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 16, 2023 10:51	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 10:01	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 09:59	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 09:57	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 09:45	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 09:44	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 09:42	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 09:40	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 13:02	Ulyanov Aleksey	CPPclang++10.0.0	Success	22,474
Jun 15, 2023 13:01	Ulyanov Aleksey	CPPclang++10.0.0	Success	23,462
Jun 15, 2023 12:56	Ulyanov Aleksey	CPPclang++10.0.0	Success	22,447
Jun 15, 2023 12:56	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:53	Ulyanov Aleksey	CPPclang++10.0.0	Success	21,613
Jun 15, 2023 12:50	Ulyanov Aleksey	CPPclang++10.0.0	Success	21,605+103.36 RP
Jun 15, 2023 12:48	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:45	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:36	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:31	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:29	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:28	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:28	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 12:01	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 11:47	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 11:42	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 11:33	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 11:31	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 11:31	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 11:27	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 10:17	Ulyanov Aleksey	CPPclang++10.0.0	Success	27,817+0.16 RP
Jun 15, 2023 10:13	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,166
Jun 15, 2023 10:11	Ulyanov Aleksey	CPPclang++10.0.0	Success	49,870
Jun 15, 2023 10:07	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,842
Jun 15, 2023 10:05	Ulyanov Aleksey	CPPclang++10.0.0	Success	27,829+2.42 RP
Jun 15, 2023 10:04	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 10:03	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 15, 2023 09:57	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,610
Jun 14, 2023 22:12	Ulyanov Aleksey	CPPg++9.3.0	Success	32,616
Jun 14, 2023 22:11	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,711
Jun 14, 2023 22:09	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 22:08	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,730
Jun 14, 2023 22:07	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,018+0.62 RP
Jun 14, 2023 22:04	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,067+15.45 RP
Jun 14, 2023 22:04	Ulyanov Aleksey	CPPclang++10.0.0	Success	29,339+2.28 RP
Jun 14, 2023 22:04	Ulyanov Aleksey	CPPclang++10.0.0	Success	29,537+1.01 RP
Jun 14, 2023 22:00	Ulyanov Aleksey	CPPclang++10.0.0	Success	51,475
Jun 14, 2023 21:59	Ulyanov Aleksey	CPPclang++10.0.0	Success	30,404
Jun 14, 2023 21:57	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:53	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:51	Ulyanov Aleksey	CPPclang++10.0.0	Success	32,958
Jun 14, 2023 21:49	Ulyanov Aleksey	CPPclang++10.0.0	Success	53,583
Jun 14, 2023 21:46	Ulyanov Aleksey	CPPclang++10.0.0	Success	32,189
Jun 14, 2023 21:43	Ulyanov Aleksey	CPPclang++10.0.0	Success	30,208
Jun 14, 2023 21:42	Ulyanov Aleksey	CPPclang++10.0.0	Success	116,459
Jun 14, 2023 21:38	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:35	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:33	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:32	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:29	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 14, 2023 21:20	Ulyanov Aleksey	CPPclang++10.0.0	Success	30,623
Jun 14, 2023 21:18	Ulyanov Aleksey	CPPclang++10.0.0	Success	29,625+126.09 RP
Jun 14, 2023 21:17	Ulyanov Aleksey	CPPclang++10.0.0	Success	47,289+1.24 RP
Jun 14, 2023 21:13	Ulyanov Aleksey	CPPclang++10.0.0	Success	47,568+2.15 RP
Jun 14, 2023 21:12	Ulyanov Aleksey	CPPclang++10.0.0	Success	48,059+7.34 RP
Jun 14, 2023 21:10	Ulyanov Aleksey	CPPg++9.3.0	Success	50,468
Jun 14, 2023 21:08	Ulyanov Aleksey	CPPg++9.3.0	Error
Jun 14, 2023 21:07	Ulyanov Aleksey	CPPg++9.3.0	Error
Jun 14, 2023 21:04	Ulyanov Aleksey	CPPg++9.3.0	Error
Jun 14, 2023 21:03	Ulyanov Aleksey	CPPg++9.3.0	Success	50,225
Jun 14, 2023 21:03	Ulyanov Aleksey	CPPg++9.3.0	Success	49,817+3.12 RP
Jun 14, 2023 20:58	Ulyanov Aleksey	CPPg++9.3.0	Success	50,604+25.26 RP
Jun 14, 2023 20:49	Ulyanov Aleksey	CPPg++9.3.0	Success	58,020+0.31 RP
Jun 14, 2023 20:49	Ulyanov Aleksey	CPPg++9.3.0	Success	58,126+172.04 RP
Jun 14, 2023 20:46	Ulyanov Aleksey	CPPg++9.3.0	Error
Jun 14, 2023 20:44	Ulyanov Aleksey	CPPg++9.3.0	Error
Jun 14, 2023 20:40	Ulyanov Aleksey	CPPg++9.3.0	Error
Jun 4, 2023 21:43	Franek Korta	CPPg++9.3.0	Error
Jun 4, 2023 21:40	Franek Korta	CPPg++9.3.0	Success	15,229
Jun 4, 2023 21:21	Franek Korta	CPPg++9.3.0	Error
Jun 4, 2023 21:15	Franek Korta	CPPg++9.3.0	Success	14,719
Jun 4, 2023 21:13	Franek Korta	CPPg++9.3.0	Success	15,508
Jun 4, 2023 21:13	Franek Korta	CPPg++9.3.0	Success	14,676
Jun 4, 2023 21:11	Franek Korta	CPPg++9.3.0	Success	15,773
Jun 4, 2023 20:56	Franek Korta	CPPg++9.3.0	Error
Jun 4, 2023 20:55	Franek Korta	CPPg++9.3.0	Success	16,072
Jun 2, 2023 21:53	Franek Korta	CPPg++9.3.0	Error
Jun 2, 2023 21:28	Franek Korta	CPPg++9.3.0	Success	15,909
Jun 2, 2023 21:25	Franek Korta	CPPg++9.3.0	Error
May 22, 2023 09:22	Franek Korta	CPPg++9.3.0	Success	15,179
May 22, 2023 09:21	Franek Korta	CPPg++9.3.0	Success	16,389
May 22, 2023 09:19	Franek Korta	CPPg++9.3.0	Success	17,612
May 22, 2023 09:19	Franek Korta	CPPg++9.3.0	Success	17,565
May 22, 2023 08:57	Franek Korta	CPPg++9.3.0	Success	18,141
May 22, 2023 08:55	Franek Korta	CPPg++9.3.0	Error
May 22, 2023 08:54	Franek Korta	CPPg++9.3.0	Error
May 22, 2023 08:53	Franek Korta	CPPg++9.3.0	Success	18,283
May 22, 2023 08:51	Franek Korta	CPPg++9.3.0	Success	18,500
May 16, 2023 18:15	Martin Stensgård	CPPclang++10.0.0	Success	16,189+247.73 RP
May 16, 2023 17:25	Martin Stensgård	CPPclang++10.0.0	Error
May 16, 2023 16:24	Martin Stensgård	CPPclang++10.0.0	Success	27,029+6.69 RP
May 16, 2023 16:23	Martin Stensgård	CPPclang++10.0.0	Error

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