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: 102,262Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 23:51	100,727	64,121,057	34,248,000	3,021,000	2,408,448
2	Mar 20, 2026 23:40	100,916	62,694,333	34,312,000	3,027,000	2,330,624
3	Mar 20, 2026 23:47	100,951	61,189,813	34,324,000	3,028,000	2,408,448
4	Mar 20, 2026 23:46	101,027	61,177,243	34,350,000	3,030,000	2,404,352
5	Mar 20, 2026 23:38	101,138	63,665,465	34,387,000	3,034,000	2,404,352
6	Mar 20, 2026 23:36	101,168	61,284,347	35,409,000	2,023,000	2,400,256
7	Mar 20, 2026 23:42	101,230	58,158,104	35,431,000	2,024,000	2,412,544
8	Mar 20, 2026 23:33	101,251	57,446,879	35,438,000	2,025,000	2,342,912
9	Mar 20, 2026 23:48	101,327	62,476,148	35,465,000	2,026,000	2,342,912
10	Mar 20, 2026 23:49	101,389	62,310,778	34,473,000	3,041,000	2,338,816
11	Mar 20, 2026 23:48	101,438	57,320,843	36,518,000	1,014,000	2,342,912
12	Mar 20, 2026 23:35	101,489	61,655,060	35,522,000	2,029,000	2,330,624
13	Mar 20, 2026 23:47	101,578	69,214,120	36,569,000	1,015,000	2,342,912
14	Mar 20, 2026 23:38	101,586	61,238,500	35,556,000	2,031,000	2,404,352
15	Mar 20, 2026 23:45	101,651	62,050,996	35,578,000	2,033,000	2,342,912
16	Mar 20, 2026 23:37	101,681	63,932,458	36,606,000	1,016,000	2,404,352
17	Mar 20, 2026 23:51	101,686	73,366,402	36,608,000	1,016,000	2,404,352
18	Mar 20, 2026 23:49	101,768	67,201,603	36,637,000	1,017,000	2,342,912
19	Mar 20, 2026 23:35	101,786	61,362,078	35,626,000	2,035,000	2,330,624
20	Mar 20, 2026 23:33	101,838	65,743,460	35,644,000	2,036,000	2,404,352
21	Mar 20, 2026 23:36	101,841	65,945,872	35,645,000	2,036,000	2,510,848
22	Mar 20, 2026 23:50	102,165	61,211,465	35,812,000	1,989,000	2,404,352
23	Mar 20, 2026 23:40	102,170	63,603,114	35,814,000	1,989,000	2,342,912
24	Mar 20, 2026 23:46	102,189	63,942,727	35,820,000	1,990,000	2,342,912
25	Mar 20, 2026 23:49	102,200	62,183,356	35,824,000	1,990,000	2,342,912
26	Mar 20, 2026 23:43	102,216	64,022,227	34,835,000	2,985,000	2,342,912
27	Mar 20, 2026 23:37	102,251	65,923,057	34,847,000	2,986,000	2,326,528
28	Mar 20, 2026 23:39	102,259	67,446,166	36,841,000	995,000	2,523,136
29	Mar 20, 2026 23:47	102,262	63,897,523	35,846,000	1,991,000	2,342,912
30	Mar 20, 2026 23:44	102,284	63,620,977	33,862,000	3,983,000	2,342,912
31	Mar 20, 2026 23:48	102,286	63,111,899	35,855,000	1,991,000	2,342,912
32	Mar 20, 2026 23:42	102,335	69,574,914	34,875,000	2,989,000	2,519,040
33	Mar 20, 2026 23:47	102,354	68,336,878	35,878,000	1,993,000	2,404,352
34	Mar 20, 2026 23:44	102,362	65,204,787	36,878,000	996,000	2,412,544
35	Mar 20, 2026 23:36	102,386	62,243,270	34,893,000	2,990,000	2,342,912
36	Mar 20, 2026 23:43	102,411	62,272,266	35,898,000	1,994,000	2,342,912
37	Mar 20, 2026 23:50	102,446	62,663,837	35,910,000	1,995,000	2,408,448
38	Mar 20, 2026 23:45	102,451	66,198,582	36,883,000	1,024,000	2,408,448
39	Mar 20, 2026 23:38	102,478	64,670,974	34,924,000	2,993,000	2,404,352
40	Mar 20, 2026 23:39	102,522	64,325,250	35,937,000	1,996,000	2,342,912
41	Mar 20, 2026 23:39	102,614	70,721,053	34,970,000	2,997,000	2,342,912
42	Mar 20, 2026 23:38	102,665	62,808,456	35,987,000	1,999,000	2,342,912
43	Mar 20, 2026 23:35	102,676	65,420,803	35,991,000	1,999,000	2,342,912
44	Mar 20, 2026 23:46	102,708	60,622,265	36,002,000	2,000,000	2,404,352
45	Mar 20, 2026 23:38	102,738	65,790,066	35,012,000	3,001,000	2,342,912
46	Mar 20, 2026 23:38	102,765	71,463,909	35,968,000	2,055,000	2,408,448
47	Mar 20, 2026 23:44	102,768	65,402,285	36,023,000	2,001,000	2,342,912
48	Mar 20, 2026 23:37	102,781	66,088,704	36,028,000	2,001,000	2,342,912
49	Mar 20, 2026 23:47	102,878	73,160,410	36,062,000	2,003,000	2,342,912
50	Mar 20, 2026 23:42	102,922	61,665,480	37,052,000	1,029,000	2,404,352
51	Mar 20, 2026 23:45	103,086	59,881,582	35,131,000	3,011,000	2,342,912
52	Mar 20, 2026 23:43	103,216	65,706,700	35,175,000	3,015,000	2,342,912
53	Mar 20, 2026 23:51	103,235	60,326,847	36,187,000	2,010,000	2,400,256
54	Mar 20, 2026 23:33	103,454	64,553,777	36,264,000	2,014,000	2,387,968
55	Mar 20, 2026 23:40	108,078	65,309,205	37,063,000	2,926,000	2,408,448
56	Mar 20, 2026 23:50	108,746	75,931,754	38,274,000	1,962,000	2,347,008
57	Mar 20, 2026 23:47	109,570	71,333,136	39,528,000	1,013,000	2,408,448

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