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 listFeb 7, 2026 05:11

Josu San MartinScore: 11,560Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 7, 2026 05:13	3,732	55,686,318	27,541,000	3,060,000	2,519,040
2	Feb 7, 2026 05:03	3,741	64,442,344	27,606,000	3,067,000	2,433,024
3	Feb 7, 2026 05:13	3,759	61,569,237	28,835,000	1,988,000	2,400,256
4	Feb 7, 2026 05:11	3,759	61,361,169	27,843,000	2,983,000	2,347,008
5	Feb 7, 2026 05:01	3,767	57,796,242	27,904,000	2,989,000	2,371,584
6	Feb 7, 2026 05:09	11,499	119,238,186	94,295,000	0	2,523,136
7	Feb 7, 2026 05:09	11,504	122,551,452	92,327,000	2,007,000	2,310,144
8	Feb 7, 2026 05:03	11,509	119,909,312	93,372,000	1,004,000	2,453,504
9	Feb 7, 2026 05:13	11,516	118,387,013	92,423,000	2,009,000	2,498,560
10	Feb 7, 2026 05:09	11,521	124,730,156	91,458,000	3,015,000	2,387,968
11	Feb 7, 2026 05:13	11,524	121,468,276	91,485,000	3,015,000	2,510,848
12	Feb 7, 2026 05:01	11,532	125,164,099	89,584,000	4,976,000	2,494,464
13	Feb 7, 2026 05:11	11,540	120,208,726	92,632,000	1,992,000	2,445,312
14	Feb 7, 2026 05:03	11,543	124,778,188	90,668,000	3,985,000	2,510,848
15	Feb 7, 2026 05:12	11,544	126,014,930	91,672,000	2,989,000	2,490,368
16	Feb 7, 2026 05:09	11,544	118,706,614	92,670,000	1,992,000	2,498,560
17	Feb 7, 2026 05:11	11,546	118,801,749	91,691,000	2,989,000	2,453,504
18	Feb 7, 2026 05:02	11,547	125,609,379	90,703,000	3,986,000	2,494,464
19	Feb 7, 2026 05:11	11,548	125,191,940	91,707,000	2,990,000	2,498,560
20	Feb 7, 2026 05:11	11,548	123,812,268	89,710,000	4,983,000	2,494,464
21	Feb 7, 2026 05:09	11,548	120,143,271	93,700,000	996,000	2,342,912
22	Feb 7, 2026 05:02	11,549	118,136,820	91,681,000	3,022,000	2,506,752
23	Feb 7, 2026 05:01	11,549	121,036,862	91,710,000	2,990,000	2,314,240
24	Feb 7, 2026 05:09	11,552	126,486,728	90,739,000	3,988,000	2,514,944
25	Feb 7, 2026 05:01	11,553	124,199,090	90,745,000	3,988,000	2,473,984
26	Feb 7, 2026 05:02	11,559	123,038,499	89,795,000	4,988,000	2,453,504
27	Feb 7, 2026 05:13	11,560	126,804,765	89,800,000	4,988,000	2,514,944
28	Feb 7, 2026 05:12	11,560	125,896,087	91,796,000	2,993,000	2,486,272
29	Feb 7, 2026 05:11	11,563	124,908,902	88,832,000	5,988,000	2,506,752
30	Feb 7, 2026 05:01	11,565	122,833,616	91,838,000	2,994,000	2,498,560
31	Feb 7, 2026 05:12	11,565	120,795,458	90,837,000	3,992,000	2,338,816
32	Feb 7, 2026 05:02	11,566	120,591,666	90,848,000	3,993,000	2,498,560
33	Feb 7, 2026 05:11	11,566	120,549,172	89,848,000	4,991,000	2,297,856
34	Feb 7, 2026 05:01	11,567	119,130,149	88,862,000	5,990,000	2,506,752
35	Feb 7, 2026 05:01	11,578	124,391,207	91,941,000	2,998,000	2,375,680
36	Feb 7, 2026 05:03	11,579	121,666,449	91,948,000	2,998,000	2,498,560
37	Feb 7, 2026 05:11	11,580	125,161,566	91,961,000	2,998,000	2,355,200
38	Feb 7, 2026 05:12	11,582	121,909,586	86,973,000	7,997,000	2,490,368
39	Feb 7, 2026 05:02	11,582	124,123,051	89,978,000	4,998,000	2,502,656
40	Feb 7, 2026 05:11	11,586	116,651,114	90,007,000	5,000,000	2,523,136
41	Feb 7, 2026 05:11	11,602	121,574,630	92,134,000	3,004,000	2,494,464
42	Feb 7, 2026 05:09	11,606	127,893,130	91,165,000	4,007,000	2,392,064
43	Feb 7, 2026 05:03	11,613	116,936,566	93,222,000	2,004,000	2,412,544
44	Feb 7, 2026 05:01	11,623	121,711,932	93,299,000	2,006,000	2,322,432
45	Feb 7, 2026 05:09	11,643	123,167,229	95,476,000	0	2,355,200
46	Feb 7, 2026 05:03	11,712	118,442,976	92,039,000	4,001,000	2,281,472
47	Feb 7, 2026 05:11	11,722	122,529,837	92,116,000	4,005,000	2,510,848
48	Feb 7, 2026 05:12	11,734	120,316,446	93,216,000	3,006,000	2,502,656
49	Feb 7, 2026 05:02	11,741	116,371,383	94,274,000	2,005,000	2,482,176
50	Feb 7, 2026 05:01	11,743	121,920,266	95,292,000	1,003,000	2,498,560
51	Feb 7, 2026 05:13	11,748	117,769,253	93,320,000	3,010,000	2,506,752
52	Feb 7, 2026 05:11	11,764	125,167,510	94,454,000	2,009,000	2,404,352
53	Feb 7, 2026 05:09	11,775	122,899,595	94,541,000	2,011,000	2,314,240
54	Feb 7, 2026 05:12	11,806	124,544,794	92,819,000	3,992,000	2,502,656

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