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 listAug 2, 2022 22:51

Robert Burke

Score: 5,113

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Aug 2, 2022 22:51	4,798	62,082,216	35,309,000	4,035,000	2,322,432
2	Aug 2, 2022 22:49	4,838	64,286,862	31,536,000	8,138,000	2,523,136
3	Aug 2, 2022 22:49	4,854	67,666,438	29,853,000	9,951,000	2,433,024
4	Aug 2, 2022 22:51	4,864	62,576,601	30,908,000	8,973,000	2,461,696
5	Aug 2, 2022 22:51	4,886	70,613,596	32,053,000	8,013,000	2,404,352
6	Aug 2, 2022 22:49	4,922	63,473,844	30,271,000	10,090,000	2,412,544
7	Aug 2, 2022 22:49	4,931	63,862,402	32,345,000	8,086,000	2,342,912
8	Aug 2, 2022 22:51	4,938	61,611,110	30,367,000	10,122,000	2,482,176
9	Aug 2, 2022 22:49	4,976	61,921,186	31,849,000	8,957,000	2,273,280
10	Aug 2, 2022 22:51	4,984	68,322,142	32,893,000	7,974,000	2,469,888
11	Aug 2, 2022 22:51	4,987	62,712,688	33,915,000	6,982,000	2,523,136
12	Aug 2, 2022 22:51	4,989	63,998,516	30,930,000	9,977,000	2,523,136
13	Aug 2, 2022 22:49	5,016	64,710,355	30,094,000	11,034,000	2,322,432
14	Aug 2, 2022 22:49	5,055	61,558,348	29,317,000	12,131,000	2,498,560
15	Aug 2, 2022 22:51	5,086	103,673,442	41,701,473	0	2,224,128
16	Aug 2, 2022 22:51	5,113	63,986,334	29,947,000	11,978,000	2,502,656
17	Aug 2, 2022 22:49	5,124	69,435,070	32,015,000	10,004,000	2,527,232
18	Aug 2, 2022 22:49	5,138	66,332,809	33,103,000	9,028,000	2,424,832
19	Aug 2, 2022 22:51	5,144	66,971,908	32,137,000	10,042,000	2,441,216
20	Aug 2, 2022 22:49	5,173	104,750,934	42,414,735	0	2,248,704
21	Aug 2, 2022 22:50	5,212	106,375,491	42,738,934	0	2,187,264
22	Aug 2, 2022 22:51	5,214	103,350,447	42,758,152	0	2,203,648
23	Aug 2, 2022 22:49	5,226	105,339,803	42,849,909	0	2,174,976
24	Aug 2, 2022 22:49	5,263	109,632,987	43,153,030	0	2,240,512
25	Aug 2, 2022 22:52	5,266	108,854,924	43,183,798	0	2,289,664
26	Aug 2, 2022 22:52	5,268	99,835,107	43,199,264	0	2,224,128
27	Aug 2, 2022 22:50	5,278	101,430,570	43,278,335	0	2,179,072
28	Aug 2, 2022 22:51	5,365	105,523,430	43,993,575	0	2,277,376
29	Aug 2, 2022 22:50	5,503	104,188,527	45,123,476	0	2,183,168
30	Aug 2, 2022 22:52	5,606	100,853,350	45,966,742	0	2,260,992

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