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 listAug 15, 2021 17:45

Igor VolkovScore: 104,941Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Aug 15, 2021 17:46	97,692	59,241,789	34,138,000	2,008,000	2,289,664
2	Aug 15, 2021 17:46	97,884	59,646,862	34,205,000	2,012,000	2,289,664
3	Aug 15, 2021 17:46	98,341	65,394,074	34,365,000	2,021,000	2,289,664
4	Aug 15, 2021 17:46	98,349	64,853,510	35,379,000	1,010,000	2,289,664
5	Aug 15, 2021 17:46	98,808	65,206,228	35,544,000	1,015,000	2,527,232
6	Aug 15, 2021 17:46	98,827	62,588,693	36,566,000	0	2,289,664
7	Aug 15, 2021 17:46	99,049	65,773,392	35,630,000	1,018,000	2,289,664
8	Aug 15, 2021 17:46	99,576	63,909,345	34,852,000	1,991,000	2,289,664
9	Aug 15, 2021 17:46	99,611	67,290,625	35,860,000	996,000	2,273,280
10	Aug 15, 2021 17:46	101,946	105,057,237	37,720,021	0	2,273,280
11	Aug 15, 2021 17:44	103,200	60,945,468	36,175,000	2,009,000	2,289,664
12	Aug 15, 2021 17:46	103,222	102,224,559	38,192,298	0	2,260,992
13	Aug 15, 2021 17:46	103,493	87,319,436	38,292,472	0	2,260,992
14	Aug 15, 2021 17:44	103,792	70,848,332	36,382,000	2,021,000	2,265,088
15	Aug 15, 2021 17:44	103,849	60,633,208	37,413,000	1,011,000	2,519,040
16	Aug 15, 2021 17:45	104,157	60,439,055	37,524,000	1,014,000	2,289,664
17	Aug 15, 2021 17:44	104,249	68,316,163	38,572,000	0	2,519,040
18	Aug 15, 2021 17:45	104,273	64,122,952	37,566,000	1,015,000	2,265,088
19	Aug 15, 2021 17:45	104,941	64,386,631	36,837,000	1,991,000	2,289,664
20	Aug 15, 2021 17:45	104,973	64,334,648	36,849,000	1,991,000	2,289,664
21	Aug 15, 2021 17:44	104,976	67,309,856	36,850,000	1,991,000	2,289,664
22	Aug 15, 2021 17:44	104,992	68,917,251	37,851,000	996,000	2,273,280
23	Aug 15, 2021 17:45	105,049	64,754,249	36,875,000	1,993,000	2,371,584
24	Aug 15, 2021 17:45	105,197	61,122,379	37,925,000	998,000	2,289,664
25	Aug 15, 2021 17:44	105,291	96,832,744	38,957,568	0	2,256,896
26	Aug 15, 2021 17:44	105,300	62,071,401	36,963,000	1,998,000	2,289,664
27	Aug 15, 2021 17:45	105,632	64,878,969	38,082,000	1,002,000	2,289,664
28	Aug 15, 2021 17:45	105,978	60,056,233	38,207,000	1,005,000	2,527,232
29	Aug 15, 2021 17:45	105,986	116,851,212	39,214,929	0	2,256,896
30	Aug 15, 2021 17:45	106,011	65,019,536	37,213,000	2,011,000	2,289,664
31	Aug 15, 2021 17:44	106,538	69,576,228	38,409,000	1,010,000	2,269,184
32	Aug 15, 2021 17:44	106,622	61,726,622	38,439,000	1,011,000	2,355,200
33	Aug 15, 2021 17:44	106,682	108,027,152	39,472,305	0	2,260,992
34	Aug 15, 2021 17:45	106,699	106,597,314	39,478,613	0	2,269,184
35	Aug 15, 2021 17:44	107,102	108,874,762	39,627,755	0	2,265,088
36	Aug 15, 2021 17:45	107,311	109,899,231	39,705,095	0	2,256,896

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