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 listJul 8, 2025 20:03

Adam FolwarcznyScore: 120,651Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 8, 2025 20:03	5,635	68,775,155	43,197,000	3,013,000	2,318,336
2	Jul 8, 2025 20:08	5,740	72,397,076	45,069,000	2,003,000	2,281,472
3	Jul 8, 2025 20:10	5,756	71,157,869	44,186,000	3,012,000	2,465,792
4	Jul 8, 2025 20:08	5,789	68,956,506	45,448,000	2,019,000	2,433,024
5	Jul 8, 2025 20:07	5,824	78,157,611	47,759,000	0	2,424,832
6	Jul 8, 2025 20:08	5,869	72,080,387	44,116,000	4,010,000	2,490,368
7	Jul 8, 2025 20:11	75,043	640,659,913	501,471,000	113,880,000	2,371,584
8	Jul 8, 2025 20:10	82,854	706,378,851	551,514,000	127,887,000	2,293,760
9	Jul 8, 2025 20:09	87,832	746,775,650	597,357,000	122,867,000	2,416,640
10	Jul 8, 2025 20:08	88,617	749,912,901	600,718,000	125,940,000	2,330,624
11	Jul 8, 2025 20:08	92,068	783,025,763	630,133,000	124,828,000	2,326,528
12	Jul 8, 2025 20:05	93,367	787,668,030	653,667,000	111,942,000	2,338,816
13	Jul 8, 2025 20:11	94,523	801,361,090	662,221,000	112,867,000	2,301,952
14	Jul 8, 2025 20:08	96,691	819,421,290	670,887,000	121,979,000	2,400,256
15	Jul 8, 2025 20:08	98,261	833,461,253	683,781,000	121,961,000	2,306,048
16	Jul 8, 2025 20:03	99,864	845,862,399	709,898,000	108,984,000	2,416,640
17	Jul 8, 2025 20:04	100,003	845,226,346	699,172,000	120,856,000	2,297,856
18	Jul 8, 2025 20:08	103,678	877,291,019	738,274,000	111,889,000	2,293,760
19	Jul 8, 2025 20:09	108,211	911,770,315	763,425,000	123,906,000	2,285,568
20	Jul 8, 2025 20:09	111,987	948,343,171	789,393,000	128,901,000	2,306,048
21	Jul 8, 2025 20:08	112,705	947,682,357	814,280,000	109,902,000	2,293,760
22	Jul 8, 2025 20:08	113,280	953,372,719	802,047,000	126,849,000	2,355,200
23	Jul 8, 2025 20:06	113,639	959,108,204	816,984,000	114,857,000	2,273,280
24	Jul 8, 2025 20:08	115,392	970,946,710	820,320,000	125,895,000	2,281,472
25	Jul 8, 2025 20:09	119,992	1,008,022,420	867,063,000	116,873,000	2,371,584
26	Jul 8, 2025 20:05	120,651	1,010,471,913	876,412,000	112,924,000	2,285,568
27	Jul 8, 2025 20:05	121,788	1,025,872,898	873,707,000	124,958,000	2,510,848
28	Jul 8, 2025 20:10	122,438	1,026,734,095	881,114,000	122,876,000	2,322,432
29	Jul 8, 2025 20:05	123,262	1,036,842,549	891,896,000	118,853,000	2,293,760
30	Jul 8, 2025 20:10	123,579	1,037,466,708	902,421,000	110,928,000	2,281,472
31	Jul 8, 2025 20:03	124,377	1,042,604,427	896,024,000	123,865,000	2,392,064
32	Jul 8, 2025 20:04	125,505	1,053,215,933	908,239,000	120,898,000	2,289,664
33	Jul 8, 2025 20:08	126,664	1,072,507,920	916,807,000	121,841,000	2,293,760
34	Jul 8, 2025 20:07	127,701	1,072,834,472	923,250,000	123,899,000	2,416,640
35	Jul 8, 2025 20:07	127,986	1,071,697,433	945,538,000	103,949,000	2,400,256
36	Jul 8, 2025 20:09	128,390	1,082,228,357	935,928,000	116,866,000	2,375,680
37	Jul 8, 2025 20:10	129,287	1,082,337,633	946,246,000	113,909,000	2,461,696
38	Jul 8, 2025 20:09	129,400	1,085,353,181	945,183,000	115,899,000	2,289,664
39	Jul 8, 2025 20:06	130,758	1,097,157,287	958,297,000	113,916,000	2,293,760
40	Jul 8, 2025 20:04	130,830	1,099,510,621	953,939,000	118,867,000	2,396,160
41	Jul 8, 2025 20:07	131,037	1,101,171,459	958,561,000	115,946,000	2,424,832
42	Jul 8, 2025 20:05	131,434	1,106,937,719	971,878,000	105,877,000	2,420,736
43	Jul 8, 2025 20:03	132,899	1,115,223,800	969,910,000	119,865,000	2,301,952
44	Jul 8, 2025 20:06	140,678	1,181,959,653	1,041,698,000	111,860,000	2,301,952
45	Jul 8, 2025 20:03	144,468	1,216,137,865	1,067,772,000	116,865,000	2,281,472
46	Jul 8, 2025 20:10	146,800	1,229,534,571	1,083,880,000	119,876,000	2,281,472
47	Jul 8, 2025 20:07	148,604	1,243,134,907	1,101,596,000	116,957,000	2,297,856
48	Jul 8, 2025 20:11	152,986	1,281,317,994	1,133,630,000	120,854,000	2,400,256
49	Jul 8, 2025 20:03	154,002	1,290,242,460	1,154,917,000	107,898,000	2,281,472
50	Jul 8, 2025 20:07	156,153	1,310,258,484	1,162,594,000	117,857,000	2,416,640
51	Jul 8, 2025 20:05	160,014	1,340,923,205	1,207,267,000	104,849,000	2,281,472

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