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
Nov 26, 2022 17:20	Bernard Teo	CPPg++9.3.0	Error
Nov 26, 2022 17:18	Bernard Teo	CPPg++9.3.0	Error
Nov 25, 2022 18:21	Bernard Teo	CPPg++9.3.0	Error
Nov 25, 2022 18:16	Bernard Teo	CPPg++9.3.0	Error
Nov 25, 2022 17:31	Bernard Teo	CPPg++9.3.0	Error
Nov 25, 2022 17:13	Bernard Teo	CPPg++9.3.0	Error
Nov 25, 2022 16:44	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 16:52	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 16:50	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 16:48	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 16:02	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 15:57	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 15:53	Bernard Teo	CPPg++9.3.0	Success	5,790+1'632.70 RP
Nov 22, 2022 15:52	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 15:48	Bernard Teo	CPPg++9.3.0	Error
Nov 22, 2022 08:22	Robert Burke	CPPg++9.3.0	Error
Nov 21, 2022 17:45	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 17:40	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 17:37	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 17:32	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:23	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:21	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:20	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:19	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:15	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:13	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:08	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 16:00	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 15:52	Bernard Teo	CPPg++9.3.0	Error
Nov 21, 2022 15:51	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:47	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:45	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:42	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:41	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:37	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:37	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:36	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:36	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:31	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:29	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:26	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 16:21	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:29	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:25	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:22	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:08	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:07	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:05	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:02	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 07:00	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 06:58	Bernard Teo	CPPg++9.3.0	Error
Nov 20, 2022 06:38	Bernard Teo	CPPg++9.3.0	Error
Nov 19, 2022 18:04	Bernard Teo	CPPg++9.3.0	Error
Nov 19, 2022 18:01	Bernard Teo	CPPg++9.3.0	Error
Nov 19, 2022 17:59	Bernard Teo	CPPg++9.3.0	Error
Nov 19, 2022 17:51	Bernard Teo	CPPg++9.3.0	Error
Nov 19, 2022 17:48	Bernard Teo	CPPg++9.3.0	Error
Nov 19, 2022 17:43	Bernard Teo	CPPg++9.3.0	Error
Oct 24, 2022 16:05	Kenneth Maples	CPPg++9.3.0	Success	6,358+22.19 RP
Oct 24, 2022 16:04	Kenneth Maples	CPPg++9.3.0	Success	6,449+69.80 RP
Oct 24, 2022 16:02	Kenneth Maples	CPPg++9.3.0	Success	6,753+54.70 RP
Oct 24, 2022 15:55	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:53	Kenneth Maples	CPPg++9.3.0	Success	7,012+400.38 RP
Oct 24, 2022 15:51	Kenneth Maples	CPPg++9.3.0	Success	9,749+712.69 RP
Oct 24, 2022 15:48	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:47	Kenneth Maples	CPPg++9.3.0	Success	46,062
Oct 24, 2022 15:45	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:43	Kenneth Maples	CPPg++9.3.0	Success	43,865
Oct 24, 2022 15:40	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:39	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:37	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:36	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:35	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:34	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:33	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:32	Kenneth Maples	CPPg++9.3.0	Error
Oct 24, 2022 15:30	Kenneth Maples	CPPg++9.3.0	Error
Oct 23, 2022 16:59	Kenneth Maples	CPPg++9.3.0	Error
Oct 16, 2022 11:03	Jules Minier	CPPg++9.3.0	Success	75,373+27.26 RP
Oct 16, 2022 10:59	Jules Minier	CPPg++9.3.0	Error
Oct 16, 2022 10:57	Jules Minier	CPPg++9.3.0	Error
Oct 16, 2022 10:51	Jules Minier	CPPg++9.3.0	Success	94,869+3.44 RP
Oct 13, 2022 20:56	Yuriy Lyfenko	CPPg++9.3.0	Error
Oct 13, 2022 20:54	Yuriy Lyfenko	CPPg++9.3.0	Error
Oct 13, 2022 20:27	Yuriy Lyfenko	CPPg++9.3.0	Error
Oct 13, 2022 20:24	Yuriy Lyfenko	CPPg++9.3.0	Success	6,453
Oct 12, 2022 01:42	Kenneth Maples	CPPg++9.3.0	Success	52,258
Oct 12, 2022 01:41	Kenneth Maples	CPPg++9.3.0	Success	44,142
Oct 12, 2022 01:39	Kenneth Maples	CPPg++9.3.0	Success	45,888
Oct 12, 2022 01:28	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 01:24	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 01:20	Kenneth Maples	CPPg++9.3.0	Success	31,943+158.47 RP
Oct 12, 2022 01:06	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:16	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:14	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:13	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:11	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:09	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:08	Kenneth Maples	CPPg++9.3.0	Error
Oct 12, 2022 00:03	Kenneth Maples	CPPg++9.3.0	Error

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