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
May 16, 2023 16:05	Martin Stensgård	CPPclang++10.0.0	Success	28,450
May 15, 2023 15:07	Martin Stensgård	CPPclang++10.0.0	Success	27,527+169.98 RP
May 15, 2023 14:19	Martin Stensgård	CPPclang++10.0.0	Success	371,619
May 15, 2023 14:02	Martin Stensgård	CPPclang++10.0.0	Error
May 15, 2023 13:58	Martin Stensgård	CPPclang++10.0.0	Success	52,212
May 15, 2023 13:50	Martin Stensgård	CPPg++9.3.0	Error
May 15, 2023 13:35	Martin Stensgård	CPPg++9.3.0	Success	51,732+46.82 RP
May 15, 2023 13:29	Martin Stensgård	CPPg++9.3.0	Error
May 15, 2023 13:28	Martin Stensgård	CPPg++9.3.0	Error
May 15, 2023 13:25	Martin Stensgård	CPPg++9.3.0	Error
May 15, 2023 13:19	Martin Stensgård	CPPg++9.3.0	Error
May 15, 2023 13:18	Martin Stensgård	CPPclang++10.0.0	Error
May 15, 2023 12:23	Martin Stensgård	CPPclang++10.0.0	Success	361,455
May 15, 2023 08:36	Martin Stensgård	CPPclang++10.0.0	Success	68,265+9.39 RP
May 15, 2023 08:11	Martin Stensgård	CPPg++9.3.0	Success	72,942+2.15 RP
May 15, 2023 07:40	Martin Stensgård	CPPg++9.3.0	Error
May 15, 2023 07:37	Martin Stensgård	CPPclang++10.0.0	Error
May 12, 2023 22:43	Martin Stensgård	CPPclang++10.0.0	Success	74,103+3.07 RP
May 12, 2023 22:20	Martin Stensgård	CPPg++9.3.0	Success	75,826+51.16 RP
May 10, 2023 23:12	Martin Stensgård	CPPg++9.3.0	Error
May 10, 2023 23:10	Martin Stensgård	CPPg++9.3.0	Error
May 10, 2023 23:09	Martin Stensgård	CPPg++9.3.0	Error
May 10, 2023 22:45	Martin Stensgård	CPPg++9.3.0	Success	123,888+70.29 RP
May 10, 2023 22:12	Martin Stensgård	CPPg++9.3.0	Error
May 10, 2023 21:58	Martin Stensgård	CPPg++9.3.0	Error
May 10, 2023 21:49	Martin Stensgård	CPPg++9.3.0	Success	958,491+10.43 RP
May 9, 2023 21:35	Franek Korta	CPPg++9.3.0	Success	16,858
May 9, 2023 21:33	Franek Korta	CPPg++9.3.0	Error
May 9, 2023 21:32	Franek Korta	CPPg++9.3.0	Success	16,352
May 9, 2023 21:31	Franek Korta	CPPg++9.3.0	Success	16,577
May 9, 2023 21:29	Franek Korta	CPPg++9.3.0	Success	14,791
May 7, 2023 04:36	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 04:35	Yuriy Lyfenko	CPPclang++10.0.0	Success	5,582
May 7, 2023 04:35	Yuriy Lyfenko	CPPclang++10.0.0	Error
May 7, 2023 04:34	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 04:33	Yuriy Lyfenko	CPPg++9.3.0	Success	5,465
May 7, 2023 04:32	Yuriy Lyfenko	CPPg++9.3.0	Success	5,250
May 7, 2023 04:30	Yuriy Lyfenko	CPPg++9.3.0	Success	7,696
May 7, 2023 04:27	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 04:25	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 04:23	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 04:20	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 03:56	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 03:55	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 03:51	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 03:33	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 03:28	Yuriy Lyfenko	CPPg++9.3.0	Success	5,397
May 7, 2023 03:27	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 03:26	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:55	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:50	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:46	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:43	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:41	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:30	Yuriy Lyfenko	CPPg++9.3.0	Success	5,369
May 7, 2023 02:27	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:25	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:19	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:16	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:14	Yuriy Lyfenko	CPPg++9.3.0	Success	5,749
May 7, 2023 02:13	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:12	Yuriy Lyfenko	CPPg++9.3.0	Error
May 7, 2023 02:07	Yuriy Lyfenko	CPPclang++10.0.0	Success	5,371
May 7, 2023 02:06	Yuriy Lyfenko	CPPg++9.3.0	Error
May 6, 2023 23:07	Franek Korta	CPPg++9.3.0	Success	16,868
May 6, 2023 23:07	Franek Korta	CPPg++9.3.0	Success	15,952
May 6, 2023 22:39	Franek Korta	CPPg++9.3.0	Error
May 6, 2023 22:33	Franek Korta	CPPg++9.3.0	Success	15,366
May 6, 2023 22:31	Franek Korta	CPPg++9.3.0	Success	12,182
May 6, 2023 22:25	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 20:50	Franek Korta	CPPg++9.3.0	Success	12,632
Apr 25, 2023 20:48	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 20:47	Franek Korta	CPPg++9.3.0	Success	13,517
Apr 25, 2023 20:46	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 20:10	Franek Korta	CPPg++9.3.0	Success	11,830
Apr 25, 2023 20:09	Franek Korta	CPPg++9.3.0	Success	12,353
Apr 25, 2023 20:08	Franek Korta	CPPg++9.3.0	Success	12,392
Apr 25, 2023 20:07	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 20:03	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 20:00	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:59	Franek Korta	CPPg++9.3.0	Success	12,321
Apr 25, 2023 19:52	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:38	Franek Korta	CPPg++9.3.0	Success	12,477
Apr 25, 2023 19:36	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:35	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:31	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:31	Franek Korta	CPPg++9.3.0	Success	11,814
Apr 25, 2023 19:24	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:02	Franek Korta	CPPg++9.3.0	Error
Apr 25, 2023 19:01	Franek Korta	CPPg++9.3.0	Success	11,357+47.04 RP
Apr 23, 2023 21:08	Franek Korta	CPPg++9.3.0	Error
Apr 23, 2023 21:05	Franek Korta	CPPg++9.3.0	Success	11,998+154.17 RP
Apr 23, 2023 21:02	Franek Korta	CPPg++9.3.0	Success	15,593
Apr 23, 2023 21:02	Franek Korta	CPPg++9.3.0	Success	20,543
Apr 23, 2023 21:01	Franek Korta	CPPg++9.3.0	Error
Apr 23, 2023 20:59	Franek Korta	CPPg++9.3.0	Error
Apr 23, 2023 20:58	Franek Korta	CPPg++9.3.0	Error
Apr 23, 2023 20:58	Franek Korta	CPPg++9.3.0	Error
Apr 23, 2023 20:57	Franek Korta	CPPg++9.3.0	Error
Apr 23, 2023 20:53	Franek Korta	CPPg++9.3.0	Error

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