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	1:20.1.2-0ubuntu1~24.04.2	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.
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	3.0.13-0ubuntu3.9	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 21, 2022 08:26	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:25	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:24	Liam Powell	CPPg++9.3.0	Error
Jul 21, 2022 08:23	Liam Powell	CPPg++9.3.0	Error
May 25, 2022 13:37	At-sushi	CPPg++9.3.0	Error
May 25, 2022 13:33	At-sushi	CPPg++9.3.0	Error
May 25, 2022 13:00	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:51	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:49	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:18	At-sushi	CPPg++9.3.0	Error
May 25, 2022 12:13	At-sushi	CPPg++9.3.0	Error
Jan 21, 2022 05:00	Karam Jameel Moore	CPPg++9.3.0	Success	955,936+10.46 RP
Nov 11, 2021 08:18	Ilya Aniskovets	CPPclang++10.0.0	Success	21,786
Nov 11, 2021 06:22	Sergey Stremin	RUSTrust-1.56.1	Success	312,289
Nov 11, 2021 06:22	Sergey Stremin	RUSTrust-1.56.1	Error
Nov 11, 2021 06:10	Sergey Stremin	RUSTrust-1.56.1	Success	12,780
Nov 1, 2021 13:45	picul	CPPclang++10.0.0	Error
Nov 1, 2021 13:44	picul	CPPclang++10.0.0	Error
Nov 1, 2021 13:41	picul	CPPclang++10.0.0	Error
Nov 1, 2021 13:39	picul	CPPclang++10.0.0	Success	46,727+49.83 RP
Nov 1, 2021 13:38	picul	CPPclang++10.0.0	Error
Nov 1, 2021 13:37	picul	CPPclang++10.0.0	Success	60,908+3.14 RP
Nov 1, 2021 13:37	picul	CPPg++9.3.0	Success	62,096+34.89 RP
Nov 1, 2021 10:10	Jules Minier	CPPg++9.3.0	Success	99,139
Nov 1, 2021 10:09	Jules Minier	CPPg++9.3.0	Error
Nov 1, 2021 10:03	Jules Minier	CPPg++9.3.0	Success	98,573
Nov 1, 2021 10:02	Jules Minier	CPPg++9.3.0	Success	98,445
Nov 1, 2021 09:59	Jules Minier	CPPg++9.3.0	Success	98,073+0.47 RP
Nov 1, 2021 09:57	Jules Minier	CPPg++9.3.0	Success	98,526+3.16 RP
Nov 1, 2021 09:45	Jules Minier	CPPg++9.3.0	Success	101,688+1.56 RP
Nov 1, 2021 01:28	Jules Minier	CPPg++9.3.0	Success	289,579
Nov 1, 2021 01:27	Jules Minier	CPPg++9.3.0	Success	120,174
Nov 1, 2021 00:39	Jules Minier	CPPg++9.3.0	Success	289,445
Oct 31, 2021 11:14	Ilya Aniskovets	CPPclang++10.0.0	Success	21,306+0.57 RP
Oct 31, 2021 11:11	Ilya Aniskovets	CPPclang++10.0.0	Success	21,332+14.21 RP
Oct 31, 2021 11:09	Ilya Aniskovets	CPPg++9.3.0	Success	25,074
Oct 31, 2021 11:07	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 11:06	Ilya Aniskovets	CPPclang++10.0.0	Success	21,999+7.48 RP
Oct 31, 2021 11:05	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 11:00	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 10:34	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 10:34	Ilya Aniskovets	CPPg++9.3.0	Success	25,434
Oct 31, 2021 10:33	Ilya Aniskovets	CPPclang++10.0.0	Success	22,367+99.85 RP
Oct 31, 2021 10:26	Ilya Aniskovets	CPPg++9.3.0	Success	31,532
Oct 31, 2021 10:26	Ilya Aniskovets	CPPclang++10.0.0	Success	29,042
Oct 31, 2021 10:25	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 10:24	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 10:24	Ilya Aniskovets	CPPclang++10.0.0	Error
Oct 31, 2021 10:20	Ilya Aniskovets	CPPclang++10.0.0	Success	28,799+46.37 RP
Oct 31, 2021 10:19	Ilya Aniskovets	CPPg++9.3.0	Success	33,238+197.92 RP
Oct 31, 2021 10:18	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:15	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:12	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:07	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:06	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:03	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:03	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:02	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:00	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 10:00	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:59	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:58	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:57	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:56	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:54	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:52	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 31, 2021 09:52	Ilya Aniskovets	CPPg++9.3.0	Error
Oct 30, 2021 22:46	Jules Minier	CPPg++9.3.0	Success	103,329+1.72 RP
Oct 30, 2021 22:41	Jules Minier	CPPg++9.3.0	Success	105,879
Oct 30, 2021 10:11	Jules Minier	CPPg++9.3.0	Success	111,063
Oct 30, 2021 09:56	Jules Minier	CPPg++9.3.0	Error
Oct 30, 2021 09:40	Jules Minier	CPPg++9.3.0	Success	105,199+62.53 RP
Oct 30, 2021 09:34	Jules Minier	CPPg++9.3.0	Success	307,406+12.81 RP
Oct 30, 2021 09:20	Jules Minier	CPPg++9.3.0	Error
Oct 13, 2021 20:02	Sergey Stremin	RUSTrust-1.54.0	Error
Oct 13, 2021 19:58	Sergey Stremin	RUSTrust-1.54.0	Success	12,635+5.00 RP
Oct 13, 2021 19:55	Sergey Stremin	RUSTrust-1.54.0	Success	13,126
Oct 13, 2021 19:54	Sergey Stremin	RUSTrust-1.54.0	Success	12,675+6.32 RP
Oct 13, 2021 19:54	Sergey Stremin	RUSTrust-1.54.0	Success	17,709
Oct 13, 2021 17:53	Sergey Stremin	RUSTrust-1.54.0	Success	12,726+197.68 RP
Oct 13, 2021 10:16	Mikhail Shirokov	CPPg++9.3.0	Success	22,184
Oct 13, 2021 10:16	Mikhail Shirokov	CPPg++9.3.0	Success	21,699
Oct 13, 2021 10:15	Mikhail Shirokov	CPPg++9.3.0	Success	21,727
Oct 13, 2021 10:14	Mikhail Shirokov	CPPg++9.3.0	Success	21,556
Sep 3, 2021 19:12	picul	CPPg++9.3.0	Error
Sep 3, 2021 18:43	picul	CPPg++9.3.0	Error
Sep 3, 2021 18:43	picul	CPPg++9.3.0	Error
Sep 3, 2021 18:42	picul	CPPg++9.3.0	Error
Sep 3, 2021 18:41	picul	CPPg++9.3.0	Success	79,271+126.15 RP
Sep 3, 2021 18:40	picul	CPPg++9.3.0	Error
Sep 3, 2021 16:28	Ilya Aniskovets	CPPg++9.3.0	Success	97,140+7.65 RP
Sep 3, 2021 16:27	Ilya Aniskovets	CPPg++9.3.0	Success	106,663
Sep 3, 2021 16:27	Ilya Aniskovets	CPPclang++10.0.0	Success	104,940+5.15 RP
Sep 3, 2021 16:26	Ilya Aniskovets	CPPg++9.3.0	Success	110,938+79.73 RP
Sep 3, 2021 16:21	Ilya Aniskovets	CPPg++9.3.0	Error
Sep 3, 2021 16:20	Ilya Aniskovets	CPPg++9.3.0	Error
Sep 3, 2021 16:17	Ilya Aniskovets	CPPg++9.3.0	Error
Sep 3, 2021 16:15	Ilya Aniskovets	CPPg++9.3.0	Error
Sep 3, 2021 16:12	Ilya Aniskovets	CPPg++9.3.0	Error
Sep 3, 2021 15:56	Ilya Aniskovets	CPPg++9.3.0	Success	960,500+10.41 RP

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