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: 102,254Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 00:19	100,689	59,765,790	34,235,000	3,020,000	2,416,640
2	Mar 21, 2026 00:33	101,181	57,842,701	34,402,000	3,035,000	2,412,544
3	Mar 21, 2026 00:27	101,241	63,276,442	35,435,000	2,024,000	2,404,352
4	Mar 21, 2026 00:26	101,432	60,523,532	34,487,000	3,043,000	2,498,560
5	Mar 21, 2026 00:21	101,492	62,561,738	35,523,000	2,029,000	2,408,448
6	Mar 21, 2026 00:22	101,538	63,025,312	35,539,000	2,030,000	2,539,520
7	Mar 21, 2026 00:19	101,551	63,714,202	36,559,000	1,015,000	2,342,912
8	Mar 21, 2026 00:19	101,559	68,131,896	35,546,000	2,031,000	2,416,640
9	Mar 21, 2026 00:23	101,562	66,140,829	36,563,000	1,015,000	2,408,448
10	Mar 21, 2026 00:26	101,635	64,770,578	35,573,000	2,032,000	2,338,816
11	Mar 21, 2026 00:30	101,641	66,306,145	35,575,000	2,032,000	2,330,624
12	Mar 21, 2026 00:25	101,711	65,105,323	35,599,000	2,034,000	2,342,912
13	Mar 21, 2026 00:32	101,714	62,266,442	35,600,000	2,034,000	2,342,912
14	Mar 21, 2026 00:24	101,735	64,041,912	35,608,000	2,034,000	2,412,544
15	Mar 21, 2026 00:27	101,770	64,812,525	35,620,000	2,035,000	2,342,912
16	Mar 21, 2026 00:28	101,795	63,928,817	36,647,000	1,017,000	2,342,912
17	Mar 21, 2026 00:26	101,822	65,972,101	35,638,000	2,036,000	2,342,912
18	Mar 21, 2026 00:20	101,846	65,730,387	36,665,000	1,018,000	2,396,160
19	Mar 21, 2026 00:30	102,203	62,198,159	35,825,000	1,990,000	2,342,912
20	Mar 21, 2026 00:24	102,235	60,153,845	34,841,000	2,986,000	2,420,736
21	Mar 21, 2026 00:24	102,235	66,168,005	34,841,000	2,986,000	2,342,912
22	Mar 21, 2026 00:31	102,235	64,119,691	35,837,000	1,990,000	2,416,640
23	Mar 21, 2026 00:23	102,243	67,879,816	35,839,000	1,991,000	2,330,624
24	Mar 21, 2026 00:22	102,246	65,091,764	33,849,000	3,982,000	2,326,528
25	Mar 21, 2026 00:28	102,254	67,428,307	35,843,000	1,991,000	2,342,912
26	Mar 21, 2026 00:32	102,259	67,736,706	34,849,000	2,987,000	2,408,448
27	Mar 21, 2026 00:25	102,265	62,186,249	35,847,000	1,991,000	2,342,912
28	Mar 21, 2026 00:27	102,319	63,319,219	35,866,000	1,992,000	2,342,912
29	Mar 21, 2026 00:22	102,330	64,592,549	34,873,000	2,989,000	2,334,720
30	Mar 21, 2026 00:33	102,349	65,966,856	35,876,000	1,993,000	2,342,912
31	Mar 21, 2026 00:19	102,357	69,412,099	34,883,000	2,989,000	2,342,912
32	Mar 21, 2026 00:23	102,408	63,407,661	36,867,000	1,024,000	2,342,912
33	Mar 21, 2026 00:31	102,414	64,812,644	33,905,000	3,988,000	2,342,912
34	Mar 21, 2026 00:33	102,422	62,996,667	35,902,000	1,994,000	2,535,424
35	Mar 21, 2026 00:32	102,559	67,899,271	34,952,000	2,995,000	2,412,544
36	Mar 21, 2026 00:21	102,681	68,616,031	35,993,000	1,999,000	2,404,352
37	Mar 21, 2026 00:21	102,716	64,507,823	37,005,000	1,000,000	2,342,912
38	Mar 21, 2026 00:29	102,722	64,212,827	35,007,000	3,000,000	2,342,912
39	Mar 21, 2026 00:31	102,770	70,625,069	36,024,000	2,001,000	2,342,912
40	Mar 21, 2026 00:19	102,805	68,083,767	35,035,000	3,003,000	2,342,912
41	Mar 21, 2026 00:25	102,930	65,336,694	36,080,000	2,004,000	2,342,912
42	Mar 21, 2026 00:20	103,005	66,842,836	35,104,000	3,008,000	2,412,544
43	Mar 21, 2026 00:28	103,070	66,594,047	35,126,000	3,010,000	2,330,624
44	Mar 21, 2026 00:19	103,314	62,226,222	35,209,000	3,017,000	2,342,912
45	Mar 21, 2026 00:30	103,481	63,041,395	36,273,000	2,015,000	2,326,528
46	Mar 21, 2026 00:29	103,676	58,493,469	35,332,000	3,028,000	2,326,528
47	Mar 21, 2026 00:29	104,011	63,694,516	36,459,000	2,025,000	2,342,912
48	Mar 21, 2026 00:20	108,981	89,256,975	37,299,000	3,024,000	2,347,008

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