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 listMar 20, 2026 01:27

Dominique GarmierScore: 12,648Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 01:10	12,585	129,451,045	102,193,000	1,001,000	2,375,680
2	Mar 20, 2026 00:54	12,597	129,242,309	102,295,000	1,002,000	2,379,776
3	Mar 20, 2026 00:48	12,598	130,838,209	103,304,000	0	2,326,528
4	Mar 20, 2026 01:10	12,601	125,692,815	103,329,000	0	2,371,584
5	Mar 20, 2026 01:34	12,602	128,274,127	100,331,000	3,009,000	2,379,776
6	Mar 20, 2026 01:21	12,605	124,622,210	101,354,000	2,007,000	2,322,432
7	Mar 20, 2026 01:21	12,606	125,639,540	102,368,000	1,003,000	2,355,200
8	Mar 20, 2026 00:54	12,608	129,739,153	100,377,000	3,011,000	2,318,336
9	Mar 20, 2026 01:34	12,609	132,984,807	101,386,000	2,007,000	2,363,392
10	Mar 20, 2026 01:27	12,610	127,112,159	102,397,000	1,003,000	2,363,392
11	Mar 20, 2026 00:48	12,612	130,961,628	103,416,000	0	2,363,392
12	Mar 20, 2026 01:17	12,612	127,776,936	102,417,000	1,004,000	2,367,488
13	Mar 20, 2026 01:34	12,615	131,038,970	103,444,000	0	2,293,760
14	Mar 20, 2026 00:54	12,616	126,315,591	102,449,000	1,004,000	2,371,584
15	Mar 20, 2026 00:48	12,617	131,763,238	103,459,000	0	2,371,584
16	Mar 20, 2026 01:17	12,618	132,456,550	102,462,000	1,004,000	2,314,240
17	Mar 20, 2026 00:54	12,620	128,842,286	102,479,000	1,004,000	2,387,968
18	Mar 20, 2026 00:54	12,620	129,435,213	102,481,000	1,004,000	2,310,144
19	Mar 20, 2026 01:17	12,621	129,882,720	103,496,000	0	2,306,048
20	Mar 20, 2026 01:38	12,621	130,613,885	102,495,000	995,000	2,318,336
21	Mar 20, 2026 01:34	12,622	131,615,491	103,500,000	0	2,310,144
22	Mar 20, 2026 01:10	12,623	130,652,846	103,509,000	0	2,310,144
23	Mar 20, 2026 00:54	12,626	134,531,304	101,522,000	2,010,000	2,379,776
24	Mar 20, 2026 00:48	12,626	129,572,835	101,520,000	2,010,000	2,314,240
25	Mar 20, 2026 00:48	12,631	128,981,370	101,560,000	2,011,000	2,347,008
26	Mar 20, 2026 00:48	12,631	132,254,355	103,571,000	0	2,342,912
27	Mar 20, 2026 01:34	12,632	133,177,230	102,579,000	1,005,000	2,363,392
28	Mar 20, 2026 01:34	12,632	132,975,649	102,579,000	1,005,000	2,367,488
29	Mar 20, 2026 01:24	12,634	129,971,861	103,598,000	0	2,310,144
30	Mar 20, 2026 00:54	12,635	127,149,060	102,600,000	1,005,000	2,359,296
31	Mar 20, 2026 00:48	12,637	130,712,052	101,610,000	2,012,000	2,371,584
32	Mar 20, 2026 01:38	12,638	129,943,141	102,625,000	1,006,000	2,306,048
33	Mar 20, 2026 01:06	12,639	132,021,190	102,647,000	996,000	2,306,048
34	Mar 20, 2026 01:04	12,648	132,314,316	100,723,000	2,991,000	2,326,528
35	Mar 20, 2026 01:17	12,648	126,966,188	102,719,000	997,000	2,351,104
36	Mar 20, 2026 01:17	12,648	129,323,594	102,718,000	997,000	2,412,544
37	Mar 20, 2026 00:48	12,649	129,553,187	101,724,000	1,994,000	2,363,392
38	Mar 20, 2026 01:17	12,651	131,139,543	102,745,000	997,000	2,297,856
39	Mar 20, 2026 01:10	12,651	132,569,413	100,744,000	2,992,000	2,355,200
40	Mar 20, 2026 00:50	12,651	127,467,311	102,738,000	997,000	2,371,584
41	Mar 20, 2026 00:54	12,652	129,710,767	100,755,000	2,992,000	2,355,200
42	Mar 20, 2026 01:17	12,652	134,533,871	101,748,000	1,995,000	2,355,200
43	Mar 20, 2026 01:06	12,654	130,372,367	102,766,000	997,000	2,367,488
44	Mar 20, 2026 01:10	12,655	130,915,845	101,779,000	1,995,000	2,347,008
45	Mar 20, 2026 01:24	12,656	131,642,809	101,788,000	1,995,000	2,396,160
46	Mar 20, 2026 00:50	12,656	135,017,151	102,783,000	997,000	2,334,720
47	Mar 20, 2026 01:10	12,657	133,045,018	101,792,000	1,995,000	2,338,816
48	Mar 20, 2026 01:04	12,657	129,580,952	102,791,000	997,000	2,359,296
49	Mar 20, 2026 00:50	12,658	133,274,776	101,798,000	1,996,000	2,322,432
50	Mar 20, 2026 01:04	12,658	133,263,900	101,798,000	1,996,000	2,359,296
51	Mar 20, 2026 01:30	12,663	133,937,619	101,837,000	1,996,000	2,289,664
52	Mar 20, 2026 01:24	12,663	135,175,925	102,836,000	998,000	2,519,040
53	Mar 20, 2026 01:34	12,664	129,759,054	101,846,000	1,996,000	2,342,912
54	Mar 20, 2026 01:34	12,664	130,917,739	100,846,000	2,995,000	2,326,528
55	Mar 20, 2026 01:10	12,664	134,669,559	102,848,000	998,000	2,306,048
56	Mar 20, 2026 01:30	12,667	137,118,375	102,875,000	998,000	2,367,488
57	Mar 20, 2026 01:17	12,668	130,817,005	101,884,000	1,997,000	2,330,624
58	Mar 20, 2026 01:17	12,668	134,353,606	101,880,000	1,997,000	2,408,448
59	Mar 20, 2026 01:06	12,669	131,445,297	102,889,000	998,000	2,371,584
60	Mar 20, 2026 01:38	12,670	129,530,696	101,900,000	1,998,000	2,367,488
61	Mar 20, 2026 01:34	12,677	129,593,361	102,955,000	999,000	2,424,832
62	Mar 20, 2026 00:54	12,677	135,204,183	101,951,000	1,999,000	2,330,624
63	Mar 20, 2026 01:21	12,680	129,681,719	102,974,000	999,000	2,306,048
64	Mar 20, 2026 01:27	12,683	130,013,013	101,998,000	1,999,000	2,400,256
65	Mar 20, 2026 00:48	12,700	127,471,817	102,141,000	2,002,000	2,310,144
66	Mar 20, 2026 01:10	12,717	135,461,585	102,271,000	2,005,000	2,375,680
67	Mar 20, 2026 01:30	12,720	132,622,692	103,306,000	1,002,000	2,330,624
68	Mar 20, 2026 01:10	12,738	127,906,194	103,447,000	1,004,000	2,265,088
69	Mar 20, 2026 01:27	12,753	134,568,469	103,567,000	1,005,000	2,322,432

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