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: 102,243Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 04:05	100,654	61,443,904	35,229,000	2,013,000	2,342,912
2	Mar 21, 2026 04:11	100,692	58,571,519	35,243,000	2,013,000	2,342,912
3	Mar 21, 2026 04:12	100,924	61,705,545	34,315,000	3,027,000	2,371,584
4	Mar 21, 2026 04:10	100,935	57,787,098	35,328,000	2,018,000	2,342,912
5	Mar 21, 2026 04:11	100,992	67,715,851	35,348,000	2,019,000	2,342,912
6	Mar 21, 2026 04:13	101,011	64,364,815	34,344,000	3,030,000	2,375,680
7	Mar 21, 2026 04:17	101,149	64,835,334	34,391,000	3,034,000	2,383,872
8	Mar 21, 2026 04:16	101,176	62,804,440	34,400,000	3,035,000	2,379,776
9	Mar 21, 2026 04:07	101,278	64,141,740	36,461,000	1,012,000	2,342,912
10	Mar 21, 2026 04:26	101,300	63,970,031	36,468,000	1,013,000	2,379,776
11	Mar 21, 2026 04:17	101,327	62,926,934	36,478,000	1,013,000	2,392,064
12	Mar 21, 2026 04:07	101,370	57,863,044	35,480,000	2,027,000	2,342,912
13	Mar 21, 2026 04:18	101,430	68,646,324	35,501,000	2,028,000	2,342,912
14	Mar 21, 2026 04:24	101,511	63,584,839	35,529,000	2,030,000	2,383,872
15	Mar 21, 2026 04:21	101,586	67,668,029	36,572,000	1,015,000	2,387,968
16	Mar 21, 2026 04:18	101,662	64,547,189	35,582,000	2,033,000	2,379,776
17	Mar 21, 2026 04:22	101,662	63,428,225	36,599,000	1,016,000	2,342,912
18	Mar 21, 2026 04:22	101,684	63,158,418	36,607,000	1,016,000	2,379,776
19	Mar 21, 2026 04:09	101,724	67,973,363	36,621,000	1,017,000	2,342,912
20	Mar 21, 2026 04:10	101,824	66,119,559	35,639,000	2,036,000	2,342,912
21	Mar 21, 2026 04:12	101,843	62,855,602	36,664,000	1,018,000	2,342,912
22	Mar 21, 2026 04:09	101,843	67,554,210	36,664,000	1,018,000	2,383,872
23	Mar 21, 2026 04:08	102,192	60,100,482	35,821,000	1,990,000	2,342,912
24	Mar 21, 2026 04:16	102,211	67,457,626	34,833,000	2,985,000	2,342,912
25	Mar 21, 2026 04:19	102,216	63,364,403	35,830,000	1,990,000	2,342,912
26	Mar 21, 2026 04:24	102,227	62,366,476	34,838,000	2,986,000	2,342,912
27	Mar 21, 2026 04:16	102,235	66,471,159	36,832,000	995,000	2,371,584
28	Mar 21, 2026 04:12	102,243	63,178,304	34,844,000	2,986,000	2,383,872
29	Mar 21, 2026 04:12	102,243	62,987,179	35,839,000	1,991,000	2,342,912
30	Mar 21, 2026 04:23	102,276	61,890,279	34,855,000	2,987,000	2,342,912
31	Mar 21, 2026 04:11	102,286	62,982,581	34,859,000	2,987,000	2,482,176
32	Mar 21, 2026 04:21	102,332	65,802,696	36,867,000	996,000	2,342,912
33	Mar 21, 2026 04:08	102,405	63,015,475	35,896,000	1,994,000	2,342,912
34	Mar 21, 2026 04:05	102,416	61,300,323	34,903,000	2,991,000	2,342,912
35	Mar 21, 2026 04:09	102,481	67,752,276	35,923,000	1,995,000	2,342,912
36	Mar 21, 2026 04:23	102,503	61,549,553	34,932,000	2,994,000	2,506,752
37	Mar 21, 2026 04:26	102,514	69,560,902	34,936,000	2,994,000	2,342,912
38	Mar 21, 2026 04:05	102,630	65,221,132	34,976,000	2,997,000	2,342,912
39	Mar 21, 2026 04:12	102,692	61,378,261	35,997,000	1,999,000	2,383,872
40	Mar 21, 2026 04:26	102,724	64,311,082	35,008,000	3,000,000	2,379,776
41	Mar 21, 2026 04:24	102,792	63,533,762	36,032,000	2,001,000	2,342,912
42	Mar 21, 2026 04:22	102,808	64,600,530	35,036,000	3,003,000	2,375,680
43	Mar 21, 2026 04:17	102,876	67,343,131	35,059,000	3,005,000	2,342,912
44	Mar 21, 2026 04:08	103,092	62,894,937	35,133,000	3,011,000	2,342,912
45	Mar 21, 2026 04:19	103,186	68,147,354	35,165,000	3,014,000	2,342,912
46	Mar 21, 2026 04:21	103,205	68,451,372	35,172,000	3,014,000	2,363,392
47	Mar 21, 2026 04:13	103,205	63,959,048	36,177,000	2,009,000	2,330,624
48	Mar 21, 2026 04:13	103,332	70,747,107	36,221,000	2,012,000	2,375,680
49	Mar 21, 2026 04:19	103,411	67,459,567	35,242,000	3,020,000	2,383,872
50	Mar 21, 2026 04:10	103,443	63,493,677	36,260,000	2,014,000	2,342,912
51	Mar 21, 2026 04:07	103,676	64,299,545	35,332,000	3,028,000	2,494,464
52	Mar 21, 2026 04:23	103,738	62,159,662	36,363,000	2,020,000	2,371,584
53	Mar 21, 2026 04:18	104,041	63,681,430	35,456,000	3,039,000	2,379,776
54	Mar 21, 2026 04:12	109,716	71,625,139	38,566,000	2,029,000	2,539,520

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