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 listNov 28, 2024 19:03

Joad NacerError

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	Error
1	Nov 28, 2024 19:03	0	0	0	0	0	Error: expected "429496532585 ", got "429496531937 "	stderr
2	Nov 28, 2024 19:03	0	0	0	0	0	Error: expected "429496499351 ", got "429496495130 "	stderr
3	Nov 28, 2024 19:03	0	0	0	0	0	Error: expected "429496464894 ", got "373661957197 "	stderr
4	Nov 28, 2024 19:03	0	0	0	0	0	Error: expected "429496437842 ", got "395136740484 "	stderr
5	Nov 28, 2024 19:03	0	0	0	0	0	Error: expected "429496526363 ", got "429496524309 "	stderr
6	Nov 28, 2024 19:01	0	0	0	0	0	Error: expected "429496466097 ", got "425201500205 "	stderr
7	Nov 28, 2024 19:01	0	0	0	0	0	Error: expected "429496468668 ", got "412316619596 "	stderr
8	Nov 28, 2024 18:48	0	0	0	0	0	Error: expected "429496502305 ", got "429496500073 "	stderr
9	Nov 28, 2024 18:48	0	0	0	0	0	Error: expected "429496442842 ", got "395136745774 "	stderr
10	Nov 28, 2024 18:48	59,314	48,332,186	19,951,000	1,995,000	2,424,832
11	Nov 28, 2024 18:48	59,376	41,453,460	20,971,000	998,000	2,531,328
12	Nov 28, 2024 19:01	59,381	46,711,929	19,974,000	1,997,000	2,428,928
13	Nov 28, 2024 18:48	59,449	45,528,391	19,997,000	1,999,000	2,531,328
14	Nov 28, 2024 18:48	59,527	42,946,183	21,024,000	1,001,000	2,514,944
15	Nov 28, 2024 19:01	59,532	44,877,999	21,026,000	1,001,000	2,531,328
16	Nov 28, 2024 19:01	59,565	47,995,315	21,038,000	1,001,000	2,269,184
17	Nov 28, 2024 18:48	59,581	44,673,192	21,043,000	1,002,000	2,531,328
18	Nov 28, 2024 19:01	59,584	43,283,932	20,042,000	2,004,000	2,433,024
19	Nov 28, 2024 18:48	59,616	46,920,201	21,056,000	1,002,000	2,269,184
20	Nov 28, 2024 19:01	59,619	49,743,539	21,057,000	1,002,000	2,510,848
21	Nov 28, 2024 18:48	59,619	47,847,266	21,057,000	1,002,000	2,428,928
22	Nov 28, 2024 18:48	59,622	46,853,572	22,060,000	0	2,433,024
23	Nov 28, 2024 18:48	59,630	46,235,514	21,061,000	1,002,000	2,424,832
24	Nov 28, 2024 19:01	59,630	45,236,004	21,061,000	1,002,000	2,531,328
25	Nov 28, 2024 19:01	59,646	42,986,498	21,066,000	1,003,000	2,531,328
26	Nov 28, 2024 19:03	59,649	43,995,257	21,067,000	1,003,000	2,433,024
27	Nov 28, 2024 18:48	59,649	47,552,723	21,067,000	1,003,000	2,531,328
28	Nov 28, 2024 19:01	59,654	44,754,614	21,069,000	1,003,000	2,433,024
29	Nov 28, 2024 18:48	59,662	48,674,775	21,072,000	1,003,000	2,269,184
30	Nov 28, 2024 19:03	59,678	54,509,851	21,078,000	1,003,000	2,428,928
31	Nov 28, 2024 19:01	59,681	41,890,394	21,079,000	1,003,000	2,441,216
32	Nov 28, 2024 19:01	59,700	47,338,565	22,089,000	0	2,514,944
33	Nov 28, 2024 19:01	59,700	43,538,053	21,085,000	1,004,000	2,433,024
34	Nov 28, 2024 19:01	59,762	42,986,090	21,107,000	1,005,000	2,531,328
35	Nov 28, 2024 18:48	59,822	42,456,226	21,128,000	1,006,000	2,433,024
36	Nov 28, 2024 19:03	59,835	43,629,992	20,127,000	2,012,000	2,531,328

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