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	1:20.1.2-0ubuntu1~24.04.2	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
Jun 12, 2021 08:52	Dmitry Dolgopolov	CPP	Success	106,812
Jun 12, 2021 08:52	Dmitry Dolgopolov	CPP	Success	104,739
Jun 12, 2021 08:51	Dmitry Dolgopolov	CPP	Success	102,603+5.37 RP
Jun 12, 2021 08:50	Dmitry Dolgopolov	CPP	Success	107,623+92.92 RP
Jun 11, 2021 22:16	Andrey Tsvetkov	GO	Error
Jun 11, 2021 22:13	Andrey Tsvetkov	GO	Error
Jun 11, 2021 22:07	Andrey Tsvetkov	GO	Error
Jun 11, 2021 22:04	Andrey Tsvetkov	GO	Error
Jun 11, 2021 21:38	Andrey Tsvetkov	GO	Error
Jun 11, 2021 20:19	Yuriy Lyfenko	CPP	Success	122,905
Jun 11, 2021 20:17	Yuriy Lyfenko	CPP	Success	122,947
Jun 11, 2021 20:15	Yuriy Lyfenko	CPP	Success	127,126
Jun 11, 2021 20:12	Yuriy Lyfenko	CPP	Success	124,730
Jun 11, 2021 20:11	Yuriy Lyfenko	CPP	Success	130,926
Jun 11, 2021 20:10	Yuriy Lyfenko	CPP	Success	127,126
Jun 11, 2021 20:08	Yuriy Lyfenko	CPP	Success	115,549
Jun 11, 2021 20:06	Yuriy Lyfenko	CPP	Success	119,693
Jun 11, 2021 20:04	Yuriy Lyfenko	CPP	Success	106,006
Jun 11, 2021 19:53	Yuriy Lyfenko	CPP	Success	103,469+5.84 RP
Jun 11, 2021 19:51	Yuriy Lyfenko	CPP	Success	107,876
Jun 11, 2021 19:39	Yuriy Lyfenko	CPP	Success	106,688+4.24 RP
Jun 11, 2021 19:38	Andrey Tsvetkov	GO	Error
Jun 11, 2021 19:37	Yuriy Lyfenko	CPP	Success	124,210
Jun 11, 2021 19:35	Yuriy Lyfenko	CPP	Success	120,015
Jun 11, 2021 19:34	Yuriy Lyfenko	CPP	Success	121,824
Jun 11, 2021 19:33	Yuriy Lyfenko	CPP	Success	114,210
Jun 11, 2021 19:32	Yuriy Lyfenko	CPP	Success	113,644
Jun 11, 2021 19:31	Yuriy Lyfenko	CPP	Success	130,672
Jun 11, 2021 19:28	Yuriy Lyfenko	CPP	Success	115,929
Jun 11, 2021 19:27	Yuriy Lyfenko	CPP	Success	109,156+16.48 RP
Jun 11, 2021 19:26	Yuriy Lyfenko	CPP	Success	119,938+6.50 RP
Jun 11, 2021 19:25	Yuriy Lyfenko	CPP	Success	129,817
Jun 11, 2021 19:25	Yuriy Lyfenko	CPP	Success	130,347
Jun 11, 2021 19:22	Yuriy Lyfenko	CPP	Success	124,805+91.36 RP
Jun 11, 2021 19:21	Yuriy Lyfenko	CPP	Success	301,161
Jun 11, 2021 19:14	Yuriy Lyfenko	CPP	Success	290,280+48.20 RP
Jun 11, 2021 19:12	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 19:02	Andrey Tsvetkov	GO	Error
Jun 11, 2021 19:01	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:59	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:58	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:56	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:55	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:54	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:53	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:50	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:50	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:47	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:46	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:44	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:43	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:42	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:38	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:38	Yuriy Lyfenko	CPP	Error
Jun 11, 2021 18:35	Andrey Tsvetkov	GO	Error
Jun 11, 2021 18:34	Yuriy Lyfenko	CPP	Success	966,146+10.35 RP

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