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
Jul 13, 2023 11:12	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 11:09	gchebanov	CPPg++9.3.0	Success	43,758
Jul 13, 2023 11:07	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 11:01	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 11:01	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:59	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:56	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:51	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:50	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:46	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:27	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:26	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:25	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:24	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:17	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:05	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:05	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 10:03	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:51	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:49	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:47	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:36	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:25	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:24	gchebanov	CPPg++9.3.0	Error
Jul 13, 2023 09:17	gchebanov	CPPg++9.3.0	Success	1,040,257
Jul 13, 2023 09:13	gchebanov	CPPg++9.3.0	Success	1,013,004
Jul 13, 2023 09:09	gchebanov	CPPg++9.3.0	Success	1,085,760
Jul 13, 2023 09:05	gchebanov	CPPg++9.3.0	Success	1,785,534
Jul 13, 2023 08:57	gchebanov	CPPg++9.3.0	Success	1,816,049
Jul 13, 2023 08:53	gchebanov	CPPg++9.3.0	Success	1,343,190
Jul 13, 2023 08:49	gchebanov	CPPg++9.3.0	Success	983,338
Jul 13, 2023 05:12	Paul Masurel	RUSTrust-1.69.0	Success	11,476+109.98 RP
Jul 13, 2023 05:11	Paul Masurel	RUSTrust-1.69.0	Success	26,328
Jul 13, 2023 05:05	Paul Masurel	RUSTrust-1.69.0	Success	12,249+218.28 RP
Jul 13, 2023 04:58	Paul Masurel	RUSTrust-1.69.0	Error
Jul 13, 2023 03:22	Paul Masurel	RUSTrust-1.69.0	Success	23,487
Jul 13, 2023 03:20	Paul Masurel	RUSTrust-1.69.0	Success	22,910
Jul 13, 2023 03:18	Paul Masurel	RUSTrust-1.69.0	Success	22,999
Jul 13, 2023 03:17	Paul Masurel	RUSTrust-1.69.0	Success	22,268
Jul 13, 2023 03:15	Paul Masurel	RUSTrust-1.69.0	Success	22,330
Jul 13, 2023 03:13	Paul Masurel	RUSTrust-1.69.0	Success	23,054
Jul 12, 2023 15:24	Paul Masurel	RUSTrust-1.69.0	Success	16,050+18.06 RP
Jul 12, 2023 15:16	Paul Masurel	RUSTrust-1.69.0	Success	23,849
Jul 12, 2023 14:47	Paul Masurel	RUSTrust-1.69.0	Success	17,657
Jul 12, 2023 14:43	Paul Masurel	RUSTrust-1.69.0	Error
Jul 12, 2023 14:36	Paul Masurel	RUSTrust-1.69.0	Success	16,529+2.08 RP
Jul 12, 2023 14:33	Paul Masurel	RUSTrust-1.69.0	Success	28,510
Jul 12, 2023 14:25	Paul Masurel	RUSTrust-1.69.0	Success	16,696
Jul 12, 2023 14:19	Paul Masurel	RUSTrust-1.69.0	Success	20,485
Jul 12, 2023 14:15	Paul Masurel	RUSTrust-1.69.0	Success	16,689
Jul 12, 2023 12:39	Paul Masurel	RUSTrust-1.69.0	Success	30,576
Jul 12, 2023 12:35	Paul Masurel	RUSTrust-1.69.0	Error
Jul 12, 2023 12:31	Paul Masurel	RUSTrust-1.69.0	Success	16,586+9.23 RP
Jul 12, 2023 12:28	Paul Masurel	RUSTrust-1.69.0	Success	58,811
Jul 12, 2023 12:26	Paul Masurel	RUSTrust-1.69.0	Error
Jul 12, 2023 12:20	Paul Masurel	RUSTrust-1.69.0	Success	36,922
Jul 12, 2023 12:18	Paul Masurel	RUSTrust-1.69.0	Success	36,812
Jul 12, 2023 12:16	Paul Masurel	RUSTrust-1.69.0	Success	36,875
Jul 12, 2023 11:59	Paul Masurel	RUSTrust-1.69.0	Success	36,871
Jul 12, 2023 10:56	Paul Masurel	RUSTrust-1.69.0	Success	54,095
Jul 12, 2023 10:53	Paul Masurel	RUSTrust-1.69.0	Success	30,693
Jul 12, 2023 08:51	Paul Masurel	RUSTrust-1.69.0	Success	16,844+332.83 RP
Jul 12, 2023 08:31	Paul Masurel	RUSTrust-1.69.0	Success	38,336+199.60 RP
Jul 12, 2023 08:09	Paul Masurel	RUSTrust-1.69.0	Success	163,271+61.25 RP
Jul 12, 2023 07:02	Paul Masurel	RUSTrust-1.69.0	Error
Jul 12, 2023 06:47	Paul Masurel	RUSTrust-1.69.0	Error
Jul 8, 2023 23:09	Andrew Epstein	CPPg++9.3.0	Success	955,980+10.46 RP
Jul 2, 2023 21:05	Matt Langford	CPPclang++10.0.0	Error
Jul 2, 2023 20:03	Matt Langford	CPPclang++10.0.0	Success	97,097+102.99 RP
Jul 2, 2023 20:02	Matt Langford	CPPclang++10.0.0	Error
Jun 17, 2023 23:38	Ulyanov Aleksey	CPPclang++10.0.0	Success	16,086+0.73 RP
Jun 17, 2023 23:38	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 17, 2023 23:36	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 17, 2023 23:35	Ulyanov Aleksey	CPPclang++10.0.0	Success	28,916
Jun 17, 2023 23:34	Ulyanov Aleksey	CPPclang++10.0.0	Success	16,105+10.24 RP
Jun 17, 2023 23:34	Ulyanov Aleksey	CPPclang++10.0.0	Success	16,498
Jun 17, 2023 23:33	Ulyanov Aleksey	CPPclang++10.0.0	Success	17,701
Jun 17, 2023 23:33	Ulyanov Aleksey	CPPclang++10.0.0	Success	17,690
Jun 17, 2023 23:32	Ulyanov Aleksey	CPPclang++10.0.0	Success	31,746
Jun 17, 2023 23:30	Ulyanov Aleksey	CPPclang++10.0.0	Success	31,264
Jun 17, 2023 23:30	Ulyanov Aleksey	CPPg++9.3.0	Success	30,430
Jun 17, 2023 23:30	Ulyanov Aleksey	CPPg++9.3.0	Success	30,713
Jun 17, 2023 23:29	Ulyanov Aleksey	CPPclang++10.0.0	Success	16,375+0.71 RP
Jun 17, 2023 23:28	Ulyanov Aleksey	CPPclang++10.0.0	Success	16,394+147.12 RP
Jun 17, 2023 23:26	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 12:11	Ulyanov Aleksey	CPPclang++10.0.0	Success	113,726
Jun 16, 2023 12:07	Ulyanov Aleksey	CPPclang++10.0.0	Success	147,891
Jun 16, 2023 12:06	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 12:04	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 12:03	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 11:32	Ulyanov Aleksey	CPPclang++10.0.0	Success	157,806
Jun 16, 2023 11:31	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 11:27	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 11:25	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 11:21	Ulyanov Aleksey	CPPclang++10.0.0	Success	109,142
Jun 16, 2023 11:00	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 10:59	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 10:57	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 10:55	Ulyanov Aleksey	CPPclang++10.0.0	Error
Jun 16, 2023 10:52	Ulyanov Aleksey	CPPclang++10.0.0	Error

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