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 05:17

Josu San MartinScore: 11,198Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Feb 7, 2026 05:17	3,371	51,864,608	25,594,000	2,047,000	2,498,560
2	Feb 7, 2026 05:16	3,373	57,487,336	25,610,000	2,048,000	2,514,944
3	Feb 7, 2026 04:43	3,379	53,570,414	27,708,000	0	2,482,176
4	Feb 7, 2026 04:40	3,380	53,285,016	27,712,000	0	2,514,944
5	Feb 7, 2026 04:43	3,390	56,203,544	26,809,000	992,000	2,478,080
6	Feb 7, 2026 04:43	3,391	55,445,389	26,814,000	993,000	2,519,040
7	Feb 7, 2026 05:28	3,391	52,963,160	25,823,000	1,986,000	2,514,944
8	Feb 7, 2026 04:43	3,393	56,324,771	25,835,000	1,987,000	2,514,944
9	Feb 7, 2026 04:40	3,395	54,220,842	26,843,000	994,000	2,514,944
10	Feb 7, 2026 04:43	3,395	57,363,121	26,846,000	994,000	2,519,040
11	Feb 7, 2026 05:17	3,396	53,162,983	25,862,000	1,989,000	2,478,080
12	Feb 7, 2026 04:43	3,396	59,291,691	25,861,000	1,989,000	2,412,544
13	Feb 7, 2026 05:28	3,401	55,735,000	24,903,000	2,988,000	2,441,216
14	Feb 7, 2026 04:40	11,154	120,661,032	89,452,000	2,010,000	2,338,816
15	Feb 7, 2026 04:40	11,178	121,467,922	89,671,000	1,992,000	2,392,064
16	Feb 7, 2026 04:43	11,184	122,675,159	89,716,000	1,993,000	2,318,336
17	Feb 7, 2026 04:43	11,184	123,769,220	90,713,000	996,000	2,359,296
18	Feb 7, 2026 05:17	11,184	123,855,711	89,713,000	1,993,000	2,351,104
19	Feb 7, 2026 05:16	11,185	116,698,568	90,719,000	996,000	2,334,720
20	Feb 7, 2026 04:43	11,185	118,214,899	88,729,000	2,990,000	2,408,448
21	Feb 7, 2026 04:43	11,189	124,332,559	89,753,000	1,994,000	2,269,184
22	Feb 7, 2026 04:40	11,190	118,044,870	87,768,000	3,989,000	2,404,352
23	Feb 7, 2026 05:28	11,190	125,122,330	88,767,000	2,992,000	2,379,776
24	Feb 7, 2026 05:16	11,191	124,719,652	88,778,000	2,992,000	2,363,392
25	Feb 7, 2026 04:43	11,193	119,317,610	87,796,000	3,990,000	2,273,280
26	Feb 7, 2026 04:43	11,194	119,048,095	87,798,000	3,990,000	2,330,624
27	Feb 7, 2026 04:43	11,197	129,913,379	89,823,000	1,996,000	2,392,064
28	Feb 7, 2026 04:43	11,198	118,079,555	90,825,000	998,000	2,367,488
29	Feb 7, 2026 05:17	11,199	120,715,493	90,836,000	998,000	2,396,160
30	Feb 7, 2026 05:28	11,199	122,471,132	89,834,000	1,996,000	2,482,176
31	Feb 7, 2026 04:40	11,199	118,217,689	90,837,000	998,000	2,342,912
32	Feb 7, 2026 05:28	11,203	119,905,740	89,870,000	1,997,000	2,363,392
33	Feb 7, 2026 04:43	11,204	119,875,150	91,875,000	0	2,269,184
34	Feb 7, 2026 05:16	11,205	122,922,582	88,882,000	2,996,000	2,457,600
35	Feb 7, 2026 05:28	11,205	115,698,254	89,887,000	1,997,000	2,379,776
36	Feb 7, 2026 05:17	11,206	117,663,491	88,894,000	2,996,000	2,527,232
37	Feb 7, 2026 05:28	11,206	119,808,211	89,892,000	1,997,000	2,412,544
38	Feb 7, 2026 04:43	11,207	125,593,875	89,903,000	1,997,000	2,408,448
39	Feb 7, 2026 04:40	11,208	116,409,940	88,908,000	2,996,000	2,334,720
40	Feb 7, 2026 05:17	11,210	124,046,999	89,922,000	1,998,000	2,359,296
41	Feb 7, 2026 04:43	11,217	116,243,679	90,983,000	999,000	2,465,792
42	Feb 7, 2026 04:43	11,221	120,301,545	90,015,000	2,000,000	2,469,888
43	Feb 7, 2026 04:43	11,221	110,990,160	91,009,000	1,000,000	2,347,008
44	Feb 7, 2026 05:17	11,222	116,874,489	92,023,000	0	2,400,256
45	Feb 7, 2026 04:43	11,224	116,866,973	90,038,000	2,000,000	2,342,912
46	Feb 7, 2026 05:28	11,229	115,791,084	90,077,000	2,001,000	2,412,544
47	Feb 7, 2026 04:43	11,229	114,907,788	90,075,000	2,001,000	2,330,624
48	Feb 7, 2026 04:40	11,230	114,983,763	90,085,000	2,001,000	2,473,984
49	Feb 7, 2026 05:17	11,233	116,779,602	89,104,000	3,003,000	2,342,912
50	Feb 7, 2026 05:16	11,236	116,700,954	89,128,000	3,004,000	2,314,240
51	Feb 7, 2026 05:16	11,238	114,437,532	90,151,000	2,003,000	2,363,392
52	Feb 7, 2026 05:28	11,241	122,217,089	89,170,000	3,005,000	2,433,024
53	Feb 7, 2026 05:17	11,249	119,195,787	91,239,000	1,002,000	2,273,280
54	Feb 7, 2026 04:40	11,520	125,426,397	94,463,000	0	2,314,240

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