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
Mar 22, 2026 20:20	Dominique Garmier	GOgo1.26.1	Success	30,857
Mar 22, 2026 20:00	Dominique Garmier	GOgo1.26.1	Success	18,016+59.82 RP
Mar 22, 2026 19:50	Dominique Garmier	GOgo1.26.1	Success	20,710
Mar 22, 2026 19:24	Dominique Garmier	GOgo1.26.1	Success	20,192+26.27 RP
Mar 22, 2026 19:23	izotoff	GOgo1.25.4	Success	118,710
Mar 22, 2026 19:19	Dominique Garmier	GOgo1.26.1	Success	30,569
Mar 22, 2026 18:52	Dominique Garmier	RUSTrust-1.94.0	Success	17,345
Mar 22, 2026 18:49	izotoff	GOgo1.25.4	Success	112,232
Mar 22, 2026 18:39	Dominique Garmier	CSHARP9.0.14	Success	393,621
Mar 22, 2026 16:50	Dominique Garmier	RUSTrust-1.94.0	Success	16,455
Mar 22, 2026 14:56	Dominique Garmier	CPPclang++18.1.3	Success	22,230
Mar 22, 2026 14:53	Dominique Garmier	CPPclang++18.1.3	Success	29,428
Mar 22, 2026 13:45	Dominique Garmier	CPPclang++18.1.3	Success	13,180
Mar 22, 2026 13:44	Dominique Garmier	CPPclang++18.1.3	Success	41,498
Mar 22, 2026 12:51	Dominique Garmier	CPPclang++18.1.3	Success	12,608
Mar 22, 2026 12:44	Dominique Garmier	CPPclang++18.1.3	Success	13,182
Mar 22, 2026 12:41	Dominique Garmier	CPPclang++18.1.3	Success	13,543
Mar 22, 2026 12:18	Dominique Garmier	CPPclang++18.1.3	Success	17,855
Mar 22, 2026 12:17	Dominique Garmier	CPPclang++18.1.3	Success	10,811
Mar 22, 2026 12:13	Dominique Garmier	CPPclang++18.1.3	Success	10,750
Mar 22, 2026 12:13	Dominique Garmier	CPPg++13.3.0	Success	54,111
Mar 22, 2026 11:45	Dominique Garmier	RUSTrust-1.94.0	Success	12,412
Mar 22, 2026 11:33	Dominique Garmier	CPPclang++18.1.3	Success	17,957
Mar 22, 2026 11:07	Dominique Garmier	CPPclang++18.1.3	Success	16,797
Mar 22, 2026 10:23	Dominique Garmier	ZIG0.13.0	Success	64,953
Mar 22, 2026 10:18	Dominique Garmier	ZIG0.13.0	Success	66,108
Mar 22, 2026 10:11	Dominique Garmier	ZIG0.13.0	Success	66,457
Mar 22, 2026 09:48	Dominique Garmier	ZIG0.13.0	Success	68,771
Mar 22, 2026 09:17	Dominique Garmier	ZIG0.13.0	Success	68,209
Mar 22, 2026 09:05	Dominique Garmier	CSHARP9.0.14	Success	78,858
Mar 22, 2026 08:41	Dominique Garmier	CSHARP9.0.14	Success	118,188
Mar 22, 2026 08:24	Dominique Garmier	CSHARP9.0.14	Error
Mar 22, 2026 08:15	Dominique Garmier	CSHARP9.0.14	Error
Mar 21, 2026 23:31	Dominique Garmier	CPPclang++18.1.3	Success	68,758
Mar 21, 2026 23:24	Dominique Garmier	CPPclang++18.1.3	Success	18,559
Mar 21, 2026 23:22	Dominique Garmier	CPPg++13.3.0	Success	13,575
Mar 21, 2026 23:22	Dominique Garmier	CPPclang++18.1.3	Success	13,935
Mar 21, 2026 23:14	Dominique Garmier	CPPclang++18.1.3	Success	10,541
Mar 21, 2026 23:14	Dominique Garmier	CPPclang++18.1.3	Success	35,024
Mar 21, 2026 22:27	Dominique Garmier	CPPg++13.3.0	Success	10,525+7.79 RP
Mar 21, 2026 22:27	Dominique Garmier	CPPclang++18.1.3	Success	10,612+138.54 RP
Mar 21, 2026 22:25	Dominique Garmier	CPPg++13.3.0	Success	13,160
Mar 21, 2026 22:25	Dominique Garmier	CPPclang++18.1.3	Success	13,662
Mar 21, 2026 22:22	Dominique Garmier	CPPg++13.3.0	Error
Mar 21, 2026 22:22	Dominique Garmier	CPPclang++18.1.3	Error
Mar 21, 2026 22:20	Dominique Garmier	CPPg++13.3.0	Error
Mar 21, 2026 22:20	Dominique Garmier	CPPclang++18.1.3	Error
Mar 21, 2026 22:18	Dominique Garmier	CPPg++13.3.0	Success	24,961
Mar 21, 2026 22:18	Dominique Garmier	CPPclang++18.1.3	Success	23,559
Mar 21, 2026 22:16	Dominique Garmier	CPPg++13.3.0	Error
Mar 21, 2026 22:16	Dominique Garmier	CPPclang++18.1.3	Error
Mar 21, 2026 22:14	Dominique Garmier	CPPg++13.3.0	Success	29,198
Mar 21, 2026 22:14	Dominique Garmier	CPPclang++18.1.3	Success	29,555
Mar 21, 2026 22:12	Dominique Garmier	CPPg++13.3.0	Success	12,930
Mar 21, 2026 22:12	Dominique Garmier	CPPclang++18.1.3	Success	13,191
Mar 21, 2026 20:38	Dominique Garmier	CPPclang++18.1.3	Success	13,316
Mar 21, 2026 20:36	Dominique Garmier	CPPclang++18.1.3	Success	12,651
Mar 21, 2026 20:35	Dominique Garmier	CPPclang++18.1.3	Success	13,256
Mar 21, 2026 20:31	Dominique Garmier	CPPclang++18.1.3	Success	21,338
Mar 21, 2026 20:29	Dominique Garmier	CPPclang++18.1.3	Success	15,622
Mar 21, 2026 20:27	Dominique Garmier	CPPclang++18.1.3	Success	13,152
Mar 21, 2026 20:25	Dominique Garmier	CPPclang++18.1.3	Success	14,000
Mar 21, 2026 20:24	Dominique Garmier	CPPclang++18.1.3	Success	20,370
Mar 21, 2026 20:23	Dominique Garmier	CPPclang++18.1.3	Success	13,140
Mar 21, 2026 19:42	Dominique Garmier	GOgo1.26.1	Success	42,155
Mar 21, 2026 17:32	Dominique Garmier	RUSTrust-1.94.0	Success	12,441+13.16 RP
Mar 21, 2026 16:07	Dominique Garmier	RUSTrust-1.94.0	Success	18,613
Mar 21, 2026 15:51	Dominique Garmier	RUSTrust-1.94.0	Success	18,383
Mar 21, 2026 14:33	Dominique Garmier	RUSTrust-1.94.0	Success	116,624
Mar 21, 2026 13:41	Dominique Garmier	CPPg++13.3.0	Success	13,489
Mar 21, 2026 13:34	olliecrow	ZIG0.14.0	Success	16,064
Mar 21, 2026 13:14	Dominique Garmier	CPPg++13.3.0	Success	16,325
Mar 21, 2026 13:04	olliecrow	CPPclang++18.1.3	Success	18,290
Mar 21, 2026 12:59	Dominique Garmier	CPPclang++18.1.3	Success	13,272
Mar 21, 2026 12:58	Dominique Garmier	CPPclang++18.1.3	Success	15,649
Mar 21, 2026 12:35	Dominique Garmier	CPPg++13.3.0	Success	14,251
Mar 21, 2026 12:34	Dominique Garmier	CPPclang++18.1.3	Success	13,229
Mar 21, 2026 11:39	Dominique Garmier	CPPclang++18.1.3	Success	13,007
Mar 21, 2026 11:37	Dominique Garmier	CPPclang++18.1.3	Success	22,945
Mar 21, 2026 11:35	Dominique Garmier	CPPclang++18.1.3	Success	17,415
Mar 21, 2026 11:32	Dominique Garmier	CPPg++13.3.0	Success	12,873
Mar 21, 2026 10:18	Dominique Garmier	CSHARP9.0.14	Success	482,344
Mar 21, 2026 09:26	Dominique Garmier	ZIG0.13.0	Success	119,146
Mar 21, 2026 04:55	Yuriy Lyfenko	CPPg++13.3.0	Success	4,175
Mar 21, 2026 04:50	Yuriy Lyfenko	CPPg++13.3.0	Success	4,097
Mar 21, 2026 04:40	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 21, 2026 04:35	Yuriy Lyfenko	CPPg++13.3.0	Success	4,122
Mar 21, 2026 04:32	Yuriy Lyfenko	CPPg++13.3.0	Success	4,087
Mar 21, 2026 04:26	Yuriy Lyfenko	CPPclang++18.1.3	Success	4,338
Mar 21, 2026 04:16	olliecrow	GOgo1.26.1	Success	32,645
Mar 21, 2026 03:12	Dominique Garmier	GOgo1.26.1	Success	62,236
Mar 21, 2026 01:12	Dominique Garmier	CPPg++13.3.0	Success	14,157
Mar 21, 2026 01:12	Dominique Garmier	CPPclang++18.1.3	Success	13,109
Mar 21, 2026 01:09	Dominique Garmier	CPPclang++18.1.3	Success	13,651
Mar 21, 2026 01:08	Dominique Garmier	CPPclang++18.1.3	Success	23,614
Mar 21, 2026 01:06	Dominique Garmier	RUSTrust-1.94.0	Success	157,797
Mar 20, 2026 15:14	olliecrow	ZIG0.14.0	Success	3,312
Mar 20, 2026 15:05	olliecrow	ZIG0.14.0	Success	21,330
Mar 20, 2026 14:58	olliecrow	ZIG0.14.0	Success	3,292
Mar 20, 2026 14:46	olliecrow	ZIG0.14.0	Success	3,287

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