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
Mar 29, 2024 15:58	emily grace	CPPclang++10.0.0	Error
Mar 29, 2024 15:55	emily grace	CPPclang++10.0.0	Error
Mar 29, 2024 15:51	emily grace	CPPclang++10.0.0	Error
Mar 29, 2024 15:39	Drew Garcia	CPPclang++10.0.0	Success	86,578
Mar 29, 2024 15:35	Drew Garcia	CPPclang++10.0.0	Success	92,020
Mar 29, 2024 15:35	Drew Garcia	CPPclang++10.0.0	Success	115,508
Mar 29, 2024 15:34	Drew Garcia	CPPclang++10.0.0	Success	79,897+20.49 RP
Mar 29, 2024 15:33	Drew Garcia	CPPclang++10.0.0	Success	101,823
Mar 29, 2024 15:29	Drew Garcia	CPPclang++10.0.0	Success	95,534+0.56 RP
Mar 29, 2024 15:27	Drew Garcia	CPPclang++10.0.0	Error
Mar 29, 2024 15:19	Drew Garcia	CPPclang++10.0.0	Error
Mar 29, 2024 15:06	Drew Garcia	CPPclang++10.0.0	Error
Mar 29, 2024 15:02	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 23:08	woodsy-sounding-wilful-sapwood	CPPclang++10.0.0	Success	94,739
Mar 28, 2024 23:06	woodsy-sounding-wilful-sapwood	CPPclang++10.0.0	Success	111,137
Mar 28, 2024 23:04	woodsy-sounding-wilful-sapwood	CPPg++9.4.0	Success	106,249
Mar 28, 2024 22:25	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 22:23	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 22:22	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 22:17	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 22:12	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 22:09	woodsy-sounding-wilful-sapwood	CPPg++9.4.0	Success	98,513
Mar 28, 2024 22:07	woodsy-sounding-wilful-sapwood	CPPclang++10.0.0	Success	108,812
Mar 28, 2024 21:59	woodsy-sounding-wilful-sapwood	CPPclang++10.0.0	Success	90,605+110.37 RP
Mar 28, 2024 21:52	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 21:50	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 21:47	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 20:49	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 20:46	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 20:38	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 20:36	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 20:26	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 19:45	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:45	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:44	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:41	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:39	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:34	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:32	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:32	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:28	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:27	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:25	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:23	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:18	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:16	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:12	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 19:05	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 18:59	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 18:30	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 18:26	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 18:14	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 18:06	Drew Garcia	CPPg++9.4.0	Error
Mar 28, 2024 17:46	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 17:41	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 17:37	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 17:03	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 17:01	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 17:00	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:59	Drew Garcia	CPPclang++10.0.0	Success	96,044+4.46 RP
Mar 28, 2024 16:45	emily grace	CPPclang++10.0.0	Success	104,791
Mar 28, 2024 16:43	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:43	Drew Garcia	CPPclang++10.0.0	Success	105,522
Mar 28, 2024 16:38	Drew Garcia	CPPclang++10.0.0	Success	101,829
Mar 28, 2024 16:38	emily grace	CPPclang++10.0.0	Success	106,048
Mar 28, 2024 16:36	emily grace	CPPg++9.4.0	Success	120,716
Mar 28, 2024 16:35	emily grace	CPPg++9.4.0	Success	907,682
Mar 28, 2024 16:34	emily grace	CPPg++9.4.0	Error
Mar 28, 2024 16:32	emily grace	CPPg++9.4.0	Error
Mar 28, 2024 16:31	Drew Garcia	CPPclang++10.0.0	Success	1,016,211
Mar 28, 2024 16:29	emily grace	CPPg++9.4.0	Error
Mar 28, 2024 16:27	emily grace	CPPg++9.4.0	Error
Mar 28, 2024 16:26	emily grace	CPPg++9.4.0	Error
Mar 28, 2024 16:24	Drew Garcia	CPPclang++10.0.0	Success	330,305
Mar 28, 2024 16:23	emily grace	CPPg++9.4.0	Error
Mar 28, 2024 16:22	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:17	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:16	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 16:15	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:14	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:13	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 16:12	emily grace	CPPclang++10.0.0	Error
Mar 28, 2024 16:10	emily grace	CPPclang++10.0.0	Success	106,528
Mar 28, 2024 15:57	emily grace	CPPclang++10.0.0	Success	106,278
Mar 28, 2024 15:57	emily grace	CPPclang++10.0.0	Success	102,476
Mar 28, 2024 15:53	Drew Garcia	CPPclang++10.0.0	Success	100,346+3.24 RP
Mar 28, 2024 15:45	Drew Garcia	CPPclang++10.0.0	Success	111,095
Mar 28, 2024 15:41	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 15:30	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 15:24	Drew Garcia	CPPclang++10.0.0	Error
Mar 28, 2024 15:17	Drew Garcia	CPPg++9.4.0	Error
Mar 28, 2024 04:43	Drew Garcia	CPPclang++10.0.0	Success	125,397
Mar 28, 2024 03:02	Drew Garcia	CPPg++9.4.0	Success	103,713+96.42 RP
Mar 28, 2024 02:59	Drew Garcia	CPPg++9.4.0	Error
Mar 27, 2024 23:44	emily grace	CPPclang++10.0.0	Success	105,183
Mar 27, 2024 23:43	emily grace	CPPclang++10.0.0	Success	186,383
Mar 27, 2024 23:42	emily grace	CPPclang++10.0.0	Error
Mar 27, 2024 23:31	emily grace	CPPclang++10.0.0	Success	105,986
Mar 27, 2024 23:29	emily grace	CPPclang++10.0.0	Error
Mar 27, 2024 23:14	emily grace	CPPclang++10.0.0	Success	106,682

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