Median

Find the median of 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 median value, printed as a decimal string. The median is defined as the element at index N/2 (i.e., a[50000000]) in the sorted array.

Restrictions:20s512Mb 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 25, 2026 04:49	Dominique Garmier	GOgo1.26.1	Success	14,255+26.70 RP
Mar 25, 2026 04:18	Dominique Garmier	GOgo1.26.1	Success	20,259
Mar 25, 2026 04:06	Dominique Garmier	CPPg++13.3.0	Success	14,109
Mar 25, 2026 04:04	Dominique Garmier	CPPg++13.3.0	Success	16,314
Mar 25, 2026 04:02	Dominique Garmier	CPPg++13.3.0	Success	12,554
Mar 25, 2026 03:37	Dominique Garmier	CPPclang++18.1.3	Success	16,278
Mar 25, 2026 03:07	Dominique Garmier	CPPg++13.3.0	Success	10,092
Mar 25, 2026 03:06	Dominique Garmier	CPPg++13.3.0	Success	10,423
Mar 25, 2026 02:23	Dominique Garmier	RUSTrust-1.94.0	Success	10,907
Mar 25, 2026 02:19	Dominique Garmier	GOgo1.26.1	Success	20,086
Mar 25, 2026 01:26	Dominique Garmier	CPPg++13.3.0	Error
Mar 25, 2026 01:25	Dominique Garmier	CPPg++13.3.0	Error
Mar 25, 2026 01:24	Dominique Garmier	CPPg++13.3.0	Error
Mar 25, 2026 01:01	Dominique Garmier	CPPg++13.3.0	Success	22,940
Mar 25, 2026 00:27	Dominique Garmier	RUSTrust-1.94.0	Success	27,309
Mar 25, 2026 00:26	Dominique Garmier	CSHARP9.0.14	Success	28,021
Mar 24, 2026 23:56	Dominique Garmier	CPPg++13.3.0	Success	99,793
Mar 24, 2026 23:54	Dominique Garmier	CPPclang++18.1.3	Success	11,457
Mar 24, 2026 23:50	Dominique Garmier	CPPg++13.3.0	Success	40,494
Mar 24, 2026 23:48	Dominique Garmier	CPPclang++18.1.3	Success	18,737
Mar 24, 2026 23:48	Dominique Garmier	CPPg++13.3.0	Success	10,098
Mar 24, 2026 23:47	Dominique Garmier	CPPclang++18.1.3	Success	10,111
Mar 24, 2026 23:45	Dominique Garmier	CPPclang++18.1.3	Success	12,429
Mar 24, 2026 23:18	Dominique Garmier	CPPg++13.3.0	Success	10,583
Mar 24, 2026 23:15	Dominique Garmier	CPPg++13.3.0	Success	19,977
Mar 24, 2026 22:49	Dominique Garmier	RUSTrust-1.94.0	Success	438,849
Mar 24, 2026 22:48	Dominique Garmier	RUSTrust-1.94.0	Error
Mar 24, 2026 22:16	Dominique Garmier	RUSTrust-1.94.0	Success	167,047
Mar 24, 2026 20:02	Arseniy Korobenko	CPPg++13.3.0	Success	118,299
Mar 24, 2026 19:44	Dominique Garmier	CPPg++13.3.0	Success	10,097
Mar 24, 2026 19:43	Dominique Garmier	CPPg++13.3.0	Success	18,411
Mar 24, 2026 19:20	Dominique Garmier	CPPg++13.3.0	Success	12,033
Mar 24, 2026 19:19	Dominique Garmier	CPPg++13.3.0	Success	10,129
Mar 24, 2026 19:17	Dominique Garmier	CPPg++13.3.0	Success	10,100
Mar 24, 2026 19:17	Dominique Garmier	CPPclang++18.1.3	Success	10,144
Mar 24, 2026 19:12	Dominique Garmier	CPPclang++18.1.3	Success	10,171
Mar 24, 2026 19:12	Dominique Garmier	CPPg++13.3.0	Success	10,142
Mar 24, 2026 19:11	Dominique Garmier	RUSTrust-1.94.0	Success	16,299
Mar 24, 2026 19:10	Dominique Garmier	RUSTrust-1.94.0	Success	10,022
Mar 24, 2026 19:09	Dominique Garmier	CPPclang++18.1.3	Success	10,136
Mar 24, 2026 19:08	Dominique Garmier	RUSTrust-1.94.0	Success	10,038
Mar 24, 2026 19:07	Dominique Garmier	CPPg++13.3.0	Success	10,190
Mar 24, 2026 19:06	Dominique Garmier	CPPclang++18.1.3	Success	10,365
Mar 24, 2026 19:06	Dominique Garmier	CPPg++13.3.0	Success	10,425
Mar 24, 2026 18:52	Dominique Garmier	GOgo1.26.1	Success	19,839
Mar 24, 2026 18:50	Dominique Garmier	RUSTrust-1.94.0	Success	10,099
Mar 24, 2026 18:29	Dominique Garmier	GOgo1.26.1	Success	19,597
Mar 24, 2026 17:51	Dominique Garmier	CPPclang++18.1.3	Success	14,244
Mar 24, 2026 17:25	Dominique Garmier	CPPg++13.3.0	Success	12,653
Mar 24, 2026 17:21	Dominique Garmier	CPPg++13.3.0	Success	20,892
Mar 24, 2026 17:00	Dominique Garmier	GOgo1.26.1	Success	23,745
Mar 24, 2026 16:47	Dominique Garmier	RUSTrust-1.94.0	Success	10,309
Mar 24, 2026 16:05	Dominique Garmier	CPPg++13.3.0	Success	16,704
Mar 24, 2026 16:05	Dominique Garmier	CPPclang++18.1.3	Success	12,471
Mar 24, 2026 15:22	Dominique Garmier	CPPg++13.3.0	Success	18,687
Mar 24, 2026 15:19	Dominique Garmier	CPPg++13.3.0	Success	18,525
Mar 24, 2026 15:09	Dominique Garmier	GOgo1.26.1	Success	20,481
Mar 24, 2026 15:07	Dominique Garmier	GOgo1.26.1	Success	19,671
Mar 24, 2026 14:58	Dominique Garmier	RUSTrust-1.94.0	Success	12,284
Mar 24, 2026 14:57	Dominique Garmier	RUSTrust-1.94.0	Success	13,066
Mar 24, 2026 14:55	Dominique Garmier	RUSTrust-1.94.0	Success	14,582
Mar 24, 2026 14:18	Dominique Garmier	RUSTrust-1.94.0	Success	10,283
Mar 24, 2026 14:18	Dominique Garmier	RUSTrust-1.94.0	Success	13,190
Mar 24, 2026 14:13	Dominique Garmier	CPPg++13.3.0	Success	21,761
Mar 24, 2026 14:13	Dominique Garmier	CPPg++13.3.0	Error
Mar 24, 2026 13:59	Arseniy Korobenko	CPPg++13.3.0	Success	99,345+100.66 RP
Mar 24, 2026 13:59	Arseniy Korobenko	CPPg++13.3.0	Error
Mar 24, 2026 13:57	Arseniy Korobenko	CPPg++13.3.0	Error
Mar 24, 2026 13:55	Arseniy Korobenko	CPPg++13.3.0	Error
Mar 24, 2026 13:53	Arseniy Korobenko	CPPg++13.3.0	Error
Mar 24, 2026 13:28	Dominique Garmier	CPPg++13.3.0	Success	18,630
Mar 24, 2026 13:26	Dominique Garmier	CPPg++13.3.0	Error
Mar 24, 2026 13:25	Dominique Garmier	CPPg++13.3.0	Success	10,309
Mar 24, 2026 13:24	Dominique Garmier	CPPg++13.3.0	Error
Mar 24, 2026 13:19	Dominique Garmier	CPPclang++18.1.3	Success	12,809
Mar 24, 2026 12:56	Dominique Garmier	RUSTrust-1.94.0	Success	314,846
Mar 24, 2026 12:50	Dominique Garmier	RUSTrust-1.94.0	Success	217,957
Mar 24, 2026 12:12	Dominique Garmier	CPPclang++18.1.3	Error
Mar 24, 2026 12:07	Dominique Garmier	CPPg++13.3.0	Success	95,128
Mar 24, 2026 12:07	Dominique Garmier	CPPclang++18.1.3	Success	10,410
Mar 24, 2026 12:07	Dominique Garmier	CPPclang++18.1.3	Success	11,110
Mar 24, 2026 11:37	Dominique Garmier	CPPg++13.3.0	Success	13,025
Mar 24, 2026 11:34	Dominique Garmier	CPPg++13.3.0	Success	22,446
Mar 24, 2026 10:53	Dominique Garmier	GOgo1.26.1	Success	16,016
Mar 24, 2026 10:38	Dominique Garmier	GOgo1.26.1	Success	14,819+5.42 RP
Mar 24, 2026 10:26	Dominique Garmier	RUSTrust-1.94.0	Success	10,063
Mar 24, 2026 10:13	Dominique Garmier	CPPg++13.3.0	Error
Mar 24, 2026 09:42	Dominique Garmier	CPPclang++18.1.3	Success	10,376
Mar 24, 2026 09:40	Dominique Garmier	CPPg++13.3.0	Success	13,220
Mar 24, 2026 09:40	Dominique Garmier	CPPg++13.3.0	Success	99,601
Mar 24, 2026 09:09	Dominique Garmier	GOgo1.26.1	Success	15,750
Mar 24, 2026 08:59	Dominique Garmier	RUSTrust-1.82.0	Success	10,093
Mar 24, 2026 08:25	Dominique Garmier	RUSTrust-1.94.0	Success	158,377
Mar 24, 2026 08:11	Dominique Garmier	CPPg++13.3.0	Success	16,769
Mar 24, 2026 08:11	Dominique Garmier	CPPg++13.3.0	Success	27,260
Mar 24, 2026 08:11	Dominique Garmier	CPPclang++18.1.3	Success	12,782
Mar 24, 2026 07:32	Dominique Garmier	CPPg++13.3.0	Success	10,484
Mar 24, 2026 07:31	Dominique Garmier	CPPg++13.3.0	Error
Mar 24, 2026 07:30	Dominique Garmier	CPPclang++18.1.3	Success	20,018
Mar 24, 2026 07:28	Dominique Garmier	CPPclang++18.1.3	Success	10,483

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