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.

Back to listSep 28, 2023 16:30

mmalczakScore: 69,830Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 28, 2023 16:30	68,822	46,002,297	24,446,000	1,018,000	2,424,832
2	Sep 28, 2023 17:12	68,851	44,873,837	24,456,000	1,019,000	2,428,928
3	Sep 28, 2023 17:12	68,868	45,918,241	25,481,000	0	2,428,928
4	Sep 28, 2023 17:12	68,965	46,798,246	25,517,000	0	2,535,424
5	Sep 28, 2023 17:12	68,981	51,398,396	25,523,000	0	2,535,424
6	Sep 28, 2023 16:30	68,989	46,483,957	25,526,000	0	2,433,024
7	Sep 28, 2023 17:12	68,992	51,878,147	25,527,000	0	2,273,280
8	Sep 28, 2023 17:15	69,003	48,260,464	25,531,000	0	2,273,280
9	Sep 28, 2023 17:12	69,076	46,109,860	25,558,000	0	2,420,736
10	Sep 28, 2023 17:12	69,084	49,897,816	24,539,000	1,022,000	2,428,928
11	Sep 28, 2023 17:15	69,149	47,826,823	25,585,000	0	2,273,280
12	Sep 28, 2023 17:12	69,159	50,976,065	25,589,000	0	2,424,832
13	Sep 28, 2023 16:30	69,162	52,571,014	25,590,000	0	2,535,424
14	Sep 28, 2023 16:30	69,168	53,098,298	25,592,000	0	2,535,424
15	Sep 28, 2023 16:30	69,203	50,101,159	25,605,000	0	2,535,424
16	Sep 28, 2023 17:15	69,216	49,257,028	24,586,000	1,024,000	2,535,424
17	Sep 28, 2023 16:30	69,216	49,601,706	24,586,000	1,024,000	2,273,280
18	Sep 28, 2023 16:30	69,224	50,434,454	24,589,000	1,024,000	2,535,424
19	Sep 28, 2023 17:12	69,238	51,375,285	25,618,000	0	2,428,928
20	Sep 28, 2023 17:15	69,251	51,714,918	25,623,000	0	2,428,928
21	Sep 28, 2023 17:12	69,265	51,512,493	24,603,000	1,025,000	2,424,832
22	Sep 28, 2023 16:30	69,343	51,910,181	24,631,000	1,026,000	2,424,832
23	Sep 28, 2023 16:30	69,354	56,202,047	24,635,000	1,026,000	2,273,280
24	Sep 28, 2023 17:15	69,357	50,537,403	24,636,000	1,026,000	2,433,024
25	Sep 28, 2023 17:12	69,368	50,982,136	24,640,000	1,026,000	2,535,424
26	Sep 28, 2023 16:30	69,370	56,226,323	25,667,000	0	2,535,424
27	Sep 28, 2023 17:15	69,497	57,308,691	25,714,000	0	2,433,024
28	Sep 28, 2023 17:15	69,511	55,809,870	25,719,000	0	2,535,424
29	Sep 28, 2023 17:12	69,646	49,852,425	24,778,000	991,000	2,433,024
30	Sep 28, 2023 16:30	69,751	55,896,392	24,816,000	992,000	2,428,928
31	Sep 28, 2023 16:30	69,830	52,351,990	23,850,000	1,987,000	2,433,024
32	Sep 28, 2023 16:30	69,854	51,734,483	24,852,000	994,000	2,535,424
33	Sep 28, 2023 16:30	69,862	58,642,141	23,861,000	1,988,000	2,433,024
34	Sep 28, 2023 17:15	69,865	55,312,100	23,862,000	1,988,000	2,535,424
35	Sep 28, 2023 17:12	69,878	53,555,721	24,861,000	994,000	2,437,120
36	Sep 28, 2023 17:12	69,878	51,783,866	24,861,000	994,000	2,273,280
37	Sep 28, 2023 16:30	69,881	55,332,219	24,862,000	994,000	2,420,736
38	Sep 28, 2023 17:12	69,884	55,878,467	25,857,000	0	2,535,424
39	Sep 28, 2023 17:12	69,884	53,159,397	25,857,000	0	2,437,120
40	Sep 28, 2023 17:12	69,903	52,262,703	25,864,000	0	2,535,424
41	Sep 28, 2023 16:30	69,908	50,664,433	24,872,000	994,000	2,273,280
42	Sep 28, 2023 16:30	69,908	47,231,995	24,832,000	1,034,000	2,535,424
43	Sep 28, 2023 16:30	69,922	51,421,365	24,876,000	995,000	2,428,928
44	Sep 28, 2023 17:15	69,932	52,586,194	23,885,000	1,990,000	2,424,832
45	Sep 28, 2023 17:12	69,962	52,189,983	24,891,000	995,000	2,428,928
46	Sep 28, 2023 17:12	72,258	83,923,870	26,735,639	0	2,281,472
47	Sep 28, 2023 16:30	72,260	88,855,471	26,736,052	0	2,277,376
48	Sep 28, 2023 16:30	72,280	96,602,029	26,743,647	0	2,285,568
49	Sep 28, 2023 17:12	72,333	95,911,864	26,763,344	0	2,289,664
50	Sep 28, 2023 17:15	72,358	98,962,388	26,772,364	0	2,285,568
51	Sep 28, 2023 16:30	72,373	87,549,204	26,777,876	0	2,285,568
52	Sep 28, 2023 17:15	72,459	95,233,030	26,809,690	0	2,297,856
53	Sep 28, 2023 17:12	72,481	105,226,574	26,817,914	0	2,289,664
54	Sep 28, 2023 17:12	72,520	80,157,726	26,832,215	0	2,285,568
55	Sep 28, 2023 17:12	72,527	93,475,130	26,835,054	0	2,281,472
56	Sep 28, 2023 16:30	72,530	92,708,569	26,836,275	0	2,277,376
57	Sep 28, 2023 16:30	72,537	98,596,770	26,838,728	0	2,285,568
58	Sep 28, 2023 16:30	72,557	94,260,240	26,846,140	0	2,285,568
59	Sep 28, 2023 17:15	72,563	87,259,090	26,848,314	0	2,289,664
60	Sep 28, 2023 17:12	73,062	93,505,486	27,032,908	0	2,281,472

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