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 20, 2021 13:04	Andrey Tsvetkov	GO	Success	107,057
Jun 20, 2021 13:02	Andrey Tsvetkov	GO	Error
Jun 20, 2021 13:00	Andrey Tsvetkov	GO	Success	102,400
Jun 20, 2021 12:53	Andrey Tsvetkov	GO	Success	104,213
Jun 20, 2021 12:49	Andrey Tsvetkov	GO	Success	113,423
Jun 20, 2021 12:47	Andrey Tsvetkov	GO	Success	97,031+2.63 RP
Jun 20, 2021 12:44	Andrey Tsvetkov	GO	Success	111,904
Jun 20, 2021 12:43	Andrey Tsvetkov	GO	Success	141,998
Jun 20, 2021 12:34	Andrey Tsvetkov	GO	Success	111,900
Jun 20, 2021 12:33	Andrey Tsvetkov	GO	Success	99,571+25.85 RP
Jun 20, 2021 12:28	Andrey Tsvetkov	GO	Success	134,087+1.30 RP
Jun 20, 2021 12:27	Andrey Tsvetkov	GO	Success	165,505
Jun 20, 2021 12:26	Andrey Tsvetkov	GO	Success	161,961
Jun 20, 2021 12:17	Andrey Tsvetkov	GO	Success	136,466+5.67 RP
Jun 20, 2021 12:16	Andrey Tsvetkov	GO	Success	147,921+6.02 RP
Jun 20, 2021 12:15	Andrey Tsvetkov	GO	Success	162,373+51.17 RP
Jun 20, 2021 11:59	Andrey Tsvetkov	GO	Error
Jun 20, 2021 11:08	Dmitry Dolgopolov	CPP	Error
Jun 20, 2021 11:06	Dmitry Dolgopolov	CPP	Error
Jun 20, 2021 11:05	Dmitry Dolgopolov	CPP	Error
Jun 20, 2021 11:03	Dmitry Dolgopolov	CPP	Error
Jun 20, 2021 11:00	Dmitry Dolgopolov	CPP	Error
Jun 20, 2021 11:00	Dmitry Dolgopolov	CPP	Error
Jun 20, 2021 10:36	Andrey Tsvetkov	GO	Error
Jun 20, 2021 10:17	Andrey Tsvetkov	GO	Error
Jun 20, 2021 09:59	Andrey Tsvetkov	GO	Error
Jun 20, 2021 09:40	Andrey Tsvetkov	GO	Error
Jun 20, 2021 09:04	Andrey Tsvetkov	GO	Error
Jun 19, 2021 21:37	alex3d	CPP	Success	136,959
Jun 19, 2021 21:35	alex3d	CPP	Success	137,683
Jun 19, 2021 21:31	alex3d	CPP	Success	128,156
Jun 19, 2021 21:30	alex3d	CPP	Success	136,138
Jun 19, 2021 21:28	alex3d	CPP	Success	129,454
Jun 19, 2021 20:14	alex3d	CPP	Success	114,189
Jun 19, 2021 20:08	alex3d	CPP	Success	104,566
Jun 19, 2021 20:04	alex3d	CPP	Success	115,411
Jun 19, 2021 20:00	alex3d	CPP	Success	121,036
Jun 19, 2021 19:54	alex3d	CPP	Success	117,308
Jun 19, 2021 13:37	alex3d	CPP	Success	107,915
Jun 19, 2021 13:29	alex3d	CPP	Success	181,178
Jun 19, 2021 13:28	alex3d	CPP	Success	85,198+0.92 RP
Jun 19, 2021 13:26	alex3d	CPP	Success	98,013
Jun 19, 2021 13:23	alex3d	CPP	Success	96,788
Jun 19, 2021 13:20	alex3d	CPP	Success	85,869+32.20 RP
Jun 19, 2021 13:19	alex3d	CPP	Success	118,687+7.35 RP
Jun 19, 2021 13:19	alex3d	CPP	Success	130,024+66.55 RP
Jun 19, 2021 13:17	alex3d	CPP	Success	1,010,647
Jun 19, 2021 13:15	alex3d	CPP	Success	1,001,956
Jun 19, 2021 13:14	alex3d	CPP	Success	965,477+10.36 RP
Jun 19, 2021 10:44	Dmitry Dolgopolov	CPP	Success	84,067
Jun 19, 2021 10:44	Dmitry Dolgopolov	CPP	Error
Jun 19, 2021 10:43	Dmitry Dolgopolov	CPP	Error
Jun 19, 2021 10:41	Dmitry Dolgopolov	CPP	Error
Jun 19, 2021 10:37	Dmitry Dolgopolov	CPP	Error
Jun 19, 2021 10:08	Dmitry Dolgopolov	CPP	Success	57,126
Jun 19, 2021 10:07	Dmitry Dolgopolov	CPP	Success	66,997
Jun 19, 2021 10:05	Dmitry Dolgopolov	CPP	Success	65,271
Jun 19, 2021 10:03	Dmitry Dolgopolov	CPP	Success	160,209
Jun 19, 2021 10:01	Dmitry Dolgopolov	CPP	Success	96,856
Jun 19, 2021 10:01	Dmitry Dolgopolov	CPP	Success	254,352
Jun 19, 2021 10:00	Dmitry Dolgopolov	CPP	Success	519,752
Jun 19, 2021 09:57	Dmitry Dolgopolov	CPP	Error
Jun 19, 2021 09:56	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:41	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:38	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:37	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:32	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:31	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:31	Dmitry Dolgopolov	CPP	Error
Jun 17, 2021 09:23	Dmitry Dolgopolov	CPP	Error
Jun 16, 2021 09:24	Dmitry Dolgopolov	CPP	Error
Jun 16, 2021 09:22	Dmitry Dolgopolov	CPP	Error
Jun 16, 2021 09:21	Dmitry Dolgopolov	CPP	Error
Jun 16, 2021 09:21	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 19:18	Sergey Stremin	RUST	Success	14,579
Jun 15, 2021 19:17	Sergey Stremin	RUST	Success	14,557+350.36 RP
Jun 15, 2021 19:16	Sergey Stremin	RUST	Success	23,743
Jun 15, 2021 17:02	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 17:00	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:58	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:57	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:56	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:56	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:55	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:54	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:54	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:53	Dmitry Dolgopolov	CPP	Success	38,569+161.81 RP
Jun 15, 2021 16:52	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:48	Sergey Stremin	RUST	Success	31,638
Jun 15, 2021 16:41	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:40	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:39	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:38	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:38	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 16:36	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 15:47	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 15:44	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 15:43	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 15:42	Dmitry Dolgopolov	CPP	Error
Jun 15, 2021 15:41	Dmitry Dolgopolov	CPP	Error

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