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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mmalczakScore: 84,227Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 18, 2023 12:43	82,668	56,779,831	30,587,000	0	2,527,232
2	Sep 18, 2023 12:37	82,754	56,425,594	29,599,000	1,020,000	2,289,664
3	Sep 18, 2023 12:37	82,941	56,008,739	29,666,000	1,022,000	2,289,664
4	Sep 18, 2023 12:36	83,005	59,415,501	30,712,000	0	2,289,664
5	Sep 18, 2023 12:37	83,319	58,550,495	29,834,000	994,000	2,289,664
6	Sep 18, 2023 12:45	83,354	57,949,032	28,852,000	1,989,000	2,289,664
7	Sep 18, 2023 12:43	83,400	59,676,355	29,863,000	995,000	2,289,664
8	Sep 18, 2023 12:43	83,400	59,914,828	29,863,000	995,000	2,289,664
9	Sep 18, 2023 12:45	83,408	56,498,869	28,870,000	1,991,000	2,289,664
10	Sep 18, 2023 12:45	83,411	57,284,512	28,871,000	1,991,000	2,519,040
11	Sep 18, 2023 12:37	83,430	56,548,401	28,878,000	1,991,000	2,289,664
12	Sep 18, 2023 12:36	83,465	61,967,095	29,886,000	996,000	2,289,664
13	Sep 18, 2023 12:43	83,470	55,259,491	28,892,000	1,992,000	2,289,664
14	Sep 18, 2023 12:45	83,476	53,488,398	29,857,000	1,029,000	2,289,664
15	Sep 18, 2023 12:45	83,524	57,508,815	29,908,000	996,000	2,277,376
16	Sep 18, 2023 12:37	83,584	52,507,765	28,931,000	1,995,000	2,289,664
17	Sep 18, 2023 12:37	83,619	50,644,829	28,943,000	1,996,000	2,277,376
18	Sep 18, 2023 12:36	83,668	53,624,355	28,960,000	1,997,000	2,289,664
19	Sep 18, 2023 12:43	83,708	56,715,022	29,973,000	999,000	2,273,280
20	Sep 18, 2023 12:37	83,857	60,209,785	29,026,000	2,001,000	2,289,664
21	Sep 18, 2023 12:43	83,857	57,910,518	29,026,000	2,001,000	2,289,664
22	Sep 18, 2023 12:36	83,859	55,112,802	29,027,000	2,001,000	2,289,664
23	Sep 18, 2023 12:45	83,892	55,050,081	29,038,000	2,002,000	2,269,184
24	Sep 18, 2023 12:36	83,986	55,832,687	29,071,000	2,004,000	2,269,184
25	Sep 18, 2023 12:36	83,992	52,307,769	29,072,000	2,005,000	2,289,664
26	Sep 18, 2023 12:37	83,995	60,088,664	30,076,000	1,002,000	2,273,280
27	Sep 18, 2023 12:36	84,086	58,033,141	29,105,000	2,007,000	2,289,664
28	Sep 18, 2023 12:45	84,089	57,736,023	29,106,000	2,007,000	2,527,232
29	Sep 18, 2023 12:37	84,143	52,932,527	29,125,000	2,008,000	2,289,664
30	Sep 18, 2023 12:45	84,151	55,837,515	30,132,000	1,004,000	2,289,664
31	Sep 18, 2023 12:37	84,227	52,853,833	29,154,000	2,010,000	2,273,280
32	Sep 18, 2023 12:37	84,238	57,462,397	30,163,000	1,005,000	2,289,664
33	Sep 18, 2023 12:37	84,259	55,231,308	29,165,000	2,011,000	2,269,184
34	Sep 18, 2023 12:37	84,268	50,761,937	29,168,000	2,011,000	2,289,664
35	Sep 18, 2023 12:37	84,281	56,892,036	29,173,000	2,011,000	2,289,664
36	Sep 18, 2023 12:37	84,405	53,560,743	29,216,000	2,014,000	2,289,664
37	Sep 18, 2023 12:36	84,427	55,112,624	29,223,000	2,015,000	2,289,664
38	Sep 18, 2023 12:45	84,468	55,006,913	31,253,000	0	2,273,280
39	Sep 18, 2023 12:43	84,508	54,219,203	29,251,000	2,017,000	2,273,280
40	Sep 18, 2023 12:37	84,624	54,143,989	29,291,000	2,020,000	2,383,872
41	Sep 18, 2023 12:37	84,851	52,923,124	30,383,000	1,012,000	2,289,664
42	Sep 18, 2023 12:43	85,111	53,878,389	30,476,000	1,015,000	2,273,280
43	Sep 18, 2023 12:43	85,170	52,793,726	31,513,000	0	2,289,664
44	Sep 18, 2023 12:37	85,275	91,900,848	31,551,832	0	2,273,280
45	Sep 18, 2023 12:37	85,318	97,408,563	31,567,631	0	2,256,896
46	Sep 18, 2023 12:43	85,403	115,653,112	31,599,247	0	2,260,992
47	Sep 18, 2023 12:36	85,416	57,924,476	30,585,000	1,019,000	2,289,664
48	Sep 18, 2023 12:37	85,481	59,611,527	30,608,000	1,020,000	2,289,664
49	Sep 18, 2023 12:45	85,637	102,696,278	31,685,578	0	2,265,088
50	Sep 18, 2023 12:37	85,681	107,197,923	31,702,064	0	2,273,280
51	Sep 18, 2023 12:36	85,734	97,742,839	31,721,657	0	2,265,088
52	Sep 18, 2023 12:45	85,769	92,976,588	31,734,412	0	2,265,088
53	Sep 18, 2023 12:36	86,136	102,526,600	31,870,469	0	2,265,088
54	Sep 18, 2023 12:37	86,245	96,269,668	31,910,649	0	2,260,992
55	Sep 18, 2023 12:43	86,305	100,953,337	31,933,015	0	2,269,184
56	Sep 18, 2023 12:37	86,344	99,529,591	31,947,420	0	2,265,088
57	Sep 18, 2023 12:36	86,464	105,075,725	31,991,641	0	2,269,184
58	Sep 18, 2023 12:45	86,597	97,975,067	32,040,717	0	2,256,896
59	Sep 18, 2023 12:43	86,678	106,084,966	32,070,987	0	2,265,088
60	Sep 18, 2023 12:37	86,743	95,582,745	32,094,732	0	2,265,088

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