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: 102,281Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 01:07	100,589	65,921,510	35,207,000	2,011,000	2,342,912
2	Mar 21, 2026 01:12	100,762	58,802,058	35,267,000	2,015,000	2,392,064
3	Mar 21, 2026 01:23	100,781	60,221,034	34,266,000	3,023,000	2,342,912
4	Mar 21, 2026 01:08	101,076	64,045,987	35,377,000	2,021,000	2,379,776
5	Mar 21, 2026 01:07	101,116	62,167,894	35,391,000	2,022,000	2,342,912
6	Mar 21, 2026 01:24	101,146	59,431,343	35,402,000	2,022,000	2,392,064
7	Mar 21, 2026 01:22	101,170	58,475,460	35,410,000	2,023,000	2,342,912
8	Mar 21, 2026 01:24	101,243	55,549,298	34,423,000	3,037,000	2,392,064
9	Mar 21, 2026 01:10	101,278	58,113,185	34,435,000	3,038,000	2,387,968
10	Mar 21, 2026 01:08	101,305	58,412,511	36,470,000	1,013,000	2,392,064
11	Mar 21, 2026 01:14	101,346	63,203,156	36,485,000	1,013,000	2,342,912
12	Mar 21, 2026 01:18	101,427	59,122,114	36,514,000	1,014,000	2,338,816
13	Mar 21, 2026 01:19	101,527	62,320,490	36,522,000	1,043,000	2,392,064
14	Mar 21, 2026 01:16	101,532	56,578,270	35,537,000	2,030,000	2,392,064
15	Mar 21, 2026 01:20	101,541	67,022,691	36,555,000	1,015,000	2,342,912
16	Mar 21, 2026 01:11	101,559	61,538,610	36,562,000	1,015,000	2,342,912
17	Mar 21, 2026 01:10	101,565	65,932,061	36,564,000	1,015,000	2,342,912
18	Mar 21, 2026 01:21	101,627	64,410,452	36,586,000	1,016,000	2,392,064
19	Mar 21, 2026 01:22	101,630	63,264,797	36,587,000	1,016,000	2,392,064
20	Mar 21, 2026 01:23	101,654	66,503,837	35,579,000	2,033,000	2,387,968
21	Mar 21, 2026 01:13	101,665	63,328,552	35,583,000	2,033,000	2,342,912
22	Mar 21, 2026 01:21	101,689	66,904,774	35,592,000	2,033,000	2,342,912
23	Mar 21, 2026 01:08	101,743	65,138,508	35,611,000	2,034,000	2,342,912
24	Mar 21, 2026 01:14	101,849	65,473,733	35,647,000	2,037,000	2,342,912
25	Mar 21, 2026 01:21	102,176	64,046,529	35,816,000	1,989,000	2,342,912
26	Mar 21, 2026 01:09	102,232	58,637,379	35,836,000	1,990,000	2,392,064
27	Mar 21, 2026 01:11	102,243	67,853,355	36,835,000	995,000	2,330,624
28	Mar 21, 2026 01:24	102,249	65,200,837	35,841,000	1,991,000	2,383,872
29	Mar 21, 2026 01:21	102,265	65,504,054	35,847,000	1,991,000	2,342,912
30	Mar 21, 2026 01:18	102,273	65,484,063	35,850,000	1,991,000	2,342,912
31	Mar 21, 2026 01:25	102,281	63,923,390	35,853,000	1,991,000	2,387,968
32	Mar 21, 2026 01:11	102,292	66,013,705	35,856,000	1,992,000	2,379,776
33	Mar 21, 2026 01:09	102,338	62,517,149	35,873,000	1,992,000	2,383,872
34	Mar 21, 2026 01:20	102,414	59,882,087	35,899,000	1,994,000	2,342,912
35	Mar 21, 2026 01:14	102,486	65,011,584	34,927,000	2,993,000	2,392,064
36	Mar 21, 2026 01:23	102,530	61,919,931	34,941,000	2,995,000	2,342,912
37	Mar 21, 2026 01:25	102,557	67,979,236	35,949,000	1,997,000	2,334,720
38	Mar 21, 2026 01:16	102,559	61,132,183	35,950,000	1,997,000	2,514,944
39	Mar 21, 2026 01:24	102,643	65,372,442	35,980,000	1,998,000	2,342,912
40	Mar 21, 2026 01:21	102,765	67,511,630	36,022,000	2,001,000	2,379,776
41	Mar 21, 2026 01:20	102,849	64,995,052	35,050,000	3,004,000	2,326,528
42	Mar 21, 2026 01:18	102,868	61,912,255	36,058,000	2,003,000	2,387,968
43	Mar 21, 2026 01:12	102,976	63,097,228	36,096,000	2,005,000	2,383,872
44	Mar 21, 2026 01:09	102,992	64,665,238	36,102,000	2,005,000	2,342,912
45	Mar 21, 2026 01:22	103,051	64,623,488	36,123,000	2,006,000	2,342,912
46	Mar 21, 2026 01:19	103,141	63,426,980	36,154,000	2,008,000	2,342,912
47	Mar 21, 2026 01:10	103,251	64,479,619	36,193,000	2,010,000	2,387,968
48	Mar 21, 2026 01:16	103,254	70,757,125	36,194,000	2,010,000	2,342,912
49	Mar 21, 2026 01:13	103,268	60,673,283	37,177,000	1,032,000	2,342,912
50	Mar 21, 2026 01:08	103,359	62,525,628	35,224,000	3,019,000	2,387,968
51	Mar 21, 2026 01:08	103,543	63,290,918	36,295,000	2,016,000	2,342,912
52	Mar 21, 2026 01:12	103,543	68,402,402	36,295,000	2,016,000	2,383,872
53	Mar 21, 2026 01:19	103,584	60,164,946	36,309,000	2,017,000	2,387,968
54	Mar 21, 2026 01:07	103,622	61,504,209	35,314,000	3,026,000	2,342,912
55	Mar 21, 2026 01:08	103,708	71,102,533	36,353,000	2,019,000	2,342,912
56	Mar 21, 2026 01:24	104,216	66,942,386	37,546,000	1,014,000	2,342,912
57	Mar 21, 2026 01:25	105,230	70,295,641	35,940,000	2,995,000	2,392,064
58	Mar 21, 2026 01:24	108,932	66,771,920	39,298,000	1,007,000	2,392,064
59	Mar 21, 2026 01:13	109,000	68,856,464	38,314,000	2,016,000	2,371,584
60	Mar 21, 2026 01:21	110,457	61,507,846	38,876,000	1,993,000	2,351,104

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