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
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
Jun 15, 2021 10:06	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 10:06	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 10:04	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 10:01	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 10:00	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 09:45	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 09:13	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 09:12	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 06:43	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 06:40	Andrei Grazhdankov	RUST	Error
Jun 15, 2021 06:39	Andrei Grazhdankov	RUST	Error
Jun 14, 2021 22:24	Andrey Tsvetkov	CPP	Success	960,405+10.41 RP
Jun 14, 2021 20:06	Mikhail Shirokov	CPP	Success	95,785
Jun 14, 2021 20:01	Mikhail Shirokov	CPP	Success	120,584
Jun 14, 2021 19:58	Mikhail Shirokov	CPP	Error
Jun 14, 2021 19:53	Mikhail Shirokov	CPP	Error
Jun 14, 2021 19:44	Mikhail Shirokov	CPP	Error
Jun 14, 2021 19:35	Mikhail Shirokov	CPP	Success	89,358+101.47 RP
Jun 14, 2021 19:33	Mikhail Shirokov	CPP	Success	1,003,128
Jun 14, 2021 19:32	Mikhail Shirokov	CPP	Success	958,329+10.43 RP
Jun 13, 2021 20:52	Yuriy Lyfenko	GO	Error
Jun 13, 2021 20:46	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 20:41	Yuriy Lyfenko	CPP	Success	6,767
Jun 13, 2021 20:35	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 20:28	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 19:48	Yurkov Aleksey	CPP	Success	83,887
Jun 13, 2021 19:34	Yurkov Aleksey	CPP	Success	133,430
Jun 13, 2021 18:44	Yurkov Aleksey	CPP	Success	41,996
Jun 13, 2021 18:44	Yurkov Aleksey	CPP	Success	39,334+7.43 RP
Jun 13, 2021 18:43	Yurkov Aleksey	CPP	Success	44,518
Jun 13, 2021 18:42	Yurkov Aleksey	CPP	Success	41,335
Jun 13, 2021 18:42	Yurkov Aleksey	CPP	Success	42,468
Jun 13, 2021 18:16	Yurkov Aleksey	CPP	Success	40,518+3.39 RP
Jun 13, 2021 18:05	Yurkov Aleksey	CPP	Success	132,488
Jun 13, 2021 18:03	Yurkov Aleksey	CPP	Success	41,612
Jun 13, 2021 18:03	Yurkov Aleksey	CPP	Success	41,082+6.26 RP
Jun 13, 2021 17:58	Yurkov Aleksey	CPP	Success	97,223
Jun 13, 2021 17:55	Yurkov Aleksey	CPP	Success	74,451
Jun 13, 2021 17:51	Yurkov Aleksey	CPP	Success	42,166+74.03 RP
Jun 13, 2021 17:02	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 17:01	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 17:00	Yuriy Lyfenko	CPP	Success	6,734+217.08 RP
Jun 13, 2021 16:57	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:56	Yuriy Lyfenko	CPP	Success	7,265+74.48 RP
Jun 13, 2021 16:54	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:53	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:50	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:48	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:45	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:42	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:42	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:41	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:40	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:39	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 16:30	Yurkov Aleksey	CPP	Success	61,303+34.93 RP
Jun 13, 2021 15:59	Sergey Stremin	RUST	Success	19,831
Jun 13, 2021 15:51	Yurkov Aleksey	CPP	Success	85,218
Jun 13, 2021 15:50	Yurkov Aleksey	CPP	Success	114,390
Jun 13, 2021 15:48	Yurkov Aleksey	CPP	Success	93,671
Jun 13, 2021 15:45	Yurkov Aleksey	CPP	Success	92,950
Jun 13, 2021 15:44	Yurkov Aleksey	CPP	Success	91,687
Jun 13, 2021 15:41	Yuriy Lyfenko	CPP	Error
Jun 13, 2021 15:39	Yurkov Aleksey	CPP	Success	84,103
Jun 13, 2021 15:23	Yurkov Aleksey	CPP	Success	107,512
Jun 13, 2021 15:17	Yurkov Aleksey	CPP	Success	82,622
Jun 13, 2021 15:15	Yurkov Aleksey	CPP	Success	91,902
Jun 13, 2021 15:08	Yurkov Aleksey	CPP	Error

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