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 listJul 8, 2021 19:44

Yuriy LyfenkoScore: 112,224Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 8, 2021 19:46	110,938	71,176,453	39,045,000	2,002,000	2,334,720
2	Jul 8, 2021 19:53	111,111	65,160,302	38,103,000	3,008,000	2,531,328
3	Jul 8, 2021 19:53	111,246	64,678,347	38,150,000	3,011,000	2,523,136
4	Jul 8, 2021 19:46	111,270	60,270,028	39,162,000	2,008,000	2,334,720
5	Jul 8, 2021 19:53	111,278	69,658,392	38,161,000	3,012,000	2,527,232
6	Jul 8, 2021 19:46	111,295	71,510,644	39,171,000	2,008,000	2,523,136
7	Jul 8, 2021 19:44	111,295	63,869,206	39,171,000	2,008,000	2,519,040
8	Jul 8, 2021 19:44	111,305	67,884,989	38,170,000	3,013,000	2,338,816
9	Jul 8, 2021 19:53	111,338	59,892,681	39,186,000	2,009,000	2,383,872
10	Jul 8, 2021 19:46	111,341	67,292,611	39,187,000	2,009,000	2,527,232
11	Jul 8, 2021 19:44	111,384	67,643,304	39,202,000	2,010,000	2,523,136
12	Jul 8, 2021 19:53	111,411	66,271,810	38,206,000	3,016,000	2,334,720
13	Jul 8, 2021 19:44	111,514	64,273,265	39,248,000	2,012,000	2,330,624
14	Jul 8, 2021 19:46	111,559	64,307,666	38,257,000	3,020,000	2,519,040
15	Jul 8, 2021 19:46	111,592	68,294,045	39,275,000	2,014,000	2,334,720
16	Jul 8, 2021 19:44	111,603	66,590,967	39,279,000	2,014,000	2,322,432
17	Jul 8, 2021 19:44	111,630	67,250,443	39,289,000	2,014,000	2,334,720
18	Jul 8, 2021 19:44	112,068	64,029,456	39,443,000	2,022,000	2,519,040
19	Jul 8, 2021 19:44	112,100	68,544,513	39,454,000	2,023,000	2,531,328
20	Jul 8, 2021 19:53	112,224	65,285,010	40,511,000	1,012,000	2,531,328
21	Jul 8, 2021 19:53	112,295	61,832,184	40,536,000	1,013,000	2,387,968
22	Jul 8, 2021 19:44	112,395	71,456,866	39,558,000	2,028,000	2,334,720
23	Jul 8, 2021 19:53	112,435	72,498,266	40,587,000	1,014,000	2,334,720
24	Jul 8, 2021 19:46	112,478	77,946,201	40,602,000	1,015,000	2,514,944
25	Jul 8, 2021 19:46	112,508	71,781,682	40,613,000	1,015,000	2,527,232
26	Jul 8, 2021 19:53	112,589	70,244,858	39,675,000	1,983,000	2,523,136
27	Jul 8, 2021 19:46	112,627	69,582,918	40,656,000	1,016,000	2,523,136
28	Jul 8, 2021 19:44	114,115	104,826,955	42,222,683	0	2,195,456
29	Jul 8, 2021 19:53	114,325	98,105,138	42,300,091	0	2,203,648
30	Jul 13, 2021 13:17	114,354	103,542,788	42,311,125	0	2,199,552
31	Jul 8, 2021 19:46	114,394	102,798,443	42,325,897	0	2,215,936
32	Jul 8, 2021 19:44	114,542	101,159,555	42,380,377	0	2,191,360
33	Jul 8, 2021 19:53	114,663	109,836,386	42,425,210	0	2,187,264
34	Jul 13, 2021 13:17	114,672	100,999,354	42,428,733	0	2,195,456
35	Jul 8, 2021 19:46	114,891	113,249,499	42,509,527	0	2,187,264
36	Jul 8, 2021 19:44	115,132	99,830,807	42,598,773	0	2,195,456
37	Jul 13, 2021 13:17	115,236	101,164,659	42,637,239	0	2,203,648
38	Jul 8, 2021 19:46	115,561	103,840,188	42,757,440	0	2,199,552
39	Jul 8, 2021 19:53	115,616	99,781,588	42,777,773	0	2,199,552

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