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	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496468691 ", got "386546847635 "	stderr
2	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496458923 ", got "373661953436 "	stderr
3	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496459969 ", got "395136763457 "	stderr
4	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496480810 ", got "377956938247 "	stderr
5	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496459146 ", got "386546837874 "	stderr
6	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496436188 ", got "390841777605 "	stderr
7	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496490295 ", got "416611603662 "	stderr
8	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496474035 ", got "416611587185 "	stderr
9	Oct 14, 2024 17:40	0	0	0	0	0	Error: expected "429496482078 ", got "416611595705 "	stderr
10	Oct 14, 2024 17:39	0	0	0	0	0	Error: expected "429496462358 ", got "386546841474 "	stderr
11	Oct 14, 2024 17:40	62,449	43,678,575	22,102,000	1,004,000	2,535,424
12	Oct 14, 2024 17:40	62,473	49,222,236	22,110,000	1,005,000	2,437,120
13	Oct 14, 2024 17:40	62,592	46,432,669	22,153,000	1,006,000	2,428,928
14	Oct 14, 2024 17:40	62,638	43,103,306	22,169,000	1,007,000	2,428,928
15	Oct 14, 2024 17:40	62,746	44,998,803	22,207,000	1,009,000	2,428,928
16	Oct 14, 2024 17:40	62,773	53,998,149	22,217,000	1,009,000	2,424,832
17	Oct 14, 2024 17:40	62,792	45,931,653	21,213,000	2,020,000	2,535,424
18	Oct 14, 2024 17:40	62,835	52,289,695	22,239,000	1,010,000	2,424,832
19	Oct 14, 2024 17:40	62,865	47,732,843	21,238,000	2,022,000	2,535,424
20	Oct 14, 2024 17:40	62,914	50,934,100	22,266,000	1,012,000	2,433,024
21	Oct 14, 2024 17:40	62,924	51,460,190	22,270,000	1,012,000	2,437,120
22	Oct 14, 2024 17:40	63,008	43,688,531	21,286,000	2,027,000	2,433,024
23	Oct 14, 2024 17:40	63,008	44,474,550	21,286,000	2,027,000	2,420,736
24	Oct 14, 2024 17:40	63,059	49,207,473	21,304,000	2,028,000	2,420,736
25	Oct 14, 2024 17:40	63,103	51,785,390	21,318,000	2,030,000	2,433,024
26	Oct 14, 2024 17:40	63,270	45,317,442	22,393,000	1,017,000	2,535,424
27	Oct 14, 2024 17:40	63,373	47,600,726	21,409,000	2,039,000	2,428,928
28	Oct 14, 2024 17:40	63,424	49,972,232	22,490,000	977,000	2,535,424

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