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
Oct 11, 2026 22:21	highload-churner	CPPg++13.3.0	Success	55,154
Oct 11, 2026 20:54	highload-churner	CPPg++13.3.0	Success	57,259
Oct 11, 2026 20:01	highload-churner	CPPg++13.3.0	Success	55,132
Oct 11, 2026 19:44	highload-churner	CPPg++13.3.0	Success	55,645
Oct 11, 2026 19:22	highload-churner	CPPg++13.3.0	Success	55,110
Oct 11, 2026 18:54	highload-churner	CPPg++13.3.0	Success	129,800
Oct 11, 2026 18:05	highload-churner	CPPg++13.3.0	Success	55,086+0.09 RP
Oct 11, 2026 17:14	highload-churner	CPPg++13.3.0	Success	55,251
Oct 11, 2026 16:38	highload-churner	CPPg++13.3.0	Success	55,113+0.19 RP
Oct 11, 2026 16:03	highload-churner	CPPg++13.3.0	Success	55,240
Oct 11, 2026 15:28	highload-churner	CPPg++13.3.0	Success	55,170+0.19 RP
Oct 11, 2026 14:18	highload-churner	CPPg++13.3.0	Success	55,743
Oct 11, 2026 13:54	highload-churner	CPPg++13.3.0	Success	55,756
Oct 11, 2026 07:18	highload-churner	CPPclang++18.1.3	Success	55,291
Oct 11, 2026 07:10	highload-churner	CPPclang++18.1.3	Success	55,262
Oct 11, 2026 06:04	highload-churner	CPPclang++18.1.3	Success	55,232
Oct 11, 2026 05:49	highload-churner	CPPclang++18.1.3	Success	55,229+0.54 RP
Oct 11, 2026 05:28	highload-churner	CPPclang++18.1.3	Success	55,394+0.41 RP
Oct 11, 2026 05:19	highload-churner	CPPclang++18.1.3	Success	55,521+0.52 RP
Oct 11, 2026 04:47	highload-churner	CPPclang++18.1.3	Success	55,783
Oct 11, 2026 04:20	highload-churner	CPPclang++18.1.3	Success	55,681+0.16 RP
Oct 11, 2026 03:51	highload-churner	CPPclang++18.1.3	Success	55,732+0.56 RP
Oct 11, 2026 03:37	highload-churner	CPPclang++18.1.3	Success	55,905+0.98 RP
Oct 11, 2026 03:02	highload-churner	CPPclang++18.1.3	Success	56,232
Oct 10, 2026 00:01	highload-churner	CPPclang++18.1.3	Success	56,245
Oct 9, 2026 23:41	highload-churner	CPPclang++20.1.2	Success	56,494
Oct 9, 2026 23:14	highload-churner	CPPclang++18.1.3	Success	56,213+0.71 RP
Oct 9, 2026 22:55	highload-churner	CPPclang++18.1.3	Success	56,527
Oct 9, 2026 22:23	highload-churner	CPPclang++18.1.3	Success	56,472
Oct 9, 2026 22:13	highload-churner	CPPclang++18.1.3	Success	56,437+0.15 RP
Oct 9, 2026 21:36	highload-churner	CPPclang++18.1.3	Success	56,518
Oct 9, 2026 21:17	highload-churner	CPPclang++18.1.3	Success	63,472
Oct 9, 2026 20:31	highload-churner	CPPclang++18.1.3	Success	58,564
Oct 9, 2026 18:10	highload-churner	CPPclang++18.1.3	Success	56,486+3.00 RP
Oct 9, 2026 18:04	janwww	CPPg++14.2.0	Success	63,086+158.05 RP
Oct 9, 2026 17:49	highload-churner	CPPg++14.2.0	Success	57,702
Oct 9, 2026 17:33	Karthik Reddy	CSHARP9.0.18	Success	53,991
Oct 9, 2026 17:25	highload-churner	CPPg++14.2.0	Success	57,745
Oct 9, 2026 16:06	Karthik Reddy	CSHARP9.0.18	Success	53,989
Oct 9, 2026 15:25	Karthik Reddy	CSHARP9.0.18	Success	55,040
Oct 9, 2026 14:49	Karthik Reddy	CSHARP9.0.18	Success	54,035
Oct 9, 2026 14:05	highload-churner	CPPg++14.2.0	Success	59,013
Oct 9, 2026 13:57	highload-churner	CPPg++14.2.0	Success	57,459+2.36 RP
Oct 9, 2026 13:34	highload-churner	CPPg++14.2.0	Success	59,200
Oct 9, 2026 13:18	highload-churner	CPPg++14.2.0	Success	58,248+27.92 RP
Oct 9, 2026 13:17	highload-churner	CPPg++14.2.0	Success	69,562+143.76 RP
Oct 9, 2026 11:40	Karthik Reddy	RUSTrust-1.95.0	Success	53,745+0.09 RP
Oct 9, 2026 10:44	Karthik Reddy	RUSTrust-1.95.0	Success	53,810
Oct 9, 2026 10:18	Karthik Reddy	RUSTrust-1.95.0	Success	53,772
Oct 9, 2026 08:48	Karthik Reddy	RUSTrust-1.95.0	Success	53,783
Oct 9, 2026 08:26	Karthik Reddy	CPPclang++18.1.3	Success	53,910
Oct 9, 2026 08:17	Karthik Reddy	GOgo1.26.2	Success	53,935+0.03 RP
Oct 9, 2026 08:13	Karthik Reddy	ZIG0.15.1	Success	53,735+0.19 RP
Oct 9, 2026 08:12	Karthik Reddy	RUSTrust-1.95.0	Success	54,089
Oct 9, 2026 07:22	Karthik Reddy	RUSTrust-1.95.0	Success	53,810
Oct 6, 2026 08:21	janwww	CPPg++14.2.0	Success	21,433,116+0.47 RP
Oct 2, 2026 21:34	Karthik Reddy	CPPclang++18.1.3	Success	53,621+187.15 RP
Oct 2, 2026 21:28	Karthik Reddy	CPPclang++18.1.3	Error
Oct 2, 2026 13:33	C21	CPPclang++20.1.2	Success	68,086+146.87 RP
Sep 26, 2026 19:32	Kevin Heavey	CSHARP9.0.18	Success	53,824+9.56 RP
Sep 26, 2026 19:10	Kevin Heavey	GOgo1.26.2	Success	53,943+7.28 RP
Sep 26, 2026 19:09	Kevin Heavey	ZIG0.15.1	Success	53,791+7.50 RP
Sep 26, 2026 19:09	Kevin Heavey	RUSTrust-1.95.0	Success	53,770+7.48 RP
Sep 25, 2026 21:20	Kevin Heavey	CPPg++13.3.0	Success	53,810+1.02 RP
Sep 24, 2026 19:01	Kevin Heavey	CPPg++13.3.0	Success	53,959+0.08 RP
Sep 24, 2026 19:01	Kevin Heavey	CPPg++13.3.0	Success	53,970+0.92 RP
Sep 24, 2026 18:58	Kevin Heavey	CPPg++13.3.0	Error
Sep 24, 2026 18:56	Kevin Heavey	CPPg++13.3.0	Success	54,105+190.87 RP
Sep 23, 2026 18:26	Matthias Görgens	CPPclang++19.1.1	Success	72,189+138.53 RP
Sep 20, 2026 16:35	Andrew Epstein	CPPclang++20.1.2	Success	55,991
Sep 20, 2026 15:20	Andrew Epstein	RUSTrust-1.95.0	Success	55,978+0.88 RP
Sep 20, 2026 15:17	Andrew Epstein	CSHARP9.0.15	Success	56,743+5.59 RP
Sep 20, 2026 15:16	Andrew Epstein	ZIG0.15.1	Success	56,051+0.21 RP
Sep 20, 2026 15:15	Andrew Epstein	RUSTrust-1.95.0	Success	57,691
Sep 20, 2026 15:14	Andrew Epstein	GOgo1.26.2	Success	56,148+6.75 RP
Sep 20, 2026 15:12	Andrew Epstein	CPPclang++20.1.2	Success	56,029
Sep 20, 2026 15:07	Andrew Epstein	CPPclang++20.1.2	Success	56,064
Sep 20, 2026 15:05	Andrew Epstein	CPPclang++20.1.2	Success	56,797
Sep 20, 2026 15:03	Andrew Epstein	CPPclang++20.1.2	Success	1,784,691
Sep 20, 2026 15:00	Andrew Epstein	CPPclang++20.1.2	Success	56,589
Sep 20, 2026 14:57	Andrew Epstein	CPPclang++20.1.2	Success	1,847,670
Sep 20, 2026 14:54	Andrew Epstein	CPPclang++20.1.2	Success	56,697
Sep 20, 2026 14:46	Andrew Epstein	CPPg++14.2.0	Success	55,932+5.62 RP
Sep 20, 2026 14:44	Andrew Epstein	CPPg++14.2.0	Success	1,855,129
Sep 20, 2026 14:41	Andrew Epstein	CPPg++14.2.0	Success	57,500+29.03 RP
Sep 20, 2026 14:39	Andrew Epstein	CPPg++14.2.0	Success	910,872
Sep 19, 2026 13:37	Andrew Epstein	CPPg++14.2.0	Success	383,589
Sep 19, 2026 13:27	Andrew Epstein	CPPg++14.2.0	Success	91,667
Sep 19, 2026 13:23	Andrew Epstein	CPPg++14.2.0	Success	3,536,381
Sep 12, 2026 09:57	Haha Expert	CPPg++14.2.0	Success	67,856+0.05 RP
Sep 12, 2026 09:55	Haha Expert	CPPg++14.2.0	Success	68,405
Sep 12, 2026 09:52	Haha Expert	CPPg++14.2.0	Success	67,881+1.37 RP
Sep 12, 2026 09:50	Haha Expert	CPPg++14.2.0	Success	83,829
Sep 12, 2026 09:47	Haha Expert	CPPg++14.2.0	Success	68,516+17.17 RP
Sep 12, 2026 09:39	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 09:34	Haha Expert	CPPg++14.2.0	Success	85,978
Sep 12, 2026 09:30	Haha Expert	CPPg++14.2.0	Success	77,651+2.63 RP
Sep 12, 2026 09:27	Haha Expert	CPPg++14.2.0	Success	79,270+2.25 RP
Sep 12, 2026 09:25	Haha Expert	CPPg++14.2.0	Success	91,313
Sep 12, 2026 09:23	Haha Expert	CPPg++14.2.0	Success	80,710+14.46 RP

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