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
Nov 25, 2023 20:17	mmalczak	CPPg++9.3.0	Success	211,049+14.91 RP
Nov 25, 2023 20:09	mmalczak	CPPg++9.3.0	Success	307,925+12.35 RP
Nov 25, 2023 20:09	mmalczak	CPPg++9.3.0	Error
Nov 25, 2023 20:08	mmalczak	CPPg++9.3.0	Success	496,813+0.03 RP
Nov 25, 2023 20:07	mmalczak	CPPg++9.3.0	Success	497,531+0.84 RP
Nov 25, 2023 20:06	mmalczak	CPPg++9.3.0	Success	519,164+0.21 RP
Nov 25, 2023 20:04	mmalczak	CPPg++9.3.0	Success	525,015+0.42 RP
Nov 25, 2023 20:02	mmalczak	CPPg++9.3.0	Error
Nov 25, 2023 20:00	mmalczak	CPPg++9.3.0	Success	536,769+7.35 RP
Nov 25, 2023 19:58	mmalczak	CPPg++9.3.0	Success	886,706+0.76 RP
Nov 25, 2023 19:56	mmalczak	CPPg++9.3.0	Success	999,065
Nov 25, 2023 19:55	mmalczak	CPPg++9.3.0	Success	1,000,153
Nov 25, 2023 19:47	mmalczak	CPPg++9.3.0	Success	990,087
Nov 25, 2023 14:41	mmalczak	CPPg++9.3.0	Success	987,905
Nov 25, 2023 14:39	mmalczak	CPPg++9.3.0	Success	950,970+0.08 RP
Nov 25, 2023 14:31	mmalczak	CPPg++9.3.0	Error
Nov 25, 2023 14:24	mmalczak	CPPg++9.3.0	Success	958,496+10.43 RP
Oct 9, 2023 02:53	sliceteam	CPPg++9.3.0	Success	955,349+10.47 RP
Sep 30, 2023 19:26	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 19:13	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 19:07	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 19:06	apuxbt	CPPg++9.3.0	Success	18,090+68.72 RP
Sep 30, 2023 19:05	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 19:03	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 19:00	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:54	apuxbt	CPPg++9.3.0	Success	20,658+262.36 RP
Sep 30, 2023 18:53	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:47	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:34	apuxbt	CPPg++9.3.0	Success	85,702
Sep 30, 2023 18:33	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:24	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:22	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:21	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:20	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:17	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:12	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:10	apuxbt	CPPg++9.3.0	Error
Sep 30, 2023 18:08	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 17:19	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:55	apuxbt	CPPg++9.3.0	Success	46,662
Sep 28, 2023 14:53	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:52	apuxbt	CPPg++9.3.0	Success	46,614
Sep 28, 2023 14:52	apuxbt	CPPg++9.3.0	Success	45,104+13.20 RP
Sep 28, 2023 14:51	apuxbt	CPPg++9.3.0	Success	47,960+4.67 RP
Sep 28, 2023 14:51	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:47	apuxbt	CPPg++9.3.0	Success	49,058+56.85 RP
Sep 28, 2023 14:46	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:44	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:41	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:41	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:40	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:38	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:34	apuxbt	CPPg++9.3.0	Success	75,417
Sep 28, 2023 14:34	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:32	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:32	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:31	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:28	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:27	apuxbt	CPPg++9.3.0	Success	69,509
Sep 28, 2023 14:26	apuxbt	CPPg++9.3.0	Success	68,031+10.23 RP
Sep 28, 2023 14:25	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:23	apuxbt	CPPg++9.3.0	Success	73,501
Sep 28, 2023 14:21	apuxbt	CPPg++9.3.0	Success	73,121+0.32 RP
Sep 28, 2023 14:16	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:11	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:10	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:08	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 14:06	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 13:59	apuxbt	CPPg++9.3.0	Success	73,295+42.66 RP
Sep 28, 2023 13:48	apuxbt	CPPg++9.3.0	Success	122,915
Sep 28, 2023 13:46	apuxbt	CPPg++9.3.0	Success	124,577
Sep 28, 2023 13:45	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 13:42	apuxbt	CPPg++9.3.0	Success	125,445
Sep 28, 2023 13:27	apuxbt	CPPg++9.3.0	Success	297,714
Sep 28, 2023 13:18	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 13:15	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 13:03	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 13:00	apuxbt	CPPg++9.3.0	Success	147,048
Sep 28, 2023 12:59	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 00:16	apuxbt	CPPg++9.3.0	Success	1,027,626
Sep 28, 2023 00:14	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 00:10	apuxbt	CPPg++9.3.0	Error
Sep 28, 2023 00:08	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 23:46	apuxbt	CPPg++9.3.0	Success	113,388
Sep 27, 2023 23:41	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 23:37	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 23:34	apuxbt	CPPg++9.3.0	Error
Sep 27, 2023 23:33	apuxbt	CPPg++9.3.0	Error
Sep 4, 2023 00:07	Mikhail Shirokov	CPPg++9.3.0	Error
Sep 4, 2023 00:06	Mikhail Shirokov	CPPg++9.3.0	Error
Sep 4, 2023 00:00	Mikhail Shirokov	CPPg++9.3.0	Success	1,345,757
Sep 3, 2023 23:50	Mikhail Shirokov	CPPg++9.3.0	Success	1,355,030
Sep 3, 2023 23:46	Mikhail Shirokov	CPPg++9.3.0	Success	1,379,836
Sep 3, 2023 23:42	Mikhail Shirokov	CPPg++9.3.0	Success	1,395,221
Sep 3, 2023 23:40	Mikhail Shirokov	CPPg++9.3.0	Success	1,400,288
Sep 3, 2023 23:33	Mikhail Shirokov	CPPg++9.3.0	Error
Aug 30, 2023 23:20	Mikhail Shirokov	CPPg++9.3.0	Error
Aug 28, 2023 23:46	Mikhail Shirokov	CPPg++9.3.0	Success	21,997
Aug 28, 2023 23:40	Mikhail Shirokov	CPPg++9.3.0	Success	21,621
Aug 28, 2023 23:39	Mikhail Shirokov	CPPg++9.3.0	Success	21,867

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