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 05:13	100,689	62,365,553	35,242,000	2,013,000	2,383,872
2	Mar 21, 2026 05:14	100,722	59,581,933	35,253,000	2,014,000	2,342,912
3	Mar 21, 2026 05:08	100,746	59,669,423	34,254,000	3,022,000	2,473,984
4	Mar 21, 2026 05:06	101,022	61,740,070	34,348,000	3,030,000	2,342,912
5	Mar 21, 2026 05:12	101,222	59,729,999	34,416,000	3,036,000	2,342,912
6	Mar 21, 2026 05:16	101,227	59,845,563	36,442,000	1,012,000	2,379,776
7	Mar 21, 2026 05:04	101,235	62,761,464	34,420,000	3,037,000	2,334,720
8	Mar 21, 2026 05:07	101,378	61,965,491	35,483,000	2,027,000	2,342,912
9	Mar 21, 2026 05:10	101,546	66,981,528	36,557,000	1,015,000	2,334,720
10	Mar 21, 2026 05:09	101,614	66,241,774	35,565,000	2,032,000	2,334,720
11	Mar 21, 2026 05:13	101,719	64,526,799	35,602,000	2,034,000	2,342,912
12	Mar 21, 2026 05:11	101,730	66,311,542	36,595,000	1,045,000	2,379,776
13	Mar 21, 2026 05:16	101,757	68,564,444	36,633,000	1,017,000	2,387,968
14	Mar 21, 2026 05:11	101,830	67,046,920	35,641,000	2,036,000	2,342,912
15	Mar 21, 2026 05:11	101,832	67,907,058	35,642,000	2,036,000	2,334,720
16	Mar 21, 2026 05:11	101,892	63,044,362	35,663,000	2,037,000	2,375,680
17	Mar 21, 2026 05:10	102,176	65,979,548	35,816,000	1,989,000	2,342,912
18	Mar 21, 2026 05:07	102,184	63,783,980	35,819,000	1,989,000	2,342,912
19	Mar 21, 2026 05:06	102,208	66,062,542	35,827,000	1,990,000	2,342,912
20	Mar 21, 2026 05:05	102,230	61,413,561	36,830,000	995,000	2,330,624
21	Mar 21, 2026 05:13	102,268	69,477,845	35,848,000	1,991,000	2,342,912
22	Mar 21, 2026 05:15	102,268	70,456,113	34,852,000	2,987,000	2,342,912
23	Mar 21, 2026 05:04	102,273	62,360,850	34,854,000	2,987,000	2,342,912
24	Mar 21, 2026 05:04	102,273	64,067,323	35,850,000	1,991,000	2,342,912
25	Mar 21, 2026 05:07	102,276	60,424,175	34,855,000	2,987,000	2,342,912
26	Mar 21, 2026 05:13	102,276	66,763,418	34,855,000	2,987,000	2,387,968
27	Mar 21, 2026 05:11	102,281	64,101,737	35,853,000	1,991,000	2,342,912
28	Mar 21, 2026 05:08	102,311	66,610,166	36,859,000	996,000	2,383,872
29	Mar 21, 2026 05:15	102,349	66,148,034	34,880,000	2,989,000	2,342,912
30	Mar 21, 2026 05:12	102,386	65,484,764	35,890,000	1,993,000	2,383,872
31	Mar 21, 2026 05:14	102,416	65,327,159	35,900,000	1,994,000	2,379,776
32	Mar 21, 2026 05:09	102,430	68,366,991	34,907,000	2,992,000	2,383,872
33	Mar 21, 2026 05:11	102,446	67,988,815	35,857,000	2,048,000	2,379,776
34	Mar 21, 2026 05:15	102,478	60,073,352	34,924,000	2,993,000	2,379,776
35	Mar 21, 2026 05:04	102,573	68,033,258	34,956,000	2,996,000	2,379,776
36	Mar 21, 2026 05:13	102,643	68,032,207	35,980,000	1,998,000	2,342,912
37	Mar 21, 2026 05:10	102,657	67,054,405	34,985,000	2,998,000	2,342,912
38	Mar 21, 2026 05:04	102,673	67,846,146	35,990,000	1,999,000	2,342,912
39	Mar 21, 2026 05:15	102,692	72,817,962	35,997,000	1,999,000	2,383,872
40	Mar 21, 2026 05:09	102,705	62,652,482	36,001,000	2,000,000	2,342,912
41	Mar 21, 2026 05:13	102,730	63,641,411	35,010,000	3,000,000	2,375,680
42	Mar 21, 2026 05:15	102,822	65,029,032	36,042,000	2,002,000	2,371,584
43	Mar 21, 2026 05:05	102,865	65,111,993	36,057,000	2,003,000	2,342,912
44	Mar 21, 2026 05:05	102,908	62,731,049	36,072,000	2,004,000	2,342,912
45	Mar 21, 2026 05:08	102,911	66,513,631	36,073,000	2,004,000	2,375,680
46	Mar 21, 2026 05:15	102,932	61,646,653	35,079,000	3,006,000	2,342,912
47	Mar 21, 2026 05:14	103,014	71,354,467	35,106,000	3,009,000	2,371,584
48	Mar 21, 2026 05:04	103,030	61,874,730	35,112,000	3,009,000	2,375,680
49	Mar 21, 2026 05:06	103,046	59,650,795	36,121,000	2,006,000	2,498,560
50	Mar 21, 2026 05:16	103,073	61,828,334	37,134,000	1,003,000	2,379,776
51	Mar 21, 2026 05:12	103,997	60,420,712	35,442,000	3,037,000	2,342,912

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