	60,951
Apr 16, 2026 05:50	olliecrow	RUSTrust-1.94.0	Success	60,770+0.36 RP
Apr 16, 2026 05:30	olliecrow	RUSTrust-1.94.0	Success	60,935
Apr 16, 2026 05:26	olliecrow	RUSTrust-1.94.0	Success	60,905+0.18 RP
Apr 16, 2026 01:54	olliecrow	CPPg++13.3.0	Success	60,857
Apr 15, 2026 23:57	olliecrow	CPPclang++18.1.3	Success	62,338
Apr 15, 2026 23:37	olliecrow	CPPg++13.3.0	Success	60,638
Apr 15, 2026 12:42	olliecrow	CSHARP9.0.14	Success	69,127+3.58 RP
Apr 15, 2026 12:39	olliecrow	RUSTrust-1.94.0	Success	61,132
Apr 15, 2026 12:32	olliecrow	CPPclang++18.1.3	Success	94,868
Apr 14, 2026 21:02	olliecrow	ZIG0.14.0	Success	60,381+0.01 RP
Apr 9, 2026 18:14	olliecrow	GOgo1.26.2	Success	60,946+26.23 RP
Apr 9, 2026 18:09	olliecrow	CSHARP9.0.14	Success	70,881+0.52 RP
Apr 9, 2026 15:01	olliecrow	ZIG0.14.0	Success	60,386+23.70 RP
Apr 9, 2026 09:36	olliecrow	GOgo1.26.1	Success	264,265
Apr 9, 2026 09:32	olliecrow	GOgo1.26.1	Success	263,086
Apr 6, 2026 22:38	olliecrow	GOgo1.26.1	Error
Apr 6, 2026 22:36	olliecrow	GOgo1.26.1	Error
Apr 5, 2026 08:24	Cema	CPPg++13.3.0	Success	74,149+16.50 RP
Apr 2, 2026 00:41	olliecrow	CSHARP9.0.14	Success	166,492
Apr 1, 2026 21:22	olliecrow	ZIG0.14.0	Success	72,932
Apr 1, 2026 21:20	olliecrow	ZIG0.14.0	Success	72,732
Mar 31, 2026 23:36	olliecrow	CPPg++13.3.0	Error
Mar 30, 2026 16:20	Dominique Garmier	RUSTrust-1.94.1	Success	70,889
Mar 30, 2026 15:49	Dominique Garmier	RUSTrust-1.94.1	Success	70,957
Mar 30, 2026 14:22	Dominique Garmier	RUSTrust-1.94.1	Success	72,559
Mar 30, 2026 14:03	Dominique Garmier	RUSTrust-1.94.1	Success	70,700
Mar 30, 2026 13:33	Dominique Garmier	RUSTrust-1.94.1	Success	70,670
Mar 30, 2026 12:28	Dominique Garmier	RUSTrust-1.94.1	Success	70,832

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