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.

Back to listJan 15, 2025 20:01

Ian Mckibben

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Jan 15, 2025 19:40	0	0	0	0	0	Error: No answer to stdout. Died or killed?
2	Jan 15, 2025 20:04	13,443	136,624,174	109,234,000	1,002,000	2,306,048
3	Jan 15, 2025 20:04	13,450	135,423,870	108,286,000	2,005,000	2,293,760
4	Jan 15, 2025 20:04	13,463	137,082,693	109,393,000	1,003,000	2,301,952
5	Jan 15, 2025 20:04	13,469	128,471,000	109,443,000	1,004,000	2,318,336
6	Jan 15, 2025 20:04	13,470	136,595,175	109,454,000	1,004,000	2,277,376
7	Jan 15, 2025 20:04	13,471	137,107,440	109,458,000	1,004,000	2,326,528
8	Jan 15, 2025 20:04	13,481	139,828,293	109,542,000	1,004,000	2,297,856
9	Jan 15, 2025 20:04	13,507	138,001,752	107,767,000	2,993,000	2,523,136
10	Jan 15, 2025 20:04	13,525	137,419,325	108,908,000	1,998,000	2,387,968
11	Jan 15, 2025 20:02	13,601	137,321,938	110,522,000	1,004,000	2,437,120
12	Jan 15, 2025 20:02	13,605	142,350,343	110,560,000	1,005,000	2,482,176
13	Jan 15, 2025 20:02	13,610	139,362,778	111,602,000	0	2,383,872
14	Jan 15, 2025 20:02	13,619	138,545,235	109,679,000	1,994,000	2,445,312
15	Jan 15, 2025 20:02	13,626	135,768,231	110,739,000	997,000	2,396,160
16	Jan 15, 2025 20:02	13,634	138,090,872	109,800,000	1,996,000	2,437,120
17	Jan 15, 2025 20:02	13,639	137,207,515	109,844,000	1,997,000	2,371,584
18	Jan 15, 2025 20:02	13,647	142,423,917	108,905,000	2,997,000	2,437,120
19	Jan 15, 2025 20:02	13,653	136,191,549	109,958,000	1,999,000	2,387,968
20	Jan 15, 2025 19:39	18,540	180,972,821	150,032,000	2,000,000	2,494,464
21	Jan 15, 2025 19:39	18,736	183,163,374	151,640,000	1,995,000	2,498,560
22	Jan 15, 2025 19:39	18,763	181,025,942	151,862,000	1,998,000	2,490,368
23	Jan 15, 2025 19:39	18,972	183,610,257	153,575,000	1,994,000	2,408,448
24	Jan 15, 2025 19:39	19,001	180,183,923	153,810,000	1,997,000	2,498,560
25	Jan 15, 2025 19:39	19,039	175,679,254	154,119,000	2,001,000	2,416,640
26	Jan 15, 2025 19:39	19,124	185,787,819	154,816,000	1,997,000	2,494,464
27	Jan 15, 2025 19:39	19,197	183,111,642	156,410,000	1,002,000	2,498,560
28	Jan 15, 2025 19:39	19,339	187,101,801	157,575,000	1,003,000	2,416,640
29	Jan 15, 2025 20:01	42,133	372,394,590	344,486,000	1,001,000	2,519,040
30	Jan 15, 2025 20:01	42,908	381,785,592	349,845,000	1,999,000	2,281,472
31	Jan 15, 2025 20:01	43,462	383,051,256	354,389,000	2,002,000	2,281,472

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