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: 102,268Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 02:56	100,654	59,126,579	35,229,000	2,013,000	2,379,776
2	Mar 21, 2026 02:52	100,659	60,012,197	33,218,000	4,026,000	2,342,912
3	Mar 21, 2026 02:48	100,873	63,293,886	34,297,000	3,026,000	2,342,912
4	Mar 21, 2026 02:57	100,916	62,679,501	35,321,000	2,018,000	2,342,912
5	Mar 21, 2026 02:47	101,016	59,875,313	34,346,000	3,030,000	2,342,912
6	Mar 21, 2026 02:47	101,057	61,108,098	35,370,000	2,021,000	2,342,912
7	Mar 21, 2026 02:49	101,095	61,913,094	34,373,000	3,032,000	2,342,912
8	Mar 21, 2026 02:51	101,105	58,464,863	35,387,000	2,022,000	2,392,064
9	Mar 21, 2026 03:00	101,111	57,889,605	34,378,000	3,033,000	2,392,064
10	Mar 21, 2026 02:54	101,200	62,587,639	35,420,000	2,024,000	2,342,912
11	Mar 21, 2026 02:53	101,346	63,400,046	36,485,000	1,013,000	2,342,912
12	Mar 21, 2026 02:49	101,354	61,231,745	36,488,000	1,013,000	2,342,912
13	Mar 21, 2026 02:52	101,378	58,571,689	35,483,000	2,027,000	2,334,720
14	Mar 21, 2026 02:51	101,403	58,959,444	35,491,000	2,028,000	2,379,776
15	Mar 21, 2026 03:01	101,459	59,048,990	36,526,000	1,014,000	2,379,776
16	Mar 21, 2026 02:57	101,514	63,133,303	36,545,000	1,015,000	2,342,912
17	Mar 21, 2026 02:55	101,638	61,371,042	35,574,000	2,032,000	2,342,912
18	Mar 21, 2026 02:52	101,786	65,308,098	35,626,000	2,035,000	2,387,968
19	Mar 21, 2026 02:47	101,819	69,309,039	36,655,000	1,018,000	2,342,912
20	Mar 21, 2026 02:57	101,835	66,930,235	36,661,000	1,018,000	2,383,872
21	Mar 21, 2026 02:49	101,838	63,677,399	35,644,000	2,036,000	2,387,968
22	Mar 21, 2026 02:49	101,857	65,758,379	35,650,000	2,037,000	2,342,912
23	Mar 21, 2026 02:52	102,184	65,727,549	34,824,000	2,984,000	2,342,912
24	Mar 21, 2026 02:54	102,246	61,673,572	34,845,000	2,986,000	2,342,912
25	Mar 21, 2026 02:58	102,249	72,029,850	35,841,000	1,991,000	2,342,912
26	Mar 21, 2026 02:52	102,268	67,730,991	35,848,000	1,991,000	2,387,968
27	Mar 21, 2026 02:55	102,281	66,529,648	34,857,000	2,987,000	2,342,912
28	Mar 21, 2026 02:48	102,286	63,049,247	34,859,000	2,987,000	2,383,872
29	Mar 21, 2026 02:53	102,292	66,279,498	35,856,000	1,992,000	2,342,912
30	Mar 21, 2026 02:58	102,332	71,256,671	35,871,000	1,992,000	2,392,064
31	Mar 21, 2026 02:48	102,357	69,063,821	35,879,000	1,993,000	2,375,680
32	Mar 21, 2026 02:56	102,386	70,391,061	35,890,000	1,993,000	2,387,968
33	Mar 21, 2026 02:47	102,389	68,864,721	34,894,000	2,990,000	2,363,392
34	Mar 21, 2026 03:01	102,400	69,345,802	35,894,000	1,994,000	2,334,720
35	Mar 21, 2026 02:57	102,441	64,291,310	35,909,000	1,994,000	2,383,872
36	Mar 21, 2026 02:58	102,454	61,429,245	35,913,000	1,995,000	2,371,584
37	Mar 21, 2026 02:57	102,505	62,734,083	34,933,000	2,994,000	2,383,872
38	Mar 21, 2026 02:52	102,538	67,951,607	34,944,000	2,995,000	2,342,912
39	Mar 21, 2026 03:01	102,551	65,051,713	35,947,000	1,997,000	2,334,720
40	Mar 21, 2026 02:53	102,554	68,788,557	34,950,000	2,995,000	2,342,912
41	Mar 21, 2026 03:00	102,659	62,412,970	35,985,000	1,999,000	2,342,912
42	Mar 21, 2026 02:47	102,697	67,858,477	35,999,000	1,999,000	2,334,720
43	Mar 21, 2026 02:47	102,835	62,503,603	35,046,000	3,003,000	2,342,912
44	Mar 21, 2026 02:56	102,911	68,576,986	37,075,000	1,002,000	2,342,912
45	Mar 21, 2026 02:49	103,022	63,286,689	36,112,000	2,006,000	2,342,912
46	Mar 21, 2026 02:54	103,224	69,970,302	36,183,000	2,010,000	2,383,872
47	Mar 21, 2026 03:00	103,286	61,577,317	35,199,000	3,017,000	2,392,064
48	Mar 21, 2026 02:55	103,381	61,940,633	36,238,000	2,013,000	2,338,816
49	Mar 21, 2026 02:57	103,462	60,480,143	36,267,000	2,014,000	2,342,912
50	Mar 21, 2026 02:51	103,878	62,023,816	35,401,000	3,034,000	2,342,912
51	Mar 21, 2026 02:49	107,922	72,461,208	37,935,000	1,996,000	2,387,968

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