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: 102,270Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 01:40	100,608	58,667,186	35,213,000	2,012,000	2,383,872
2	Mar 21, 2026 01:33	100,768	66,755,467	34,261,000	3,023,000	2,383,872
3	Mar 21, 2026 01:34	101,014	59,329,963	35,355,000	2,020,000	2,342,912
4	Mar 21, 2026 01:39	101,073	64,207,738	34,365,000	3,032,000	2,342,912
5	Mar 21, 2026 01:41	101,086	60,060,748	34,370,000	3,032,000	2,326,528
6	Mar 21, 2026 01:35	101,105	57,760,008	34,376,000	3,033,000	2,342,912
7	Mar 21, 2026 01:37	101,178	62,484,571	34,401,000	3,035,000	2,342,912
8	Mar 21, 2026 01:35	101,222	58,082,960	35,428,000	2,024,000	2,342,912
9	Mar 21, 2026 01:30	101,281	58,570,289	36,462,000	1,012,000	2,371,584
10	Mar 21, 2026 01:35	101,324	61,722,944	36,477,000	1,013,000	2,379,776
11	Mar 21, 2026 01:34	101,332	68,250,142	35,467,000	2,026,000	2,342,912
12	Mar 21, 2026 01:38	101,438	59,865,163	35,504,000	2,028,000	2,342,912
13	Mar 21, 2026 01:28	101,454	65,348,017	35,509,000	2,029,000	2,486,272
14	Mar 21, 2026 01:40	101,476	59,794,513	36,532,000	1,014,000	2,379,776
15	Mar 21, 2026 01:32	101,524	61,094,209	36,549,000	1,015,000	2,330,624
16	Mar 21, 2026 01:32	101,616	64,390,612	36,582,000	1,016,000	2,379,776
17	Mar 21, 2026 01:38	101,789	65,496,381	35,627,000	2,035,000	2,383,872
18	Mar 21, 2026 01:33	101,808	65,349,005	36,651,000	1,018,000	2,392,064
19	Mar 21, 2026 01:29	102,138	64,784,539	34,808,000	2,983,000	2,379,776
20	Mar 21, 2026 01:39	102,181	69,383,790	36,813,000	994,000	2,326,528
21	Mar 21, 2026 01:39	102,222	67,492,028	36,827,000	995,000	2,342,912
22	Mar 21, 2026 01:28	102,232	68,711,259	34,840,000	2,986,000	2,379,776
23	Mar 21, 2026 01:39	102,254	63,070,171	35,843,000	1,991,000	2,383,872
24	Mar 21, 2026 01:39	102,262	66,167,884	34,850,000	2,987,000	2,342,912
25	Mar 21, 2026 01:30	102,265	66,533,529	34,851,000	2,987,000	2,342,912
26	Mar 21, 2026 01:29	102,270	69,369,499	35,849,000	1,991,000	2,342,912
27	Mar 21, 2026 01:35	102,273	63,789,775	34,854,000	2,987,000	2,383,872
28	Mar 21, 2026 01:36	102,308	64,212,376	35,862,000	1,992,000	2,375,680
29	Mar 21, 2026 01:37	102,316	68,631,301	35,865,000	1,992,000	2,342,912
30	Mar 21, 2026 01:41	102,319	66,892,944	35,866,000	1,992,000	2,342,912
31	Mar 21, 2026 01:29	102,335	66,856,968	36,841,000	1,023,000	2,342,912
32	Mar 21, 2026 01:37	102,354	64,316,371	36,875,000	996,000	2,383,872
33	Mar 21, 2026 01:35	102,362	62,227,536	34,884,000	2,990,000	2,379,776
34	Mar 21, 2026 01:36	102,405	63,898,485	34,899,000	2,991,000	2,387,968
35	Mar 21, 2026 01:40	102,432	66,988,048	35,906,000	1,994,000	2,379,776
36	Mar 21, 2026 01:39	102,465	68,106,771	35,917,000	1,995,000	2,342,912
37	Mar 21, 2026 01:29	102,476	62,551,033	35,921,000	1,995,000	2,383,872
38	Mar 21, 2026 01:36	102,500	64,769,513	34,931,000	2,994,000	2,342,912
39	Mar 21, 2026 01:31	102,632	66,586,646	34,976,000	2,998,000	2,342,912
40	Mar 21, 2026 01:29	102,714	70,960,484	35,004,000	3,000,000	2,342,912
41	Mar 21, 2026 01:34	102,776	64,974,732	35,025,000	3,002,000	2,342,912
42	Mar 21, 2026 01:28	102,800	67,546,698	35,034,000	3,002,000	2,342,912
43	Mar 21, 2026 01:33	102,851	64,938,807	36,053,000	2,002,000	2,383,872
44	Mar 21, 2026 01:38	103,100	63,011,728	35,136,000	3,011,000	2,396,160
45	Mar 21, 2026 01:30	103,165	67,749,875	36,162,000	2,009,000	2,375,680
46	Mar 21, 2026 01:35	103,176	63,180,236	36,166,000	2,009,000	2,334,720
47	Mar 21, 2026 01:41	103,257	70,722,516	36,195,000	2,010,000	2,342,912
48	Mar 21, 2026 01:31	103,595	59,986,678	36,313,000	2,017,000	2,387,968
49	Mar 21, 2026 01:31	103,614	59,391,241	35,311,000	3,026,000	2,392,064
50	Mar 21, 2026 01:32	104,116	61,226,297	37,510,000	1,013,000	2,342,912
51	Mar 21, 2026 01:29	106,097	69,133,532	35,331,000	3,925,000	2,379,776

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