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: 102,235Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 03:54	100,527	64,431,123	35,185,000	2,010,000	2,342,912
2	Mar 21, 2026 04:02	100,781	61,139,065	34,266,000	3,023,000	2,465,792
3	Mar 21, 2026 03:56	100,884	60,147,567	35,310,000	2,017,000	2,387,968
4	Mar 21, 2026 03:55	100,927	60,307,338	35,325,000	2,018,000	2,342,912
5	Mar 21, 2026 03:58	100,932	60,415,266	35,327,000	2,018,000	2,330,624
6	Mar 21, 2026 03:57	100,938	59,511,922	34,319,000	3,028,000	2,342,912
7	Mar 21, 2026 03:48	100,970	66,204,035	34,330,000	3,029,000	2,375,680
8	Mar 21, 2026 03:55	101,370	61,293,254	35,480,000	2,027,000	2,342,912
9	Mar 21, 2026 03:50	101,465	59,188,879	36,528,000	1,014,000	2,387,968
10	Mar 21, 2026 03:48	101,470	63,556,080	34,500,000	3,044,000	2,375,680
11	Mar 21, 2026 03:58	101,476	68,476,416	36,532,000	1,014,000	2,342,912
12	Mar 21, 2026 04:01	101,492	65,454,609	36,538,000	1,014,000	2,383,872
13	Mar 21, 2026 03:48	101,503	58,388,486	36,541,000	1,015,000	2,351,104
14	Mar 21, 2026 03:58	101,530	62,044,100	35,536,000	2,030,000	2,375,680
15	Mar 21, 2026 03:58	101,570	61,581,493	35,550,000	2,031,000	2,322,432
16	Mar 21, 2026 03:55	101,614	62,604,925	35,565,000	2,032,000	2,375,680
17	Mar 21, 2026 03:51	101,627	66,798,300	35,570,000	2,032,000	2,342,912
18	Mar 21, 2026 04:02	101,646	66,761,693	35,577,000	2,032,000	2,342,912
19	Mar 21, 2026 03:54	101,657	65,605,331	35,580,000	2,033,000	2,371,584
20	Mar 21, 2026 04:00	101,665	59,621,204	35,583,000	2,033,000	2,342,912
21	Mar 21, 2026 03:50	101,684	68,663,055	36,607,000	1,016,000	2,375,680
22	Mar 21, 2026 03:53	101,738	69,517,315	36,626,000	1,017,000	2,371,584
23	Mar 21, 2026 04:02	101,762	66,110,801	36,635,000	1,017,000	2,342,912
24	Mar 21, 2026 03:51	101,805	69,082,974	36,650,000	1,018,000	2,342,912
25	Mar 21, 2026 03:53	101,827	64,874,493	35,640,000	2,036,000	2,379,776
26	Mar 21, 2026 03:59	102,211	71,586,343	34,833,000	2,985,000	2,387,968
27	Mar 21, 2026 03:56	102,224	60,132,359	35,833,000	1,990,000	2,342,912
28	Mar 21, 2026 03:53	102,235	60,523,252	35,837,000	1,990,000	2,498,560
29	Mar 21, 2026 03:48	102,238	61,831,107	34,842,000	2,986,000	2,342,912
30	Mar 21, 2026 03:51	102,241	60,631,085	36,834,000	995,000	2,342,912
31	Mar 21, 2026 04:02	102,262	62,515,131	36,842,000	995,000	2,383,872
32	Mar 21, 2026 03:51	102,262	64,910,513	35,846,000	1,991,000	2,371,584
33	Mar 21, 2026 03:59	102,286	62,669,374	35,855,000	1,991,000	2,498,560
34	Mar 21, 2026 04:00	102,286	64,584,631	34,859,000	2,987,000	2,342,912
35	Mar 21, 2026 03:50	102,292	63,893,841	34,860,000	2,988,000	2,375,680
36	Mar 21, 2026 04:02	102,322	60,552,495	35,867,000	1,992,000	2,371,584
37	Mar 21, 2026 03:55	102,362	69,123,982	34,884,000	2,990,000	2,342,912
38	Mar 21, 2026 03:58	102,362	66,065,529	37,874,000	0	2,342,912
39	Mar 21, 2026 04:01	102,430	69,363,405	34,907,000	2,992,000	2,387,968
40	Mar 21, 2026 04:02	102,465	62,843,395	35,917,000	1,995,000	2,375,680
41	Mar 21, 2026 03:56	102,592	64,453,773	34,963,000	2,996,000	2,342,912
42	Mar 21, 2026 03:58	102,719	62,261,046	36,006,000	2,000,000	2,383,872
43	Mar 21, 2026 04:01	102,827	70,588,468	36,044,000	2,002,000	2,379,776
44	Mar 21, 2026 03:57	102,878	66,194,642	36,062,000	2,003,000	2,486,272
45	Mar 21, 2026 03:55	102,924	62,644,786	35,076,000	3,006,000	2,342,912
46	Mar 21, 2026 03:48	102,943	65,804,073	35,082,000	3,007,000	2,342,912
47	Mar 21, 2026 03:54	102,946	68,172,779	35,083,000	3,007,000	2,379,776
48	Mar 21, 2026 03:57	103,070	66,340,836	35,126,000	3,010,000	2,379,776
49	Mar 21, 2026 03:48	103,105	65,158,363	36,142,000	2,007,000	2,326,528
50	Mar 21, 2026 03:51	103,224	71,230,454	36,183,000	2,010,000	2,342,912
51	Mar 21, 2026 04:00	103,286	58,552,693	36,205,000	2,011,000	2,342,912
52	Mar 21, 2026 03:59	103,411	63,742,625	35,242,000	3,020,000	2,342,912
53	Mar 21, 2026 03:51	104,132	66,715,735	36,502,000	2,027,000	2,322,432
54	Mar 21, 2026 03:55	104,424	68,681,302	37,593,000	1,044,000	2,379,776

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