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
Sep 10, 2022 17:38	eldon-chung	CPPclang++10.0.0	Error
Sep 10, 2022 17:36	eldon-chung	CPPclang++10.0.0	Error
Sep 10, 2022 17:15	eldon-chung	CPPclang++10.0.0	Error
Sep 10, 2022 17:12	eldon-chung	CPPclang++10.0.0	Error
Sep 8, 2022 18:32	eldon-chung	CPPclang++10.0.0	Error
Sep 8, 2022 18:29	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 17:28	eldon-chung	CPPclang++10.0.0	Success	48,830
Sep 7, 2022 16:58	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 16:43	eldon-chung	CPPclang++10.0.0	Success	48,735+205.19 RP
Sep 7, 2022 16:38	Bernard Teo	CPPg++9.3.0	Success	997,521
Sep 7, 2022 16:38	Bernard Teo	CPPg++9.3.0	Success	958,409+10.43 RP
Sep 7, 2022 15:50	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 15:25	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 15:21	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 15:06	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 15:05	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 15:02	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 14:59	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 14:57	eldon-chung	CPPclang++10.0.0	Error
Sep 7, 2022 05:40	Yuriy Lyfenko	CPPg++9.3.0	Error
Sep 7, 2022 05:34	Yuriy Lyfenko	CPPg++9.3.0	Error
Sep 7, 2022 05:32	Yuriy Lyfenko	CPPg++9.3.0	Error
Sep 7, 2022 05:31	Yuriy Lyfenko	CPPg++9.3.0	Success	5,752
Sep 7, 2022 05:25	Yuriy Lyfenko	CPPg++9.3.0	Error
Sep 7, 2022 05:24	Yuriy Lyfenko	CPPg++9.3.0	Error
Sep 7, 2022 05:13	Yuriy Lyfenko	CPPg++9.3.0	Error
Sep 7, 2022 05:11	Yuriy Lyfenko	CPPg++9.3.0	Success	4,909+491.72 RP
Sep 6, 2022 17:02	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 17:01	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 16:48	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 16:37	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 16:22	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 16:20	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 16:18	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 11:14	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 11:05	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 11:04	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 11:03	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 11:02	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 11:01	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 10:55	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 10:54	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 10:52	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 10:50	eldon-chung	CPPclang++10.0.0	Error
Sep 6, 2022 10:49	eldon-chung	CPPg++9.3.0	Error
Sep 6, 2022 10:48	eldon-chung	CPPg++9.3.0	Error
Sep 6, 2022 10:47	eldon-chung	CPPg++9.3.0	Error
Sep 5, 2022 11:27	Eugene Zhydzetski	GOgo1.19	Success	27,542
Sep 5, 2022 11:25	Eugene Zhydzetski	GOgo1.19	Success	22,124
Sep 5, 2022 11:23	Eugene Zhydzetski	GOgo1.19	Success	37,088
Sep 5, 2022 11:19	Eugene Zhydzetski	GOgo1.19	Success	21,958
Sep 5, 2022 11:11	Eugene Zhydzetski	GOgo1.19	Success	22,394
Sep 5, 2022 11:10	Eugene Zhydzetski	GOgo1.19	Success	26,300
Sep 5, 2022 11:04	Eugene Zhydzetski	GOgo1.19	Success	21,620+17.76 RP
Sep 5, 2022 10:57	Eugene Zhydzetski	GOgo1.19	Success	23,704
Sep 5, 2022 10:57	Eugene Zhydzetski	GOgo1.19	Success	24,274
Sep 5, 2022 10:45	Eugene Zhydzetski	GOgo1.19	Success	22,186
Sep 5, 2022 10:44	Eugene Zhydzetski	GOgo1.19	Success	23,269
Sep 5, 2022 10:27	Eugene Zhydzetski	GOgo1.19	Error	+27.86 RP
Sep 5, 2022 10:17	Eugene Zhydzetski	GOgo1.19	Error	+425.80 RP
Sep 5, 2022 10:05	Eugene Zhydzetski	GOgo1.19	Error
Sep 5, 2022 09:53	Eugene Zhydzetski	GOgo1.19	Error
Sep 4, 2022 10:09	Eugene Zhydzetski	GOgo1.19	Error
Aug 14, 2022 22:14	Franek Korta	CPPg++9.3.0	Error
Aug 14, 2022 22:13	Franek Korta	CPPg++9.3.0	Error
Aug 14, 2022 22:11	Franek Korta	CPPg++9.3.0	Error
Aug 14, 2022 22:10	Franek Korta	CPPg++9.3.0	Error
Aug 14, 2022 22:06	Franek Korta	CPPg++9.3.0	Error
Aug 12, 2022 22:21	Egor Sergeev	CPPg++9.3.0	Success	58,597
Aug 12, 2022 21:05	Egor Sergeev	CPPg++9.3.0	Success	59,091
Aug 12, 2022 21:03	Egor Sergeev	CPPg++9.3.0	Success	58,576
Aug 12, 2022 20:59	Egor Sergeev	CPPg++9.3.0	Success	87,159
Aug 12, 2022 20:49	Egor Sergeev	CPPg++9.3.0	Success	143,762
Aug 12, 2022 20:32	Egor Sergeev	CPPg++9.3.0	Success	44,780+1.40 RP
Aug 12, 2022 20:24	Egor Sergeev	CPPg++9.3.0	Success	45,063+103.89 RP
Aug 12, 2022 20:13	Egor Sergeev	CPPg++9.3.0	Error
Aug 9, 2022 18:48	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 18:46	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 18:46	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 18:44	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 16:02	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 15:14	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 15:07	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 15:03	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 15:00	deniskolsanov	RUSTrust-1.62.0	Error
Aug 9, 2022 14:59	deniskolsanov	RUSTrust-1.62.0	Error
Aug 8, 2022 22:14	Franek Korta	CPPg++9.3.0	Error
Aug 8, 2022 22:10	Franek Korta	CPPg++9.3.0	Error
Aug 8, 2022 22:08	Franek Korta	CPPg++9.3.0	Error
Aug 8, 2022 22:03	Franek Korta	CPPg++9.3.0	Error
Aug 8, 2022 22:03	Franek Korta	CPPg++9.3.0	Error
Aug 8, 2022 21:10	Franek Korta	CPPg++9.3.0	Error
Aug 8, 2022 17:48	Franek Korta	CPPg++9.3.0	Success	131,798
Aug 8, 2022 17:44	Franek Korta	CPPg++9.3.0	Error
Aug 7, 2022 13:06	Franek Korta	CPPg++9.3.0	Error
Aug 7, 2022 13:05	Franek Korta	CPPg++9.3.0	Error
Aug 7, 2022 13:00	Franek Korta	CPPg++9.3.0	Error
Aug 7, 2022 12:58	Franek Korta	CPPg++9.3.0	Error
Aug 7, 2022 12:49	Franek Korta	CPPg++9.3.0	Error
Aug 7, 2022 12:32	Franek Korta	CPPg++9.3.0	Error

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