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
Jan 12, 2026 20:22	Josu San Martin	RUSTrust-1.92.0	Success	72,522
Jan 12, 2026 20:21	Josu San Martin	RUSTrust-1.92.0	Success	121,792
Jan 12, 2026 20:17	Josu San Martin	RUSTrust-1.92.0	Success	77,530
Jan 12, 2026 20:17	Josu San Martin	RUSTrust-1.92.0	Success	72,054
Jan 12, 2026 20:11	Josu San Martin	RUSTrust-1.92.0	Success	72,538
Jan 12, 2026 17:42	Yehor Bondar	CPPg++13.3.0	Success	1,044,849
Jan 12, 2026 17:38	Yehor Bondar	CPPg++13.3.0	Error
Jan 12, 2026 14:39	Josu San Martin	RUSTrust-1.92.0	Success	75,676
Jan 12, 2026 14:38	Josu San Martin	RUSTrust-1.92.0	Success	79,022
Jan 12, 2026 14:26	Josu San Martin	RUSTrust-1.92.0	Success	70,508
Jan 12, 2026 14:14	Josu San Martin	RUSTrust-1.92.0	Success	71,922
Jan 12, 2026 14:11	Josu San Martin	RUSTrust-1.92.0	Success	70,281+0.66 RP
Jan 12, 2026 13:39	Yehor Bondar	CPPg++13.3.0	Success	2,085,300
Jan 12, 2026 13:37	Yehor Bondar	CPPclang++18.1.3	Success	2,075,727
Jan 12, 2026 05:09	Josu San Martin	RUSTrust-1.92.0	Success	71,803
Jan 12, 2026 05:09	Josu San Martin	RUSTrust-1.92.0	Success	70,984
Jan 12, 2026 05:09	Josu San Martin	RUSTrust-1.92.0	Success	70,889
Jan 12, 2026 05:08	Josu San Martin	RUSTrust-1.92.0	Error
Jan 12, 2026 05:04	Josu San Martin	RUSTrust-1.92.0	Success	72,578
Jan 12, 2026 05:00	Josu San Martin	RUSTrust-1.92.0	Success	70,743
Jan 12, 2026 05:00	Josu San Martin	RUSTrust-1.92.0	Error
Jan 12, 2026 04:57	Josu San Martin	RUSTrust-1.92.0	Error
Jan 12, 2026 04:52	Josu San Martin	RUSTrust-1.92.0	Success	70,611+0.46 RP
Jan 12, 2026 04:49	Josu San Martin	RUSTrust-1.92.0	Success	71,030
Jan 12, 2026 04:49	Josu San Martin	ZIG0.14.0	Success	942,484
Jan 12, 2026 04:45	Josu San Martin	CPPg++13.3.0	Error
Jan 12, 2026 04:41	Josu San Martin	GOgo1.25.5	Success	72,543+21.12 RP
Jan 12, 2026 04:40	Josu San Martin	RUSTrust-1.92.0	Success	85,019
Jan 12, 2026 04:38	Josu San Martin	RUSTrust-1.92.0	Success	71,846
Jan 12, 2026 04:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 12, 2026 04:31	Josu San Martin	RUSTrust-1.92.0	Success	84,932
Jan 12, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Success	70,841+1.10 RP
Jan 12, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Success	81,965
Jan 12, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Success	82,176
Jan 12, 2026 04:23	Josu San Martin	RUSTrust-1.92.0	Success	71,397+2.24 RP
Jan 12, 2026 04:23	Josu San Martin	RUSTrust-1.92.0	Success	72,557+21.64 RP
Jan 12, 2026 04:16	Josu San Martin	CPPg++13.3.0	Success	86,338
Jan 12, 2026 04:15	Josu San Martin	CPPg++13.3.0	Success	86,073+43.75 RP
Jan 1, 2026 05:36	Keefe	CPPg++13.3.0	Success	75,916
Jan 1, 2026 05:34	Keefe	CPPg++13.3.0	Success	75,819
Jan 1, 2026 05:30	Keefe	CPPg++13.3.0	Error
Jan 1, 2026 05:25	Keefe	CPPg++13.3.0	Error
Jan 1, 2026 05:23	Keefe	CPPg++13.3.0	Success	74,478
Jan 1, 2026 05:23	Keefe	CPPclang++18.1.3	Success	76,665
Dec 30, 2025 00:41	Josu San Martin	RUSTrust-1.92.0	Success	167,559
Dec 30, 2025 00:34	Josu San Martin	RUSTrust-1.92.0	Success	138,073+0.53 RP
Dec 30, 2025 00:31	Josu San Martin	RUSTrust-1.92.0	Success	176,770
Dec 29, 2025 15:50	Josu San Martin	RUSTrust-1.92.0	Success	176,751
Dec 29, 2025 15:50	Josu San Martin	RUSTrust-1.92.0	Success	139,089+56.14 RP
Dec 29, 2025 15:50	Josu San Martin	RUSTrust-1.92.0	Success	634,786+15.75 RP
Nov 23, 2025 07:50	Rac	CPPg++13.3.0	Success	2,184,546
Nov 23, 2025 07:49	Rac	CPPg++13.3.0	Error
Nov 23, 2025 07:45	Rac	CPPg++13.3.0	Success	2,089,032+4.79 RP
Nov 21, 2025 03:07	Keefe	CPPclang++18.1.3	Success	165,973
Nov 21, 2025 03:05	Keefe	CPPclang++18.1.3	Error
Nov 19, 2025 18:03	Yuriy Lyfenko	CPPg++13.3.0	Success	59,630
Nov 10, 2025 18:54	izotoff	GOgo1.25.4	Success	128,262
Nov 10, 2025 18:53	izotoff	GOgo1.25.4	Success	125,411
Nov 10, 2025 18:52	izotoff	GOgo1.25.4	Success	126,781
Nov 10, 2025 18:48	izotoff	GOgo1.25.4	Success	128,641
Nov 10, 2025 18:46	izotoff	GOgo1.25.4	Success	128,392
Nov 10, 2025 18:45	izotoff	GOgo1.25.4	Success	130,976
Nov 10, 2025 16:19	izotoff	GOgo1.25.4	Success	120,827
Nov 10, 2025 15:38	izotoff	GOgo1.25.4	Success	121,114
Nov 10, 2025 15:35	izotoff	GOgo1.25.4	Success	120,476+0.01 RP
Nov 10, 2025 15:24	izotoff	GOgo1.25.4	Success	120,557
Nov 10, 2025 14:49	izotoff	GOgo1.24.7	Success	120,486+0.03 RP
Nov 10, 2025 14:44	izotoff	GOgo1.25.4	Success	120,532+28.52 RP
Nov 10, 2025 14:11	izotoff	GOgo1.25.4	Success	217,222
Nov 10, 2025 14:09	izotoff	GOgo1.25.4	Success	216,989
Nov 10, 2025 14:08	izotoff	GOgo1.25.4	Success	185,622
Nov 10, 2025 14:07	izotoff	GOgo1.18.1	Success	184,759
Nov 10, 2025 13:57	izotoff	GOgo1.11	Success	226,659
Nov 10, 2025 13:54	izotoff	GOgo1.25.4	Success	183,673+54.44 RP
Nov 10, 2025 13:26	izotoff	GOgo1.25.4	Error
Nov 10, 2025 13:20	izotoff	GOgo1.25.4	Error
Nov 9, 2025 16:05	Yehor Bondar	CPPg++13.3.0	Success	574,303+16.95 RP
Nov 9, 2025 16:01	Yehor Bondar	CPPg++13.3.0	Success	21,483,303+0.47 RP
Nov 8, 2025 08:15	AnSa	CPPg++13.3.0	Success	69,351+4.66 RP
Nov 8, 2025 08:03	AnSa	CPPg++13.3.0	Success	71,841
Nov 8, 2025 08:00	AnSa	CPPg++13.3.0	Success	72,849
Nov 7, 2025 17:18	Daniel Mastalerz	CPPg++13.3.0	Success	190,676
Nov 7, 2025 17:14	Daniel Mastalerz	CPPg++13.3.0	Success	165,565+60.40 RP
Oct 19, 2025 12:52	Aleksei Shahoika	CPPclang++18.1.3	Success	170,878
Oct 19, 2025 12:50	Aleksei Shahoika	CPPclang++18.1.3	Success	169,830
Oct 12, 2025 20:49	Martin Stensgård	CPPg++13.3.0	Success	107,705+92.38 RP
Oct 12, 2025 20:16	Martin Stensgård	CPPg++13.3.0	Success	21,434,878+0.47 RP
Oct 11, 2025 19:41	Aleksei Shahoika	CPPclang++18.1.3	Success	85,311
Oct 11, 2025 19:38	Aleksei Shahoika	CPPclang++18.1.3	Error
Oct 11, 2025 19:36	Aleksei Shahoika	CPPclang++18.1.3	Success	86,116
Sep 21, 2025 09:10	Cema	CPPg++13.3.0	Error
Sep 21, 2025 09:09	Cema	CPPg++13.3.0	Error
Sep 21, 2025 09:07	Cema	CPPg++13.3.0	Success	84,486+1.00 RP
Sep 21, 2025 09:05	Cema	CPPg++13.3.0	Error
Sep 21, 2025 09:03	Cema	CPPg++13.3.0	Error
Sep 21, 2025 09:00	Cema	CPPg++13.3.0	Error
Sep 21, 2025 08:35	Cema	CPPg++13.3.0	Success	816,919
Sep 20, 2025 11:55	Cema	CPPg++13.3.0	Success	122,024
Sep 20, 2025 11:42	Cema	CPPg++13.3.0	Success	116,578
Sep 13, 2025 20:01	Aleksei Shahoika	CPPclang++18.1.3	Success	170,665

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