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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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Nov 28, 2024 22:26	0	0	0	0	0	Error: expected "429496556412 ", got "429496555486 "	stderr
2	Nov 28, 2024 22:19	0	0	0	0	0	Error: expected "429496487556 ", got "429496486975 "	stderr
3	Nov 28, 2024 22:19	0	0	0	0	0	Error: expected "429496502732 ", got "429496500983 "	stderr
4	Nov 28, 2024 20:44	0	0	0	0	0	Error: expected "429496487684 ", got "399431752357 "	stderr
5	Nov 28, 2024 20:44	0	0	0	0	0	Error: expected "429496506797 ", got "429496503095 "	stderr
6	Nov 28, 2024 20:44	0	0	0	0	0	Error: expected "429496508489 ", got "429496506371 "	stderr
7	Nov 28, 2024 20:12	0	0	0	0	0	Error: expected "429496495761 ", got "416611608950 "	stderr
8	Nov 28, 2024 20:12	0	0	0	0	0	Error: expected "429496464241 ", got "395136763956 "	stderr
9	Nov 28, 2024 20:12	0	0	0	0	0	Error: expected "429496538657 ", got "429496538339 "	stderr
10	Nov 28, 2024 20:12	0	0	0	0	0	Error: expected "429496480176 ", got "425201517986 "	stderr
11	Nov 28, 2024 20:12	0	0	0	0	0	Error: expected "429496462327 ", got "395136764453 "	stderr
12	Nov 28, 2024 22:19	0	0	0	0	0	Error: expected "429496569699 ", got "429496567787 "	stderr
13	Nov 28, 2024 22:19	0	0	0	0	0	Error: expected "429496540585 ", got "429496538551 "	stderr
14	Nov 28, 2024 22:19	0	0	0	0	0	Error: expected "429496447000 ", got "382251863163 "	stderr
15	Nov 28, 2024 22:26	0	0	0	0	0	Error: expected "429496461426 ", got "399431726834 "	stderr
16	Nov 28, 2024 22:26	0	0	0	0	0	Error: expected "429496475770 ", got "412316626134 "	stderr
17	Nov 28, 2024 22:26	0	0	0	0	0	Error: expected "429496544016 ", got "429496541989 "	stderr
18	Nov 28, 2024 22:26	0	0	0	0	0	Error: expected "429496482022 ", got "403726708367 "	stderr
19	Nov 28, 2024 22:19	59,292	45,263,936	20,941,000	997,000	2,428,928
20	Nov 28, 2024 20:44	59,327	45,206,523	20,954,000	997,000	2,531,328
21	Nov 28, 2024 20:44	59,346	45,226,997	19,962,000	1,996,000	2,531,328
22	Nov 28, 2024 20:12	59,349	39,576,642	20,961,000	998,000	2,531,328
23	Nov 28, 2024 20:12	59,357	49,978,762	19,966,000	1,996,000	2,531,328
24	Nov 28, 2024 22:19	59,368	49,972,616	20,968,000	998,000	2,531,328
25	Nov 28, 2024 20:12	59,370	48,359,670	20,969,000	998,000	2,531,328
26	Nov 28, 2024 22:19	59,373	44,449,916	19,971,000	1,997,000	2,531,328
27	Nov 28, 2024 20:44	59,403	41,218,500	20,980,000	999,000	2,424,832
28	Nov 28, 2024 22:19	59,419	46,045,201	20,986,000	999,000	2,531,328
29	Nov 28, 2024 22:19	59,424	45,409,151	20,988,000	999,000	2,420,736
30	Nov 28, 2024 20:44	59,465	44,190,798	21,002,000	1,000,000	2,428,928
31	Nov 28, 2024 22:26	59,470	42,777,184	21,004,000	1,000,000	2,510,848
32	Nov 28, 2024 20:12	59,484	40,742,149	21,009,000	1,000,000	2,428,928
33	Nov 28, 2024 20:12	59,503	40,667,656	21,016,000	1,000,000	2,510,848
34	Nov 28, 2024 22:26	59,519	47,254,569	20,020,000	2,002,000	2,424,832
35	Nov 28, 2024 20:44	59,527	44,789,575	21,024,000	1,001,000	2,531,328
36	Nov 28, 2024 22:19	59,559	45,410,955	21,036,000	1,001,000	2,531,328
37	Nov 28, 2024 22:26	59,573	44,993,843	21,041,000	1,001,000	2,433,024
38	Nov 28, 2024 20:12	59,581	47,425,993	21,043,000	1,002,000	2,510,848
39	Nov 28, 2024 20:44	59,584	43,565,979	21,044,000	1,002,000	2,519,040
40	Nov 28, 2024 22:19	59,592	50,930,706	21,047,000	1,002,000	2,428,928
41	Nov 28, 2024 20:44	59,597	45,979,272	21,049,000	1,002,000	2,424,832
42	Nov 28, 2024 20:44	59,611	41,671,208	20,051,000	2,005,000	2,433,024
43	Nov 28, 2024 20:12	59,641	43,711,862	21,064,000	1,003,000	2,531,328
44	Nov 28, 2024 22:19	59,684	44,343,391	21,080,000	1,003,000	2,437,120
45	Nov 28, 2024 22:19	59,684	49,629,197	21,080,000	1,003,000	2,531,328
46	Nov 28, 2024 20:44	59,751	44,693,642	21,104,000	1,004,000	2,428,928
47	Nov 28, 2024 20:12	67,508	55,749,611	23,979,000	999,000	2,269,184
48	Nov 28, 2024 20:12	73,792	51,038,914	27,303,000	0	2,433,024

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