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
Aug 2, 2022 22:22	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 21:22	Robert Burke	CPPg++9.3.0	Success	5,757+21.00 RP
Aug 2, 2022 21:19	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 21:18	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 21:02	Robert Burke	CPPg++9.3.0	Success	5,792+194.64 RP
Aug 2, 2022 21:01	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:59	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:56	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:52	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:52	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:50	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:40	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:37	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 20:31	Robert Burke	CPPg++9.3.0	Success	6,426
Aug 2, 2022 20:20	Robert Burke	CPPg++9.3.0	Success	6,138+152.32 RP
Aug 2, 2022 18:54	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:51	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:51	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:41	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:16	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:15	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:12	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 18:11	Yuriy Lyfenko	CPPg++9.3.0	Success	8,527
Aug 2, 2022 17:49	Yuriy Lyfenko	CPPg++9.3.0	Error
Aug 2, 2022 17:48	Yuriy Lyfenko	CPPclang++10.0.0	Success	6,975
Aug 2, 2022 16:51	Robert Burke	CPPg++9.3.0	Success	6,439+509.34 RP
Aug 2, 2022 16:50	Robert Burke	CPPg++9.3.0	Success	8,995+1'101.52 RP
Aug 2, 2022 16:48	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:41	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:33	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:30	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:25	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:24	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:22	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:17	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 16:16	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 15:45	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 15:37	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 15:36	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 15:19	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 15:12	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:48	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:39	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:39	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:35	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:15	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:12	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:08	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 14:01	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:59	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:57	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:57	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:55	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:54	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:52	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:50	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 13:49	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:20	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:19	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:18	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:16	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:13	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:12	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:11	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:08	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 12:00	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:59	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:56	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:55	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:53	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:52	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:51	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:50	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:30	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:29	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:28	Robert Burke	CPPg++9.3.0	Error
Aug 2, 2022 11:26	Robert Burke	CPPg++9.3.0	Error
Jul 21, 2022 14:29	Robert Burke	CPPg++9.3.0	Success	979,296+10.21 RP
Jul 21, 2022 08:41	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:40	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:37	Liam Powell	CPPg++9.3.0	Success	32,859+304.33 RP
Jul 21, 2022 08:34	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:27	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:26	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:25	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:24	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:23	Liam Powell	CPPg++9.3.0	Error
May 25, 2022 13:37	At-sushi	CPPg++9.3.0	Error
May 25, 2022 13:33	At-sushi	CPPg++9.3.0	Error
May 25, 2022 13:00	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:51	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:49	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:18	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:13	At-sushi	CPPg++9.3.0	Error
Jan 21, 2022 05:00	Karam Jameel Moore	CPPg++9.3.0	Success	955,936+10.46 RP
Nov 11, 2021 08:18	Ilya Aniskovets	CPPclang++10.0.0	Success	21,786
Nov 11, 2021 06:22	Sergey Stremin	RUSTrust-1.56.1	Success	312,289
Nov 11, 2021 06:22	Sergey Stremin	RUSTrust-1.56.1	Error
Nov 11, 2021 06:10	Sergey Stremin	RUSTrust-1.56.1	Success	12,780
Nov 1, 2021 13:45	picul	CPPclang++10.0.0	Error

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