TopK

Find the sum of the 100 largest values in 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 uint64 sum of the top 100 greatest values, printed as a decimal string.

Restrictions:60s512Mb 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.

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olliecrowScore: 102,276Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 01:45	100,054	62,625,708	35,019,000	2,001,000	2,396,160
2	Mar 21, 2026 01:43	100,578	58,559,689	35,203,000	2,011,000	2,342,912
3	Mar 21, 2026 01:47	100,868	58,834,895	35,304,000	2,017,000	2,342,912
4	Mar 21, 2026 02:02	100,924	59,169,358	34,315,000	3,027,000	2,342,912
5	Mar 21, 2026 01:48	101,005	56,092,940	35,352,000	2,020,000	2,379,776
6	Mar 21, 2026 01:58	101,059	57,784,331	35,371,000	2,021,000	2,342,912
7	Mar 21, 2026 02:03	101,073	61,125,739	35,376,000	2,021,000	2,387,968
8	Mar 21, 2026 01:51	101,127	59,099,044	34,384,000	3,033,000	2,342,912
9	Mar 21, 2026 01:43	101,151	64,049,274	34,392,000	3,034,000	2,342,912
10	Mar 21, 2026 01:44	101,168	57,390,878	35,409,000	2,023,000	2,498,560
11	Mar 21, 2026 01:44	101,265	61,743,599	34,430,000	3,038,000	2,473,984
12	Mar 21, 2026 02:03	101,476	63,016,295	35,517,000	2,029,000	2,387,968
13	Mar 21, 2026 01:51	101,492	64,803,189	35,523,000	2,029,000	2,334,720
14	Mar 21, 2026 01:53	101,559	59,740,282	36,562,000	1,015,000	2,375,680
15	Mar 21, 2026 01:58	101,614	69,091,092	35,565,000	2,032,000	2,392,064
16	Mar 21, 2026 01:51	101,630	63,726,416	36,587,000	1,016,000	2,387,968
17	Mar 21, 2026 01:56	101,703	68,296,473	35,596,000	2,034,000	2,342,912
18	Mar 21, 2026 01:56	101,711	64,780,192	35,599,000	2,034,000	2,342,912
19	Mar 21, 2026 01:45	101,727	63,515,059	36,622,000	1,017,000	2,375,680
20	Mar 21, 2026 01:43	101,741	62,355,646	36,627,000	1,017,000	2,338,816
21	Mar 21, 2026 01:45	101,776	67,720,449	36,640,000	1,017,000	2,342,912
22	Mar 21, 2026 01:54	101,784	61,767,682	35,625,000	2,035,000	2,375,680
23	Mar 21, 2026 01:59	101,870	63,550,783	36,674,000	1,018,000	2,383,872
24	Mar 21, 2026 02:03	102,224	70,771,295	35,833,000	1,990,000	2,342,912
25	Mar 21, 2026 01:51	102,230	67,084,373	33,844,000	3,981,000	2,334,720
26	Mar 21, 2026 01:47	102,241	65,464,937	36,834,000	995,000	2,334,720
27	Mar 21, 2026 01:43	102,273	64,089,937	34,854,000	2,987,000	2,330,624
28	Mar 21, 2026 01:47	102,276	61,476,328	34,855,000	2,987,000	2,342,912
29	Mar 21, 2026 01:47	102,297	67,165,524	35,858,000	1,992,000	2,342,912
30	Mar 21, 2026 01:47	102,308	67,362,116	35,862,000	1,992,000	2,379,776
31	Mar 21, 2026 01:48	102,319	69,319,647	36,862,000	996,000	2,375,680
32	Mar 21, 2026 01:51	102,335	62,743,480	35,818,000	2,046,000	2,342,912
33	Mar 21, 2026 01:47	102,351	62,358,821	35,877,000	1,993,000	2,379,776
34	Mar 21, 2026 01:50	102,389	63,683,383	34,894,000	2,990,000	2,342,912
35	Mar 21, 2026 01:54	102,400	66,250,211	36,864,000	1,024,000	2,383,872
36	Mar 21, 2026 01:43	102,419	65,380,273	34,904,000	2,991,000	2,342,912
37	Mar 21, 2026 02:02	102,538	67,888,116	35,943,000	1,996,000	2,387,968
38	Mar 21, 2026 01:51	102,589	62,745,705	35,961,000	1,997,000	2,392,064
39	Mar 21, 2026 01:50	102,649	71,233,638	34,982,000	2,998,000	2,342,912
40	Mar 21, 2026 01:54	102,692	65,070,193	34,997,000	2,999,000	2,383,872
41	Mar 21, 2026 01:45	102,716	63,433,884	35,005,000	3,000,000	2,514,944
42	Mar 21, 2026 01:45	102,776	65,709,105	35,025,000	3,002,000	2,387,968
43	Mar 21, 2026 01:45	102,827	65,299,360	35,043,000	3,003,000	2,342,912
44	Mar 21, 2026 01:44	102,838	64,446,912	36,048,000	2,002,000	2,342,912
45	Mar 21, 2026 02:02	102,889	65,136,907	35,064,000	3,005,000	2,498,560
46	Mar 21, 2026 01:56	102,946	64,226,064	35,083,000	3,007,000	2,379,776
47	Mar 21, 2026 01:58	103,230	69,140,662	36,185,000	2,010,000	2,498,560
48	Mar 21, 2026 01:59	103,286	65,404,669	36,205,000	2,011,000	2,498,560
49	Mar 21, 2026 01:48	103,508	59,927,706	36,283,000	2,015,000	2,383,872
50	Mar 21, 2026 01:53	103,843	65,664,888	38,422,000	0	2,379,776
51	Mar 21, 2026 01:50	103,989	58,919,622	36,451,000	2,025,000	2,342,912
52	Mar 21, 2026 01:43	105,068	62,591,055	35,885,000	2,990,000	2,330,624
53	Mar 21, 2026 01:53	105,489	72,528,106	34,027,000	5,004,000	2,318,336
54	Mar 21, 2026 01:59	107,059	64,859,620	37,632,000	1,980,000	2,355,200

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